Telescopic trolley for tunnel lining

By designing a telescopic trolley for tunnel lining, and using hydraulic cylinders and explosion-proof control cabinets to achieve automatic platform adjustment, the problem of traditional trolleys being unable to adapt to changes in tunnel cross-sections has been solved, improving construction efficiency and safety.

CN223739426UActive Publication Date: 2025-12-30LANZHOU JIAOTONG UNIV
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Patent Information

Application Number
CN202520623917.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2025-12-30
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Traditional tunnel lining trolleys are designed with fixed dimensions and single functions, which cannot flexibly adapt to changes in tunnel cross-sectional dimensions and complex and ever-changing construction environments, resulting in low equipment adaptability and flexibility.

Method used

A telescopic trolley for tunnel lining was designed, which adopts a steel beam frame, hydraulic cylinders and climbing components. The sliding of the platform is adjusted by the extension and retraction of the hydraulic cylinders. Combined with the explosion-proof control cabinet, the platform can be automatically controlled to adapt to changes in the tunnel cross-sectional dimensions. It is also equipped with a storage box to store construction equipment and provide safety protection.

Benefits of technology

It enables precise adjustment of the trolley in both vertical and horizontal directions, improving construction efficiency and safety, reducing the risk of manual intervention, and ensuring the accuracy and safety of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tunnel lining telescopic trolley, which relates to the technical field of tunnel construction equipment and comprises a steel beam framework, and storage boxes are welded on the left side and the right side of the bottom of the steel beam framework; the first working platform, the second working platform and the third working platform are sequentially arranged on the steel beam framework from top to bottom; due to the fact that the second hydraulic cylinder is arranged, the fourth platen can slide in a telescopic mode along the surface of the third platen due to stretching and retracting of the second hydraulic cylinder, in the same way, the third hydraulic cylinder can enable the sixth platen to slide in a telescopic mode along the surface of the fifth platen, and the purpose that the fourth platen can slide in a telescopic mode according to different tunnel lining widths is achieved. The operation size of the trolley is adjusted in the vertical direction and the horizontal direction so as to flexibly adapt to the effect of tunnel section size change and complex and changeable construction environments, the overall construction efficiency is improved, and meanwhile the adjusting process is accurate and stable.
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Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and more specifically, to a telescopic trolley for tunnel lining. Background Technology

[0002] With the rapid development of urban infrastructure and transportation networks, tunnel excavation and construction technology has received increasing attention. In the process of tunnel construction, the support and installation of lining is a key link to ensure structural safety and construction quality. However, existing lining construction equipment has some shortcomings in terms of structural design, functional configuration and ease of operation. For example, traditional tunnel lining trolleys mostly adopt a fixed size and single function design, which cannot flexibly adapt to changes in tunnel cross-sectional dimensions and complex and ever-changing construction environments. The adaptability and flexibility of the equipment are low. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, this utility model provides a telescopic tunnel lining trolley to solve the problem that most traditional tunnel lining trolleys adopt a fixed size and single function design, which cannot flexibly adapt to changes in tunnel cross-sectional dimensions and complex and ever-changing construction environments, resulting in low adaptability and flexibility of the equipment.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a telescopic tunnel lining trolley, comprising:

[0005] A steel beam frame, with storage boxes welded to both the left and right sides of the bottom of the steel beam frame;

[0006] The first working platform, the second working platform, and the third working platform are arranged sequentially from top to bottom on the steel beam frame.

[0007] The second working platform includes a platform three and a hydraulic cylinder two. The inner side of the platform three is welded to the steel beam frame. A platform four is slidably sleeved on the platform three. The bottom surfaces of both the platform three and the platform four are bolted with first calipers. The two ends of the hydraulic cylinder two are respectively installed with two sets of first caliper bolts.

[0008] The third working platform includes a platform five and a hydraulic cylinder three. The inner side of the platform five is welded to the storage box. A platform six is ​​slidably sleeved on the platform five. The bottom surfaces of both the platform five and the platform six are bolted with second calipers. The two ends of the hydraulic cylinder three are respectively installed with two sets of second caliper bolts.

[0009] Hydraulic cylinder one, the lower end of which is welded to the top of the steel beam frame, and the telescopic end of which is connected to the first working platform;

[0010] Climbing components, which are used to assist workers in climbing to the first working platform, the second working platform, and the third working platform;

[0011] Four moving mechanisms are arranged symmetrically in pairs at the bottom of the two storage boxes;

[0012] An explosion-proof control cabinet, which is bolted to a storage box.

[0013] Preferably, the number of the first working platform, the second working platform, and the third working platform are one, two, and two respectively. The first working platform is set on the top of the steel beam frame, and the two second working platforms and the two third working platforms are symmetrically arranged on the left and right sides of the steel beam frame. The hydraulic cylinder one, the hydraulic cylinder two, the second guardrail, and the moving mechanism can be automatically adjusted through the control buttons of the explosion-proof control cabinet.

[0014] Preferably, the first working platform includes a first platform and two second platforms, the first platform being higher than the second platform, a staircase being provided between the first platform and the two second platforms, and the bottom surface of the first platform being fixedly connected to the top of the first hydraulic cylinder.

[0015] Preferably, all of the tabletops 1, 2, 3, 4, 5 and 6 are provided with anti-slip protrusions.

[0016] Preferably, symmetrical first guardrails are fixedly connected to the front and rear sides of the platform one, platform two, and the staircase; two retractable second guardrails are provided between platform three and platform four, and the two second guardrails are symmetrically arranged on the front and rear sides of platform three and platform four; and two retractable third guardrails are provided between platform five and platform six, and the two third guardrails are symmetrically arranged on the front and rear sides of platform five and platform six.

[0017] Preferably, the climbing assembly includes six straight ladders, which are bolted to two platform two, two platform three, and two platform five respectively. Each of the six ladders has anti-slip stripes on its treads, symmetrical guardrails are fixedly connected to both sides of each ladder in the width direction, and an anti-slip steel plate is provided on the top of each ladder.

[0018] Preferably, the moving mechanism includes a bridge body and a drive shaft. The top of the middle part of the bridge body is fixedly connected to the bottom surface of the storage box. Tires are bolted to both ends of the drive shaft. A driving component is provided on the bridge body. The driving component is used to drive the drive shaft to rotate within the bridge body. The outer surface of the tire is uniformly provided with anti-slip patterns. The driving component can also be automatically adjusted through the control buttons of the explosion-proof control cabinet.

[0019] Preferably, it also includes two sets of diagonal bracing brackets, which are set at an angle. One set of diagonal bracing brackets is welded between the platform three and the steel beam frame, and the other set of diagonal bracing brackets is welded between the platform five and the storage box.

[0020] Preferably, the steel beam frame is welded from I-beams.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This invention utilizes the second hydraulic cylinder. Due to the extension and retraction of the second hydraulic cylinder, the fourth platform can slide along the surface of the third platform. Similarly, the third hydraulic cylinder can make the sixth platform slide along the surface of the fifth platform. This allows for the adjustment of the trolley's working dimensions in both the vertical and horizontal directions according to the different widths of the tunnel lining. This enables flexible adaptation to changes in tunnel cross-sectional dimensions and complex and varied construction environments, thereby improving overall construction efficiency. Furthermore, the adjustment process is relatively precise and stable.

[0023] This utility model, through the design of a storage box, can store and store the equipment needed for construction.

[0024] This utility model provides enclosure and auxiliary support through the setting of a first guardrail, a second guardrail, a third guardrail, and a protective handrail. In addition, the setting of anti-slip protrusions, anti-slip stripes, and anti-slip steel plates provides anti-slip function to ensure the safety of construction personnel working on the platform.

[0025] This utility model, through the setting of an explosion-proof control cabinet and the automatic control of hydraulic cylinder one, hydraulic cylinder two, second protective railing, and drive components through a preset program, allows operators to remotely control the lifting, lateral movement, and platform size adjustment of the trolley within a safe area, greatly reducing the risk of manual intervention and ensuring the accuracy and safety of operation. Attached Figure Description

[0026] Figure 1 This is a three-dimensional view of the main structure of this utility model;

[0027] Figure 2 This is a front view of the main structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the relevant structure of the first working platform of this utility model;

[0029] Figure 4 This is a schematic diagram of the relevant structure of the second working platform of this utility model;

[0030] Figure 5 This is a schematic diagram of the relevant structure of the third working platform of this utility model;

[0031] Figure 6This is a schematic diagram of the relevant structure of the climbing component of this utility model;

[0032] Figure 7 This is a schematic diagram of the relevant structure of the moving mechanism of this utility model.

[0033] [Figure Labels]

[0034] 1. Steel beam frame; 2. Storage box; 3. First working platform; 31. Platform 1; 32. Platform 2; 33. Staircase; 34. First guardrail; 4. Second working platform; 41. Platform 3; 42. Platform 4; 43. First caliper; 44. Hydraulic cylinder 2; 45. Second guardrail; 5. Third working platform; 51. Platform 5; 52. Platform 6; 53. Second caliper; 54. Hydraulic cylinder 3; 55. Third guardrail; 6. Hydraulic cylinder 1; 7. Climbing assembly; 71. Straight ladder; 72. Anti-slip stripes; 73. Guardrail; 74. Anti-slip steel plate; 8. Moving mechanism; 81. Bridge body; 82. Drive shaft; 83. Tire; 84. Drive component; 85. Anti-slip pattern; 9. Explosion-proof control cabinet; 10. Anti-slip protrusions; 11. Diagonal brace. Detailed Implementation

[0035] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0036] As attached Figure 1 To be continued Figure 7This utility model provides a retractable tunnel lining trolley, including a steel beam frame 1, with storage boxes 2 welded to the left and right sides of the bottom of the steel beam frame 1; a first working platform 3, a second working platform 4, and a third working platform 5, which are arranged sequentially from top to bottom on the steel beam frame 1; the second working platform 4 includes a platform 3 41 and a hydraulic cylinder 2 44, the inner side of the platform 3 41 is welded to the steel beam frame 1, and a platform 42 is slidably sleeved on the platform 3 41; the bottom surfaces of the platform 3 41 and the platform 42 are bolted with first clamps 43, and the two ends of the hydraulic cylinder 2 44 are respectively bolted to two sets of first clamps 43; the third working platform 5 includes a platform 51 and a hydraulic cylinder 2 44. The inner side of cylinder 3 54 and platform 51 is welded to the storage box 2. Platform 6 52 is slidably sleeved on platform 51. The bottom surfaces of platform 51 and platform 6 52 are bolted with second calipers 53. The two ends of hydraulic cylinder 3 54 are bolted to two sets of second calipers 53 respectively. Hydraulic cylinder 1 6 has its lower end welded to the top of the steel beam frame 1. The telescopic end of hydraulic cylinder 1 6 is connected to the first working platform 3. Climbing assembly 7 is used to assist workers in climbing to the first working platform 3, the second working platform 4, and the third working platform 5. Four moving mechanisms 8 are symmetrically arranged in pairs at the bottom of the two storage boxes 2. Explosion-proof control cabinet 9 is bolted to the storage box 2.

[0037] Hydraulic cylinders 6, 44, and 54 are existing hydraulic telescopic devices, which will not be described in detail. The storage box 2 is used to store the equipment needed for construction. Hydraulic cylinder 6 can adjust the height of the first working platform 3. Hydraulic cylinder 44 can extend and retract, allowing platform 42 to slide along the surface of platform 3 41. Similarly, hydraulic cylinder 54 can allow platform 6 52 to slide along the surface of platform 5 51. This allows for adjustment of the trolley's working dimensions in both the vertical and horizontal directions according to the different widths of the tunnel lining, flexibly adapting to changes in tunnel cross-sectional dimensions and complex and ever-changing construction environments, thereby improving overall construction efficiency. At the same time, the adjustment process is relatively precise and stable.

[0038] Preferably, the number of the first working platform 3, the second working platform 4, and the third working platform 5 are one, two, and two respectively. The first working platform 3 is set on the top of the steel beam frame 1, and the two second working platforms 4 and the two third working platforms 5 are symmetrically set on the left and right sides of the steel beam frame 1. The hydraulic cylinder 6, the hydraulic cylinder 44, the second guardrail 45, and the moving mechanism 8 can be automatically adjusted through the control buttons of the explosion-proof control cabinet 9.

[0039] Preferably, the first working platform 3 includes a first platform 31 and two second platforms 32. The first platform 31 is higher than the second platform 32. A staircase 33 is provided between the first platform 31 and the two second platforms 32. The bottom surface of the first platform 31 is fixedly connected to the top of the hydraulic cylinder 6.

[0040] Specifically, by setting up platform 1 31 and platform 2 32, the trolley can be further adapted to the arc-shaped structure at the top of the tunnel.

[0041] Preferably, tabletops 31, 32, 41, 42, 51 and 6 are all provided with anti-slip protrusions 10.

[0042] Preferably, symmetrical first guardrails 34 are fixedly connected to the front and rear sides of platform 31, platform 32 and staircase 33. Two retractable second guardrails 45 are provided between platform 31 and platform 42, and the two second guardrails 45 are symmetrically arranged on the front and rear sides of platform 31 and platform 42. Two retractable third guardrails 55 are provided between platform 51 and platform 62, and the two third guardrails 55 are symmetrically arranged on the front and rear sides of platform 51 and platform 62.

[0043] Preferably, the climbing assembly 7 includes six straight ladders 71, which are bolted to two platform 2 32, two platform 3 41 and two platform 51 respectively. Each straight ladder 71 has anti-slip stripes 72 on its steps, and symmetrical guardrails 73 are fixedly connected to both sides of each straight ladder 71 in the width direction. Each straight ladder 71 has an anti-slip steel plate 74 on its top.

[0044] The retractable second guardrail 45 and third guardrail 55 are existing technologies. They can adaptively extend and retract as the platform 3 41 and platform 42 and platform 51 and platform 6 52 extend and slide. The first guardrail 34, second guardrail 45, third guardrail 55 and guardrail 73 provide enclosure and auxiliary support. Furthermore, the anti-slip protrusions 10, anti-slip stripes 72 and anti-slip steel plates 74 provide anti-slip function to ensure the safety of construction workers operating on the platform.

[0045] Preferably, the moving mechanism 8 includes a bridge body 81 and a drive shaft 82. The top of the middle part of the bridge body 81 is fixedly connected to the bottom surface of the storage box 2. Tires 83 are bolted to both ends of the drive shaft 82. A driving component 84 is provided on the bridge body 81. The driving component 84 is used to drive the drive shaft 82 to rotate inside the bridge body 81. Anti-slip patterns 85 are evenly distributed on the outer surface of the tires 83. The driving component 84 can also be automatically adjusted by the control buttons of the explosion-proof control cabinet 9.

[0046] The drive component 84 is a prior art technology and can be selected as a motor and gear set, or a motor and chain set, thereby enabling the drive shaft 82 to rotate within the bridge body 81.

[0047] Specifically, through the setting of the explosion-proof control cabinet 9 and the automatic control of hydraulic cylinder 6, hydraulic cylinder 44, second guardrail 45, and drive component 84 through preset programs, the operator can remotely control the lifting, translation, and platform size adjustment of the trolley within a safe area, which greatly reduces the risk of manual intervention and ensures the accuracy and safety of operation.

[0048] Preferably, it also includes two sets of inclined support brackets 11, which are set at an angle. One set of inclined support brackets 11 is welded between the platform 3 41 and the steel beam frame 1, and the other set of inclined support brackets 11 is welded between the platform 51 and the storage box 2.

[0049] The diagonal brace 11 can further enhance the support strength of platform 3 41 and platform 51.

[0050] Preferably, the steel beam frame 1 is welded from I-beams.

[0051] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0052] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0053] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tunnel lining retractor trolley characterised in that, include: A steel beam frame, with storage boxes welded to both the left and right sides of the bottom of the steel beam frame; The first working platform, the second working platform, and the third working platform are arranged sequentially from top to bottom on the steel beam frame. The second working platform includes a platform three and a hydraulic cylinder two. The inner side of the platform three is welded to the steel beam frame. A platform four is slidably sleeved on the platform three. The bottom surfaces of both the platform three and the platform four are bolted with first calipers. The two ends of the hydraulic cylinder two are respectively installed with two sets of first caliper bolts. The third working platform includes a platform five and a hydraulic cylinder three. The inner side of the platform five is welded to the storage box. A platform six is ​​slidably sleeved on the platform five. The bottom surfaces of both the platform five and the platform six are bolted with second calipers. The two ends of the hydraulic cylinder three are respectively installed with two sets of second caliper bolts. Hydraulic cylinder one, the lower end of which is welded to the top of the steel beam frame, and the telescopic end of which is connected to the first working platform; Climbing components, which are used to assist workers in climbing to the first working platform, the second working platform, and the third working platform; Four moving mechanisms are arranged symmetrically in pairs at the bottom of the two storage boxes; An explosion-proof control cabinet, which is bolted to a storage box.

2. A tunnel lining retractor trolley according to claim 1, characterised in that, The number of the first working platform, the second working platform, and the third working platform are one, two, and two respectively. The first working platform is set on the top of the steel beam frame, and the two second working platforms and the two third working platforms are symmetrically arranged on the left and right sides of the steel beam frame. The hydraulic cylinder one, hydraulic cylinder two, the second guardrail, and the moving mechanism can be automatically adjusted through the control buttons of the explosion-proof control cabinet.

3. The tunnel lining retractor trolley of claim 1, wherein, The first working platform includes a platform one and two platform two. Platform one is higher than platform two. A staircase is provided between platform one and the two platform two. The bottom surface of platform one is fixedly connected to the top of hydraulic cylinder one.

4. A tunnel lining retractor trolley according to claim 3, characterised in that, All of the following platforms are provided with anti-slip protrusions: platform one, platform two, platform three, platform four, platform five, and platform six.

5. A tunnel lining retractor trolley according to claim 3, characterised in that, Symmetrical first guardrails are fixedly connected to the front and rear sides of the platform one, platform two, and the stairs. Two retractable second guardrails are provided between platform three and platform four, and the two second guardrails are symmetrically arranged on the front and rear sides of platform three and platform four. Two retractable third guardrails are provided between platform five and platform six, and the two third guardrails are symmetrically arranged on the front and rear sides of platform five and platform six.

6. A tunnel lining retractor trolley according to claim 3, characterised in that, The climbing assembly includes six straight ladders, which are bolted to two platform two, two platform three, and two platform five respectively. Each ladder has anti-slip stripes on its steps, symmetrical guardrails are fixedly connected to both sides of each ladder in the width direction, and an anti-slip steel plate is provided on the top of each ladder.

7. A tunnel lining retractor trolley according to claim 2, characterised in that, The moving mechanism comprises a bridge body and a transmission shaft, the top of the middle part of the bridge body is fixedly connected to the bottom surface of the receiving box, the two ends of the transmission shaft are both bolted with tires, a driving member is arranged on the bridge body, the driving member is used for driving the transmission shaft to rotate in the bridge body, and the outer surfaces of the tires are uniformly provided with anti-skid patterns.

8. The tunnel lining retractor trolley of claim 1, wherein, The two groups of inclined support frames are arranged obliquely, one group of the inclined support frames is welded between the third table plate and the steel beam skeleton, and the other group of the inclined support frames is welded between the fifth table plate and the receiving box.

9. A tunnel lining retractor trolley according to any one of claims 1 to 8, wherein, The steel beam skeleton is welded by using an I-shaped steel.