Self-retracting operation rack capable of quickly switching rails

Abstract

The utility model discloses a self-retracting and releasing operation rack capable of quickly switching rails, and solves the problem that rail switching operation is inconvenient to carry out on an operation rack in the prior art. The rail switching device comprises a mounting mechanism arranged on a rail A in a sliding mode, a first workbench arranged on the mounting mechanism, a second workbench arranged on the mounting mechanism in a sliding mode and located above the first workbench, and a rail switching mechanism arranged at the bottom of the mounting mechanism in a mirror symmetry mode and used for switching the rail A; the two ends of the first workbench and the two ends of the second workbench are each provided with a climbing ladder. The mounting mechanism can slide along the track A, so that the position of the working rack is convenient to adjust, and the working rack can be moved to different tracks through the track changing mechanism, so that the speed of the working rack is increased, and the tunnel is convenient to overhaul.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunnel maintenance equipment, specifically relating to a self-retracting and extending work platform that can quickly switch tracks. Background Technology

[0002] In railway tunnel inspection and maintenance, it is sometimes necessary to change the route, that is, to move from one track to another. However, the existing track maintenance equipment is inconvenient to operate and has low efficiency when changing tracks, which affects the efficiency of railway tunnel inspection, maintenance and construction. Utility Model Content

[0003] This invention provides a self-retracting and extending work platform with a rapidly changeable track, thereby solving at least some of the aforementioned technical problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A self-retracting workbench with quick track switching capability includes an installation mechanism slidably mounted on track A, a first workbench mounted on the installation mechanism, a second workbench slidably mounted on the installation mechanism and located above the first workbench, and a track-changing mechanism mirror-symmetrically mounted at the bottom of the installation mechanism for switching track A; a climbing ladder is provided at each end of the first and second workbench.

[0006] Furthermore, the installation mechanism includes a base plate on track A, four columns on the base plate and connected to the first workbench, a guide support column slidably disposed within the columns and connected to the second workbench, a crossbar disposed between two adjacent columns, and two sets of mirror-symmetrical moving mechanisms disposed on the base plate to support the base plate sliding on the guide rail; the track changing mechanism is installed on the base plate.

[0007] Furthermore, the moving mechanism includes a roller mounting frame A that is mirror-symmetrically disposed at the bottom of the base plate, and a roller A that is rotatably disposed within the roller mounting frame A and slides along the track A.

[0008] Furthermore, the track-changing mechanism includes a track B located between two adjacent tracks A, a mounting column mirror-symmetrically mounted on the base plate, a movable column slidably mounted within the mounting column, a roller mounting frame B located at the bottom of the movable column, a roller B rotatably mounted within the roller mounting frame B and connected to the track B, and a hydraulic push rod A located within the mounting column and connected to the movable column.

[0009] Furthermore, several reinforcing rods connected to the first worktable are provided on both sides of the mounting column.

[0010] Furthermore, the guide support column is provided with support ribs on both sides that are connected to the second worktable.

[0011] Furthermore, the first worktable includes a fixed plate mounted on the mounting mechanism, a first sliding plate and a second sliding plate slidably mounted on the fixed plate, and two hydraulic push rods B mounted on the fixed plate and respectively connected to the first sliding plate and the second sliding plate.

[0012] Furthermore, the fixed plate is provided with a number of guide posts A, and guide grooves A are provided on the guide posts A. At least two roller mounting plates A are provided at the bottom of the first sliding plate and the second sliding plate, and guide wheels A located in the guide grooves A are rotatably mounted on the roller mounting plates A.

[0013] Furthermore, the first worktable is provided with mirror-symmetrically arranged clearance slots, and the second worktable includes a top plate on the mounting mechanism, movable plates A and B slidably disposed on the top plate, hydraulic push rods C disposed on the top plate and respectively connected to movable plates A and B, and hydraulic push rods D mirror-symmetrically disposed on the mounting mechanism and connected to the top plate through the corresponding clearance slots.

[0014] Furthermore, the top plate is provided with several guide posts B, and guide grooves B are provided on the guide posts B. At least two roller mounting plates B are provided at the bottom of the movable plate A and the movable plate B, and guide wheels B located in the guide grooves B are rotatably mounted on the roller mounting plates B.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model has a simple structure and is easy to use. The installation mechanism can slide along track A, which facilitates the adjustment of the position of the work platform. Furthermore, the track-changing mechanism allows the work platform to be moved to different tracks, thereby improving the track-changing speed of the work platform and facilitating the maintenance, repair, and construction of the tunnel. In addition, the installation mechanism can also facilitate the support and installation of the first and second work platforms. The second work platform is slidably mounted on the installation mechanism. By adjusting the height of the second work platform, workers can carry out maintenance work on the railway tunnel at different heights. The climbing ladder facilitates workers to enter the first or second work platform to carry out work. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0020] Figure 4 This is a schematic diagram of a utility model track-changing mechanism.

[0021] Figure 5 This is a schematic diagram of the installation mechanism of the utility model.

[0022] Figure 6 This is a schematic diagram of the unfolded first worktable of the utility model.

[0023] Figure 7 This is a schematic diagram of the unfolded second workbench of the utility model.

[0024] The names corresponding to the reference numerals in the attached figures are as follows:

[0025] 1. Track A; 2. First workbench; 3. Second workbench; 4. Climbing ladder; 5. Base plate; 6. Column; 7. Guide support column; 8. Roller mounting bracket A; 9. Roller A; 10. Track B; 11. Mounting column; 12. Roller mounting bracket B; 13. Roller B; 14. Hydraulic push rod A; 15. Reinforcing rod; 16. Support rib plate; 17. Fixed plate; 18. First sliding plate; 19. Second sliding plate; 20. Hydraulic push rod B; 21. Guide column A; 22. Guide groove A; 23. Roller mounting plate A; 24. Guide wheel A; 25. Clearance groove; 26. Top plate; 27. Moving plate A; 28. Moving plate B; 29. ​​Hydraulic push rod C; 30. Hydraulic push rod D; 31. Guide column B; 32. Guide groove B; 33. Roller mounting plate B; 34. Guide wheel B; 35. Moving column; 36. Crossbar. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] like Figure 1-7As shown, the present invention provides a self-retracting work platform that can quickly switch tracks, including an installation mechanism slidably mounted on track A1, a first workbench 2 mounted on the installation mechanism, a second workbench 3 slidably mounted on the installation mechanism and located above the first workbench 2, and a track-changing mechanism mirror-symmetrically mounted at the bottom of the installation mechanism for switching tracks A1; a climbing ladder 4 is provided at each end of the first workbench 2 and the second workbench 3.

[0029] In this invention, the installation mechanism can slide along track A1, thereby facilitating the adjustment of the position of the work platform. Furthermore, the track-changing mechanism enables the work platform to be moved to different tracks, thereby increasing the speed of the work platform and facilitating tunnel maintenance. In addition, the installation mechanism can also facilitate the support and installation of the first work platform 2 and the second work platform 3. The second work platform 3 is slidably mounted on the installation mechanism. By adjusting the height of the second work platform 3, workers can perform maintenance work on the railway tunnel at different heights. The climbing ladder 4 facilitates workers to enter the first work platform 2 or the second work platform 3 to perform their work.

[0030] In some embodiments, the installation mechanism includes a base plate 5 mounted on a track A1, four columns 6 mounted on the base plate 5 and connected to the first worktable 2, guide support columns 7 slidably mounted within the columns 6 and connected to the second worktable 3, crossbars 36 positioned between adjacent columns 6, and two sets of mirror-symmetrical moving mechanisms mounted on the base plate 5 to support the base plate 5 sliding on the guide rails; a track-changing mechanism is mounted on the base plate 5. Specifically, the crossbars 36 are positioned between adjacent columns 6, effectively enhancing the stability of the installation mechanism. The track A1 includes two parallel guide rails, and the two sets of moving mechanisms are respectively in contact with the two guide rails, i.e., the two moving mechanisms are arranged one-to-one with the two guide rails, thereby enabling the worktable to move on the two tracks A1. The columns 6 are hollow rectangular structures, the first worktable 2 is fixedly mounted on the columns 6, and the guide support columns 7 are slidably mounted within the columns 6 and connected to the bottom of the second worktable 3. In use, the guide support columns 7 can guide the movement direction of the second worktable 3, thereby facilitating the raising or lowering of the second worktable 3.

[0031] In some embodiments, the moving mechanism includes a roller mounting frame A8 mirror-symmetrically disposed at the bottom of the base plate 5, and a roller A9 rotatably disposed within the roller mounting frame A8 and sliding along the track A1. The roller mounting frame A8 is disposed at the bottom of the base plate 5, and the roller A9 is rotatably mounted within the roller mounting frame A8 and can slide on the track A1, thereby facilitating the movement of the workbench.

[0032] In some embodiments, the track-changing mechanism includes a track B10 disposed between two adjacent tracks A1, a mounting column 11 mirror-symmetrically disposed on the base plate 5, a movable column 35 slidably disposed within the mounting column 11, a roller mounting frame B12 disposed at the bottom of the movable column 35, a roller B13 rotatably disposed within the roller mounting frame B12 and connected to the track B10, and a hydraulic push rod A14 disposed within the mounting column 11 and connected to the movable column 35. When rail replacement is required, rail B10 is placed between two sets of rails A1, with roller B13 in contact with rail B10. Hydraulic push rod A14 is activated, pushing moving column 35 to move. Moving column 35 causes base plate 5 to rise, thus separating roller A9 from rail A1 (i.e., the lowest point of roller A9 is higher than the top of rail A1). Then, base plate 5 is pushed, causing roller B13 to slide on rail B10, allowing base plate 5 to move along rail B10. When it moves to another rail A1, hydraulic push rod A14 is activated again, pushing moving column 35 to move. Moving column 35 causes base plate 5 to fall, causing roller A9 to contact rail A1, thus completing the rail replacement operation. This allows the work platform to quickly perform rail replacement operations, thereby improving the efficiency of railway tunnel inspection, maintenance, or construction.

[0033] Preferably, four mounting columns 11 are provided. The four mounting columns 11 have a hollow structure inside to facilitate the installation of the hydraulic push rod A14 and the moving column 35. The four mounting columns 11 are distributed in a rectangular structure on the base plate 5.

[0034] In some embodiments, the mounting column 11 is provided with a plurality of reinforcing rods 15 on both sides, which are connected to the first workbench 2. The reinforcing rods 15 can strengthen the structural strength of the first workbench 2, thereby facilitating the maintenance work performed by the workers standing on the first workbench 2.

[0035] In some embodiments, the guide support column 7 is provided with support ribs 16 on both sides, which are connected to the second workbench 3. The support ribs 16 can improve the structural strength between the guide support column 7 and the second workbench 3, thereby facilitating the maintenance work performed by the staff standing on the second workbench 3.

[0036] In some embodiments, the first workbench 2 includes a fixed plate 17 mounted on a mounting mechanism, a first sliding plate 18 and a second sliding plate 19 slidably mounted on the fixed plate 17, and two hydraulic push rods B20 mounted on the mounting mechanism and respectively connected to the first sliding plate 18 and the second sliding plate 19. A climbing ladder 4 is respectively mounted on the first sliding plate 18 and the second sliding plate 19. The fixed plate 17 is mounted on the column 6. The first sliding plate 18 and the second sliding plate 19 are slidably mounted on the fixed plate 17. The two hydraulic push rods B20 are mounted on the crossbar 36, and the output ends of the two hydraulic push rods B20 are respectively connected to the first sliding plate 18 and the second sliding plate 19 (i.e., the output end of one hydraulic push rod B20 is connected to the first sliding plate 18, and the output end of the other hydraulic push rod B20 is connected to the second sliding plate 19). In use, when it is necessary to unfold the first workbench 2... Two hydraulic push rods B20 are activated. One hydraulic push rod B20 pushes the first sliding plate 18 to the left, and the other hydraulic push rod B20 pushes the second sliding plate 19 to the right, thereby unfolding the first worktable 2 and increasing its area to facilitate tunnel maintenance. Similarly, when the first worktable 2 is to be folded up, two hydraulic push rods B20 are activated. One hydraulic push rod B20 pushes the first sliding plate 18 to the right, and the other hydraulic push rod B20 pushes the second sliding plate 19 to the left, thereby folding up the first worktable 2.

[0037] In some embodiments, the fixed plate 17 is provided with a plurality of guide posts A21, and guide grooves A22 are formed on the guide posts A21. At least two roller mounting plates A23 are provided at the bottom of the first sliding plate 18 and the second sliding plate 19, and guide wheels A24 located in the guide grooves A22 are rotatably mounted on the roller mounting plates A23. In use, when the first sliding plate 18 and the second sliding plate 19 are folded or unfolded, the guide wheels A24 rotate in the guide grooves A22 as the first sliding plate 18 and the second sliding plate 19 move, thereby reducing the friction of the first sliding plate 18 and the second sliding plate 19 when folding or unfolding. At the same time, the guide posts A21 can also guide the movement direction of the first sliding plate 18 and the second sliding plate 19, thereby facilitating the folding or unfolding of the first sliding plate 18 and the second sliding plate 19.

[0038] In some embodiments, the first workbench 2 is provided with mirror-symmetrical relief grooves 25, and the second workbench 3 includes a top plate 26 provided on the mounting mechanism, a movable plate A27 and a movable plate B28 slidably provided on the top plate 26, a hydraulic push rod C29 provided on the top plate 26 and respectively connected to the movable plate A27 and the movable plate B28, and a hydraulic push rod D30 mirror-symmetrically provided on the mounting mechanism and connected to the top plate 26 through the corresponding relief grooves 25. The climbing ladder 4 is installed on the movable plate A27 and movable plate B28 respectively. The bottom of the top plate 26 is connected to the top of the guide support column 7. The guide support column 7 can guide the movement direction of the top plate 26. Two hydraulic push rods C29 are connected to the movable plate A27 and movable plate B28 respectively (that is, the output end of one hydraulic push rod C29 is connected to the movable plate A27, and the output end of the other hydraulic push rod C29 is connected to the movable plate B28). The hydraulic push rod D30 is set on the bottom plate 5 and is located between two adjacent columns 6. The hydraulic push rod D30 passes through the relief groove 25 and is connected to the top plate 26.

[0039] When the height of the second work platform 3 needs to be adjusted, two hydraulic push rods D30 are activated. The two hydraulic push rods D30 simultaneously push the top plate 26 upward or downward, and the guide support column 7 moves synchronously with the top plate 26, thereby adjusting the height of the second work platform 3. When the second work platform 3 needs to be unfolded, two hydraulic push rods C29 are activated. One hydraulic push rod C29 moves the moving plate A27 to the left, and the other hydraulic push rod C29 moves the moving plate B28 to the right, thereby unfolding the second work platform 3 and increasing the area of ​​the top plate 26, which facilitates the maintenance of the tunnel by the staff. Similarly, when retracting, one hydraulic push rod C29 moves the moving plate A27 to the right, and the other hydraulic push rod C29 moves the moving plate B28 to the left, thus completing the retraction of the moving plates A27 and B28.

[0040] In some embodiments, the top plate 26 is provided with a plurality of guide posts B31, and guide grooves B32 are formed on the guide posts B31. At least two roller mounting plates B33 are provided at the bottom of the movable plates A27 and B28, and guide wheels B34 located in the guide grooves B32 are rotatably mounted on the roller mounting plates B33. In use, when the movable plates A27 and B28 are unfolded or retracted, the movable plates A27 and B28 drive the guide wheels B34 to rotate in the guide grooves B32 during the movement. The guide wheels B34 can reduce the friction of the movable plates A27 and B28 during movement, thereby facilitating the unfolding or retraction of the movable plates A27 and B28. At the same time, the guide posts B31 can guide the movement direction of the movable plates A27 and B28.

[0041] When this utility model is in use, the work platform is pushed to the required position, and the workers can climb the first work platform 2 or the second work platform 3 through the climbing ladder 4 to inspect the tunnel.

[0042] When track replacement is required, track B10 is placed between two sets of tracks A1, and roller B13 is brought into contact with track B10. Then, hydraulic push rod A14 is activated, which pushes moving column 35 to move. Moving column 35 causes base plate 5 to rise, thereby separating roller A9 from track A1 (i.e., the lowest point of roller A9 is higher than the top of track A1). Then, the work platform is pushed, causing roller B13 to slide on track B10, thus moving the work platform on track B10. When the work platform moves to another set of tracks A1, hydraulic push rod A14 is activated, which pushes moving column 35 to move. Moving column 35 causes base plate 5 to fall, causing roller A9 to come into contact with the other set of tracks A1, thus completing the track replacement operation. This allows the work platform to quickly perform track replacement operations, thereby improving the tunnel maintenance efficiency.

[0043] When the first workbench 2 needs to be unfolded, two hydraulic push rods B20 are activated. One hydraulic push rod B20 pushes the first sliding plate 18 to the left, and the other hydraulic push rod B20 pushes the second sliding plate 19 to the right, thereby unfolding the first workbench 2 and increasing its area to facilitate tunnel maintenance. Similarly, when the first workbench 2 needs to be folded up, two hydraulic push rods B20 are activated. One hydraulic push rod B20 pushes the first sliding plate 18 to the right, and the other hydraulic push rod B20 pushes the second sliding plate 19 to the left, thereby folding up the first workbench 2.

[0044] When the height of the second work platform 3 needs to be adjusted, the hydraulic push rod D30 is activated. The hydraulic push rod D30 pushes the top plate 26 upward or downward, thereby adjusting the height of the second work platform 3. When the second work platform 3 needs to be unfolded, the two hydraulic push rods C29 are activated. One hydraulic push rod C29 moves the moving plate A27 to the left, and the other hydraulic push rod C29 moves the moving plate B28 to the right, thereby unfolding the second work platform 3 and increasing the area of ​​the top plate 26, which facilitates the maintenance of the tunnel by the staff. Similarly, when retracting, one hydraulic push rod C29 moves the moving plate A27 to the right, and the other hydraulic push rod C29 moves the moving plate B28 to the left, thus completing the retraction of the moving plates A27 and B28.

[0045] The hydraulic push rods A14, B20, C29, and D30 used in this invention are existing technologies and can be purchased and used directly on the market. Therefore, the structure, circuit, and principle of the hydraulic push rods A14, B20, C29, and D30 will not be described in detail here.

[0046] Finally, it should be noted that the above embodiments are merely preferred embodiments of this utility model used to illustrate the technical solutions of this utility model, and are not intended to limit it, nor are they intended to limit the patent scope of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. That is to say, any changes or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but whose technical problems are still consistent with those of this utility model, should be included within the protection scope of this utility model. In addition, the direct or indirect application of the technical solutions of this utility model to other related technical fields are similarly included within the patent protection scope of this utility model.

Claims

1. A self-retracting and extending work platform with rapidly changeable tracks, characterized in that, It includes an installation mechanism that slides on track A (1), a first workbench (2) on the installation mechanism, a second workbench (3) that slides on the installation mechanism and is located above the first workbench (2), and a track-changing mechanism that is mirror-symmetrically located at the bottom of the installation mechanism for switching track A (1); a climbing ladder (4) is provided at each end of the first workbench (2) and the second workbench (3).

2. The self-retracting and extending work platform with rapid track switching according to claim 1, characterized in that, The installation mechanism includes a base plate (5) on track A (1), four columns (6) on the base plate (5) and connected to the first worktable (2), a guide support column (7) slidably disposed in the column (6) and connected to the second worktable (3), a crossbar (36) between two adjacent columns (6), and two sets of mirror-symmetrical moving mechanisms on the base plate (5) for supporting the base plate (5) to slide on the guide rail; the track changing mechanism is installed on the base plate (5).

3. The self-retracting and extending work platform with rapid track switching according to claim 2, characterized in that, The moving mechanism includes a roller mounting frame A (8) mirror-symmetrically disposed at the bottom of the base plate (5), and a roller A (9) rotatably disposed within the roller mounting frame A (8) and sliding along the track A (1).

4. A self-retracting and extending work platform with rapidly changeable tracks according to claim 2, characterized in that, The track-changing mechanism includes a track B (10) located between two adjacent tracks A (1), a mounting column (11) mirror-symmetrically located on the base plate (5), a movable column (35) slidably located within the mounting column (11), a roller mounting frame B (12) located at the bottom of the movable column (35), a roller B (13) rotatably located within the roller mounting frame B (12) and connected to the track B (10), and a hydraulic push rod A (14) located within the mounting column (11) and connected to the movable column (35).

5. A self-retracting work platform with rapidly changeable tracks according to claim 2, characterized in that, The mounting column (11) has several reinforcing rods (15) on both sides that are connected to the first workbench (2).

6. A self-retracting work platform with rapidly changeable tracks according to claim 2, characterized in that, The guide support column (7) is provided with support ribs (16) on both sides that are connected to the second worktable (3).

7. A self-retracting work platform with rapidly changeable tracks according to claim 1, characterized in that, The first worktable (2) includes a fixed plate (17) on the mounting mechanism, a first sliding plate (18) and a second sliding plate (19) slidably disposed on the fixed plate (17), and two hydraulic push rods B (20) disposed on the mounting mechanism and respectively connected to the first sliding plate (18) and the second sliding plate (19).

8. A self-retracting work platform with rapidly changeable tracks according to claim 7, characterized in that, The fixed plate (17) is provided with a number of guide posts A (21), and the guide posts A (21) are provided with guide grooves A (22). The bottom of the first sliding plate (18) and the second sliding plate (19) is provided with at least two roller mounting plates A (23), and the roller mounting plates A (23) are rotatably provided with guide wheels A (24) located in the guide grooves A (22).

9. A self-retracting and extending work platform with rapidly changeable tracks according to claim 1, characterized in that, The first workbench (2) is provided with mirror-symmetrical relief grooves (25). The second workbench (3) includes a top plate (26) on the mounting mechanism, a sliding plate A (27) and a sliding plate B (28) on the top plate (26), a hydraulic push rod C (29) on the top plate (26) and connected to the sliding plate A (27) and the sliding plate B (28) respectively, and a hydraulic push rod D (30) mirror-symmetrically provided on the mounting mechanism and connected to the top plate (26) through the corresponding relief grooves (25).

10. A self-retracting work platform with rapidly changeable tracks according to claim 9, characterized in that, The top plate (26) is provided with several guide posts B (31), and guide grooves B (32) are provided on the guide posts B (31). At least two roller mounting plates B (33) are provided at the bottom of the movable plate A (27) and the movable plate B (28). Guide wheels B (34) located in the guide grooves B (32) are rotatably provided on the roller mounting plates B (33).

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