An operating platform for tunnel top maintenance

Abstract

The present invention discloses an operating platform for tunnel top maintenance, which relates to the technical field of engineering construction equipment. The operating platform for tunnel top maintenance comprises a base and a working platform, wherein a first sliding support and a first fixed support are arranged on the base, a telescopic connecting rod is rotatably connected to the first sliding support and the first fixed support, an upper end of the telescopic connecting rod is rotatably connected to a second fixed support and a second sliding support, an upper end of the second fixed support is fixedly connected to the working platform, support rods are arranged at four corners of the working platform, which are closely attached to the tunnel top, wheels at the lower end of the base are controlled to retract by a scissor jack, so that four bottom feet of the base are in contact with and close to the ground, thereby ensuring that the operating platform is fixed up and down, improving the stability of the operating platform, improving the work efficiency, and at the same time avoiding the operating platform from tipping over, thereby improving the safety of construction.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering construction equipment, and in particular relates to an operating platform for tunnel top maintenance. Background Art

[0002] Tunnels are common building structures in roads and railways. They are widely used because they can reduce the curvature and slope of roads, shorten the length of roads, and significantly reduce the construction period of roads. Since tunnels are built inside hills, it is difficult to repair the top of the tunnel. Aerial work platforms are usually used for maintenance. When repairing the top of the tunnel, there is no supporting surface around the tunnel. The existing aerial work platforms have poor stability and are prone to the risk of rollover. In addition, the swing of the workbench increases the difficulty of construction. Therefore, we propose an operating platform for tunnel top maintenance. Summary of the invention

[0003] In view of the deficiencies of the prior art, an object of the present invention is to provide an operating platform for tunnel top maintenance to solve the problems raised in the above background technology.

[0004] The purpose of the present invention can be achieved through the following technical solutions: an operating platform for tunnel top maintenance, including a base and a working platform, a fixed rod and a support rod are arranged on the working platform, the support rod is rotatably connected to the working platform, the rotation angle range of the support rod is 100-1500°, the upper end of the support rod fits the tunnel top when the support rod is horizontally vertical to the working platform, the support rod is provided with a support seat and a limit hole, the support seat is fixedly connected to the support rod. The fixed rod is slidably connected to the working platform.

[0005] As a further solution of the present invention, dot-shaped polyurethane blocks are arranged on the support seat.

[0006] As a further solution of the present invention, a slide groove and a limit column are provided on the fixed rod, the limit column is movably installed in the slide groove, and the limit column is slidably connected to the fixed rod.

[0007] As a further solution of the present invention, the right end of the limit column is movably connected to a spring.

[0008] As a further solution of the present invention, rotating plates are provided on both sides of the working platform, and the rotating plates are rotatably connected to the working platform.

[0009] As a further solution of the present invention, a second reel is provided on the working platform, the second reel is fixedly connected to the lead screw, the second reel is fixedly connected to the second pull rope, and the second pull rope is fixedly connected to the rotating plate.

[0010] As a further solution of the present invention, the support rod is provided with a pulley, the pulley is rotatably connected to the support rod, and the second pull rope is slidably connected to the support rod.

[0011] As a further solution of the present invention, plastic tubes are provided on the top and bottom of the working platform, and the second pull rope is installed in the plastic tube.

[0012] As a further solution of the present invention, a first motor is provided on the working platform, and the first motor is fixedly installed on the working platform. The output shaft of the first motor is fixedly connected to the first pulley, the first motor is connected to the rotating shaft through a belt, the second pulley is fixedly installed on the rotating shaft, the rotating shaft is fixedly connected to the first reel, a first pull rope is provided on the first reel, the lower end of the first pull rope is fixedly connected to the material rack, the material rack is slidably connected to the telescopic round rod, and the telescopic round rod is fixedly installed on the bottom surface of the working platform.

[0013] As a further solution of the present invention, a scissors jack and a fixed plate are arranged on the lower side of the base, the scissors jack is fixedly installed on the bottom surface of the base, the scissors jack is fixedly connected to the fixed plate, the fixed plate is slidably connected to the base, and four sets of wheels are arranged under the fixed plate.

[0014] As a further solution of the present invention, plastic tubes are provided on the top and bottom of the working platform, and the second pull rope is installed in the plastic tube.

[0015] Beneficial effects of the present invention:

[0016] 1. Support rods are set at the four corners of the working platform, which are close to the top of the tunnel. The wheels at the lower end of the base are controlled by a scissor jack to retract upward. The four feet of the base are in contact with and close to the ground, so that the operating platform is fixed up and down, which improves the stability of the operating platform and the work efficiency. At the same time, it can prevent the operating platform from tipping over and improve the safety of construction.

[0017] 2. A material transmission device is set on the working platform, which controls the up and down movement of the material rack by controlling the forward and reverse rotation of the first motor, thereby improving the material transmission efficiency and greatly improving the work efficiency.

[0018] 3. Retractable rotating plates are set on both sides of the working platform, which are pulled by the second pull rope to increase the area of ​​the operating platform and improve the convenience and work efficiency of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a left side view of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the support rod of the present invention;

[0023] Figure 4 is a schematic structural diagram of a fixing rod of the present invention;

[0024] Figure 5 is a cross-sectional view of a fixing rod of the present invention;

[0025] In the figure: base-1, wheel-2, material rack-3, first pull rope-4, telescopic round rod-5, first motor-6, rotating shaft-7, first reel-8, working platform-9, rotating plate-10, support rod-11, second pull rope-12, fixed rod-13, slide groove-131, limit column-14, pulley-15, support seat-16, dotted polyurethane block-161, limit hole-162, second motor-18, screw-19, second reel-20, scissor jack-21, crank handle-22, fixed plate-23, first sliding support-24, telescopic connecting rod-25, plastic tube-26, ball bearing-27, second fixed support-28, second sliding support-29, second pulley-31, spring-32, belt-33, first pulley-34, first fixed support-35, connecting plate-36. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figures 1 to 5In Example 1 of the present invention, an operating platform for tunnel top maintenance includes a base 1 and a first reel 8, a first sliding support 24 and a first fixed support 35 are provided on the base 1, the first sliding support 24 is slidably connected to the base 1, the first fixed support 35 is fixedly connected to the base 1, a telescopic link 25 is rotatably connected to the first sliding support 24 and the first fixed support 35, the upper end of the telescopic link 25 is rotatably connected to the second fixed support 28 and the second sliding support 29, the second fixed support 28 is fixedly connected to the working platform 9, the second sliding support 29 is slidably connected to the working platform 9, a first motor 6, a fixed rod 13 and a support rod 11 are provided on the working platform 9, the first motor 6 is fixedly installed on the working platform 9, and the first An output shaft of a motor 6 is fixedly connected to a first pulley 34, the first pulley 34 is connected to a belt 33, the belt 33 is connected to a second pulley 31, the second pulley 31 is fixedly connected to a rotating shaft 7, the rotating shaft 7 is rotatably connected to a working platform 9, the rotating shaft 7 is fixedly connected to a first reel 8, a first pull rope 4 is provided on the first reel 8, the lower end of the first pull rope 4 is fixedly connected to a material rack 3, a telescopic round rod 5 is provided on the material rack 3, the material rack 3 is slidably connected to the telescopic round rod 5, the telescopic round rod 5 is fixedly mounted on the bottom surface of the working platform 9, the support rod 11 is rotatably connected to the working platform 9, the fixed rod 13 is slidably connected to the working platform 9, rotating plates 10 are provided on both sides of the working platform 9, and the rotating plates 10 are rotatably connected to the working platform 9.

[0029] A second motor 18 is arranged on the base 1, and the second motor 18 is fixedly installed on the base 1. The output shaft of the second motor 18 is fixedly connected to a screw 19, and the screw 19 is rotatably connected to the base 1. A second reel 20 and a ball bearing 27 are arranged on the screw 19, and the ball bearing 27 is threadedly connected to a connecting plate 36, and the connecting plate 36 is fixedly connected to a first sliding bearing 24.

[0030] The support rod 11 is provided with a support seat 16, a pulley 15 and a limiting hole 162, the support seat 16 is fixedly connected to the support rod 11, a dot-shaped polyurethane block 161 is provided on the support seat 16, and the pulley 15 is rotatably connected to the support rod 11; during construction, the second motor 18 is started to rotate counterclockwise, driving the lead screw 19 to rotate counterclockwise, the ball bearing 27 moves to the left, the first sliding bearing 24 slides to the left, driving the telescopic connecting rod 25 to shrink to the middle, and the working platform 9 moves upward; the support rod 11 is rotated to fit with the pillars at the four corners of the working platform 9, that is, perpendicular to the working platform 9, a slide groove 131 and a limiting column 14 are provided on the fixed rod 13, and the limiting column 14 is movably mounted on the sliding The fixing rod 13 is moved upward to the position of the limiting hole 162 of the support rod 11, and the limiting column 14 is slidably connected to the fixing rod 13, and the right end of the limiting column 14 is movably connected to the spring 32; the fixing rod 13 is moved upward to the position of the limiting hole 162 of the support rod 11, and under the elastic force of the spring 32, the limiting column 14 is inserted into the limiting hole 162, and its main function is to fix the two adjacent support rods 11, thereby improving the stability of the support rod 11, and the working platform 9 moves upward, so that the support seat 16 is in close contact with the top of the tunnel. The support seat 16 is arranged in an arc shape, and a dot-shaped polyurethane block 161 is arranged on the top, which increases the friction between the support rod 11 and the top of the tunnel, improves the stability of the support rod 11, and can avoid the operating platform from tipping over, thereby improving safety.

[0031] The second reel 20 is fixedly connected to the lead screw 19, the second reel 20 is fixedly connected to the second pull rope 12, and the second pull rope 12 is fixedly connected to the rotating plate 10; the second motor 18 rotates counterclockwise, drives the lead screw 19 to rotate counterclockwise, the second reel 20 rotates counterclockwise and releases the second pull rope 12, so that the rotating plate 10 rotates clockwise and unfolds horizontally, and fits horizontally with the working platform 9, increasing the area of ​​the operating platform, making construction more convenient and quick, improving work efficiency, and also improving safe operability. The rotating plate 10 improves its firmness under the traction of the second pull rope 12. At the same time, after the construction is completed, when the motor is started to rotate clockwise, the second pull rope 12 is tightened under the clockwise rotation of the second reel 20, driving the rotating plate 10 to rotate counterclockwise and fit vertically with the working platform 9, which is convenient and quick to operate and reduces the volume of the platform.

[0032] Plastic tubes 26 are provided on the top and bottom of the working platform 9, and the second pull rope 12 is installed in the plastic tube 26, which reduces the wear of the second pull rope 12 and avoids interference between the second pull rope 12 and components.

[0033] Example 2

[0034] See also Figures 1 to 5In embodiment 2 of the present invention, an operating platform for tunnel top maintenance includes a base 1, a scissor jack 21 and a fixed plate 23 are arranged on the lower side of the base 1, the scissor jack 21 is fixedly installed on the bottom surface of the base 1, the scissor jack 21 is fixedly connected to the fixed plate 23, the fixed plate 23 is slidably connected to the base 1, and four sets of wheels 2 are arranged under the fixed plate 23; during construction, the crank handle 22 is turned counterclockwise, the scissor jack 21 shrinks toward the middle, the scissor jack 21 drives the fixed plate 23 to move upward, the fixed plate 23 drives the wheels 2 to move upward and leave the ground, the four bottom feet of the base 1 contact the ground, the contact area between the base 1 and the ground is increased, and the stability of the base 1 is improved; a material transmission device is arranged on the working platform 9, by controlling the first motor 6 to rotate forward and reverse, the first pull rope 4 is controlled to be unfolded and tightened through the first reel 8, so as to control the material rack 3 to slide up and down along the telescopic round rod 5, thereby improving the material transmission efficiency, thereby greatly improving the work efficiency.

[0035] The working principle of the present invention is as follows: the invention adjusts the height of the working platform 9 by controlling the extension of the telescopic connecting rod 25 through the use of the lead screw 19 for transmission. Support rods 11 are arranged at the four corners of the working platform 9, which are close to the top of the tunnel. The wheels 2 at the lower end of the base 1 are controlled to retract upward by the scissor jack 21. The four feet of the base 1 are in contact with and close to the ground, so that the operating platform is fixed up and down, which improves the stability of the operating platform, avoids the operating platform from tipping over, and improves the safety of construction. A material transmission device is arranged on the working platform 9, which controls the up and down movement of the material rack 3 by controlling the forward and reverse rotation of the first motor 6, thereby improving the material transmission efficiency, thereby greatly improving the work efficiency. Retractable rotating plates 10 are arranged on both sides of the working platform 9, which are pulled by the second pull rope 12, thereby increasing the area of ​​the operating platform and improving the convenience and work efficiency of construction.

[0036] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "bottom", "vertical", "horizontal", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed or operate in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0038] For those skilled in the art, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. Therefore, from any point of view, the embodiments should be regarded as instructive and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. It is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An operating platform for tunnel top maintenance, comprising a base (1) and a working platform (9), characterized in that: A fixing rod (13) and a support rod (11) are provided on the working platform (9); the support rod (11) is rotatably connected to the working platform (9); the rotation angle range of the support rod (11) is 0 to 90 degrees; when the support rod (11) is perpendicular to the working platform (9), the upper end of the support rod (11) is in contact with the top of the tunnel; The support rod (11) is provided with a support seat (16) and a limiting hole (162), and the support seat (16) is fixedly connected to the support rod (11); The fixing rod (13) is slidably connected to the working platform (9); A second motor (18) is arranged on the base (1), an output shaft of the second motor (18) is fixedly connected to a lead screw (19), the lead screw (19) is rotatably connected to the base (1), a second reel (20) and a ball bearing (27) are arranged on the lead screw (19), the ball bearing (27) is threadedly connected to a connecting plate (36), a first sliding bearing (24) and a first fixed bearing (35) are arranged on the base (1), the first sliding bearing (24) is slidably connected to the base (1), The first fixed support (35) is fixedly connected to the base (1); the first sliding support (24) and the first fixed support (35) are rotatably connected to the telescopic connecting rod (25); the upper end of the telescopic connecting rod (25) is rotatably connected to the second fixed support (28) and the second sliding support (29); the second fixed support (28) is fixedly connected to the working platform (9); the second sliding support (29) and the working platform (9) are slidably connected; and the connecting plate (36) is fixedly connected to the first sliding support (24); Rotating plates (10) are arranged on both sides of the working platform (9), and the rotating plates (10) are rotatably connected to the working platform (9); A second reel (20) is arranged on the lead screw (19), the second reel (20) is fixedly connected to the lead screw (19), the second reel (20) is fixedly connected to the second pull rope (12), and the second pull rope (12) is fixedly connected to the rotating plate (10).

2. The operating platform for tunnel top maintenance according to claim 1, characterized in that , a dot-shaped polyurethane block (161) is arranged on the support seat (16).

3. The operating platform for tunnel top maintenance according to claim 1, characterized in that A slide groove (131) and a limiting column (14) are provided on the fixed rod (13), the limiting column (14) is movably installed in the slide groove (131), and the limiting column (14) is slidably connected to the fixed rod (13).

4. The operating platform for tunnel top maintenance according to claim 3, characterized in that The right end of the limiting column (14) is movably connected to the spring (32), and the limiting column (14) can be inserted into the limiting hole (162).

5. The operating platform for tunnel top maintenance according to claim 1, characterized in that The support rod (11) is provided with a pulley (15), the pulley (15) is rotationally connected to the support rod (11), and the second pull rope (12) is in sliding contact with the pulley (15).

6. The operating platform for tunnel top maintenance according to claim 3, characterized in that The working platform (9) is provided with plastic tubes (26) on the top and bottom, and the second pull rope (12) is installed in the plastic tube (26).

7. The operating platform for tunnel top maintenance according to claim 1, characterized in that A first motor (6) is arranged on the working platform (9), the first motor (6) is fixedly mounted on the working platform (9), the output shaft of the first motor (6) is fixedly connected to the first pulley (34), the output shaft of the first motor (6) is connected to the rotating shaft (7) through a belt (33), a second pulley (31) is fixedly mounted on the rotating shaft (7), the rotating shaft (7) is fixedly connected to the first reel (8), a first pull rope (4) is arranged on the first reel (8), the lower end of the first pull rope (4) is fixedly connected to the material rack (3), the material rack (3) is slidably connected to the telescopic round rod (5), and the telescopic round rod (5) is fixedly mounted on the bottom surface of the working platform (9).

8. The operating platform for tunnel top maintenance according to claim 1, characterized in that A scissor jack (21) and a fixed plate (23) are arranged on the lower side of the base (1); the scissor jack (21) is fixedly mounted on the bottom surface of the base (1); the scissor jack (21) is fixedly connected to the fixed plate (23); the fixed plate (23) is slidably connected to the base (1); and four sets of wheels (2) are arranged under the fixed plate (23).

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