Adjustable gauge rod

Abstract

The application relates to an adjustable track gauge rod, which belongs to the technical field of track fixing devices and comprises a pull rod and supporting plates arranged on the two sides of the pull rod, the supporting plates are provided with clamping parts for clamping the outer sides of tracks, the inner sides of the supporting plates are provided with fixing parts, installation spaces are formed between the fixing parts and the inner sides of the tracks, adjusting assemblies are arranged in the installation spaces and are connected to the fixing parts, and the adjusting assemblies are used for clamping the tracks from the inner sides together with the fixing parts. Through the cooperation of the clamping parts and the adjusting assemblies, the track gauge rod can realize synchronous clamping and fixing of the inner and outer sides of the tracks, can overcome the limitation that the traditional track gauge rod needs to pass through the bottom of the track, can be applied to narrow space working conditions such as shield tunnels, the clamping force distribution of the track gauge rod structure on the inner and outer sides of the track is balanced, the stability and reliability of track gauge keeping are improved, and meanwhile, the adjusting assemblies can make the track gauge rod adapt to different specifications of tracks through adjustment.

Description

Technical Field

[0001] This application relates to the field of track fixing device technology, and in particular to an adjustable gauge rod. Background Technology

[0002] During shield tunnel construction, horizontal transport tracks are typically laid close to the inner wall of tunnel segments, resulting in extremely limited installation space between the bottom of the track and the inner side of the segments. Gauge rods are crucial components used to fix the track spacing and prevent track creep. Traditional gauge rod structures require their tie rods to pass through the bottom of the track, which limits their application in the confined space of shield tunnels.

[0003] To accommodate this confined space, existing technologies have proposed new gauge rods, including support plates on both sides of the track and tie rods connecting the two support plates, thus avoiding the need to pass under the track. However, these existing solutions still have significant drawbacks in practical applications: First, in terms of fixing methods, some gauge rods can only fix the track through the outer side or a single side, resulting in uneven locking force. Under the vibration load of long-term train operation, it is difficult to reliably maintain track gauge stability, posing a risk of loosening. Second, in terms of structure and adjustability, their fixing components are mostly integral structures or rely on complex multi-locking systems, lacking simple and effective adjustment mechanisms, making them unsuitable for different track specifications. Utility Model Content

[0004] To address the problems of uneven locking force, inconvenient structural adjustment, and low installation efficiency in confined spaces associated with gauge rods, this application provides an adjustable gauge rod.

[0005] The adjustable gauge rod provided in this application adopts the following technical solution: An adjustable gauge rod includes a pull rod and support plates on both sides of the pull rod. The support plates are provided with a locking part for holding the outer side of the track, and a fixing part is provided on the inner side of the support plates, forming an installation space between the fixing part and the inner side of the track. It also includes an adjustment component, which is located within the installation space and connected to the fixing part, for working together with the fixing part to hold the track from the inside.

[0006] By adopting the above technical solution, the synergistic cooperation of the snap-fit ​​part, the fixing part, and the adjustment component achieves the purpose of clamping and fixing from both the inside and outside of the track simultaneously, avoiding the structural limitation of traditional gauge rods that must pass through the bottom of the track. This makes it particularly suitable for working conditions with limited bottom space, such as shield tunnels. The structure forms a complete force closed loop with balanced clamping force, greatly improving the stability and reliability of gauge maintenance. At the same time, the setting of the adjustment component provides a basis for achieving universality to adapt to different track specifications, solving the problem of poor adaptability caused by the fixed structure in existing technologies.

[0007] In one specific implementation, the adjustment component includes a limiting block and an adjustment pad, the adjustment pad being disposed between the fixing part and the limiting block, and the limiting block being used to hold the inner side of the track.

[0008] By adopting the above technical solution, the adjustment component is specified as a split structure consisting of a limiting block and an adjustment pad. By changing the thickness or number of the adjustment pads placed between the fixing part and the limiting block, the effective clamping length of the entire inner fixing component can be adjusted, thereby adapting to the installation requirements of tracks of different widths.

[0009] In one specific implementation, the limiting block and the locking portion are respectively provided with a locking slot that matches the contour of the track.

[0010] By adopting the above technical solution and utilizing the bayonet design that matches the track profile, the contact area between the limiting block and the locking part and the track is maximized, the force is more uniform, stress concentration caused by point contact or line contact is effectively avoided, and damage to the track is prevented under long-term vibration. At the same time, it can also provide greater friction and enhance the stability of clamping.

[0011] In one specific implementation, the contact surface between the limiting block and / or the locking part and the track is provided with an anti-slip structure.

[0012] By adopting the above technical solutions and setting anti-slip structures (such as knurling, serrations, rubber layers, etc.), the static friction between the gauge rod and the track surface is increased, thereby effectively resisting the lateral vibration and impact brought about by train operation, preventing relative slippage between the gauge rod and the track, ensuring the long-term stability of the gauge, and further improving the anti-loosening ability.

[0013] In one specific implementation, the adjusting pad and the limiting block are detachably connected to the fixing part via a quick-locking component.

[0014] By adopting the above technical solution and using a detachable connection method, the installation, replacement and adjustment of the adjusting pad and the limit block become extremely convenient. In actual operation, the corresponding components can be quickly combined and fixed according to the specifications of the track on site, which greatly improves the installation efficiency and adaptability to different working conditions, and also facilitates later maintenance and component replacement.

[0015] In one specific implementation, the quick-locking component includes a pin or screw, and the quick-locking component passes through the fixing part, the adjusting pad, and the limiting block in sequence for fixation.

[0016] By adopting the above technical solution and using through-type pins or screws, the fixing part, adjusting pad and limiting block can be firmly connected into a whole, with a compact structure and high connection strength, laying the foundation for rapid installation.

[0017] In one specific implementation, the adjusting pad includes multiple pads of different thicknesses.

[0018] By adopting the above technical solution and providing a series of standard pads of different thicknesses, users are provided with a direct and reliable means of adjustment. Users can choose a single pad or combine them as needed to achieve precise and stepped adjustment of the clamping thickness, ensuring the accuracy and reliability of the fixation, while also facilitating management and retrieval.

[0019] In one specific implementation, the tray is detachably connected to the pull rod.

[0020] By adopting the above technical solution, the detachable connection design of the pallet and the tie rod makes the transportation, storage and on-site installation of the entire gauge rod more flexible. The components can be disassembled to reduce the volume, making them easier to handle, and finally assembled on-site according to the actual gauge, improving the product's portability and engineering adaptability.

[0021] In one specific implementation, the pallet is provided with a mounting part, the end of the pull rod passes through the mounting part, and a nut is threaded onto the pull rod, the nut abutting against both sides of the mounting part.

[0022] By adopting the above technical solution, the detachable connection and position adjustment function between the pallet and the tie rod are realized. After the end of the tie rod passes through the mounting part on the pallet, the assembly is completed by screwing the nut into the threaded section of the tie rod and tightening it. This design allows the pallet to freely adjust its installation position in the axial direction of the tie rod according to the actual track gauge requirements, thereby flexibly adapting to different track spacings. When disassembly or readjustment is required, simply loosen the nut, making the operation simple.

[0023] In one specific implementation, the tray, the snap-fit ​​part, the fixing part, and the mounting part are integrally formed.

[0024] By adopting the above technical solutions and using an integrated molding process to manufacture key components, the overall structural strength and rigidity of the pallet can be greatly enhanced, avoiding potential weaknesses in welding or bolted connections. At the same time, the number of parts and assembly steps are reduced, thus lowering costs.

[0025] In summary, the beneficial technical effects of this application are as follows: The adjustable gauge rod of this application effectively solves many problems in the prior art through innovative structural design. Its design, in which the outer snap-fit ​​part and the inner adjustment component work together, forms a balanced clamping force on both the inner and outer sides of the track, fundamentally solving the problem of uneven locking force in traditional gauge rods; the modular adjustment pad design allows the gauge rod to quickly adapt to various track specifications through flexible combination of pads of different thicknesses, effectively overcoming the defects of inconvenient structural adjustment; the optimized quick-locking component structure and step-by-step installation scheme significantly improve the installation efficiency in confined spaces, solving the technical bottlenecks of difficult operation and low efficiency in traditional installation methods. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the adjustable gauge rod according to an embodiment of this application.

[0027] Figure 2 It is a cross-sectional view used to show the tray, adjustment components and rails.

[0028] Figure 3 This is a schematic diagram illustrating the structure of an adjustable gauge rod installed inside a tunnel.

[0029] Explanation of reference numerals in the attached drawings: 1. Pull rod; 2. Support plate; 21. Snap-fit ​​part; 22. Fixing part; 23. Mounting part; 3. Mounting space; 4. Adjustment component; 41. Limit block; 42. Adjustment pad; 5. Bayonet; 6. Quick lock; 61. Pin; 7. Nut; 8. Track. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses an adjustable gauge rod, which is applicable, but not limited to, shield tunnels, mine roadways, underground utility tunnels, and other conditions where the space under the track is limited. This adjustable gauge rod is particularly suitable for installation environments where structural limitations prevent traditional gauge rods from passing under the track, thus solving the problem of track fixing in confined spaces.

[0032] Reference Figure 1-3The adjustable gauge rod includes a tie rod 1 and two support plates 2 located on both sides of the tie rod 1. In this embodiment, the tie rod 1 is located between two parallel tracks 8 and is parallel to the sleeper. The two support plates 2 are symmetrically arranged on both sides of the tie rod 1. The main structure of the support plates 2 is horizontal and placed at the bottom of the track 8. In this embodiment, the support plates 2 are key load-bearing components and are preferably made of high-strength steel to ensure sufficient structural strength and durability.

[0033] The support plate 2 and the pull rod 1 are detachably connected. Specifically, the support plate 2 is provided with a mounting part 23, which is vertically set on the main structure of the support plate 2. The mounting part 23 is provided with a through hole, the diameter of which matches the diameter of the pull rod 1, and the gap is controlled within the range of 0.5-1mm, which ensures smooth assembly and avoids excessive gap from affecting positioning accuracy.

[0034] The end of the pull rod 1 passes through the mounting portion 23 of the two side plates 2 in sequence. The two ends of the pull rod 1 are threaded, and four nuts 7 are threadedly connected to the pull rod 1. By tightening the nuts 7 on the threads, the plate 2 is reliably fastened to the pull rod 1. In this embodiment, one nut 7 is provided on each side of each mounting portion 23 to form a two-way locking structure. This double nut 7 configuration not only provides reliable fastening force, but also effectively prevents loosening in a vibration environment.

[0035] By adjusting the position of nut 7 on pull rod 1, the final distance between the two support plates 2 can be controlled, thereby adjusting the track gauge; after adjustment, use a torque wrench to tighten nut 7 to the specified torque to ensure the reliability of the connection.

[0036] On the upper outer side of the tray 2, there is a locking part 21 for holding the outer base of the track 8. The locking part 21 is vertically set on the main structure of the tray 2. In this embodiment, the longitudinal section of the locking part 21 is inverted L-shaped. The locking part 21 is provided with a locking slot 5 that matches the outer contour of the track 8 base, which can stably hook the outer bottom surface of the track 8 and form a reliable outer support point.

[0037] A fixing part 22 is provided on the upper inner side of the tray 2 (i.e. the side facing the center of the track 8). The fixing part 22 is vertically set on the main structure of the tray 2. An installation space 3 is formed between the fixing part 22 and the inner waist of the track 8. This space provides the necessary operating area for adjusting the inner fixing structure.

[0038] An adjustment component 4 is provided within the installation space 3. The adjustment component 4 includes a limiting block 41 and an adjustment pad 42. The adjustment pad 42 is disposed between the fixing part 22 and the limiting block 41. It can precisely adjust the effective clamping length of the inner fixing component by changing its own thickness. In this embodiment, the adjustment pad 42 includes multiple pads of different thicknesses, such as 2mm, 5mm, 8mm, 10mm, etc. The adjustment pad 42 can be used individually or combined and stacked according to the specific specifications of the track 8 on site to achieve precise and stepped adjustment of the clamping thickness.

[0039] The limiting block 41 is located at the innermost side of the adjusting component 4 and is used to directly hold the inner waist surface of the track 8. To ensure uniform force and reliable connection, the longitudinal section of the limiting block 41 is inverted L-shaped. In this embodiment, the limiting block 41 is provided with a slot 5 that matches the inner contour of the base of the track 8, and the slot 5 of the limiting block 41 is opposite to the slot 5 of the locking part 21, holding the inner and outer sides of the track 8 respectively. This contoured slot 5 design significantly increases the contact area and effectively avoids stress concentration caused by point contact or line contact, which protects the surface of the track 8 and provides greater friction.

[0040] To further enhance vibration resistance and prevent loosening, an anti-slip structure is provided on the contact surface between the limiting block 41 and / or the locking part 21 and the track 8. In this embodiment, the contact surfaces of the limiting block 41 and the locking part 21 with the track 8 are all provided with an anti-slip structure. The anti-slip structure can be a machined knurled pattern, a mesh pattern, or an adhesive high-friction coefficient rubber pad. These anti-slip structures can significantly increase the static friction between the anti-slip structure and the surface of the track 8, effectively resisting the lateral vibration and impact generated by the train operation.

[0041] The adjusting pad 42 and the limiting block 41 are detachably connected to the fixing part 22 by the quick-locking member 6. The quick-locking member 6 passes through the fixing part 22, the adjusting pad 42 and the limiting block 41 in sequence for fixing. In this embodiment, the quick-lock component 6 preferably adopts a pin 61. A series of coaxial through holes are provided at the corresponding positions of the fixing part 22, the adjusting pad 42 and the limiting block 41. During installation, after the adjusting pad 42 and the limiting block 41 of the selected thickness are placed in place, the pin 61 is simply inserted into the through hole to firmly connect the three into a whole.

[0042] To ensure safe use, a reliable anti-loosening structure is provided at the end of the pin 61. When using a cotter pin, inserting it and separating its tail will effectively prevent it from coming off. If an elastic cylindrical pin is used, its own elastic tension force can achieve reliable anti-loosening. This pin-type connection structure can achieve quick installation and disassembly and has excellent vibration resistance.

[0043] In other embodiments, the quick-lock component 6 can also be connected by screws. A series of coaxial screw holes are provided at the corresponding positions of the fixing part 22, the adjusting pad 42 and the limiting block 41. During installation, after the adjusting pad 42 and the limiting block 41 of the selected thickness are placed in place, the screws are inserted into the screw holes and threaded together to firmly connect the three into a whole.

[0044] To achieve better structural strength and reliability, the main structure of pallet 2, the snap-fit ​​part 21, the fixing part 22 and the mounting part 23 are manufactured using an integral molding process (such as casting or forging). This manufacturing method can greatly enhance the overall structural strength and rigidity of pallet 2 and avoid the weak points that may exist in welding or bolted connections. At the same time, it reduces the number of parts and assembly steps, and lowers costs.

[0045] The implementation principle of this application embodiment is as follows: during installation, the operation process of separate independent fixing on each side and finally overall connection is adopted; firstly, the single-sided track 8 is fixed, and the snap-fit ​​part 21 of the side plate 2 is accurately snapped into the outer base of the track 8. Then, according to the specifications of the track 8, the adjustment pads 42 of the appropriate thickness are selected and combined. The adjustment pads 42 and the limiting block 41 are placed in the installation space 3 on the inner side of the fixing part 22 and the track 8 in sequence. Then, the pin 61 is used as the quick lock part 6, which passes through the coaxial through hole on the fixing part 22, the adjustment pad 42 group and the limiting block 41 in sequence. The anti-detachment structure is installed to ensure reliable locking, so as to realize the firm clamping of the track 8 on this side between the snap-fit ​​part 21 and the limiting block 41. After completing the installation on one side, fix the track 8 on the other side according to the same process. Use a spirit level to check the installation height of the two support plates 2 to ensure that they are on the same horizontal plane. After both support plates 2 are fixed independently, perform the connection operation of the tie rod 1. First, pre-install two nuts 7 on the tie rod 1. Then, pass the two ends of the tie rod 1 through the mounting parts 23 of the two support plates 2 in sequence. Then, install the remaining two nuts 7. Control the track gauge by adjusting the position of the nuts 7. Finally, use a torque wrench to complete the final tightening according to the specified torque value, so that the nuts 7 are tightly against both sides of the mounting parts 23 of the support plate 2, forming a stable two-way locking structure.

[0046] This application utilizes the synergistic effect of the outer snap-fit ​​part 21, the inner fixing part 22, and the adjusting component 4 on the support plate 2 to form symmetrical clamping forces on both the inner and outer sides of the track 8, completely solving the problem of uneven locking force caused by unilateral force application in traditional gauge rods, and significantly improving the stability of gauge maintenance; the innovative modular adjusting pad 42 design allows the gauge rod to be adapted to different specifications of track 8 through the flexible combination of standardized pads, greatly improving the product's versatility and on-site adaptability; the optimized quick-locking part 6 and quick-locking pin 61 enable the quick assembly and disassembly of the adjusting component 4, combined with the installation process of fixing the support plate 2 first and then connecting the tie rod 1, effectively overcoming the technical difficulty of low installation efficiency in confined spaces such as shield tunnels.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable gauge rod, characterized in that: It includes a pull rod (1) and a support plate (2) on both sides of the pull rod (1). The support plate (2) is provided with a locking part (21) for holding the outside of the track (8). The inner side of the support plate (2) is provided with a fixing part (22). An installation space (3) is formed between the fixing part (22) and the inner side of the track (8). It also includes an adjustment component (4), which is located in the installation space (3) and connected to the fixing part (22) for using together with the fixing part (22) to hold the track (8) from the inside.

2. The adjustable gauge rod according to claim 1, characterized in that: The adjustment component (4) includes a limiting block (41) and an adjustment pad (42). The adjustment pad (42) is located between the fixing part (22) and the limiting block (41). The limiting block (41) is used to hold the inner side of the track (8).

3. The adjustable gauge rod according to claim 2, characterized in that: The limiting block (41) and the locking part (21) are respectively provided with a locking slot (5) that matches the contour of the track (8).

4. The adjustable gauge rod according to claim 2, characterized in that: The contact surfaces of the limiting block (41) and / or the locking part (21) with the track (8) are provided with anti-slip structures.

5. The adjustable gauge rod according to claim 2, characterized in that: The adjusting pad (42) and the limiting block (41) are detachably connected to the fixing part (22) via a quick-locking member (6).

6. The adjustable gauge rod according to claim 5, characterized in that: The quick-locking component (6) includes a pin (61) or a screw, and the quick-locking component (6) passes through the fixing part (22), the adjusting pad (42), and the limiting block (41) in sequence for fixing.

7. The adjustable gauge rod according to claim 2, characterized in that: The adjusting pad (42) includes multiple pads of different thicknesses.

8. The adjustable gauge rod according to claim 1, characterized in that: The tray (2) is detachably connected to the pull rod (1).

9. The adjustable gauge rod according to claim 8, characterized in that: The pallet (2) is provided with a mounting part (23), the end of the pull rod (1) passes through the mounting part (23), and a nut (7) is threaded onto the pull rod (1), the nut (7) abutting against both sides of the mounting part (23).

10. The adjustable gauge rod according to claim 9, characterized in that: The tray (2), the snap-fit ​​part (21), the fixing part (22), and the mounting part (23) are integrally formed.

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