Trolley capable of preventing blocks from falling off

Abstract

The block falling prevention trolley comprises a main portal frame lower longitudinal beam, a supporting framework and a tunnel face, the upper side of a mounting plate is fixedly connected with two sets of symmetrically-arranged stand columns, the outer portions of a second construction table and a third construction table are fixedly connected with connecting pieces, and the outer portions of the connecting pieces are rotationally connected with baffles. A telescopic plate is slidably connected to the inner side of the mounting groove, a spring is fixedly connected to the interior of the mounting groove, a driving motor is fixedly connected to the exterior of the mounting cylinder, a rotating shaft is fixedly connected to one side of the driving motor, and a steel rope is wound around the exterior of the rotating shaft. According to the device, the rotatable baffle is installed on the upper-layer construction table, the tail end of the rotatable baffle can abut against the edge of the lower layer, equipment is prevented from being damaged by soil blocks or stones, when a constructor conducts construction on the lower layer, the rotatable baffle is tightly attached to the tunnel face through the telescopic plate, the constructor is protected against damage of falling objects, and the telescopic plate is telescopic and supported by force applied by the spring; and firm fit with the tunnel surface is ensured, and the safety is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of trolleys, and particularly relates to a trolley for preventing falling blocks. Background Art

[0002] During the tunnel construction and maintenance process, as an important construction equipment, the trolley is widely used for material transportation, personnel transportation, and the construction of operation platforms. For example, in tunnel construction, sometimes it is necessary to carry out secondary lining of the tunnel. In order to facilitate the secondary lining operation, a special trolley for tunnel construction is used. By using the trolley, the staff can conveniently carry out the secondary lining of the tunnel inner wall.

[0003] However, in this special working environment of the tunnel, due to factors such as complex geological structures, serious rock weathering, and blasting operations during the construction process, the soil blocks and stone blocks on the top or side walls of the tunnel often fall. These falling soil blocks and stone blocks will not only damage the tunnel construction equipment, but more importantly, they often fall at a very fast speed, posing a serious safety threat to the construction workers working on the trolley. Therefore, in view of the above technical problems, a trolley for preventing falling blocks is proposed here. Content of the Utility Model

[0004] The purpose of the utility model is to provide a trolley for preventing falling blocks. By installing a rotatable baffle on the upper construction platform, the end of which can abut against the lower edge to prevent the soil blocks or stone blocks from damaging the equipment. When the construction workers are working on the lower layer, the rotatable baffle can be rotated and the telescopic plate can be closely attached to the tunnel surface to protect the construction workers from the falling objects. The telescopic plate can be telescopic and is supported by the force of the spring to ensure a firm fit with the tunnel surface, further enhancing the safety.

[0005] The utility model is realized through the following technical solutions:

[0006] A trolley for preventing falling blocks includes a lower longitudinal beam of the main gantry, a support skeleton, and a tunnel surface. An installation plate is fixedly connected to the inner side of the support skeleton, and the installation plate is located in the lower part of the support skeleton. Two groups of symmetrically arranged columns are fixedly connected to the upper side of the installation plate. A first construction platform, a second construction platform, and a third construction platform are fixedly connected to the outside of the columns in sequence from bottom to top. Connectors are fixedly connected to the outside of the second construction platform and the third construction platform. A baffle is rotatably connected to the outside of the connectors. An installation groove is formed in the outside of the baffle. A telescopic plate is slidably connected to the inside of the installation groove. A spring is fixedly connected to the inside of the installation groove, and the spring is fixedly connected to one side of the telescopic plate. Installation cylinders are fixedly connected to the upper sides of the second construction platform and the third construction platform. A driving motor is fixedly connected to the outside of the installation cylinder. A rotating shaft is fixedly connected to one side of the driving motor. A steel wire rope is wound around the outside of the rotating shaft, and the end of the steel wire rope is fixedly connected to the outside of the baffle.

[0007] Preferably, a main gantry cross beam is fixedly connected to the upper side of the lower longitudinal beam of the main gantry, and a framework connecting beam is hinged between the main gantry cross beam and the first construction platform.

[0008] Preferably, a top construction frame is fixedly connected to the upper side of the main gantry cross beam.

[0009] Preferably, a ladder is fixedly connected to the outside of the column.

[0010] Preferably, the first construction platform, the second construction platform and the third construction platform are arranged at equal intervals in the vertical direction, and the lengths of the first construction platform, the second construction platform and the third construction platform decrease from bottom to top, and the ends of the first construction platform, the second construction platform and the third construction platform are all close to the tunnel surface.

[0011] Preferably, the telescopic plate outside the baffle installed on the second construction platform can be abutted against the tunnel surface and the upper surface of the first construction platform.

[0012] Preferably, the telescopic plate outside the baffle installed on the third construction platform can be abutted against the tunnel surface and the upper surface of the installation cylinder installed on the second construction platform.

[0013] The technical solution of the present utility model has at least the following beneficial effects:

[0014] A kind of anti-falling block trolley proposed by the present utility model, by setting a rotatable baffle on the upper construction platform, so that its end can abut against the edge of the lower construction platform, thereby effectively avoiding the falling of soil blocks or stones dropped in the tunnel and damaging the tunnel construction equipment. When construction workers need to construct on the lower construction platform, the baffle can be rotated by winding the steel rope until the telescopic plate at the end of the baffle abuts against the tunnel surface, thereby blocking the top of the construction workers and avoiding the falling of soil blocks or stones in the tunnel from hurting the construction workers. And through the telescopic telescopic plate and the elastic force provided by the spring when the telescopic plate shrinks into the end of the baffle, the end of the telescopic plate can be strongly abutted against the tunnel surface, avoiding the falling of soil blocks or stones through the edge of the telescopic plate, and further ensuring the safety of construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is Figure 1 an enlarged view of A in

[0017] Figure 3 is Figure 1 an enlarged view of B in

[0018] Figure 4 is Figure 1 An enlarged view of C in;

[0019] Figure 5 is Figure 1 An enlarged view of D in;

[0020] Icon: 1. Lower longitudinal beam of main gantry; 2. Cross beam of main gantry; 3. Support framework; 4. Framework connecting beam; 5. Tunnel surface; 6. Top construction frame; 7. Installation plate; 8. Column; 9. Ladder; 10. First construction platform; 11. Second construction platform; 12. Third construction platform; 13. Connector; 14. Baffle; 15. Installation groove; 16. Telescopic plate; 17. Spring; 18. Installation cylinder; 19. Driving motor; 20. Rotating shaft; 21. Steel rope. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-5 , a kind of anti-drop block trolley proposed by the present invention includes a lower longitudinal beam 1 of the main gantry, a support framework 3 and a tunnel surface 5. An installation plate 7 is fixedly connected to the inner side of the support framework 3, and the installation plate 7 is located in the lower part of the support framework 3. Two groups of symmetrically arranged columns 8 are fixedly connected to the upper side of the installation plate 7. The first construction platform 10, the second construction platform 11 and the third construction platform 12 are fixedly connected to the outside of the column 8 in sequence from bottom to top. Connectors 13 are fixedly connected to the outside of the second construction platform 11 and the third construction platform 12. A baffle 14 is rotatably connected to the outside of the connector 13. An installation groove 15 is opened on the outside of the baffle 14. A telescopic plate 16 is slidably connected to the inside of the installation groove 15. A spring 17 is fixedly connected to the inside of the installation groove 15, and the spring 17 is fixedly connected to one side of the telescopic plate 16. Installation cylinders 18 are fixedly connected to the upper sides of the second construction platform 11 and the third construction platform 12. A driving motor 19 is fixedly connected to the outside of the installation cylinder 18. A rotating shaft 20 is fixedly connected to one side of the driving motor 19. A steel rope 21 is wound around the outside of the rotating shaft 20, and the end of the steel rope 21 is fixedly connected to the outside of the baffle 14.

[0023] A main gantry cross beam 2 is fixedly connected to the upper side of the lower longitudinal beam 1 of the main gantry. A framework connecting beam 4 is hinged between the main gantry cross beam 2 and the first construction platform 10. The lower longitudinal beam 1 of the main gantry can achieve the effects of support and movement.

[0024] A top construction frame 6 is fixedly connected to the upper side of the main gantry crossbeam 2, and the top of the tunnel can be constructed through the top construction frame 6.

[0025] A ladder 9 is fixedly connected to the outside of the column 8, which facilitates construction workers to enter the first construction platform 10, the second construction platform 11, and the third construction platform 12.

[0026] The first construction platform 10, the second construction platform 11, and the third construction platform 12 are arranged at equal intervals in the vertical direction, and the lengths of the first construction platform 10, the second construction platform 11, and the third construction platform 12 decrease from bottom to top. The ends of the first construction platform 10, the second construction platform 11, and the third construction platform 12 are all close to the tunnel surface 5.

[0027] The telescopic plate 16 outside the baffle 14 installed on the second construction platform 11 can be abutted against the tunnel surface 5 and the upper surface of the first construction platform 10. The telescopic plate 16 outside the baffle 14 installed on the third construction platform 12 can be abutted against the tunnel surface 5 and the upper surface of the installation cylinder 18 installed on the second construction platform 11.

[0028] Based on the working principle of a kind of anti-falling block trolley in the embodiment, when this device is in use, if the staff does not need to construct on the construction platform, through the upper construction platform, such as the rotatable baffles 14 installed outside the second construction platform 11 and the third construction platform 12, releasing them freely can make the ends abut against the edge of the first construction platform 10 or above the installation cylinder 18 installed on the second construction platform 11, thus effectively avoiding the damage to the tunnel construction equipment caused by the falling soil blocks or stones in the tunnel. When the construction workers need to construct on the lower construction platform, such as on the first construction platform 10 and the second construction platform 11, the driving motor 19 can be operated, so that the rotating shaft 20 rotates, thereby winding the steel rope 21, making the baffle 14 rotate around the connecting piece 13 until the telescopic plate 16 at the end of the baffle 14 abuts against the tunnel surface 5, thus blocking the top of the construction workers' heads and avoiding the damage to the construction workers caused by the falling soil blocks or stones in the tunnel. And through the telescopic telescopic plate 16 and the elastic force provided by the spring 17 when the telescopic plate 16 shrinks into the end of the baffle 14, the end of the telescopic plate 16 can be strongly abutted against the tunnel surface 5 until a part of the telescopic plate 16 shrinks into the installation groove 15, so as to avoid the falling of soil blocks or stones through the edge of the telescopic plate 16, further ensuring the safety of the construction workers.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A block-dropping prevention trolley, characterized in that: The invention comprises a main portal lower longitudinal beam (1), a support frame (3) and a tunnel surface (5); a mounting plate (7) is fixedly connected to the inner side of the support frame (3), and the mounting plate (7) is located at the lower part of the support frame (3); two groups of symmetrically arranged columns (8) are fixedly connected to the upper side of the mounting plate (7); a first construction platform (10), a second construction platform (11) and a third construction platform (12) are fixedly connected to the outside of the columns (8) in order from bottom to top; a connecting piece (13) is fixedly connected to the outside of the second construction platform (11) and the third construction platform (12); a baffle (14) is rotatably connected to the outside of the connecting piece (13); and the baffle (14) is fixedly connected to the outside of the baffle (14). ) is provided with an installation groove (15) on the outside, a telescopic plate (16) is slidably connected to the inner side of the installation groove (15), a spring (17) is fixedly connected to the inside of the installation groove (15), and the spring (17) is fixedly connected to one side of the telescopic plate (16), the upper side of the No. 2 construction platform (11) and the No. 3 construction platform (12) is fixedly connected to an installation cylinder (18), the outside of the installation cylinder (18) is fixedly connected to a driving motor (19), one side of the driving motor (19) is fixedly connected to a rotating shaft (20), the outside of the rotating shaft (20) is wound with a steel rope (21), and the end of the steel rope (21) is fixedly connected to the outside of the baffle (14).

2. The anti-block-dropping trolley according to claim 1, characterized in that: The upper side of the main portal lower longitudinal beam (1) is fixedly connected to a main portal cross beam (2), and a skeleton connecting beam (4) is hingedly connected between the main portal cross beam (2) and the No. 1 construction platform (10).

3. The anti-block-dropping trolley according to claim 2, characterized in that: A top construction frame (6) is fixedly connected to the upper side of the main portal crossbeam (2).

4. The anti-block-dropping trolley according to claim 1, characterized in that: A ladder (9) is fixedly connected to the outside of the upright column (8).

5. The anti-block-dropping trolley according to claim 1, characterized in that: The first construction platform (10), the second construction platform (11) and the third construction platform (12) are arranged at equal intervals in the vertical direction, and the lengths of the first construction platform (10), the second construction platform (11) and the third construction platform (12) decrease from bottom to top, and the ends of the first construction platform (10), the second construction platform (11) and the third construction platform (12) are all close to the tunnel surface (5).

6. The anti-block-dropping trolley according to claim 1, characterized in that: The telescopic plate (16) outside the baffle plate (14) installed on the second construction platform (11) can abut against the tunnel surface (5) and the upper surface of the first construction platform (10).

7. The anti-block-dropping trolley according to claim 1, characterized in that: The telescopic plate (16) outside the baffle (14) installed on the third construction platform (12) can abut against the tunnel surface (5) and the upper surface of the installation cylinder (18) installed on the second construction platform (11).

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