A roadway mobile maintenance platform

Abstract

This utility model relates to the technical field of maintenance platforms, and more particularly to a mobile maintenance platform for tunnels. It includes a frame, with a maintenance platform mounted on top of the frame. Symmetrical first and second caster sets are installed at the bottom of the frame for movement. The first caster sets are located on both sides of the tunnel's ground rails, and the second caster sets are also located on both sides of the ground rails. The distance between the second caster sets is greater than the distance between the first caster sets, thus ensuring that the first and second caster sets on the same side are arranged parallel to each other, forming a support structure at the edge of the maintenance platform. This utility model avoids platform instability and the risk of tilting or overturning by using the first and second caster sets. Furthermore, the adjustable height design of the first and second caster sets adapts to different terrains and ground rail heights, reducing the risk of tilting.

Description

Technical Field

[0001] This utility model relates to the technical field of maintenance platforms, and in particular to a mobile maintenance platform for tunnels. Background Technology

[0002] Currently, in automated storage and retrieval systems (AS / RS), chemical formation equipment storage facilities, and volumetric storage facilities, maintenance personnel typically need to perform various operations on the equipment within the aisles, especially during equipment inspection, maintenance, and upkeep. To ensure the safety and efficiency of maintenance work, maintenance platforms have become indispensable auxiliary tools.

[0003] However, the current tunnel maintenance platform has poor stability. When maintenance personnel work on the edge of the tunnel platform, the platform is unstable and is prone to tilting or overturning, posing a great safety hazard.

[0004] Therefore, there is an urgent need to design a mobile maintenance platform for tunnels to solve the problem of maintenance platforms being prone to tilting and overturning, as mentioned above. Utility Model Content

[0005] To address the shortcomings of the prior art, this application provides a mobile maintenance platform for tunnels.

[0006] The above-mentioned inventive objective of this application is achieved through the following technical solutions: A mobile maintenance platform for roadways includes a frame, with a maintenance platform mounted on top of the frame and symmetrical first and second caster sets installed at the bottom of the frame for movement. The first caster sets are located on both sides of the roadway's ground rails, and the second caster sets are located on both sides of the roadway's ground rails. The distance between the second caster sets is greater than the distance between the first caster sets, thus allowing the first and second caster sets on the same side to be arranged in parallel, thereby forming a support structure at the edge of the maintenance platform.

[0007] Preferably, a mounting base is provided at the bottom of the frame, and the first caster set includes a first swivel wheel. The first swivel wheel is mounted on the bottom of the frame through the mounting base, and the number of first swivel wheels on the same side is not less than two.

[0008] Preferably, an adjusting screw is fixedly connected to the mounting base, a first through hole is provided on the first universal wheel, and two adjusting nuts are screwed onto the adjusting screw. The first universal wheel is connected to the adjusting screw through the first through hole and is clamped and fixed to the adjusting screw by the two adjusting nuts.

[0009] Preferably, the second caster set includes a second swivel wheel, and the frame is provided with a lifting structure, and the frame is fixedly connected to the second swivel wheel through the lifting structure.

[0010] Preferably, a bearing mounting seat is installed on the frame, a horizontal transmission rod is rotatably connected to the bearing mounting seat, and a first bevel gear is fixedly connected to the transmission rod; The lifting structure includes a lifting base fixedly connected to the frame, a vertically oriented lifting screw rotatably connected to the lifting base, a second bevel gear fixedly connected to the end of the lifting screw, the second bevel gear meshing with the first bevel gear, a lifting slider screwed onto the lifting screw, the lifting slider being fixedly connected to a second universal wheel, and a guide rod parallel to the lifting screw fixedly connected to the lifting base, the guide rod being slidably connected to the lifting slider to restrict the rotation of the lifting slider; Rotating the transmission rod causes the first bevel gear to drive the second bevel gear to rotate, which in turn drives the lifting screw to rotate. The lifting slider moves along the axial direction of the lifting screw, thereby achieving the lifting and lowering of the second universal wheel.

[0011] Preferably, a staircase is provided on the frame, with the bottom of the staircase connected to the bottom of the frame and the top of the staircase fixedly connected to the maintenance platform. The bottom of the staircase is lower than the height of the transmission rod. The transmission rod extends to the bottom of the staircase and protrudes through a compensating link, thereby compensating for the height difference between the transmission rod and the bottom of the staircase through the compensating link. Then, the transmission rod is driven to rotate by rotating the compensating link at the bottom of the staircase.

[0012] Preferably, a fixing component is fixedly connected to the bottom of the staircase. The fixing component is sleeved on the compensating link to lock or unlock the compensating link. The compensating link is connected to the transmission rod through a universal joint, and multiple compensating links are connected through a universal joint. It also includes a hand crank, which is detachably connected to the compensating linkage extending outward from the bottom of the stairs. A hook is provided at the bottom of the stairs for the hand crank to be hooked.

[0013] Preferably, a symmetrical guide wheel assembly is provided at the bottom of the frame. The guide wheel assembly is rolledly connected to the top plate of the ground rail, thereby supporting and guiding the frame. The guide wheel assembly includes a first guide wheel and a second guide wheel. The first guide wheel is vertically rotatably connected to the bottom of the frame and is used to abut against the side of the top plate of the ground rail. The second guide wheel is horizontally rotatably connected to the bottom of the second guide wheel and is used to abut against the bottom surface of the top plate of the ground rail. A first gap is provided between the symmetrically arranged second guide wheels to allow space for the intermediate plate fixedly connected between the bottom plate and the top plate of the ground rail.

[0014] Preferably, the maintenance platform is equipped with safety fences, and safety chains connect the safety fences. Safety buckles are installed on the safety chains for maintenance personnel to hook safety ropes. Guardrail gates are installed on both sides of the maintenance platform, and the guardrail gates are hinged to the safety fences.

[0015] Preferably, the side of the guardrail gate is hinged to the safety fence, and the bottom of the guardrail gate is connected to the maintenance platform via an automatic locking telescopic strut.

[0016] Compared with the prior art, the beneficial effects of this utility model are: This invention avoids platform instability and the risk of tilting or overturning by setting up a first caster set and a second caster set. At the same time, the height-adjustable design of the first and second caster sets can adapt to different terrains and track heights, reducing the risk of tilting. The second caster set simplifies the height adjustment process through its low-position operation design, improving operational safety and convenience, and can effectively avoid obstacles. Furthermore, the guide wheel set further improves the stability of the platform, preventing falls and other accidents. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the tunnel mobile maintenance platform; Figure 2 This is a front view of the tunnel mobile maintenance platform; Figure 3 yes Figure 2 Enlarged view of part D in the image; Figure 4 yes Figure 1 Enlarged view of part A in the image; Figure 5 This is a schematic diagram of the lifting structure; Figure 6 yes Figure 1 Enlarged view of part B in the image; Figure 7 yes Figure 2 Enlarged view of part E in the image; Figure 8 yes Figure 1 Enlarged view of section C in the image; Reference numerals: 1. Frame; 101. Mounting base; 102. Adjusting screw; 103. Adjusting nut; 104. Lifting structure; 105. Bearing fixing seat; 1041. Lifting seat; 1042. Lifting screw; 1043. Second bevel gear; 1044. Lifting slider; 1045. Guide rod; 2. Maintenance platform; 3. First caster assembly; 301. First swivel wheel; 4. Second caster assembly; 401. Second swivel wheel; 5. Ground rail; 6. Transmission rod; 601. First bevel gear; 7. Staircase; 701. Hook; 8. Compensating link; 801. Universal joint; 9. Fixing component; 10. Hand crank; 11. Guide wheel assembly; 1101. First guide wheel; 1102. Second guide wheel; 12. Safety fence; 13. Safety chain; 1301. Safety buckle; 14. Guardrail gate; 15. Automatic locking telescopic support rod. Detailed Implementation

[0018] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application, including various details to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0019] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.

[0020] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0021] The following is a reference appendix. Figure 1-8 This application describes a mobile maintenance platform for tunnels.

[0022] A mobile maintenance platform for tunnels, such as Figure 1 and Figure 2 As shown, the system includes a frame 1, with a maintenance platform 2 on top of the frame 1. Symmetrical first caster sets 3 and second caster sets 4 are installed at the bottom of the frame 1 for movement. The first caster sets 3 are located on both sides of the ground rail 5 of the tunnel, and the second caster sets 4 are located on both sides of the ground rail 5 of the tunnel. The distance between the second caster sets 4 is greater than the distance between the first caster sets 3, so that the first caster sets 3 and the second caster sets 4 on the same side are arranged in parallel, thereby forming a support structure at the edge of the maintenance platform 2. Specifically, the spacing between the second caster sets 4 is greater than the spacing between the first caster sets 3, thus forming two parallel support structures, effectively preventing the platform from tilting or overturning.

[0023] As a preferred option, such as Figure 3 As shown, a mounting base 101 is provided at the bottom of the frame 1. The first caster group 3 includes a first omnidirectional wheel 301. The first omnidirectional wheel 301 is mounted on the bottom of the frame 1 through the mounting base 101. There are no less than two first omnidirectional wheels 301 on the same side. Specifically, the first caster group 3 forms a support structure at least four points of the frame 1, which improves the stability of the frame 1 during movement.

[0024] Preferably, an adjusting screw 102 is fixedly connected to the mounting base 101, and a first through hole (not shown in the figure) is provided on the first universal wheel 301. Two adjusting nuts 103 are screwed onto the adjusting screw 102. The first universal wheel 301 is connected to the adjusting screw 102 through the first through hole and is clamped and fixed to the adjusting screw 102 by the two adjusting nuts 103. Maintenance personnel can fine-tune the height of the maintenance platform 2 according to actual needs to ensure stability under various ground conditions. Specifically, if the maintenance platform 2 is offset to the left or right due to uneven ground, frame assembly tolerance, or personnel working on one side for a long time, the height of one side of the frame 1 can be adjusted by adjusting the adjusting screw 102 and adjusting nuts 103 on the first universal wheel 301, thereby adjusting the left and right offset of the entire maintenance platform 2.

[0025] As a preferred option, such as Figure 4 As shown, the second caster set 4 includes a second swivel wheel 401. The frame 1 is equipped with a lifting structure 104. The frame 1 is fixedly connected to the second swivel wheel 401 through the lifting structure 104. Specifically, when the first caster set 3 is in close contact with the ground rail 5, a buffer device is provided at the end of the ground rail 5. The distance between the buffer device and the ground rail 5 is only enough for the first caster set 3 to pass through. At this time, the second swivel wheel 401 is lifted by the lifting structure 104, and after avoiding the buffer device, the second swivel wheel 401 is lowered and pushed forward.

[0026] As a preferred option, such as Figure 4 and Figure 5 As shown, a bearing mounting seat 105 is installed on the frame 1. A horizontal transmission rod 6 is rotatably connected to the bearing mounting seat 105. A first bevel gear 601 is fixedly connected to the transmission rod 6. The lifting structure 104 includes a lifting seat 1041 fixedly connected to the frame 1. A vertical lifting screw 1042 is rotatably connected to the lifting seat 1041. A second bevel gear 1043 is fixedly connected to the end of the lifting screw 1042. The second bevel gear 1043 meshes with the first bevel gear 601. A lifting slider 1044 is screwed onto the lifting screw 1042. The lifting slider 1044 is fixedly connected to the second universal wheel 401. The lifting seat 1044... A guide rod 1045 parallel to the lifting screw 1042 is fixedly connected to 41. The guide rod 1045 is slidably connected to the lifting slider 1044 to limit the rotation of the lifting slider 1044. When the transmission rod 6 is rotated, the first bevel gear 601 drives the second bevel gear 1043 to rotate, and the second bevel gear 1043 drives the lifting screw 1042 to rotate. The lifting slider 1044 moves along the axial direction of the lifting screw 1042, thereby realizing the lifting of the second universal wheel 401. Specifically, the height adjustment is achieved by using bevel gears and the lifting screw 1042, so that the height adjustment is realized through mechanical transmission, which improves the accuracy and convenience of adjustment.

[0027] As a preferred option, such as Figure 1 , Figure 5 and Figure 6 As shown, a staircase 7 is installed on the frame 1. The bottom of the staircase 7 is connected to the bottom of the frame 1, and the top of the staircase 7 is fixedly connected to the maintenance platform 2. The bottom of the staircase 7 is lower than the height of the transmission rod 6. The transmission rod 6 extends to the bottom of the staircase 7 and protrudes through the compensation link 8. The compensation link 8 compensates for the height difference between the transmission rod 6 and the bottom of the staircase 7. Then, by rotating the compensation link 8 at the bottom of the staircase 7, the transmission rod 6 is driven to rotate. This allows personnel to directly adjust the lifting structure 104 on the ground, reducing the risk of personnel falling or other accidents.

[0028] Preferably, a fixing member 9 is fixedly connected to the bottom of the staircase 7. The fixing member 9 is sleeved on the compensating link 8 to lock or unlock the compensating link 8. The compensating link 8 is connected to the transmission rod 6 through a universal joint 801. Multiple compensating links 8 are connected through universal joints 801. Using universal joints 801 to connect the compensating links 8 allows for adjustment and rotation in different directions to adapt to different spatial layouts. In a specific embodiment, the fixing member 9 has a U-shaped structure with a locking hole in the middle. The shape of the locking hole matches the outward shape of the compensating link 8. Screw holes are provided at the edge of the U-shaped structure. The set bolt is screwed into the two screw holes. Rotating the set bolt brings the two screw holes closer together, thereby squeezing the compensating link 8 inside the locking hole and preventing the compensating link 8 from rotating.

[0029] Preferably, a hand crank 10 is also included. The hand crank 10 is detachably connected to the compensating link 8 extending outward from the bottom of the staircase 7. A hook 701 is provided at the bottom of the staircase 7 for the hand crank 10 to be hooked. The hand crank 10 can easily drive the compensating link 8, and the hook 701 provides a storage location, which is both practical and safe. The detachable design of the hand crank 10 also prevents the hand crank 10 from blocking the bottom of the staircase 7 and obstructing people from going up and down the stairs. In a specific embodiment, the connection method is an insertion type. For example, the end of the extending compensating link 8 is set as a rectangular block, and a rectangular hole is opened in the center of the hand crank 10. The rectangular block is inserted into the rectangular hole to complete the detachable connection between the hand crank 10 and the compensating link 8. At the same time, other detachable connection methods known to those skilled in the art are also possible, such as snap-fit, interlocking, tenon and mortise, etc., which will not be described in detail here.

[0030] As a preferred option, such as Figure 7As shown, a symmetrical guide wheel assembly 11 is provided at the bottom of the frame 1. The guide wheel assembly 11 is rolledly connected to the top plate of the ground rail 5, thereby supporting and guiding the frame 1. The guide wheel assembly 11 includes a first guide wheel 1101 and a second guide wheel 1102. The first guide wheel 1101 is vertically rotatably connected to the bottom of the frame 1 and is used to abut against the side of the top plate of the ground rail 5. The second guide wheel 1102 is horizontally rotatably connected to the bottom of the second guide wheel 1102 and is used to abut against the bottom surface of the top plate of the ground rail 5. A first gap is provided between the symmetrically arranged second guide wheels 1102 to allow space for the intermediate plate fixedly connected between the bottom plate and the top plate of the ground rail 5. Specifically, the first guide wheel 1101 and the second guide wheel 1102 respectively abut against the side and bottom surface of the top plate of the ground rail 5, providing a stable guiding effect. At the same time, it also further prevents the frame 1 from overturning and reduces the safety hazards to personnel. In addition, the first gap between the second guide wheels 1102 prevents collision or jamming with the intermediate plate fixedly connected in the ground rail 5.

[0031] As a preferred option, such as Figure 1 and Figure 8 As shown, a safety fence 12 is installed on the maintenance platform 2, and a safety chain 13 is connected between the safety fences 12. A safety buckle 1301 is installed on the safety chain 13, and the safety buckle 1301 is used for maintenance personnel to hook safety ropes. Guardrail gates 14 are installed on both sides of the maintenance platform 2. The guardrail gates 14 are hinged to the safety fences 12 to prevent personnel from falling from the edge of the maintenance platform 2.

[0032] Preferably, the side of the guardrail gate 14 is hinged to the safety fence 12, and the bottom of the guardrail gate 14 is connected to the maintenance platform 2 through an automatic locking telescopic strut 15. In one specific implementation, the automatic locking telescopic strut 15 is selected from NTI Transmission Co., Ltd. (model HFX49), made of SUS316. The two ends of the automatic locking telescopic strut 15 are fixed to the guardrail gate 14 and the maintenance platform 2 respectively. It has a built-in safety lock to prevent the guardrail gate 14 from closing. After the maintenance personnel open the guardrail gate 14, the safety lock automatically locks the opening angle of the guardrail gate 14. When it is necessary to close the guardrail gate 14, the maintenance personnel press the safety lock to unlock it, and then the guardrail gate 14 can be closed.

[0033] This invention avoids platform instability and the risk of tilting or overturning by setting up a first caster set 3 and a second caster set 4. At the same time, the height of the first caster set 3 and the second caster set 4 is adjustable to adapt to different terrains and the height of the ground rail 5, reducing the risk of tilting. The second caster set 4 simplifies the height adjustment process through a low-position operation design, improving operational safety and convenience, and can effectively avoid obstacles. Furthermore, the guide wheel set 11 further improves the stability of the platform, preventing falls and other accidents.

[0034] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A roadway mobile maintenance platform, characterized by, The system includes a frame (1), a maintenance platform (2) on top of the frame (1), and symmetrical first caster sets (3) and second caster sets (4) installed at the bottom of the frame (1) for the frame (1) to move. The first caster sets (3) are located on both sides of the ground rail (5) of the tunnel, and the second caster sets (4) are located on both sides of the ground rail (5) of the tunnel. The distance between the second caster sets (4) is greater than the distance between the first caster sets (3), so that the first caster sets (3) and the second caster sets (4) on the same side are arranged in parallel, thereby forming a support structure at the edge of the maintenance platform (2).

2. A roadway mobile maintenance platform as claimed in claim 1, characterised in that, The bottom of the frame (1) is provided with a mounting base (101), and the first caster group (3) includes a first universal wheel (301). The first universal wheel (301) is installed on the bottom of the frame (1) through the mounting base (101), and the number of first universal wheels (301) on the same side is not less than two.

3. A roadway maintenance platform as claimed in claim 2, wherein, An adjusting screw (102) is fixedly connected to the mounting base (101). A first through hole is provided on the first universal wheel (301). Two adjusting nuts (103) are screwed onto the adjusting screw (102). The first universal wheel (301) is connected to the adjusting screw (102) through the first through hole and is clamped and fixed on the adjusting screw (102) by the two adjusting nuts (103).

4. A roadway maintenance platform as claimed in claim 1 or claim 3, wherein, The second caster set (4) includes a second universal wheel (401), and a lifting structure (104) is provided on the frame (1). The frame (1) is fixedly connected to the second universal wheel (401) through the lifting structure (104).

5. A roadway maintenance platform as claimed in claim 4, wherein, A bearing mounting seat (105) is installed on the frame (1), and a horizontal transmission rod (6) is rotatably connected to the bearing mounting seat (105). A first bevel gear (601) is fixedly connected to the transmission rod (6). The lifting structure (104) includes a lifting seat (1041) fixedly connected to the frame (1), a vertical lifting screw (1042) rotatably connected to the lifting seat (1041), a second bevel gear (1043) fixedly connected to the end of the lifting screw (1042), the second bevel gear (1043) meshing with the first bevel gear (601), a lifting slider (1044) screwed onto the lifting screw (1042), the lifting slider (1044) fixedly connected to the second universal wheel (401), a guide rod (1045) parallel to the lifting screw (1042) fixedly connected to the lifting seat (1041), the guide rod (1045) slidably connected to the lifting slider (1044) to limit the rotation of the lifting slider (1044); Rotating the transmission rod (6), the first bevel gear (601) drives the second bevel gear (1043) to rotate, the second bevel gear (1043) drives the lifting screw (1042) to rotate, and the lifting slider (1044) moves along the axial direction of the lifting screw (1042), thereby realizing the lifting of the second universal wheel (401).

6. A roadway maintenance platform as claimed in claim 5, wherein, A staircase (7) is installed on the frame (1). The bottom of the staircase (7) is connected to the bottom of the frame (1), and the top of the staircase (7) is fixedly connected to the maintenance platform (2). The bottom of the staircase (7) is lower than the height of the transmission rod (6). The transmission rod (6) extends to the bottom of the staircase (7) through the compensation link (8) and extends out. The compensation link (8) compensates for the height difference between the transmission rod (6) and the bottom of the staircase (7). Then, the transmission rod (6) is driven to rotate by rotating the compensation link (8) at the bottom of the staircase (7).

7. A roadway maintenance platform as claimed in claim 6, wherein, The bottom of the staircase (7) is fixedly connected to a fastener (9), which is sleeved on the compensating link (8) to lock or unlock the compensating link (8). The compensating link (8) is connected to the transmission rod (6) through a universal joint (801), and multiple compensating links (8) are connected through a universal joint (801). It also includes a hand crank (10), which is detachably connected to the compensating link (8) extending outward from the bottom of the staircase (7). The bottom of the staircase (7) is provided with a hook (701) for the hand crank (10) to be hooked.

8. A mine roadway maintenance platform as claimed in claim 1 wherein, The bottom of the frame (1) is provided with a symmetrical guide wheel assembly (11). The guide wheel assembly (11) is rolled to the top plate of the ground rail (5) to support and guide the frame (1). The guide wheel assembly (11) includes a first guide wheel (1101) and a second guide wheel (1102). The first guide wheel (1101) is vertically rotatably connected to the bottom of the frame (1) and is used to abut against the side of the top plate of the ground rail (5). The second guide wheel (1102) is horizontally rotatably connected to the bottom of the second guide wheel (1102) and is used to abut against the bottom surface of the top plate of the ground rail (5). A first gap is provided between the symmetrically arranged second guide wheels (1102) to allow space for the intermediate plate fixedly connected between the bottom plate of the ground rail (5) and the top plate of the ground rail (5).

9. A mine roadway maintenance platform as claimed in claim 1 wherein, The maintenance platform (2) is equipped with a safety fence (12), and safety chains (13) are connected between the safety fences (12). Safety buckles (1301) are installed on the safety chains (13). The safety buckles (1301) are used by maintenance personnel to hook safety ropes. Guardrail gates (14) are installed on both sides of the maintenance platform (2). The guardrail gates (14) are hinged to the safety fences (12).

10. A roadway maintenance platform as claimed in claim 9, wherein, The side of the guardrail gate (14) is hinged to the safety fence (12), and the bottom of the guardrail gate (14) is connected to the maintenance platform (2) through an automatic locking telescopic support rod (15).

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