A mobile work platform for rail transport

Abstract

The utility model relates to a mobile work platform for rail transit relates to the field of tunnel construction, especially a mobile work platform for rail transit, overcome the high demand of elevation tool in prior art to working environment, error unstable and elevation measurement and climbing operation can not be carried out simultaneously under the condition of not increasing cost's problem, the utility model discloses a support frame one end fixedly connected mobile part, the other end fixedly connected work platform, the utility model discloses the fixed end of lifting rod in the utility model discloses fixed in mobile part, and its lifting end fixedly connected telescopic rod's fixed end, the utility model discloses telescopic rod's telescopic end fixedly connected damping device, the utility model discloses the fixed in telescopic end of telescopic rod for ink assembly, the utility model discloses the fixedly connected in the force receiving end of damping device for marking assembly, the utility model discloses a mobile work platform for rail transit is suitable for the field of tunnel construction, also is suitable for large building construction site.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction, and in particular to a mobile working platform for rail transit. Background Technology

[0002] The tunnel walls are typically equipped with electrical distribution devices, lighting fixtures, communication devices, and monitoring equipment. The installation height of these electrical devices is strictly regulated. For example, lighting fixtures must be installed at a height of at least 2.5 meters, and the antenna portion of communication devices must be installed at a height of at least 3 meters. In existing technologies, elevation is generally measured and installed by workers using operating mechanisms and elevation tools. Existing tunnel elevation tools, such as the tunnel elevation and spacing measuring instrument or ruler described in Chinese patent document CN207600398U, require a relatively dark working environment, making installation inconvenient. The ruler, on the other hand, requires manual measurement, resulting in significant errors and is unsuitable for scenarios requiring high measurement accuracy.

[0003] In existing technologies, workers first measure the elevation using operating mechanisms and elevation tools before installation, thus separating the two work steps. This work mode leads to longer construction periods or higher labor costs. No device has been found in the existing technology that can combine the two work steps into one. Summary of the Invention

[0004] The technical problems solved by this utility model include: 1. Overcome the problems of existing elevation tools having high requirements for the working environment and unstable errors.

[0005] 2. Overcome the problem that elevation measurement and climbing operations cannot be carried out simultaneously without increasing costs.

[0006] This utility model describes a mobile work platform for rail transit, the platform comprising: Moving parts, operating mechanism, and at least one elevation mechanism; The moving component includes a base plate; The operating mechanism includes a support frame and a workbench, and the workbench includes a work platform; One end of the support frame is fixedly connected to the moving part, and the other end is fixedly connected to the working platform; The elevation mechanism includes a lifting rod, a telescopic rod, an ink supply assembly, a damping device, and a marking assembly. The fixed end of the lifting rod is fixed to the moving part, and its lifting end is fixedly connected to the fixed end of the telescopic rod. The telescopic end of the telescopic rod is fixedly connected to the damping device, and the ink supply assembly is fixed to the telescopic end of the telescopic rod. The marking assembly is fixedly connected to the force-bearing end of the damping device.

[0007] In a further optimized version, the workbench also includes a fence, which is fixed to the work platform to form a semi-enclosed enclosure area.

[0008] In a further optimized design, the workbench also includes a pulley system, which is fixed to the edge of the work platform near the working wall, and the center of the pulley system is located on the extension surface of the plane on which the work platform is located.

[0009] In a further optimized design, the support frame is a stepped frame that is detachably and fixedly connected to the base plate; the working platform is detachably and fixedly connected to the support frame.

[0010] The design is further optimized so that the telescopic rod includes an inner tube, an outer tube, and a fixing pin. The inner tube is provided with multiple limiting holes, and the outer tube is provided with positioning holes. The outer tube is a fixed tube, and the inner tube is the telescopic end. One end of the inner tube is inserted into the outer tube, and a gap is left between the inner tube and the outer tube. Any one of the limiting holes is fixedly connected to the positioning hole by the fixing pin.

[0011] In a further optimized design, the moving component also includes a roller assembly, a motor assembly, and a drive assembly. The drive assembly is fixed to the base plate and is used to generate a motor drive signal to the motor assembly to control the start, stop, and speed of the motor assembly. The roller assembly is fixed under the base plate and is used to support the movement of the base plate. The motor assembly is fixed under the base plate and is used to drive the roller assembly to rotate.

[0012] In a further optimized design, the roller assembly includes multiple roller components, each roller component including a roller and a protective baffle. A baffle is provided on one side of the roller, and the baffle is fixedly connected to the base plate.

[0013] In a further optimized design, the damping device is configured as a hydraulic damper, which includes a damping bracket and a hydraulic damper. The hydraulic damper includes a cylinder and a piston rod. One end of the damping bracket is fixedly connected to the cylinder of the hydraulic damper, and the other end of the damping bracket is fixedly connected to the telescopic end of the telescopic rod. The piston rod is the force-bearing end of the damping device.

[0014] In a further optimized design, the damping device is configured as a closed-door damper, which includes a connecting rod and a hydraulic assembly. The hydraulic assembly is fixedly connected to the telescopic end of the telescopic rod, and one end of the connecting rod is fixed to the driving end of the hydraulic assembly. The connecting rod is the force-bearing end of the damping device.

[0015] In a further optimized design, the ink supply assembly includes an ink cartridge and an ink supply tube, and the marking assembly includes a marking wheel and a sponge ring. The ink cartridge is fixed to the telescopic end of the telescopic rod, and one end of the ink supply tube is connected to the ink cartridge, while the other end is connected to the sponge ring, for guiding the ink inside the ink supply tube to the sponge ring. An annular groove is provided on the outside of the marking wheel, and the sponge ring is embedded in the annular groove, with the outer diameter of the sponge ring being larger than the outer diameter of the marking wheel. The marking wheel is fixedly connected to the force-bearing end of the damping device.

[0016] The advantages of this utility model compared to the prior art are as follows: 1. The elevation mechanism of this utility model is an automated elevation mechanism that can work independently during use and is equipped with elastic components, which can ensure the continuity and clarity of the marking even when the tunnel wall is uneven.

[0017] 2. The mobile work platform for rail transit described in this utility model integrates the operating mechanism and elevation tool into one unit, enabling simultaneous construction and elevation work. This effectively shortens the construction cycle and reduces construction costs without increasing labor costs.

[0018] The mobile work platform for rail transit described in this utility model is applicable to the field of tunnel construction and is also suitable for large-scale building construction sites. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the mobile work platform described in this utility model; Figure 2 for Figure 1 A magnified view of a portion of the operating mechanism; Figure 3 for Figure 1 A schematic diagram of the telescopic rod 9 of the high-level bidding mechanism; Figure 4 for Figure 1 Schematic diagram of the dashed line component; Figure 5 This is a schematic diagram of the roller assembly 1 described in Embodiment 7; Figure 6 This is a schematic diagram of the damping device 12 described in Embodiment 8; Figure 7 This is a schematic diagram of the damping device 12 described in Embodiment Nine.

[0020] The labels for the attached figures are as follows: Roller assembly 1; Roller 101; Baffle 102; Base plate 2; Drive assembly 3; Support frame 4; Fence 5; Working platform 6; Pulley assembly 7; Lifting rod 8; Telescopic rod 9; Outer tube 91; Fixing pin 92; Limiting hole 93; Inner tube 94; Positioning hole 95; Ink cartridge 10; Ink supply tube 11; Damping device 12; Marking wheel 13; Sponge ring 14. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] It should be noted that some of the accompanying drawings are in a very simplified form and are not to scale, and are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention.

[0026] Implementation Method 1: Refer to Figure 1 This embodiment describes a mobile work platform for rail transit, the platform comprising: Moving parts, operating mechanism, and at least one elevation mechanism; The movable component includes a base plate 2; The operating mechanism includes a support frame 4 and a workbench, and the workbench includes a work platform 6; One end of the support frame 4 is fixedly connected to the moving part, and the other end is fixedly connected to the working platform 6; The elevation mechanism includes a lifting rod 8, a telescopic rod 9, an ink supply assembly, a damping device 12, and a marking assembly. The fixed end of the lifting rod 8 is fixed to the moving part, and its lifting end is fixedly connected to the fixed end of the telescopic rod 9. The telescopic end of the telescopic rod 9 is fixedly connected to the damping device 12, and the ink supply assembly is fixed to the telescopic end of the telescopic rod 9. The marking assembly is fixedly connected to the force-bearing end of the damping device 12.

[0027] This embodiment describes the method of using the mobile work platform for rail transit. In this embodiment, the height of the marking assembly is adjusted via the lifting rod 8, and the front-to-back position of the marking assembly is adjusted via the telescopic rod 9. In actual operation, the operating mechanism and at least one elevation mechanism are mounted on the base plate 2. The marking assembly is adjusted to the desired position, the base plate 2 is moved, and the marking assembly marks contour lines on the working wall. Workers simultaneously perform construction work on the working wall while on the operating mechanism. Furthermore, the base plate 2 can also carry necessary materials and tools.

[0028] In practical applications, the elevation mechanism is installed at the front of the mobile work platform in the direction of travel to achieve elevation operation. Workers stand on the operating mechanism at the rear and carry out construction by referring to the lines marked on the elevation mechanism. When multiple construction lines are required on the construction site, in order to meet the requirement of marking multiple construction lines simultaneously during the construction process, a corresponding number of elevation mechanisms can be added to the base plate 2.

[0029] In this embodiment, a preferred embodiment of the lifting rod 8 is a conventional pulley-type lifting rod operated by hand.

[0030] Implementation Method Two: Refer to Figure 1 and 2 This embodiment describes an optimized design of a mobile work platform for rail transit as described in Embodiment 1. In this embodiment, the work platform further includes a fence 5, which is fixed to the work platform 6 to form a semi-enclosed enclosure area.

[0031] This embodiment describes the device in which a fence 5 is installed at the edge of the work platform 6, and the fence 5 does not enclose one side of the work wall. By setting up a semi-enclosed fence, the safety of workers is improved without reducing the flexibility of working at height.

[0032] Implementation Method 3: Refer to Figure 2This embodiment describes an optimized design of a mobile work platform for rail transit as described in Embodiment 1. In this embodiment, the workbench further includes a pulley block 7, which is fixed to the edge of the work platform 6 near the work wall, and the center of the pulley block 7 is located on the extension surface of the plane on which the work platform 6 is located.

[0033] The device described in this embodiment includes a pulley assembly 7 installed on the edge of the workbench near the wall. The pulley assembly includes a mounting bracket and pulleys. The rolling surface of the pulleys abuts against the tunnel wall. When the workbench moves, the pulleys roll along the tunnel wall with the mobile work platform. The pulleys not only reduce the friction between the work platform 6 and the work wall but also provide lateral support for the work platform 6, ensuring its stability during construction and improving worker safety.

[0034] Implementation Method Four: Refer to Figure 1 This embodiment describes an optimized design of a mobile work platform for rail transit as described in Embodiment 1. In this embodiment, the support frame 4 is a stepped frame and is detachably and fixedly connected to the base plate 2; the work platform 6 is detachably and fixedly connected to the support frame 4.

[0035] In the device described in this embodiment, the support frame 4, the working platform 6, and the base plate 2 are all detachably connected, preferably by threaded connection, so that different combinations of support frames 4 can be replaced for different working heights.

[0036] Implementation Method 5: Refer to Figure 3 This embodiment describes an optimized design of a mobile work platform for rail transit as described in Embodiment 1. In this embodiment, the telescopic rod 9 includes an inner tube 94, an outer tube 91, and a fixing pin 92. The inner tube 94 is provided with multiple limiting holes 93, and the outer tube 91 is provided with positioning holes 95. The outer tube 91 is a fixed tube, and the inner tube 94 is a telescopic end. One end of the inner tube 94 is inserted into the outer tube 91, with a gap between them. Any one of the limiting holes 93 is fixedly connected to the positioning hole 95 through the fixing pin 92.

[0037] In the device described in this embodiment, the telescopic rod 9 is configured with an appropriate correspondence between the inner tube 94 and the outer tube 91 according to the actual situation, and the corresponding limiting hole 93 and positioning hole 95 are fixed by the fixing pin 92 to fix the length of the telescopic rod 9 and adjust the relative position of the marking assembly with the working wall surface.

[0038] Implementation Method Six: This implementation method is an optimized design of the mobile work platform for rail transit described in Implementation Method One. In this implementation method, the moving component further includes a roller assembly 1, a motor assembly, and a drive assembly 3. The drive assembly 3 is fixed on the base plate 2 and is used to generate motor drive signals to the motor assembly to control the start, stop, and speed of the motor assembly. The roller assembly 1 is fixed under the base plate 2 and is used to support the movement of the base plate 2. The motor assembly is fixed under the base plate 2 and is used to drive the roller assembly 1 to rotate.

[0039] This embodiment defines a preferred structure for the moving component, which further includes a roller assembly 1, a motor assembly, and a drive assembly 3. The motor assembly drives the rollers to rotate, and the drive assembly 3 controls the starting, stopping, and speed of the motor assembly. This means that the operator can control the direction and speed of movement of the base plate 2 via the drive assembly 3, thereby improving work efficiency. In practical applications, the drive assembly 3 can be a readily available motor control device.

[0040] Implementation Method Seven: Refer to Figure 5 This embodiment describes an optimized design of a mobile work platform for rail transit as described in Embodiment Six. In this embodiment, the roller assembly 1 includes multiple roller components, each roller component including a roller 101 and a protective baffle 102. A baffle 102 is provided on one side of the roller 101, and the baffle 102 is fixedly connected to the base plate 2.

[0041] The device described in this embodiment has a baffle 102 on one side of the roller 101 to limit the relative position of the roller 101 and the track, preventing the roller 101 from derailing. In practical applications, a preferred embodiment is that the bottom of the baffle 102 extends beyond the outer edge of the roller 101. When the roller 101 contacts the guide rail, the lower part of the baffle 102 covers the upper outer side of the guide rail, thus preventing the roller 101 from derailing.

[0042] Implementation Method 8: Refer to Figure 6 This embodiment describes an optimized design of a mobile work platform for rail transit as described in Embodiment 1. In this embodiment, the damping device 12 is configured as a hydraulic damper, which includes a damping bracket and a hydraulic damper. The hydraulic damper includes a cylinder and a piston rod. One end of the damping bracket is fixedly connected to the cylinder of the hydraulic damper, and the other end of the damping bracket is fixedly connected to the telescopic end of the telescopic rod 9. The piston rod is the force-bearing end of the damping device 12.

[0043] In this embodiment, the damping device 12 is a hydraulic damper. When the scribing wheel 13 rolls on the uneven working wall surface, it will generate a stress on the piston rod, causing the piston to squeeze the liquid in the cylinder. The liquid flows through the channels and orifices in the hydraulic cylinder to generate a damping effect and provide a reaction force for the scribing wheel 13, ensuring that the scribing wheel 13 is always in contact with the working wall surface.

[0044] Implementation Method Nine: Refer to Figure 7 This embodiment describes an optimized design of a mobile work platform for rail transit as described in Embodiment 1. In this embodiment, the damping device 12 is configured as a closed-door damper, which includes a connecting rod and a hydraulic assembly. The hydraulic assembly is fixedly connected to the telescopic end of the telescopic rod 9, and one end of the connecting rod is fixed to the driving end of the hydraulic assembly. The connecting rod is the force-bearing end of the damping device 12.

[0045] In this embodiment, the damping device 12 is set as a closed-door damper. During the rolling of the marking wheel 13, it drives the connecting rod to move. The gear in the transmission hydraulic assembly rotates and drives the rack plunger to move to the right. The spring is compressed, and the hydraulic oil flows from the right chamber to the left chamber through the one-way valve to form resistance against the displacement of the connecting rod, so as to ensure that the marking wheel 13 is always in contact with the working wall surface.

[0046] Implementation Method 10: Refer to Figure 4 This embodiment describes an optimized design of a mobile work platform for rail transit as described in Embodiment 1. In this embodiment, the ink supply assembly includes an ink cartridge 10 and an ink supply tube 11, and the marking assembly includes a marking wheel 13 and a sponge ring 14. The ink cartridge 10 is fixed to the telescopic end of the telescopic rod 9. One end of the ink supply tube 11 is connected to the ink cartridge 10, and the other end is connected to the sponge ring 14, for guiding the ink inside the ink supply tube 11 to the sponge ring 14. The marking wheel 13 has an annular groove on its outside, and the sponge ring 14 is embedded in the annular groove, with the outer diameter of the sponge ring 14 being larger than the outer diameter of the marking wheel 13. The marking wheel 13 is fixedly connected to the force-bearing end of the damping device 12.

[0047] In the device described in this embodiment, the rolling surface of the marking wheel 13 is provided with an annular groove, and a sponge ring 14 for absorbing ink is provided inside the annular groove. Since the marking part is an uneven rock wall, the sponge ring 14 is used to mark the lines. The sponge ring 14 can store a large amount of ink, and when it is squeezed under pressure, the ink stored inside will be squeezed out, fully adhering to the rock wall and realizing the marking function. It should be noted that the ink cartridge 10 is located at the front end of the inner tube 94, and the telescopic part of the inner tube 94 will not interfere with the ink cartridge 10.

Claims

1. A mobile work platform for rail transit, characterized in that, The platform includes: Moving parts, operating mechanism, and at least one elevation mechanism; The moving component includes a base plate (2); The operating mechanism includes a support frame (4) and a workbench, the workbench including a work platform (6). One end of the support frame (4) is fixedly connected to the moving part, and the other end is fixedly connected to the working platform (6). The elevation mechanism includes a lifting rod (8), a telescopic rod (9), an ink supply assembly, a damping device (12), and a marking assembly. The fixed end of the lifting rod (8) is fixed to the moving part, and its lifting end is fixedly connected to the fixed end of the telescopic rod (9). The telescopic end of the telescopic rod (9) is fixedly connected to the damping device (12), and the ink supply assembly is fixed to the telescopic end of the telescopic rod (9). The marking assembly is fixedly connected to the force-bearing end of the damping device (12).

2. A mobile work platform for rail transit according to claim 1, characterized in that, The workbench also includes a fence (5), which is fixed on the work platform (6) to form a semi-enclosed enclosure area.

3. A mobile work platform for rail transit according to claim 1, characterized in that, The workbench also includes a pulley block (7), which is fixed to the edge of the work platform (6) near the work wall, and the center of the pulley block (7) is located on the extension surface of the plane where the work platform (6) is located.

4. A mobile work platform for rail transit according to claim 1, characterized in that, The support frame (4) is a stepped frame and is detachably and fixedly connected to the base plate (2); the working platform (6) is detachably and fixedly connected to the support frame (4).

5. A mobile work platform for rail transit according to claim 1, characterized in that, The telescopic rod (9) includes an inner tube (94), an outer tube (91), and a fixing pin (92). The inner tube (94) is provided with multiple limiting holes (93), and the outer tube (91) is provided with a positioning hole (95). The outer tube (91) is a fixed tube, and the inner tube (94) is a telescopic end. One end of the inner tube (94) is inserted into the outer tube (91) and a gap is left between the inner tube (94) and the outer tube (91). Any limiting hole (93) is fixedly connected to the positioning hole (95) through the fixing pin (92).

6. A mobile work platform for rail transit according to claim 1, characterized in that, The moving component also includes a roller assembly (1), a motor assembly and a drive assembly (3). The drive assembly (3) is fixed on the base plate (2) and is used to generate a motor drive signal to the motor assembly to control the start, stop and speed of the motor assembly. The roller assembly (1) is fixed under the base plate (2) and is used to support the movement of the base plate (2). The motor assembly is fixed under the base plate (2) and is used to drive the roller assembly (1) to rotate.

7. A mobile work platform for rail transit according to claim 6, characterized in that, The roller assembly (1) includes multiple roller components, each roller component including a roller (101) and a protective baffle (102). A baffle (102) is provided on one side of the roller (101), and the baffle (102) is fixedly connected to the base plate (2).

8. A mobile work platform for rail transit according to claim 1, characterized in that, The damping device (12) is configured as a hydraulic damper, which includes a damping bracket and a hydraulic damper. The hydraulic damper includes a cylinder and a piston rod. One end of the damping bracket is fixedly connected to the cylinder of the hydraulic damper, and the other end of the damping bracket is fixedly connected to the telescopic end of the telescopic rod (9). The piston rod is the force-bearing end of the damping device (12).

9. A mobile work platform for rail transit according to claim 1, characterized in that, The damping device (12) is configured as a closed-door damper. The closed-door damper includes a connecting rod and a hydraulic assembly. The hydraulic assembly is fixedly connected to the telescopic end of the telescopic rod (9). One end of the connecting rod is fixed to the driving end of the hydraulic assembly. The connecting rod is the force-bearing end of the damping device (12).

10. A mobile work platform for rail transit according to claim 1, characterized in that, The ink supply assembly includes an ink cartridge (10) and an ink supply tube (11), and the marking assembly includes a marking wheel (13) and a sponge ring (14). The ink cartridge (10) is fixed to the telescopic end of the telescopic rod (9). One end of the ink supply tube (11) is connected to the ink cartridge (10), and the other end is connected to the sponge ring (14), which is used to guide the ink inside the ink supply tube (11) to the sponge ring (14). The marking wheel (13) is provided with an annular groove, and the sponge ring (14) is embedded in the annular groove. The outer diameter of the sponge ring (14) is larger than the outer diameter of the marking wheel (13). The marking wheel (13) is fixedly connected to the force-bearing end of the damping device (12).

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