Scraper for assisting in controlling flatness of tunnel primary support

Abstract

The utility model discloses a scraper for assisting in controlling the flatness of a primary support of a tunnel, which is characterized by comprising a mounting rod, the connecting plate is connected to one end of the mounting rod and connects the mounting rod with a movable arm of external equipment; the scraping plate is movably connected to the other end of the mounting rod; and the movable mechanism is arranged on the mounting rod and connected with the scraper blade, and the movable mechanism controls the scraper blade to rotate around the end of the mounting rod so that the scraper blade can be attached to the initial supporting faces of different angles. The scraper has the advantages that the angle of the scraper can be changed, and the included angle between the surface of the scraper and the horizontal plane can be adjusted through the mutual matching of the screw rod and the nut, so that the scraper can be better attached to primary supporting surfaces with different angles. The scraper can be mounted on a movable arm of a construction machine, is simple in structure and convenient to operate, and effectively improves the leveling working efficiency of a primary supporting surface in a tunnel.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction tools, and particularly relates to a scraper for assisting in controlling the flatness of the primary support of a tunnel. Background Art

[0002] In tunnel construction, the flatness of the sprayed concrete of the primary support of the tunnel represents whether the surface of the sprayed concrete is flat and smooth and meets the specification requirements, which directly affects the construction quality of subsequent processes and is an important indicator to ensure the service life of the tunnel. The flatness of the primary support is greatly affected by factors such as the technical ability of construction personnel and the thickness of the concrete, and is a key project for quality control in the construction of the primary support of the tunnel. Content of the Utility Model

[0003] The purpose of the utility model is to provide a scraper for assisting in controlling the flatness of the primary support of a tunnel according to the deficiencies of the above-mentioned prior art, and to adapt to the primary support surfaces at different angles in the tunnel through a scraper with an adjustable angle.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A scraper for assisting in controlling the flatness of the primary support of a tunnel, which includes:

[0006] A mounting rod;

[0007] A connecting plate, which is connected to one end of the mounting rod and connects the mounting rod to the movable arm of an external device;

[0008] A scraping plate, which is movably connected to the other end of the mounting rod;

[0009] A moving mechanism, which is arranged on the mounting rod and connected to the scraping plate, wherein

[0010] The moving mechanism makes the scraping plate fit the primary support surfaces at different angles by controlling the scraping plate to rotate around the end of the mounting rod.

[0011] Optionally, a first connecting rod and a second connecting rod are sequentially connected between the scraping plate and the moving mechanism. The first connecting rod is fixedly connected to the scraping plate, the second connecting rod is movably connected to the moving mechanism, and the first connecting rod and the second connecting rod are rotatably connected by a first pin shaft.

[0012] Optionally, a diagonal brace rod for increasing strength is arranged between the first connecting rod and the scraping plate.

[0013] Optionally, a connecting piece is provided at one end of the mounting rod where the scraping plate is installed. The connecting piece has a pair of ear plates, and the ear plates are provided with mounting holes. The first connecting rod is rotatably connected to the connecting piece by a second pin shaft passing through the mounting holes.

[0014] Optionally, the movable mechanism includes a screw rod with both ends fixed to the mounting rod, and the screw rod is connected to an external motor power supply.

[0015] Optionally, a nut is provided at the other end of the second connecting rod relative to the end connected to the first connecting rod, the nut is connected to the screw rod, and the screw rod controls the nut to move back and forth in its length direction during rotation.

[0016] Optionally, bearing seats are respectively provided at both ends of the screw rod, and the bearing seats are fixed to the mounting rod.

[0017] Optionally, when the nut moves away from or towards the connecting plate, the angle between the scraping plate and the horizontal plane gradually decreases.

[0018] Optionally, the connecting plate is welded to the mounting rod.

[0019] The advantages of the present utility model are as follows:

[0020] The scraping knife of the present utility model can achieve angle changes, and the angle between the scraping plate surface and the horizontal plane is adjusted through the mutual cooperation of the screw rod and the nut, so as to better fit the primary support surface at different angles. The scraping knife can be installed on the movable arm of the construction machinery. The scraping knife of the present utility model has a simple structure and convenient operation, and effectively improves the leveling work efficiency of the primary support surface in the tunnel. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the scraping knife for assisting in controlling the flatness of the primary support of the tunnel of the present utility model. Detailed Embodiments

[0022] Each mark in the figure is respectively: 1, mounting rod; 2, connecting plate; 3, scraping plate; 4, movable mechanism; 5, first connecting rod; 6, second connecting rod; 7, diagonal brace; 8, connecting piece; 9, first pin shaft; 41, screw rod; 42, bearing seat; 81, ear plate; 82, second pin shaft.

[0023] Embodiment: Please refer to Figure 1 As shown, a scraping knife for assisting in controlling the flatness of the primary support of the tunnel in an embodiment is shown, which includes a mounting rod 1; a connecting plate 2 connected to one end of the mounting rod 1 and connecting the mounting rod 1 to the movable arm of an external device; a scraping plate 3 movably connected to the other end of the mounting rod 1; and a movable mechanism 4 provided on the mounting rod 1 and connected to the scraping plate 3, wherein the movable mechanism 4 makes the scraping plate 3 fit the primary support surface at different angles by controlling the scraping plate 3 to rotate around the end of the mounting rod 1.

[0024] In this embodiment, a first connecting rod 5 and a second connecting rod 6 are sequentially connected between the scraping plate 3 and the movable mechanism 4. The first connecting rod 5 is fixedly connected to the scraping plate 3, the second connecting rod 6 is movably connected to the movable mechanism 4, and the first connecting rod 5 and the second connecting rod 6 are rotatably connected through a first pin shaft 9.

[0025] In this embodiment, a diagonal brace 7 for increasing strength is provided between the first connecting rod 5 and the scraping plate 3.

[0026] In this embodiment, a connecting member 8 is provided at one end of the mounting rod 1 where the scraping plate 3 is mounted. The connecting member 8 has a pair of ear plates 81, and the ear plates 81 are provided with mounting holes. The first connecting rod 5 is rotatably connected to the connecting member 8 by passing a second pin shaft 82 through the mounting holes.

[0027] In this embodiment, the movable mechanism 4 includes a screw rod 41 fixed at both ends to the mounting rod 1, and the screw rod 41 is connected to an external motor power supply.

[0028] In this embodiment, a nut 61 is provided at the other end of the second connecting rod 6 relative to the end connected to the first connecting rod 5. The nut 61 is connected to the screw rod 41, and the screw rod 41 controls the nut 61 to move back and forth in its length direction during rotation.

[0029] In this embodiment, bearing seats 42 are respectively provided at both ends of the screw rod 41, and the bearing seats 42 are fixed to the mounting rod 1.

[0030] In this embodiment, when the nut 61 moves away from or towards the connecting plate 2, the angle between the scraping plate 3 and the horizontal plane gradually decreases.

[0031] In this embodiment, the connecting plate 2 is welded to the mounting rod 1.

[0032] The characteristics and functions of the present utility model are further understood through the following description.

[0033] The scraping knife 3 in this embodiment can be adjusted in angle to adapt to the primary support surfaces with different radian. The structure is simple and the operation is convenient, which can effectively improve the flatness of the primary support sprayed concrete in the tunnel and the scraping efficiency.

[0034] To achieve the above beneficial effects, the scraping knife device in this embodiment mainly includes a mounting rod 1, a scraping plate 3 and a movable mechanism 4. The movable mechanism 4 includes a screw rod 41. A first connecting rod 5 and a second connecting rod 6 are sequentially connected between the scraping plate 3 and the mounting rod 1. The first connecting rod 5 is fixedly connected to the scraping plate 3 and rotatably connected to the second connecting rod 6. The second connecting rod 6 is slidably and rotatably connected to the screw rod 41 through a mounting nut 61. Therefore, when the nut 61 moves back and forth along the length direction of the screw rod 41, through the linkage of the second connecting rod 6, the first connecting rod 5 and the connecting member 8, the angle between the plane where the scraping plate 3 is located and the horizontal plane can be changed to adapt to the primary support surfaces with different radian.

[0035] Both ends of the screw rod 41 are rotatably installed with bearing seats 42. The bearing seats 42 are installed on the installation rod 1. The screw rod 41 can also be connected to a power source such as an external motor through an electric wire to control the rotation of the screw rod 41. The screw rod 41 and the nut 61 are combined into a lead screw structure, so the nut 61 can move along the length direction of the screw rod 41.

[0036] The connecting member 8 has an ear plate 81. The first connecting rod 5 is connected to the ear plate 81 through the second pin shaft 82. Therefore, the first connecting rod 5 can rotate around the connecting member 8. When the nut 61 drives the second connecting rod 6 to move, the second connecting rod 6 drives the first connecting rod 5 to move, and the first connecting rod 5 can drive the scraper 3 connected thereto to perform an angular flipping change until a preset angle is reached.

[0037] The diagonal brace 7 is used to strengthen the connection strength between the scraper 3 and the first connecting rod 5, so that the scraper 3 will not break or have other problems during operation.

[0038] The connecting plate 2 has a plurality of connecting holes and can be connected to the robotic arm of an external device. That is, the robotic arm can drive the scraper 3 to work, and the robotic arm itself can also adjust the angle. Therefore, the angle of the scraper 3 can be made more accurate and the angle range can be wider.

[0039] In summary, the scraper of the present utility model can achieve angular changes, and the included angle between the scraper plate surface and the horizontal plane is adjusted through the mutual cooperation of the screw rod and the nut, so as to better fit the primary support surface at different angles. The scraper can be installed on the movable arm of a construction machine. The scraper structure of the present utility model is simple and easy to operate, effectively improving the leveling work efficiency of the primary support surface in the tunnel.

[0040] The above is only a preferred embodiment of the present utility model, and does not limit the implementation manner and protection scope of the present utility model. For those skilled in the art, it should be realized that any equivalent replacement and obvious changes made by using the description and illustration content of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A scraper for assisting in controlling the initial flatness of a tunnel, characterized in that: include: Mounting rod; a connecting plate connected to one end of the mounting rod and connecting the mounting rod to a movable arm of an external device; a scraper, movably connected to the other end of the mounting rod; A movable mechanism is arranged on the mounting rod and connected to the scraper, wherein The movable mechanism controls the scraper to rotate around the end of the mounting rod so that the scraper fits the initial support surface with different angles.

2. The scraper for assisting in controlling the initial flatness of a tunnel according to claim 1, characterized in that: A first connecting rod and a second connecting rod are connected between the scraper and the movable mechanism in sequence. The first connecting rod is fixedly connected to the scraper, and the second connecting rod is movably connected to the movable mechanism. The first connecting rod and the second connecting rod are rotatably connected via a first pin shaft.

3. The scraper for assisting in controlling the initial flatness of a tunnel according to claim 2, characterized in that: An oblique support rod for increasing strength is arranged between the first connecting rod and the scraper.

4. The scraper for assisting in controlling the initial flatness of a tunnel according to claim 3 is characterized in that: A connecting piece is provided at one end of the mounting rod and the scraper, wherein the connecting piece has a pair of ear plates, and the ear plates are provided with mounting holes. The first connecting rod is rotatably connected to the connecting piece by passing through the mounting holes via a second pin shaft.

5. The scraper for assisting in controlling the initial flatness of a tunnel according to claim 4 is characterized in that: The movable mechanism comprises a screw rod with two ends fixed to the mounting rod, and the screw rod is connected to an external motor power supply.

6. The scraper for assisting in controlling the initial flatness of a tunnel according to claim 5, characterized in that: The other end of the second connecting rod connected to the first connecting rod is provided with a nut, and the nut is connected to the screw rod. The screw rod controls the nut to move back and forth in the length direction thereof during rotation.

7. The scraper for assisting in controlling the initial flatness of a tunnel according to claim 6, characterized in that: Bearing seats are respectively arranged at both ends of the screw rod, and the bearing seats are fixed to the mounting rod.

8. The scraper for assisting in controlling the initial flatness of a tunnel according to claim 7, characterized in that: When the nut moves in a direction away from or close to the connecting plate, the angle between the scraper and the horizontal plane gradually decreases.

9. The scraper for assisting in controlling the initial flatness of a tunnel according to claim 8, characterized in that: The connecting plate is welded to the mounting rod.

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