Tunnel construction rack

Abstract

The utility model discloses a tunnel construction rack, which belongs to the technical field of tunnel construction and comprises a bottom plate, a plurality of first electric hydraulic rods are fixedly mounted on the top surface of the bottom plate, the top ends of the first electric hydraulic rods are fixedly connected with a main fence frame, and U-shaped sliding grooves are respectively formed in two sides of the main fence frame. A mounting groove is formed in the bottom face of the main fence frame, and a double-shaft motor is fixedly mounted in an inner cavity of the mounting groove. The U-shaped sliding grooves are formed in the two ends of the main fence frame respectively, the auxiliary U-shaped frames are arranged in the U-shaped sliding grooves in a sleeved mode, the two auxiliary U-shaped frames are driven to move synchronously through screw-thread fit between the threaded rods and the auxiliary U-shaped frames, so that the size of the overall internal space of the main fence frame and the auxiliary U-shaped frames is changed, the outer sides of the main fence frame and the auxiliary U-shaped frames are closed, and the outer sides of the main fence frame and the auxiliary U-shaped frames are closed. And the safety of constructors can be guaranteed, and the practicability of the tunnel construction rack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, and more specifically to a tunnel construction stand. Background Art

[0002] A tunnel is an engineering structure buried in the ground. During tunnel construction, a construction platform is often required to assist the construction due to the high top of the tunnel.

[0003] After searching, the utility model patent with announcement number CN218716803U discloses a multifunctional tunnel construction platform, including a base, a bracket fixedly connected to the top of the base, a top plate fixedly connected to the top of the bracket, a guardrail fixedly connected to the top of the top plate, an extension mechanism fixedly connected to the bottom of the top plate, and an auxiliary mechanism fixedly connected to the top of the extension mechanism; the multifunctional tunnel construction platform, by setting an extension mechanism, can make the first L-shaped bar and the second L-shaped bar move away from each other under the action of a motor, a driving gear, a driven gear and a threaded rod, so that the first L-shaped plate and the second L-shaped plate move away from each other, adjust the space on the top of the construction platform, facilitate the placement of construction tools, increase the operating space of construction personnel, facilitate construction, improve construction efficiency, and facilitate the placement of construction tools or the standing of construction personnel under the action of the first movable bar and the second movable bar.

[0004] However, the above patent has the following shortcomings: when the extension mechanism extends to both sides, the two sides of the second L-shaped plate are not protected, which affects the safety of the workers on the platform; in addition, after the second L-shaped plate is extended, its lower part is in a suspended state, which is not convenient for ensuring the overall stability of the construction platform. For this reason, we propose a tunnel construction platform. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a tunnel construction platform.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A tunnel construction platform comprises a base plate, a plurality of first electric hydraulic rods are fixedly installed on the top surface of the base plate, the top ends of the plurality of first electric hydraulic rods are fixedly connected to a main fence frame, U-shaped slide grooves are respectively provided on both sides of the main fence frame, a mounting groove is provided on the bottom surface of the main fence frame, a dual-axis motor is fixedly installed in the inner cavity of the mounting groove, two output shafts of the dual-axis motor respectively extend to the inner cavities of two U-shaped slide grooves and are fixedly connected with threaded rods, auxiliary U-shaped frames are movably sleeved in the inner cavities of the two U-shaped slide grooves, the ends of the two auxiliary U-shaped frames respectively extend to the two ends of the main fence frame, the threaded rods are threadedly sleeved into the interior of the auxiliary U-shaped frames, auxiliary support mechanisms are respectively provided at the bottoms of the two auxiliary U-shaped frames, a driving mechanism is provided in the middle of the base plate, and a plurality of first swivel casters are fixedly installed on the bottom surface of the base plate.

[0008] As a preferred solution of the utility model, the auxiliary support mechanism includes two second electric hydraulic rods fixedly connected to the bottom surface of the auxiliary U-shaped frame, the bottom ends of the two second electric hydraulic rods are fixedly installed with support seats, and the bottom surface of the support seat is fixedly installed with two second swivel casters.

[0009] As a preferred solution of the utility model, the driving mechanism includes an installation box fixedly sleeved on the middle part of the base plate, the installation box is provided with an installation chamber inside, the inner cavity of the installation chamber is fixedly installed with a first servo motor, the output shaft of the first servo motor extends to the bottom of the installation box and is fixedly connected to a turntable, the bottom surface of the turntable is fixedly connected with a U-shaped seat, the U-shaped seat is rotatably connected to a driving wheel, a second servo motor is fixedly installed on the outer side of the U-shaped seat, the output shaft of the second servo motor is connected to one end of the driving wheel shaft, two electric push rods are fixedly installed on the bottom surface of the turntable, the bottom ends of the two electric push rods are fixedly connected with brake pads, and the bottom end of the driving wheel is flush with the bottom ends of the second swivel caster and the first swivel caster.

[0010] As a preferred solution of the utility model, sliding holes are respectively opened at both ends of the base plate, and the end surface of the support seat is fixedly connected with a sliding rod, the end of the sliding rod is movably sleeved into the inner cavity of the sliding hole, and the outer diameter of the sliding rod is equal to the inner diameter of the sliding hole.

[0011] As a preferred solution of the present invention, a control panel is fixedly mounted on the inner wall of the main fence frame.

[0012] As a preferred solution of the utility model, the inner wall of the U-shaped slide groove fits with the side of the auxiliary U-shaped frame, and a platform door is hinged on the outer side of one of the auxiliary U-shaped frames.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the utility model, U-shaped slide grooves are respectively provided at both ends of the main fence frame, and auxiliary U-shaped frames are sleeved in the U-shaped slide grooves. The two auxiliary U-shaped frames are driven to move synchronously through the threaded cooperation between the threaded rod and the auxiliary U-shaped frame, so as to change the size of the overall internal space of the main fence frame and the auxiliary U-shaped frame. In addition, the outer sides of the main fence frame and the auxiliary U-shaped frame are both closed, which can ensure the safety of construction workers.

[0015] (2) In the present invention, by using the second electric hydraulic rod, the support seat and the second swivel caster in coordination, when the two auxiliary U-shaped frames move, the auxiliary U-shaped frame drives the second electric hydraulic rod, the support seat and the second swivel caster to move synchronously, so that the second electric hydraulic rod, the support seat and the second swivel caster always support the auxiliary U-shaped frame, thereby ensuring the stability and support strength of the auxiliary U-shaped frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the main fence frame of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the driving mechanism of the utility model.

[0020] Explanation of the numbers in the figure: 1. Base plate; 2. First electric hydraulic rod; 3. Main fence frame; 4. Mounting groove; 5. U-shaped slide groove; 6. Auxiliary U-shaped frame; 7. Double-axis motor; 8. Threaded rod; 9. Driving mechanism; 10. Auxiliary supporting mechanism; 11. First swivel caster; 12. Second electric hydraulic rod; 13. Support seat; 14. Second swivel caster; 15. Sliding hole; 16. Sliding rod; 17. Stand door; 18. Control panel; 19. Installation box; 20. Installation room; 21. First servo motor; 22. Turntable; 23. U-shaped seat; 24. Driving wheel; 25. Second servo motor; 26. Electric push rod; 27. Brake pad. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Example:

[0025] See also Figure 1-4 A tunnel construction platform comprises a base plate 1, a plurality of first electric hydraulic rods 2 are fixedly installed on the top surface of the base plate 1, a main fence frame 3 is fixedly connected to the top ends of the plurality of first electric hydraulic rods 2, U-shaped slide grooves 5 are respectively opened on both sides of the main fence frame 3, and a mounting groove 4 is opened on the bottom surface of the main fence frame 3, a dual-axis motor 7 is fixedly installed in the inner cavity of the mounting groove 4, and two output shafts of the dual-axis motor 7 extend to the inner cavities of the two U-shaped slide grooves 5 respectively and are fixedly connected with threaded rods 8, auxiliary U-shaped frames 6 are movably sleeved in the inner cavities of the two U-shaped slide grooves 5, and the ends of the two auxiliary U-shaped frames 6 extend to the two ends of the main fence frame 3 respectively, and the threaded rods 8 are threadedly sleeved into the inside of the auxiliary U-shaped frames 6, and auxiliary support mechanisms 10 are respectively arranged at the bottoms of the two auxiliary U-shaped frames 6, a driving mechanism 9 is arranged in the middle of the base plate 1, and a plurality of first rotating casters 11 are fixedly installed on the bottom surface of the base plate 1.

[0026] In this embodiment, a storage battery is preset on the rack to provide power, which is the prior art.

[0027] For details, please refer to Figure 1 The auxiliary support mechanism 10 includes two second electric hydraulic rods 12 fixedly connected to the bottom surface of the auxiliary U-shaped frame 6, and the bottom ends of the two second electric hydraulic rods 12 are fixedly installed with a support seat 13, and the bottom surface of the support seat 13 is fixedly installed with two second swivel casters 14.

[0028] In this embodiment, the auxiliary U-shaped frame 6 is supported by the second swivel caster 14, the support seat 13 and the second electric hydraulic rod 12. In addition, the first electric hydraulic rod 2 and the second electric hydraulic rod 12 are raised and lowered synchronously, thereby ensuring that the main fence frame 3 and the auxiliary U-shaped frame 6 are raised and lowered synchronously.

[0029] For details, please refer to Figure 1 and Figure 4 The driving mechanism 9 includes an installation box 19 fixedly sleeved on the middle part of the base plate 1, and an installation chamber 20 is arranged inside the installation box 19. A first servo motor 21 is fixedly installed in the inner cavity of the installation chamber 20. The output shaft of the first servo motor 21 extends to the bottom of the installation box 19 and is fixedly connected to a turntable 22. A U-shaped seat 23 is fixedly connected to the bottom surface of the turntable 22. A driving wheel 24 is rotatably connected to the U-shaped seat 23. A second servo motor 25 is fixedly installed on the outer side of the U-shaped seat 23. The output shaft of the second servo motor 25 is connected to one end of the rotating shaft of the driving wheel 24. Two electric push rods 26 are fixedly installed on the bottom surface of the turntable 22. The bottom ends of the two electric push rods 26 are fixedly connected to brake pads 27. The bottom end of the driving wheel 24 is flush with the bottom ends of the second swivel caster 14 and the first swivel caster 11.

[0030] In this embodiment, the entire construction platform is driven to move by the rotation of the driving wheel 24, and the angle of the driving wheel 24 is adjusted by the first servo motor 21 so that the entire construction platform can move in different directions. The second rotating caster 14 and the first rotating caster 11 can rotate horizontally, thereby ensuring the smooth driving of the driving wheel 24.

[0031] For details, please refer to Figure 2 and Figure 3 Sliding holes 15 are respectively provided at both ends of the bottom plate 1, and a sliding rod 16 is fixedly connected to the end surface of the support seat 13. The end of the sliding rod 16 is movably sleeved into the inner cavity of the sliding hole 15, and the outer diameter of the sliding rod 16 is equal to the inner diameter of the sliding hole 15.

[0032] In this embodiment, the bottom plate 1 and the support seat 13 are limited by the cooperation between the sliding hole 15 and the sliding rod 16 to avoid misalignment between the bottom plate 1 and the support seat 13.

[0033] For details, please refer to Figure 2 A control panel 18 is fixedly mounted on the inner wall of the main fence frame 3.

[0034] In this embodiment, the control panel 18 is electrically connected to the dual-axis motor 7, the first electric hydraulic rod 2, the second electric hydraulic rod 12, the first servo motor 21, the electric push rod 26 and the second servo motor 25, respectively, and the control panel 18 is used to control the dual-axis motor 7, the first electric hydraulic rod 2, the second electric hydraulic rod 12, the first servo motor 21, the electric push rod 26 and the second servo motor 25.

[0035] For details, please refer to Figures 1 to 3 The inner wall of the U-shaped chute 5 fits the side of the auxiliary U-shaped frame 6, and a rack door 17 is hinged on the outer side of the auxiliary U-shaped frame 6.

[0036] In this embodiment, the inner wall of the U-shaped slide groove 5 is used to limit the auxiliary U-shaped frame 6, so that the auxiliary U-shaped frame 6 can only move along the axial direction of the threaded rod 8. In addition, the stability of the auxiliary U-shaped frame 6 at both ends of the main fence frame 3 is ensured, and the staff can enter the main fence frame 3 by opening the platform door 17.

[0037] Working principle: When in use, first use the first electric hydraulic rod 2 and the second electric hydraulic rod 12 to synchronously lower the main fence frame 3 and the auxiliary U-shaped frame 6 to a low position, open the platform door 17 to allow the staff to enter the main fence frame 3, and then start the first electric hydraulic rod 2 and the second electric hydraulic rod 12 to drive the main fence frame 3 and the auxiliary U-shaped frame 6 to rise to a high position for operation, and use the main fence frame 3 and the auxiliary U-shaped frame 6 with closed sides to protect and support the staff. In addition, the dual-axis motor 7 can be started to drive the threaded rod 8 to rotate, and the threaded cooperation between the threaded rod 8 and the auxiliary U-shaped frame 6 can be used to drive the two auxiliary U-shaped frames 6 to telescope or extend at both ends of the main fence frame 3, thereby changing the platform The overall size of the frame, during the movement of the auxiliary U-shaped frame 6, the second electric hydraulic rod 12, the support seat 13 and the second rotating caster 14 are driven to move synchronously, and the auxiliary U-shaped frame 6 is stably supported by the second electric hydraulic rod 12, the support seat 13 and the second rotating caster 14. Finally, when the frame needs to be moved, the first servo motor 21 is started to drive the turntable 22, the U-shaped seat 23 and the driving wheel 24 to rotate horizontally, so that the end of the driving wheel 24 is aligned with the required direction of movement, and the second servo motor 25 is used to drive the driving wheel 24 to rotate, and the rotation of the driving wheel 24 is used to drive the installation box 19 and the base plate 1 to move, thereby driving the entire frame to move.

[0038] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A tunnel construction stand, comprising a bottom plate (1), characterized in that: A plurality of first electric hydraulic rods (2) are fixedly mounted on the top surface of the bottom plate (1), and the top ends of the plurality of first electric hydraulic rods (2) are fixedly connected to a main fence frame (3), and U-shaped slide grooves (5) are respectively provided on both sides of the main fence frame (3), and a mounting groove (4) is provided on the bottom surface of the main fence frame (3), and a dual-axis motor (7) is fixedly mounted in the inner cavity of the mounting groove (4), and two output shafts of the dual-axis motor (7) respectively extend to the inner cavities of the two U-shaped slide grooves (5) and are fixedly connected to the screws. The threaded rod (8) is provided with an auxiliary U-shaped frame (6) in the inner cavities of the two U-shaped slide grooves (5), and the ends of the two auxiliary U-shaped frames (6) extend to the two ends of the main fence frame (3). The threaded rod (8) is threadedly connected to the inside of the auxiliary U-shaped frame (6), and the bottoms of the two auxiliary U-shaped frames (6) are respectively provided with auxiliary supporting mechanisms (10). The middle part of the base plate (1) is provided with a driving mechanism (9), and the bottom surface of the base plate (1) is fixedly installed with a plurality of first rotating casters (11).

2. A tunnel construction stand according to claim 1, characterized in that: The auxiliary support mechanism (10) comprises two second electric hydraulic rods (12) fixedly connected to the bottom surface of the auxiliary U-shaped frame (6), the bottom ends of the two second electric hydraulic rods (12) are fixedly mounted with support seats (13), and the bottom surface of the support seat (13) is fixedly mounted with two second swivel casters (14).

3. A tunnel construction stand according to claim 2, characterized in that: The driving mechanism (9) comprises an installation box (19) fixedly sleeved on the middle part of the bottom plate (1), the installation box (19) is provided with an installation chamber (20) inside, a first servo motor (21) is fixedly installed in the inner cavity of the installation chamber (20), the output shaft of the first servo motor (21) extends to the bottom of the installation box (19) and is fixedly connected to a turntable (22), the bottom surface of the turntable (22) is fixedly connected to a U-shaped seat (23), and the U-shaped seat (23) is rotatably connected to a driving mechanism (9). A second servo motor (25) is fixedly mounted on the outer side of the U-shaped seat (23), the output shaft of the second servo motor (25) is connected to one end of the rotating shaft of the driving wheel (24), two electric push rods (26) are fixedly mounted on the bottom surface of the turntable (22), the bottom ends of the two electric push rods (26) are fixedly connected to brake pads (27), and the bottom end of the driving wheel (24) is flush with the bottom ends of the second rotating caster (14) and the first rotating caster (11).

4. A tunnel construction stand according to claim 2, characterized in that: Sliding holes (15) are respectively provided at both ends of the bottom plate (1), and a sliding rod (16) is fixedly connected to the end surface of the support seat (13). The end of the sliding rod (16) is movably sleeved into the inner cavity of the sliding hole (15), and the outer diameter of the sliding rod (16) is equal to the inner diameter of the sliding hole (15).

5. The tunnel construction stand according to claim 1, characterized in that: A control panel (18) is fixedly mounted on the inner wall of the main fence frame (3).

6. A tunnel construction stand according to claim 1, characterized in that: The inner wall of the U-shaped slide groove (5) is in contact with the side surface of the auxiliary U-shaped frame (6), and a platform door (17) is hingedly connected to the outer side of the auxiliary U-shaped frame (6).

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