Fastener device at interval flood gate for urban rail transit
By using components such as track bed plates, gauge blocks, and locking assemblies at the floodgates, the problem of insufficient rail support caused by excessive spacing between the front and rear sleepers of the floodgates is solved, achieving rail stability and vibration resistance, and making it suitable for various scenarios.
Patent Information
- Application Number
- CN202520198022.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-08
AI Technical Summary
In the existing technology, due to the special structure of floodgates, the distance between the front and rear sleepers of the floodgate is too large, and ordinary sleepers and fasteners cannot be installed smoothly. As a result, the rails lack vertical and lateral support, which easily leads to deformation and fatigue.
A fastening device for flood-proof gates in urban rail transit sections is adopted, including a track bed plate, a gauge block, a locking component, and a positioning component. It is fixed by screws, mortar layers, or anchoring adhesive, and combined with rubber pads and spring washers to provide lateral and vertical support forces, thereby adjusting the gauge and elevation of the rails.
It effectively provides the lateral and longitudinal support required for the rails, restrains rail displacement, reduces vibration, ensures rail stability, and is suitable for column-type track bed joints at floodgates and in depots, with a wide range of applications.
Smart Images
Figure CN223781320U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail fasteners and fittings, and in particular to a fastener device for flood-proof gates in urban rail transit sections. Background Technology
[0002] Floodgates are installed at the ends of subway stations and tunnel interfaces or sections of the river crossing section to prevent river water from rushing into subway stations and causing the accident to escalate if a tunnel breaks in the event of a sudden accident. In case of an accident, the gates can be closed in an emergency to seal off the river crossing tunnel and protect the safety of people and equipment in the subway station.
[0003] The floodgate system consists of two parts: mechanical equipment and control system. The mechanical equipment of the floodgate system includes: gate leaf, gate groove embedded parts, hoist, locking device, etc. The gate leaf adopts a flat sliding steel gate, and the hoist adopts a double hook electric hoist.
[0004] In existing technologies, due to the special structural design of floodgates, the floodgate threshold is relatively wide (over 1000mm), resulting in an excessively large distance between the front and rear sleepers (usually exceeding 1400mm), while the sleeper spacing on main lines is generally controlled at 590-690mm. Because of the floodgate's door slot, ordinary sleepers and fasteners cannot be installed smoothly. Long distances without fasteners result in insufficient vertical support and lateral restraint on the rails, making them highly susceptible to deformation and fatigue. Therefore, a fastener device for floodgates in urban rail transit sections is proposed to solve these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a fastening device for flood-proof gates in urban rail transit, aiming to improve the problem that ordinary fasteners at flood-proof gates cannot be installed smoothly, resulting in excessive sleeper spacing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A fastening device for flood-proof gates in urban rail transit includes a track bed slab, two gauge blocks fixedly connected to the top of the track bed slab, a rail under-rail rubber pad fixedly connected to the top of the track bed slab, a rail mounted on the top of the rail under-rail rubber pad, two positioning components for fixing the gauge blocks to a fixed position installed on the inner wall of the track bed slab, and a locking component for locking the rail fixedly connected to the top of the gauge blocks.
[0008] As a further description of the above technical solution:
[0009] The positioning component includes a screw, to which a mortar layer or anchoring adhesive is fixedly connected, and the mortar layer or anchoring adhesive is fixedly connected to the inner wall of the track bed slab.
[0010] As a further description of the above technical solution:
[0011] The locking assembly includes a spring washer, the bottom of which is fixedly connected to a pressure plate, the bottom of which contacts the top of the gauge block.
[0012] As a further description of the above technical solution:
[0013] The screw is externally threaded with a nut, the bottom of which contacts the top of the spring washer.
[0014] As a further description of the above technical solution:
[0015] The gauge block has a slot inside, the outside of the screw is in contact with the inner wall of the slot, and the outside of the two gauge blocks is in contact with the outside of the rail.
[0016] As a further description of the above technical solution:
[0017] The pressure plate has a slot inside, and the outside of the screw is in contact with the inner wall of the slot.
[0018] This utility model has the following beneficial effects:
[0019] In this invention, the patented fastener is small in size, facilitating effective installation in the gate slot. It effectively provides the lateral and longitudinal support required for the rails during service, restrains the lateral and vertical displacement of the rails at floodgates, and effectively reduces rail vibration at this location. Furthermore, this type of product is not only used for fasteners at floodgates but can also be widely used for fasteners at column-type track bed joints in depots and railway yards. It can also be used for temporary fixing of long spare rails in sections. Its application scenarios are quite broad. Attached Figure Description
[0020] Figure 1 This is a cross-sectional view of a fastener device for a flood-proof gate in urban rail transit, as proposed in this utility model.
[0021] Figure 2 This is a schematic diagram of the longitudinal side of a fastener device for a flood-proof gate in urban rail transit, as proposed in this utility model.
[0022] Figure 3 This is a schematic diagram of the horizontal side of a fastener device for a flood-proof gate in urban rail transit, as proposed in this utility model.
[0023] Figure 4 This is a schematic diagram of the top structure of the fastener device at the section flood prevention gate of urban rail transit proposed in this utility model.
[0024] Legend:
[0025] 1. Mortar layer or anchoring adhesive; 2. Track slab; 3. Rail; 4. Track gauge block; 5. Bearing plate; 6. Screw; 7. Under-rail rubber pad; 8. Spring washer; 9. Nut. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a fastening device for flood-proof gates in urban rail transit, including a track bed slab 2. Two gauge blocks 4 are fixedly connected to the top of the track bed slab 2, and the gauge of the rails 3 is adjusted by replacing the gauge blocks 4 with different thicknesses. A rail-mounted rubber pad 7 (as shown in the attached diagram) is fixedly connected to the top of the track bed slab 2. Figure 1 The top of the rubber pad 7 under the rail is fitted with a steel rail 3. Before installing the fasteners, the concrete surface under the rail should be smoothed with polymer cement mortar. The finished surface height should be consistent with the steel plates of the flood-proof thresholds on both sides, and the relative rail surface elevation should be -190mm.
[0028] Two positioning components are installed on the inner wall of the track bed slab 2 to fix the track gauge block 4. The positioning components include a screw 6, and the screw 6 is externally fixed with a mortar layer or anchoring adhesive 1. The mortar layer or anchoring adhesive 1 is externally fixed to the inner wall of the track bed slab 2. The track bed is cored using a water drill with a core diameter of 28mm and a core depth of 300mm. The mortar or anchoring adhesive is implanted into the core hole, and an M20×370 anchor rod is implanted into the hollow core, ensuring that the exposed length of the screw 6 is not less than 90mm. After the mortar (anchoring adhesive) has solidified, the under-rail rubber pad 7, track gauge block 4, bearing plate 5, spring washer 8, nut 9, etc. are installed.
[0029] Reference Figure 1 and Figure 2 The top of the gauge block 4 is fixedly connected to a locking assembly for locking the rail 3. The locking assembly includes a spring washer 8, and the bottom of the spring washer 8 is fixedly connected to a bearing plate 5 (as shown in the attached document). Figure 1The bottom of the pressure plate 5 contacts the top of the gauge block 4. The pressure plate 5, spring washer 8, and rubber pad provide partial elasticity to offset the energy generated by fastener vibration. The screw 6 is externally threaded with a nut 9, the bottom of which contacts the top of the spring washer 8 (as shown in the attached diagram). Figure 1 The elevation of rail 3 is adjusted by adding or removing the rail height adjustment pad and adjusting the threads of nut 9.
[0030] The gauge block 4 has a slot inside, and the outer side of the screw 6 contacts the inner wall of the slot. Rotating the nut 9 loosens the screw 6, allowing the gauge block 4 to be repositioned. The outer sides of the two gauge blocks 4 contact the outer side of the rail 3. Before construction, the geometry of the rail 3 is adjusted to determine the corresponding positions of the rail 3 and the inner and outer screws 6. The geometry of the rail 3 is finely adjusted, and the bolts are coated with oil for rust prevention. The bearing plate 5 has a slot inside, and the outer side of the screw 6 contacts the inner wall of the slot. The screw 6, nut 9, spring washer 8, bearing plate 5, gauge block 4, and rubber pad ensure the vertical constraint of the rail 3.
[0031] Working Principle: The fastener is a plate-type fastener, composed of a gauge block 4 (nylon material), a pressure plate 5, a screw 6, a rubber pad under the rail 7, a spring washer 8, and a nut 9. Two screws 6 and the gauge block 4 ensure the lateral constraint of the rail 3. The gauge block 4 can be customized with different thicknesses to meet different track gauge requirements on site. The screw 6, nut 9, spring washer 8, pressure plate 5, gauge block 4, and rubber pad ensure the vertical constraint of the rail 3. The pressure plate 5, spring washer 8, and rubber pad provide some elasticity to offset the energy generated by fastener vibration. The elevation of the rail 3 can be adjusted by adding or removing the height adjustment pad under the rail and adjusting the threads of the nut 9; the track gauge of the rail 3 can be adjusted by replacing the gauge block 4 with different thicknesses, making maintenance relatively simple. Furthermore, due to the small size of the fastener, it is located entirely within the groove of the rail 3 in the door leaf, and will not affect the closure of the door leaf.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 fastener device for an interval flood-proof door for urban rail transit, comprising a track bed plate (2), characterized in that: The top of the track bed plate (2) is fixedly connected with two gauge blocks (4), the top of the track bed plate (2) is fixedly connected with a rail under rubber pad plate (7), the top of the rail under rubber pad plate (7) is installed with a steel rail (3), the inner wall of the track bed plate (2) is installed with two positioning assemblies for fixing the position of the gauge block (4), the top of the gauge block (4) is fixedly connected with a locking assembly for locking the steel rail (3).
2. The fastener device at the interval flood prevention door of urban rail transit according to claim 1, characterized in that: The positioning assembly comprises a screw rod (6), the outer part of the screw rod (6) is fixedly connected with a mortar layer or anchor adhesive (1), and the outer part of the mortar layer or anchor adhesive (1) is fixedly connected to the inner wall of the track bed plate (2).
3. The fastener device at the interval flood prevention door of urban rail transit according to claim 2, characterized in that: The locking assembly comprises a spring washer (8), the bottom of the spring washer (8) is fixedly connected with a pressure receiving piece (5), and the bottom of the pressure receiving piece (5) is in contact with the top of the gauge block (4).
4. The fastener device at the interval flood prevention door of urban rail transit according to claim 3, characterized in that: The outer part of the screw rod (6) is threadedly connected with a nut (9), and the bottom of the nut (9) is in contact with the top of the spring washer (8).
5. The fastener device at the interval flood prevention door of urban rail transit according to claim 4, characterized in that: The inner part of the gauge block (4) is provided with a notch, the outer part of the screw rod (6) is in contact with the inner wall of the notch, and the outer parts of the two gauge blocks (4) are in contact with the outer part of the steel rail (3).
6. The fastener device at the interval flood prevention door of urban rail transit according to claim 5, characterized in that: The inner part of the pressure receiving piece (5) is provided with a slot, and the outer part of the screw rod (6) is in contact with the inner wall of the slot.