Detachable shield construction walkway plate support device suitable for duct pieces with different diameters

Abstract

The utility model discloses a detachable shield construction walkway plate support device suitable for duct pieces with different diameters, which is characterized by comprising a first group of adjustable vertical rods, a second group of cross rods, a third group of adjustable inclined rods, a first group of adjustable fixed ends and a second group of adjustable fixed ends, wherein the first group of adjustable vertical rods comprises an upper end vertical rod, a lower end vertical rod and a connecting piece; the second group of cross rods comprises horizontal cross rods and vertical connecting rods; the third group of adjustable inclined rods comprises an upper-end inclined rod and a lower-end inclined rod; one end of the first group of adjustable fixed ends is fixedly connected with one side of the connecting vertical rod through a bolt, and the other end is connected with a segment bolt in a tunnel in a matched manner; one end of the second group of adjustable fixed ends is connected with the bottom end of the lower end vertical rod, and the other end is matched and connected with a duct piece bolt in the tunnel. The device is easy to mount and dismount and convenient to transport; the structure is simple, different duct piece tunnels can be adjusted, and the applicability is high; and a modular design is adopted, so that damaged rod pieces are convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of shield tunneling walkway support devices. More specifically, this utility model relates to a detachable shield tunneling walkway support device suitable for tunnel segments of different diameters. Background Technology

[0002] During tunnel boring machine (TBM) construction, pedestrian walkways are typically created to ensure safety and facilitate worker access. These walkways are typically paved with walkway slabs to support normal operations. This necessitates the use of walkway slab support systems, which are securely connected to the tunnel segment bolts. Current TBM walkway slab support systems are designed for a specific type of tunnel segment, and the connections between components are welded. Disassembly and transportation are relatively cumbersome. Furthermore, for tunnel segments of different diameters, appropriate dimensions must be redesigned based on the bolt positions to meet construction requirements. Therefore, there is a need to develop a detachable walkway slab support system suitable for tunnel segments of varying diameters. This system would address the problems of existing walkway slab support systems being non-disassemblyable, cumbersome to transport, and requiring redesign for different diameter segments. Utility Model Content

[0003] In order to achieve these objectives and other advantages of the present invention, a preferred embodiment of the present invention provides a detachable shield tunneling walkway support device suitable for tunnel segments of different diameters, comprising a first set of adjustable vertical rods, a second set of horizontal rods, a third set of adjustable diagonal rods, a first set of adjustable fixed ends, and a second set of adjustable fixed ends.

[0004] The first set of adjustable vertical rods includes an upper vertical rod, a lower vertical rod, and a connector. The connector is welded and fixed to the top of the upper vertical rod. The lower end of the upper vertical rod has multiple bolt holes, and the upper and lower ends of the lower vertical rod also have multiple bolt holes. The bottom end of the upper vertical rod can be movably inserted into the top of the lower vertical rod. By inserting bolts into the bolt holes on the upper and lower vertical rods, the connection between the upper and lower vertical rods is achieved. The length of the first set of adjustable vertical rods can be adjusted by selecting different bolt hole positions. The bottom end of the lower vertical rod is fixedly connected to the second set of adjustable fixed ends using the first set of bolts.

[0005] The second set of crossbars includes a horizontal crossbar and a vertical connecting rod. One end of the horizontal crossbar is connected to the first set of adjustable fixed ends, and the other end is bolted to the connecting piece. The bottom end of the vertical connecting rod is welded to the other end of the horizontal crossbar. Multiple bolt holes are provided on the side of the horizontal crossbar near the first set of adjustable fixed ends.

[0006] The third set of adjustable diagonal rods includes an upper diagonal rod and a lower diagonal rod. The top end of the upper diagonal rod is bolted to the bolt hole of the horizontal crossbar, and the bottom end of the lower diagonal rod is bolted to the bolt hole at the bottom end of the lower vertical rod. The tilt angle of the third set of adjustable diagonal rods can be adjusted by connecting bolt holes at different positions at both ends. Multiple bolt holes are provided on both the upper and lower diagonal rods. The bottom end of the upper diagonal rod can be movably inserted into the top end of the lower diagonal rod. The connection between the upper and lower diagonal rods is achieved by inserting bolts into the bolt holes on the upper and lower diagonal rods. The length of the third set of adjustable diagonal rods can be adjusted by selecting bolt holes at different positions. The bottom end of the lower diagonal rod is hinged to the lower vertical rod.

[0007] The first set of adjustable fixed ends is fixedly connected to one side of the connecting vertical rod with bolts, and the other end is connected to the segment bolts in the tunnel; the second set of adjustable fixed ends is connected to the bottom end of the lower vertical rod with one end, and the other end is connected to the segment bolts in the tunnel.

[0008] According to a preferred embodiment of the present invention, the first set of adjustable vertical rods, the second set of horizontal rods, and the third set of adjustable diagonal rods are all channel steel.

[0009] According to a preferred embodiment of the present invention, a first set of adjustable vertical bars, a second set of horizontal bars, and a third set of adjustable diagonal bars are spliced ​​together to form a triangular structure.

[0010] According to a preferred embodiment of the present invention, both the first set of adjustable fixed ends and the second set of adjustable fixed ends are ear plates.

[0011] According to a preferred embodiment of the present invention, a protective railing made of square tube is inserted into the top end of the vertical connecting rod.

[0012] This utility model has at least the following advantages: it is easy to install and dismantle, and convenient to transport; it has a simple structure, can be adjusted for different segment tunnels, and is highly applicable; it adopts a modular design, making it easy to replace damaged members.

[0013] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the shield tunneling walkway support device in this utility model.

[0015] Figure 2 This is a schematic diagram of the shield tunneling walkway support device after adjustment. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0018] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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, the above terms should not be construed as a limitation of this utility model.

[0019] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0020] like Figure 1-2 As shown, a preferred embodiment of the present invention provides a detachable shield tunneling walkway support device suitable for tunnel segments of different diameters, including a first set of adjustable vertical rods, a second set of horizontal rods, a third set of adjustable diagonal rods, a first set of adjustable fixed ends 8 and a second set of adjustable fixed ends 12.

[0021] The first set of adjustable vertical rods includes an upper vertical rod 4, a lower vertical rod 5, and a connector 3. The connector 3 is welded and fixed to the top of the upper vertical rod 4. The lower end of the upper vertical rod 4 has multiple bolt holes. The upper and lower ends of the lower vertical rod 5 also have multiple bolt holes. The bottom end of the upper vertical rod 4 can be movably inserted into the top of the lower vertical rod 5. The connection between the upper vertical rod 4 and the lower vertical rod 5 is achieved by inserting bolts into the bolt holes on the upper vertical rod 4 and the lower vertical rod 5. The length of the first set of adjustable vertical rods can be adjusted by selecting different bolt hole positions. The bottom end of the lower vertical rod 5 is fixedly connected to the second set of adjustable fixed ends 12 using the first set of bolts.

[0022] The first set of adjustable vertical rods is one of the key support components of the device, consisting of an upper vertical rod, a lower vertical rod, and connecting parts. The connecting parts are securely welded to the top of the upper vertical rod, providing a stable foundation for subsequent connections with other components. Multiple bolt holes are carefully designed at the lower end of the upper vertical rod, offering various length adjustment options. Similarly, multiple bolt holes are also provided at both the upper and lower ends of the lower vertical rod, allowing the bottom end of the upper vertical rod to flexibly insert into the top end of the lower vertical rod. During actual installation, a secure connection is achieved by precisely inserting bolts into the corresponding bolt holes on the upper and lower vertical rods. Construction personnel can select different bolt hole positions for connection according to the actual height requirements of tunnel segments with different diameters, thus easily achieving precise adjustment of the length of the first set of adjustable vertical rods. It is worth mentioning that the bottom end of the lower vertical rod is fixedly connected to the second set of adjustable fixed ends using the first set of bolts, ensuring the stability of the entire vertical rod structure.

[0023] When encountering tunnel segments of varying diameters, construction workers can flexibly adjust the length of the first set of adjustable vertical rods according to actual working conditions. For example, in tunnel segments with larger diameters, taller vertical rods are needed to support the walkway slabs. In this case, workers can connect the upper vertical rod 4 and the lower vertical rod 5 to a longer length by selecting appropriate bolt holes to meet construction requirements. Conversely, in tunnel segments with smaller diameters, the length of the vertical rods can be shortened. This adjustable design greatly improves the applicability of the device, enabling it to function in tunnel segments of various diameters.

[0024] The second set of crossbars includes a horizontal crossbar 6 and a vertical connecting rod 2. One end of the horizontal crossbar 6 is connected to the first set of adjustable fixed ends 8, and the other end is bolted to the connecting piece 3. The bottom end of the vertical connecting rod 2 is welded to the other end of the horizontal crossbar 6. Multiple bolt holes are provided on the side of the horizontal crossbar 6 near the first set of adjustable fixed ends 8.

[0025] The third set of adjustable diagonal rods includes an upper diagonal rod 9 and a lower diagonal rod 10. The top end of the upper diagonal rod 9 is bolted to the bolt hole of the horizontal crossbar 6, and the bottom end of the lower diagonal rod 10 is bolted to the bolt hole at the bottom of the lower vertical rod 5. The tilt angle of the third set of adjustable diagonal rods can be adjusted by connecting the bolt holes at different positions at both ends. Multiple bolt holes are provided on both the upper diagonal rod 9 and the lower diagonal rod 10. The bottom end of the upper diagonal rod 9 can be movably inserted into the top end of the lower diagonal rod 10. The connection between the upper diagonal rod 9 and the lower diagonal rod 10 is achieved by inserting bolts into the bolt holes on the upper diagonal rod 9 and the lower diagonal rod 10. The length of the third set of adjustable diagonal rods can be adjusted by selecting bolt holes at different positions. The bottom end of the lower diagonal rod 10 is hinged to the lower vertical rod 5.

[0026] The first set of adjustable fixed ends 8 is fixedly connected to one side of the connecting vertical rod 2 with bolts, and the other end is connected to the segment bolts in the tunnel; the second set of adjustable fixed ends 12 is connected to the bottom end of the lower vertical rod 5 with one end, and the other end is connected to the segment bolts in the tunnel.

[0027] One end of the horizontal crossbar connects to the first set of adjustable fixed ends, while the other end is bolted to the connector. This connection method ensures reliability and facilitates disassembly and assembly. The bottom end of the vertical connecting rod is securely welded to the other end of the horizontal crossbar, providing additional support for the entire structure. Multiple bolt holes are also provided on the side of the horizontal crossbar near the first set of adjustable fixed ends. These bolt holes offer various options for subsequent connection to the third set of adjustable diagonal bars, meeting the tilt angle adjustment requirements under different construction conditions.

[0028] In the construction of tunnel segments of varying diameters, the telescopic and rotatable characteristics of the third set of adjustable diagonal braces played a crucial role. When changes in the segment diameter altered the required support angle and length of the walkway slabs, construction workers could quickly adjust the length and tilt angle of the third set of adjustable diagonal braces to adapt to the new construction conditions. This flexible adjustment method not only improved construction efficiency but also ensured the stability and reliability of the walkway slab support system under various working conditions.

[0029] In another technical solution, the first set of adjustable vertical bars, the second set of horizontal bars, and the third set of adjustable diagonal bars are all made of high-quality channel steel. This channel steel undergoes a special heat treatment process, resulting in high strength and stability, capable of withstanding large loads and ensuring the safety of the walkway support device during construction. Simultaneously, the channel steel has good machinability, facilitating bolt hole drilling and welding operations, which improves the efficiency of device fabrication and installation.

[0030] In another technical solution, the first set of adjustable vertical bars, the second set of horizontal bars, and the third set of adjustable diagonal bars are spliced ​​together to form a triangular structure. The triangular structure is characterized by high stability, effectively resisting various external forces and ensuring the stability of the walkway slab support device in complex construction environments. This triangular design allows the device to evenly distribute the load when bearing the weight of construction personnel and materials, avoiding excessive localized stress that could lead to structural deformation or damage.

[0031] In another technical solution, both the first set of adjustable fixed ends 8 and the second set of adjustable fixed ends 12 are ear plates.

[0032] In another technical solution, to further ensure the safety of construction workers, a guardrail 1 made of square tubing is inserted at the top of the vertical connecting rod 2. The guardrail 1 is made of high-strength square tubing, treated with anti-corrosion coating, and possesses high strength and durability, enabling long-term use in harsh construction environments. The height and spacing of the guardrail are strictly designed to conform to ergonomic principles, effectively preventing construction workers from accidentally falling while walking, and providing reliable safety assurance for them.

[0033] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A shield tunneling walkway support device which is disassemblable and suitable for pipe segments of different diameters, characterized in that, The first adjustable vertical rod, the second horizontal rod, the third adjustable inclined rod, the first adjustable fixed end and the second adjustable fixed end are connected by bolts. The first adjustable vertical rod includes an upper end vertical rod, a lower end vertical rod and a connecting piece. The connecting piece is welded to the top end of the upper end vertical rod. The lower end of the upper end vertical rod is provided with a plurality of bolt holes. The upper end and the lower end of the lower end vertical rod are respectively provided with a plurality of bolt holes. The bottom end of the upper end vertical rod is movably inserted into the top end of the lower end vertical rod. The upper end vertical rod and the lower end vertical rod are connected by inserting bolts into the bolt holes on the upper end vertical rod and the lower end vertical rod. The length of the first adjustable vertical rod is adjusted by selecting different bolt holes. The bottom end of the lower end vertical rod is fixedly connected to the second adjustable fixed end by bolts. The second horizontal rod includes a horizontal rod and a vertical connecting rod. One end of the horizontal rod is connected to the first adjustable fixed end. The other end of the horizontal rod is connected to the connecting piece by bolts. The bottom end of the vertical connecting rod is welded to the other end of the horizontal rod. The side of the horizontal rod close to the first adjustable fixed end is provided with a plurality of bolt holes. The third adjustable inclined rod includes an upper end inclined rod and a lower end inclined rod. The top end of the upper end inclined rod is connected to the bolt hole of the horizontal rod by bolts. The bottom end of the lower end inclined rod is connected to the bolt hole of the lower end of the lower end vertical rod by bolts. The two ends of the third adjustable inclined rod are connected by connecting different bolt holes to adjust the inclination angle of the third adjustable inclined rod. The upper end inclined rod and the lower end inclined rod are both provided with a plurality of bolt holes. The bottom end of the upper end inclined rod is movably inserted into the top end of the lower end inclined rod. The upper end inclined rod and the lower end inclined rod are connected by inserting bolts into the bolt holes on the upper end inclined rod and the lower end inclined rod. The length of the third adjustable inclined rod is adjusted by selecting different bolt holes. The bottom end of the lower end inclined rod is hingedly connected to the lower end vertical rod. One end of the first adjustable fixed end is fixedly connected to one side of the connecting vertical rod by bolts. The other end of the first adjustable fixed end is connected to the segment in the tunnel by bolt cooperation.

2. The disassemblable shield tunnel construction walkway support device suitable for different diameter segments according to claim 1, characterized in that, The first adjustable vertical rod, the second horizontal rod and the third adjustable inclined rod are all channel steels.

3. The disassemblable shield tunnel construction walkway support device suitable for different diameter segments according to claim 1, characterized in that, The first adjustable vertical rod, the second horizontal rod and the third adjustable inclined rod are spliced to form a triangular structure.

4. The disassemblable shield tunnel construction walkway support device suitable for different diameter segments according to claim 2, characterized in that, The first adjustable fixed end and the second adjustable fixed end are both ear plates.

5. The disassemblable shield tunnel construction walkway support device suitable for different diameter segments according to claim 1, characterized in that, The top end of the vertical connecting rod is inserted into the square tube to prepare a protective fence.

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