Construction method of roadbed dust prevention device

Abstract

The present invention provides a construction method for a roadbed dust prevention device, the method comprising: laying a plurality of dust-proof boards on both sides of the rails along the driving direction of the line; and fixing both sides and both ends of the dust-proof boards. The present invention is easy to install, can effectively prevent coal ash, sand and dust from entering the ballast, and can easily clean solid particles such as coal ash, sand and dust scattered on the surface of the dust-proof boards.

Description

Technical Field

[0001] The invention relates to railway line protection equipment, in particular to a ballast bed anti-fouling device, and specifically to a construction method of the ballast bed anti-dust device. Background Art

[0002] The roadbed usually refers to the gravel or pebble layer laid on the roadbed, bridge or tunnel, under the rails, sleepers or support blocks. As the foundation of the rails or track frame, these gravels or pebbles are called ballast. The diameter of the ballast blocks is usually 20mm to 70mm. There are gaps and friction between the ballast blocks, which makes the track have a certain elasticity. This elasticity can absorb the impact and vibration of the locomotive and vehicle, and evenly distribute the huge load from the upper part of the sleeper to the roadbed, reducing the deformation of the roadbed, ensuring the smooth operation of the train, and also greatly improving the working conditions of the locomotive and vehicle and the components such as rails and sleepers, and extending the service life of the components such as wheels, rails and sleepers of the locomotive and vehicle. Once the elasticity of the ballast is lost, the load on the sleeper will increase by 50% to 80% compared with the normal state.

[0003] At present, some domestic lines are used as dedicated lines for coal transportation. During use, a large amount of coal ash will be scattered on the roadbed; in addition, some lines are susceptible to sandstorms, and a large amount of sand and dust will accumulate on the roadbed. The coal ash, sand, and dust accumulated on the roadbed will slowly settle into the ballast, affecting the elasticity of the roadbed, causing certain hidden dangers to the safety of the railway line, and even causing train derailment, seriously threatening driving safety. For example, when coal-carrying trains enter and exit tunnels or pass each other in tunnels, the airflow formed will roll the coal powder and some coal blocks in the open car out of the car and scatter them on the roadbed surface in the tunnel. When the coal powder and coal blocks are deposited thickly, they will also bury the rails.

[0004] In order to ensure driving safety, railway workers are required to promptly clean up fine particles such as coal ash, sand and dust accumulated on the track bed. Since these fine particles are directly scattered on the ballast, neither manual cleaning nor track sweeping vehicles can clean up the fine particles on the ballast. Moreover, as time goes by, fine particles such as coal ash, sand and dust will also settle in the ballast, affecting the elasticity of the track bed.

[0005] In order to solve the problem that fine particles scattered on the roadbed are difficult to clean and easily deposited in the ballast, Chinese invention patent CN201611045863.9 discloses a railway roadbed, in which a closed layer is set above the roadbed to block pollution from the outside of the roadbed. The parts except the sleepers are all provided with a closed layer, and the closed layer is attached or bonded to the ballast of the roadbed. First of all, the closed layers of this scheme are distributed in small pieces between the sleepers, and the number is large, which is not easy to lay; and the closed layer is attached or bonded to the ballast of the roadbed, which is easily lifted by the train, causing the train to derail; in addition, the gap between the closed layer and the sleepers and rails will also cause fine particles to deposit in the ballast.

[0006] Chinese invention patent CN201611189806.5 discloses a ballasted roadbed structure with a surface bonding layer, in which a surface bonding material is introduced on the surface of the gravel roadbed to bond the ballast on the surface of the gravel roadbed to form a surface bonding layer, and the surface bonding material is one of polyurethane, epoxy resin, asphalt, acrylic resin, polymer emulsion, and polymer-modified cement-based materials. First, spraying chemical substances such as polyurethane, epoxy resin, asphalt, acrylic resin, polymer emulsion, and polymer-modified cement-based materials has a great impact on the environment; in addition, if the surface bonding layer is damaged, it cannot be replaced and needs to be re-sprayed with chemical substances; and the surface bonding layer formed by the gravel is not flat, which is not conducive to the cleaning of fine particles on the roadbed.

[0007] Therefore, technical personnel in this field urgently need to develop a roadbed dust prevention device that is easy to install and maintain, which can not only comprehensively prevent fine particles from being deposited in the ballast, but also easily clean up the scattered fine particles. Summary of the invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a construction method for a roadbed dust prevention device, which can effectively prevent scattered objects and dust from entering the roadbed gaps and reduce the intensity of railway cleaning work. It also has a certain function of protecting the roadbed to avoid dust accumulation due to long-term use and damage to the roadbed.

[0009] A specific embodiment of the present invention provides a construction method for a roadbed dust prevention device, the method comprising: laying a plurality of dust-proof boards on both sides of the rails along the driving direction of the line; and fixing both sides and both ends of the dust-proof boards.

[0010] In a specific implementation manner of the present invention, after the step of fixing both sides and both ends of the dust shield, the method further comprises: performing insulation testing on the ballast bed.

[0011] In a specific embodiment of the present invention, before the step of laying a plurality of dust shields on both sides of the rails along the direction of travel of the line, the method further comprises: installing a plurality of rail connection assemblies at intervals along the bottom of the rails along the direction of travel of the line; and installing a plurality of transverse fastening assemblies at intervals at the starting end and the ending end where the dust shields are to be laid.

[0012] After the step of installing a plurality of transverse fastening components at intervals at the starting end and the tail end of the dust-proof board to be laid, the method further comprises: installing a transverse fastening component in the middle of the dust-proof board to be laid.

[0013] In a specific embodiment of the present invention, the step of fixing both sides and both ends of the dust shield includes: fixing both sides of the dust shield to the bottom edge of the rail using the rail connecting assembly; and fixing both ends and the middle of the dust shield using the transverse fastening assembly.

[0014] In a specific embodiment of the present invention, before the step of installing a plurality of rail connection assemblies at intervals along the bottom edge of the rail in the driving direction of the line, the method further comprises: leveling the ballast.

[0015] As an embodiment of the present invention, the rail connection assembly specifically includes: a clamp, clamped on the lower edge of the rail bottom; an inverted U-shaped bracket, having an upper side and a lower side, and the lower side is fixed on the clamp; a fastening plate, arranged on the upper surface of the dust shielding plate, used to press the dust shielding plate; a fixing member, used to fix the fastening plate and the dust shielding plate on the upper side; a bottom plate, arranged at the bottom of the rail, used to fix the clamp connecting the two sides of the rail; and an insulating member, arranged at the contact point between the clamp and the rail, used to keep the clamp and the rail insulated.

[0016] In a specific embodiment of the present invention, the clamp has a U-shaped opening for clamping the lower edge of the bottom of the rail, a threaded hole arranged on one side of the U-shaped opening, and a bolt installed in the threaded hole. The opening width of the U-shaped opening is greater than the thickness of the lower edge of the bottom of the rail, and the clamp is fixed to the lower edge of the bottom of the rail or removed from the lower edge of the bottom of the rail by loosening or tightening the bolt.

[0017] In a specific implementation manner of the present invention, the clamp, the inverted U-shaped bracket and the base plate are fixed together by bolts.

[0018] In a specific embodiment of the present invention, the fastening plate has a through hole, and after the fixing member passes through the through hole and the dust-shielding plate, the fastening plate and the dust-shielding plate are fixed to the upper side surface.

[0019] As an embodiment of the present invention, the rail connection assembly specifically includes: a base plate, which is arranged under the rail; a pressure block, which is located above the base plate and the bottom of the rail, and under the action of bolts, the pressure block and the base plate are pressed tightly against the lower edge of the bottom of the rail; an L-shaped bracket, which is arranged on the pressure block and is used to support and fix the dust shielding plate; a fastening pressure plate, which is used to press the dust shielding plate tightly against the L-shaped bracket; a fixing member, which is used to fix the fastening pressure plate and the dust shielding plate on the L-shaped bracket; and an insulating member, which is arranged at the position where the pressure block contacts the rail and the position where the base plate contacts the rail, and is used to maintain insulation between the rail and the pressure block and the base plate.

[0020] In a specific embodiment of the present invention, a portion of the pressing block is pressed on the upper surface of the bottom of the rail, and another portion of the pressing block is pressed on the bottom plate. Under the action of bolts, the pressing block and the bottom plate are tightly pressed against the lower edge of the bottom of the rail.

[0021] In a specific embodiment of the present invention, the fastening plate has a through hole, and after the fixing member passes through the through hole and the dust-shielding plate, the fastening plate and the dust-shielding plate are fixed to the L-shaped bracket.

[0022] As an embodiment of the present invention, the rail connection assembly specifically includes: a U-shaped base support, which is clamped on the bottom of the rail; a first bracket, which is arranged on a U-shaped surface of the U-shaped base support, and is used to support and fix the dust shield on one side of the rail; a second bracket, which is arranged on the other U-shaped surface of the U-shaped base support, and is used to support and fix the dust shield on the other side of the rail; a fastening plate, which is used to press the dust shield on the corresponding bracket; a fixing member, which is used to fix the fastening plate and the dust shield on the corresponding bracket; and an insulating member, which is arranged at the contact position between the U-shaped base support and the rail, and is used to insulate the U-shaped base support and the rail.

[0023] In a specific embodiment of the present invention, the fastening plate has a through hole, and after the fixing member passes through the through hole and the dust-shielding plate, the fastening plate and the dust-shielding plate are fixed on the corresponding brackets.

[0024] In a specific embodiment of the present invention, each U-shaped surface of the U-shaped base has a threaded through hole, and the rail connection assembly also includes a fastening screw having a nut and a screw rod, and the screw rod has an external thread matching the threaded through hole. Under the action of the fastening screw, the U-shaped base is clamped on the bottom of the rail.

[0025] As an embodiment of the present invention, the rail connection assembly specifically includes: a base plate, which is arranged under the rail; a pressure block, which is located above the base plate and the bottom of the rail, and under the action of bolts, the pressure block and the base plate are pressed tightly against the lower edge of the bottom of the rail; a bracket, which is arranged on the pressure block and is used to support and fix the dust shielding plate; a magnet, which is arranged on the upper part of the bracket; a magnet guard plate, which is arranged on the upper part of the magnet and is used to protect and fix the magnet; a magnet suction plate, which is arranged on the upper part of the magnet guard plate and is used to adsorb the magnet; a fastening pressure plate, which is used to press the dust shielding plate tightly on the magnet suction plate; and a fixing member, which is used to fix the fastening pressure plate and the dust shielding plate on the magnet suction plate.

[0026] In a specific implementation manner of the present invention, the base plate, the pressing block and the bracket are all made of plastic or other engineering materials.

[0027] In a specific implementation manner of the present invention, the bracket, the pressing block and the bottom plate are fixed together by bolts.

[0028] In a specific implementation manner of the present invention, the fixing member is a screw, and the screw passes through the fastening plate and the dust shielding plate and is fixed to the magnet suction plate, and the magnet suction plate is adsorbed on the magnet.

[0029] As an embodiment of the present invention, the rail connection assembly specifically includes: a base plate, which is arranged under the rail; a pressure block, which is located above the base plate and the bottom of the rail, and under the action of bolts, the pressure block and the base plate are pressed tightly against the lower edge of the bottom of the rail; a bracket, which is arranged on the pressure block; a bracket steel plate, which is arranged on the upper part of the bracket and is used to fix the dust shielding plate; a fastening pressure plate, which is used to press the dust shielding plate tightly against the bracket steel plate; and a fixing member, which is used to fix the fastening pressure plate, the dust shielding plate and the bracket steel plate to the bracket.

[0030] In a specific implementation manner of the present invention, the base plate, the pressing block and the bracket are all made of plastic or other engineering materials.

[0031] In a specific implementation manner of the present invention, the bracket, the pressing block and the bottom plate are fixed together by bolts.

[0032] In a specific implementation manner of the present invention, the fixing member is a screw, and the screw passes through the fastening plate, the dust shielding plate and the bracket steel plate to be fixed on the bracket.

[0033] As an embodiment of the present invention, the rail connection assembly specifically includes: a supporting pad, used to support the dust shielding plate; an adsorbent, embedded in the supporting pad, used to adsorb the supporting pad on the rail; a fastening plate, used to press the dust shielding plate tightly on the supporting pad; and a fixing member, used to fix the fastening plate and the dust shielding plate on the supporting pad.

[0034] In a specific implementation manner of the present invention, the support block has a side surface and a bottom surface that match the rail, and the support block is tightly attached to the rail through the side surface and the bottom surface.

[0035] In a specific implementation manner of the present invention, the adsorption component specifically includes: a first magnet embedded in the side surface and a second magnet embedded in the bottom surface.

[0036] As an embodiment of the present invention, the fixing member includes a screw and a galvanized steel plate, and the screw fixes the dust shield plate to the galvanized steel plate.

[0037] In a specific implementation manner of the present invention, the support block has a top, side surfaces and a bottom surface that match the rail, and the support block is tightly attached to the rail through the side surfaces and the bottom surface.

[0038] In a specific embodiment of the present invention, the adsorption component specifically includes: a first magnet embedded in the side surface, a second magnet embedded in the bottom surface and a third magnet embedded in the top surface, wherein the first magnet and the second magnet are adsorbed on the rail, and the galvanized steel plate is adsorbed on the third magnet.

[0039] As an embodiment of the present invention, the transverse fastening component is specifically a fastening steel wire.

[0040] In a specific implementation manner of the present invention, the fastening steel wire passes through the dust isolation board and is then tied to the sleeper.

[0041] As an embodiment of the present invention, the transverse fastening assembly specifically includes: a sleeper clamp for wrapping the sleepers of the rails; an inverted L-shaped support member having a vertical surface and a horizontal surface, the vertical surface being fixed on the sleeper clamp; a fastening plate for pressing the dust shield against the inverted L-shaped support member; and a fixing member for fixing the fastening plate and the dust shield against the inverted L-shaped support member.

[0042] In a specific implementation manner of the present invention, the fixing member is a screw, and the screw passes through the fastening plate and the dust shielding plate in sequence and is fixed to the inverted L-shaped supporting member.

[0043] In a specific embodiment of the present invention, the transverse fastening assembly also has a connecting plate, which is arranged on the sleeper clamp and the horizontal plane, and the fixing member passes through the fastening plate, the dust shielding plate and the connecting plate in sequence and is screwed into the horizontal plane.

[0044] As an embodiment of the present invention, the transverse fastening assembly specifically includes: a clamp, clamped on the lower edge of the bottom of the rail; a base plate, arranged at the bottom of the rail, used to connect the clamps on both sides of the rail; an inverted U-shaped bracket, having an upper side and a lower side, the lower side is fixed on the clamp, and the upper side is used to support and fix the dust shielding plate; a connecting rod, both ends of which are fixed on the base plate, used to support and fix the dust shielding plate; a connecting rod pressure plate, arranged on the connecting rod, used to press the dust shielding plate tightly against the connecting rod; and an insulating connecting plate, connected between the base plate and the connecting rod, used to insulate the base plate and the connecting rod.

[0045] In a specific embodiment of the present invention, the clamp has a U-shaped opening for clamping the lower edge of the bottom of the rail, a threaded hole arranged on one side of the U-shaped opening, and a bolt installed in the threaded hole. The opening width of the U-shaped opening is greater than the thickness of the lower edge of the bottom of the rail, and the clamp is fixed to the lower edge of the bottom of the rail or removed from the lower edge of the bottom of the rail by loosening or tightening the bolt.

[0046] As an embodiment of the present invention, the transverse fastening assembly specifically includes: a first clamping block, having a first through hole and a first groove, the first groove being clamped on the lower edge of one side of the bottom of the rail; a second clamping block, having a second through hole and a second groove, the second groove being clamped on the lower edge of the other side of the bottom of the rail; a pull rod with an external thread, passing through the first through hole and the second through hole, and being used to press the first clamping block and the second clamping block tightly against the lower edge of the bottom of the rail under the action of a nut; a bracket steel plate, arranged on the pull rod, and being used to fix the two ends or the middle of the dust shield; and a nylon rod, being used to connect the pull rods at relative positions of two adjacent rails.

[0047] According to the above-mentioned embodiments of the present invention, the construction method of the roadbed dust prevention device provided by the present invention has at least the following benefits: the roadbed dust prevention device is easy to install and maintain, can effectively isolate dropped objects and dust, prevent dropped objects and dust from entering the ballast gaps, and ensure the elasticity of the roadbed for a long time; the accumulated scattered objects and dust can be easily removed by a track sweeper, reducing the workload of railway maintenance personnel; the roadbed dust prevention device can be firmly fixed on the rails and sleepers to avoid safety hazards in railway driving.

[0048] It should be understood that the above general description and the following detailed description are merely exemplary and illustrative and are not intended to limit the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The following drawings are part of the specification of the present invention, and illustrate exemplary embodiments of the present invention. Together with the description of the specification, the accompanying drawings are used to explain the principles of the present invention.

[0050] Figure 1 The present invention provides a flow chart of a first embodiment of a construction method of a roadbed dust prevention device.

[0051] Figure 2 The present invention provides a flow chart of a second embodiment of a construction method for a roadbed dust prevention device.

[0052] Figure 3 The present invention provides a flow chart of a third embodiment of a construction method for a roadbed dust prevention device.

[0053] Figure 4 The present invention provides a flow chart of a fourth embodiment of a construction method for a roadbed dust prevention device.

[0054] Figure 5 The present invention provides a flowchart of a fifth embodiment of a construction method for a roadbed dust prevention device.

[0055] Figure 6 The present invention provides a flow chart of a sixth embodiment of a construction method for a roadbed dust prevention device.

[0056] Figure 7 A schematic structural diagram of Example 1 of a rail connection assembly of a ballast bed dust prevention device provided in a specific embodiment of the present invention.

[0057] Figure 8 A schematic structural diagram of Example 2 of a rail connection assembly of a ballast bed dust prevention device provided in a specific embodiment of the present invention.

[0058] Fig. 9 A schematic structural diagram of Example 3 of a rail connection assembly of a ballast bed dust prevention device provided in a specific embodiment of the present invention.

[0059] Fig.10 A structural schematic diagram of Example 4 of a rail connection assembly of a ballast bed dust prevention device provided in a specific embodiment of the present invention.

[0060] Fig.11 A structural schematic diagram of Example 5 of a rail connection assembly of a ballast bed dust prevention device provided in a specific embodiment of the present invention.

[0061] Fig.12 A structural schematic diagram of Example 6 of a rail connection assembly of a ballast bed dust prevention device provided in a specific embodiment of the present invention.

[0062] Fig.13A structural schematic diagram of Example 7 of a rail connection assembly of a ballast bed dust prevention device provided in a specific embodiment of the present invention.

[0063] Fig.14 A structural schematic diagram of Example 1 of the rail-to-rail connection of the transverse fastening assembly of the roadbed dust prevention device provided in the specific embodiment of the present invention.

[0064] Fig.15 A structural schematic diagram of Example 2 of the rail-to-rail connection of the transverse fastening assembly of the roadbed dust prevention device provided in a specific embodiment of the present invention.

[0065] Fig.16 A structural schematic diagram of Example 3 of the rail-to-rail connection of the transverse fastening assembly of the roadbed dust prevention device provided in a specific embodiment of the present invention.

[0066] Fig.17 A schematic diagram of the inter-wire connection of the transverse fastening assembly of the track bed dust prevention device provided in a specific embodiment of the present invention.

[0067] Fig.18 A schematic diagram of the outer rail connection of the transverse fastening assembly of the ballast bed dust prevention device provided in a specific embodiment of the present invention.

[0068] Description of reference numerals:

[0069] 1-dust screen, 2-rail connection device, 3-lateral fastening assembly, 4-rubber skirt, 5-rail, 6-sleeper, 7-ballast plate;

[0070] 201A-clamp, 202A-inverted U-shaped bracket, 203A-fastening plate, 204A-fixing piece, 205A-bottom plate, 206A-insulating piece;

[0071] 203B-fastening plate, 204B-fixing piece, 205B-bottom plate, 206B-insulating piece, 207A-pressing block, 208-L-shaped bracket;

[0072] 203C-fastening plate, 204C-fixing member, 206C-insulating member, 209-U-shaped bottom bracket, 210-first bracket, 211-second bracket;

[0073] 203D-fastening plate, 204D-fixing piece, 205C-bottom plate, 207B-pressing block, 212A-bracket, 213-magnet, 214-magnet suction plate, 216-magnet guard plate;

[0074] 203E-fastening plate, 204E-fixing piece, 205D-bottom plate, 207C-pressing block, 212B-bracket, 215-bracket steel plate;

[0075] 203G-fastening plate, 204G-fixing part, 216-supporting pad, 217-adsorption part, 218-galvanized steel plate, 2171-first magnet, 2172-second magnet, 2173-third magnet;

[0076] 203F-fastening plate, 204F-fixing piece, 301-sleeper hoop, 302-inverted L-shaped support piece, 303-connecting plate;

[0077] 201B-clamp, 202B-inverted U-shaped bracket, 205E-bottom plate, 304-connecting rod, 305-connecting rod pressure plate, 306-insulating connecting plate;

[0078] 307-first clamping block, 308-second clamping block, 309-pull rod, 310-support steel plate, 311-nylon rod. DETAILED DESCRIPTION

[0079] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as limiting the present invention, but should be understood as a more detailed description of certain aspects, features, and embodiments of the present invention.

[0080] It will be apparent to those skilled in the art that various modifications and variations may be made to the specific embodiments of the present invention description without departing from the scope or spirit of the present invention. Other embodiments derived from the present invention description will be apparent to those skilled in the art. The present application description and examples are exemplary only.

[0081] Figure 1 This is a flow chart of a first embodiment of a construction method of a roadbed dust prevention device provided by the present invention. Figure 1 As shown, the dust-shielding plates are evenly laid on both sides of the rails along the running direction of the railway line, and then the dust-shielding plates are fixed on the ballast bed.

[0082] In the specific implementation manner shown in the accompanying drawing, the construction method of the roadbed dust prevention device includes:

[0083] Step 101: Lay a plurality of dust-proof boards on both sides of the rails along the driving direction of the line. In a specific embodiment of the present invention, the dust-proof boards are laid along the driving direction and evenly laid on both sides of the rails to more comprehensively prevent dust on the track bed.

[0084] Step 102: Fixing the two sides and two ends of the dust-shielding board. In a specific embodiment of the present invention, the two sides and two ends of the dust-shielding board are fixed to prevent the dust-shielding board from being lifted up by the train during driving, thereby causing potential safety hazards in railway driving.

[0085] See also Figure 1The dust screen is evenly laid on both sides of the rails along the direction of the railway line, and then fixed on the roadbed to prevent the train from lifting the dust screen during driving, causing hidden dangers to railway driving safety.

[0086] Figure 2 This is a flow chart of a second embodiment of a construction method of a roadbed dust prevention device provided by the present invention. Figure 2 As shown, in order to prevent short circuits caused by static electricity, insulation testing is required after the dust shield is fixed.

[0087] In the specific implementation shown in the figure, after step 102, the construction method of the roadbed dust prevention device includes:

[0088] Step 103: Conducting insulation test on the ballast bed. In a specific embodiment of the present invention, after the dust shield is fixed, it is necessary to conduct insulation test on the ballast bed to prevent short circuit caused by static electricity.

[0089] See also Figure 2 In order to prevent the static electricity generated during the train running from damaging the train system, it is necessary to carry out insulation inspection on the roadbed after the dust shield is installed to prevent problems such as short circuit caused by static electricity.

[0090] Figure 3 This is a flow chart of a fourth embodiment of a construction method of a roadbed dust prevention device provided by the present invention. Figure 3 As shown, the dust screen needs to be fixed by a rail connection assembly and a transverse fastening assembly to prevent the dust screen from being lifted up by a moving train.

[0091] In the specific implementation manner shown in the figure, before step 101, the construction method of the roadbed dust prevention device includes:

[0092] Step 100-1: Install multiple rail connection assemblies at intervals along the bottom of the rail in the direction of travel of the line. In a specific embodiment of the present invention, it is necessary to set the rail connection assembly on the rail, and then fix the two sides of the dust shield on the rail.

[0093] Step 100-2: Install multiple transverse fastening components at intervals at the starting end and the end of the dust-proof board to be laid. In a specific embodiment of the present invention, transverse fastening components need to be installed at intervals at the starting end and the end of the dust-proof board to transversely fix the dust-proof board.

[0094] See also Figure 3 The rail connection assembly is used to fix the two sides of the dust screen on the rails, and the transverse fastening assembly is used to fix the two ends of the dust screen to prevent the dust screen from falling off the roadbed to the greatest extent, thereby avoiding hidden dangers to railway operation.

[0095] Figure 4This is a flow chart of a fourth embodiment of a construction method of a roadbed dust prevention device provided by the present invention. Figure 4 As shown, a transverse fastening assembly is arranged in the middle of each dust-proof board to further fix the dust-proof board.

[0096] In the specific implementation manner shown in the figure, after step 100-2, the construction method of the roadbed dust prevention device includes:

[0097] Step 100-3: Install a transverse fastening assembly in the middle of the dust-proof board to be laid. In a specific embodiment of the present invention, in order to further fix the dust-proof board, a transverse fastening assembly needs to be installed in the middle of each dust-proof board.

[0098] See also Figure 4 Installing a transverse fastening assembly in the middle of each dust screen can further fix the dust screen and increase the firmness of the dust screen.

[0099] Figure 5 This is a flow chart of Embodiment 5 of a construction method of a roadbed dust prevention device provided by the present invention. Figure 5 As shown, the rail connection assembly and the transverse fastening assembly fix the dust screen at the two side surfaces, front and rear ends, and the middle of the dust screen respectively.

[0100] In the specific implementation shown in the figure, step 102 specifically includes:

[0101] Step 1021: Use the rail connection assembly to fix the two sides of the dust shield to the bottom edge of the rail. In a specific embodiment of the present invention, the rail connection assembly firmly fixes the side of the dust shield to the rail to prevent the dust shield from being lifted up by the running belt.

[0102] Step 1022: Use the transverse fastening assembly to fix the two ends and the middle of the dust-shielding board. In a specific embodiment of the present invention, the transverse fastening assembly is arranged at the starting end, the end end and a certain interval in the middle of the dust-shielding board to fix the dust-shielding board transversely.

[0103] See also Figure 5 The rail connection assembly is used to fix the two sides of the dust screen on the rails, and the transverse fastening assembly is used to fix the two ends of the dust screen to prevent the dust screen from falling off the roadbed to the greatest extent, thereby avoiding hidden dangers to railway operation.

[0104] Figure 6 This is a flow chart of a sixth embodiment of a construction method of a roadbed dust prevention device provided by the present invention. Figure 6 As shown, the track bed needs to be tidied and the ballast leveled before all installation steps are carried out.

[0105] In the specific implementation shown in the figure, before step 100-1, the construction method of the roadbed dust prevention device includes:

[0106] Step 100: Leveling the ballast. In a specific embodiment of the present invention, the ballast on the roadbed needs to be leveled before installation to facilitate subsequent installation work.

[0107] See also Figure 6 Before installation, the ballast on the roadbed needs to be leveled to facilitate subsequent installation work and reduce the damage of the ballast to the dust prevention device.

[0108] Figure 7 The structural diagram of the first embodiment of the rail connection assembly of the ballast bed dust prevention device provided by the specific embodiment of the present invention is as follows Figure 7 As shown, the clamp is fixed on the lower edge of the rail, the inverted U-shaped bracket is fixed on the clamp, and then the dust shield is fixed on the inverted U-shaped bracket, so that the dust shield is firmly fixed on the rail.

[0109] In the specific implementation shown in the figure, the rail connection assembly includes: a clamp 201A, an inverted U-shaped bracket 202A, a fastening plate 203A, a fixing member 204A, a bottom plate 205A and an insulating member 206A. The clamp 201A is clamped on the lower edge of the rail 5; the inverted U-shaped bracket 202A has an upper side and a lower side, and the lower side is fixed on the clamp 201A; the fastening plate 203A is arranged on the upper surface of the dust shielding plate 1, and is used to press the dust shielding plate 1; the fixing member 204A is used to fix the fastening plate 203A and the dust shielding plate 1 on the upper side; the bottom plate 205A is arranged at the bottom of the rail 5, and the bottom plate 205A is used to fix the clamp 201A connecting the two sides of the rail; the insulating member 206A is arranged at the contact point between the clamp 201A and the rail 5, and is used to keep the clamp 201A and the rail 5 insulated. In an embodiment of the present invention, the clamp 201A has a U-shaped opening for clamping the lower edge of the bottom of the rail 5, a threaded hole arranged on one side of the U-shaped opening, and a bolt installed in the threaded hole. The opening width of the U-shaped opening is greater than the thickness of the lower edge of the bottom of the rail 5. The clamp 201A is fixed to the lower edge of the bottom of the rail 5 or removed from the lower edge of the bottom of the rail 5 by loosening or tightening the bolt. The clamp 201A, the inverted U-shaped bracket 202A and the bottom plate 205A are fixed together by bolts. The fastening plate 203A has a through hole. After the fixing member 204A passes through the through hole and the dust shield 1, the fastening plate 203A and the dust shield 1 are fixed to the upper side. In addition, the fastening plate 203A is a long strip-shaped plate arranged along the rail 5.

[0110] See also Figure 7, use the clamp 201A to fix it on the bottom of the rail 5, and then fix the dust shield 1 on the inverted U-shaped bracket 202A, and the inverted U-shaped bracket 202A is fixed on the clamp 201A, so that the dust shield 1 is fixed on the rail 5. This has a simple structure, is easy to install and disassemble, is firmly fixed, and will not be carried away by the airflow generated by the high-speed train, ensuring driving safety.

[0111] Figure 8 The structural diagram of the second embodiment of the rail connection assembly of the ballast bed dust prevention device provided by the specific embodiment of the present invention is as follows Figure 8 As shown, the pressing block is fixed to the bottom plate and clamped to the rail. L-shaped brackets are provided on both sides of the pressing block. The dust-shielding plate is fixed to the brackets on both sides by fixing parts, so that the dust-shielding plate is fixed to the rail.

[0112] In the specific implementation shown in the figure, the rail connection assembly includes: a bottom plate 205B, a pressure block 207A, an L-shaped bracket 208, a fastening pressure plate 203B, a fixing member 204B and an insulating member 206B. Among them, the bottom plate 205B is arranged under the rail 5; the pressure block 207A is located above the bottom plate 205B and the bottom of the rail 5, and under the action of the bolts, the pressure block 207A and the bottom plate 205B are pressed tightly against the lower edge of the bottom of the rail 5; the L-shaped bracket 208 is arranged on the pressure block 207A, which is used to support and fix the dust shielding plate 1; the fastening pressure plate 203B is used to press the dust shielding plate 1 tightly on the L-shaped bracket 208; the fixing member 204B is used to fix the fastening pressure plate 203B and the dust shielding plate 1 on the L-shaped bracket 208; and the insulating member 206B is arranged at the position where the pressure block 207A contacts the rail 5, and the position where the bottom plate 205B contacts the rail 5, which is used to maintain insulation between the rail 5 and the pressure block 207A and the bottom plate 205B. In the embodiment of the present invention, a part of the pressing block 207A is pressed on the upper surface of the bottom of the rail 5, and another part of the pressing block 207A is pressed on the bottom plate 205B. Under the action of the bolts, the pressing block 207A and the bottom plate 205B are pressed tightly against the lower edge of the bottom of the rail 5. The fastening pressing plate 203B has a through hole. After the fixing member 204B passes through the through hole and the dust shielding plate 1, the fastening pressing plate 203B and the dust shielding plate 1 are fixed to the L-shaped bracket 208. In addition, the fastening pressing plate 203B is a long strip pressing plate arranged along the rail 5. The fastening pressing plate 203B can be continuously pressed on the dust shielding plate 1, that is, the fastening pressing plate 203B is infinitely extended; or the fastening pressing plate 203B can be arranged only where there is a bracket, that is, the length of the fastening pressing plate 203B is equivalent to the width of the L-shaped bracket 208.

[0113] See also Figure 8The pressing block 207A and the bottom plate 205B are fixedly connected and then clamped at the bottom of the rail 5, and then L-shaped brackets 208 are set on both sides of the pressing block 207A, and the dust shield 1 is fixed on the L-shaped bracket 208. The structure is simple, and it is easy to install and disassemble, and it is firmly fixed and will not be carried away by the airflow formed by the high-speed train.

[0114] Fig. 9 The schematic diagram of the structure of the third embodiment of the rail connection assembly of the roadbed dust prevention device provided by the specific embodiment of the present invention. Fig. 9 As shown, the U-shaped base is clamped at the bottom of the rail, and a first bracket and a second bracket are arranged on both sides of the U-shaped base. Fasteners fix the dust shield on the first bracket and the second bracket, so that the dust shield is fixed on the rail.

[0115] In the specific implementation shown in the figure, the rail connection assembly includes: a U-shaped base 209, a first bracket 210, a second bracket 211, a fastening plate 203C, a fixing member 204C and an insulating member 206C. The U-shaped base 209 is clamped on the rail bottom of the rail 5; the first bracket 210 is arranged on a U-shaped surface of the U-shaped base 209, and is used to support and fix the dust shield 1 on one side of the rail; the second bracket 211 is arranged on the other U-shaped surface of the U-shaped base 209, and is used to support and fix the dust shield 1 on the other side of the rail; the fastening plate 203C is used to press the dust shield 1 on the corresponding bracket; the fixing member 204C is used to fix the fastening plate 203C and the dust shield 1 on the corresponding bracket; and the insulating member 206C is arranged at the contact position between the U-shaped base 209 and the rail 5, and is used to insulate the U-shaped base 209 and the rail 5. In order to prevent short circuits on the railway, it is necessary to set insulating materials at the contact position between the U-shaped base 209 and the rail 5, which can effectively prevent short circuits between the two rails and ensure the safe operation of the railway. In an embodiment of the present invention, the fastening plate 203C has a through hole, and after the fixing member 204C passes through the through hole and the dust shielding plate 1, the fastening plate 203C and the dust shielding plate 1 are fixed to the corresponding bracket. The fastening plate 203C is a long strip of plate arranged along the rail 5. The fastening plate 203C can be continuously pressed on the dust shielding plate 1, that is, the fastening plate 203C is infinitely extended; the fastening plate 203C can also be set only where there is a bracket, that is, the length of the fastening plate 203C is equivalent to the width of the bracket.

[0116] See also Fig. 9 , use the U-shaped base 209 to clamp at the bottom of the rail 5, then set brackets on both sides of the U-shaped base 209, and fix the dust shield 1 on the brackets. This structure is simple, easy to install and disassemble, firmly fixed, and will not be carried away by the airflow formed by the high-speed train.

[0117] Fig.10This is a schematic diagram of the structure of the fourth embodiment of the rail connection assembly of the ballast dust prevention device provided by the specific embodiment of the present invention. Fig.10 As shown, the pressing block is fixed to the bottom plate and clamped to the rail. A bracket is provided on the upper part of the pressing block, and a magnet is provided inside the bracket. The dust shielding plate fixed to the magnetic suction plate is fixed to the rail by utilizing the mutual attraction between the magnetic suction plate and the magnet.

[0118] In the specific implementation shown in the figure, the rail connection assembly includes: a base plate 205C, a pressure block 207B, a bracket 212A, a magnet 213, a magnet guard plate 216, a magnet suction plate 214, a fastening pressure plate 203D and a fixing member 204D. Among them, the bottom plate 205C is arranged below the rail 5; the pressing block 207B is located above the bottom plate 205C and the bottom of the rail 5, and under the action of the bolts, the pressing block 207B and the bottom plate 205C are pressed against the lower edge of the bottom of the rail 5; the bracket 212A is arranged on the pressing block 207B, and is used to support and fix the dust shield 1; the magnet 213 is arranged on the upper part of the bracket 212A; the magnet guard plate 216 is arranged on the upper part of the magnet 213, and is used to protect and fix the magnet 213; the magnet suction plate 214 is arranged on the upper part of the magnet guard plate 216, and is used to absorb the magnet 213; the fastening pressing plate 203D is used to press the dust shield 1 against the magnet suction plate 214; and the fixing member 204D is used to fix the fastening pressing plate 203D and the dust shield 1 on the magnet suction plate 214. In the embodiment of the present invention, the bottom plate 205C, the pressing block 207B and the bracket 212A are all made of plastic or other engineering materials. The plastic material is light, easy to process, and has an insulating effect to prevent short circuits on the railway. The bracket 212A, the pressing block 207B and the bottom plate 205C are fixed together by bolts.

[0119] In addition, the fastening plate 203D is a long strip-shaped plate arranged along the rail 5. The fastening plate 203D can be continuously pressed on the dust shield 1, that is, the fastening plate 203D is infinitely extended; or the fastening plate 203D can be only arranged where there is a rail connection assembly, that is, the length of the fastening plate 203D is equivalent to the width of the rail connection assembly. The fixing member 204D is a screw, which passes through the fastening plate 203D and the dust shield 1 and is fixed on the magnet suction plate 214, and the magnet suction plate 214 is adsorbed on the magnet 213.

[0120] See also Fig.10 The pressing block 207B and the bottom plate 205C are fixedly connected and then clamped on the bottom of the rail 5, and then a bracket 212A is arranged on the upper part of the pressing block 207B, and a magnet 213 is arranged in the bracket 212A. The dust shield 1 fixed on the magnetic suction plate 214 is indirectly fixed to the rail 5 through the mutual attraction between the magnet 213 and the magnetic suction plate 214. This design has a simple structure, is easy to install and disassemble, is firmly fixed, and will not be carried away by the airflow formed by the high-speed train.

[0121] Fig.11 This is a structural diagram of the fifth embodiment of the rail connection assembly of the ballast dust prevention device provided by the specific embodiment of the present invention. Fig.11 As shown, the pressing block is fixed to the bottom plate and clamped to the rail. A bracket is provided on the upper part of the pressing block, and the bracket is fixedly connected to the upper bracket steel plate. The dust shield is fixedly connected to the bracket steel plate through a fixing piece, so the dust shield is indirectly fixed to the rail.

[0122] In the specific implementation shown in the figure, the rail connection assembly includes: a bottom plate 205D, a pressure block 207C, a bracket 212B, a bracket steel plate 215, a fastening plate 203E and a fixing member 204E. The bottom plate 205D is arranged below the rail 5; the pressure block 207C is located above the bottom plate 205D and the bottom of the rail 5, and under the action of the bolts, the pressure block 207C and the bottom plate 205D are pressed against the lower edge of the bottom of the rail 5; the bracket 212B is arranged on the pressure block 207C; the bracket steel plate 215 is arranged on the upper part of the bracket 212B, and the bracket steel plate 215 is used to fix the dust shield 1; the fastening plate 203E is used to press the dust shield 1 against the bracket steel plate 215; and the fixing member 204E is used to fix the fastening plate 203E, the dust shield 1 and the bracket steel plate 215 on the bracket 212B. In the embodiment of the present invention, the base plate 205D, the pressing block 207C and the bracket 212B are all made of plastic or other engineering materials. Among them, the plastic material is light in weight, easy to process, and has an insulating effect to prevent short circuits on the railway. The bracket 212B, the pressing block 207C and the base plate 205D are fixed together by bolts.

[0123] In addition, the fastening plate 203E is a long strip-shaped plate arranged along the rail 5. The fastening plate 203E can be continuously pressed on the dust shield 1, that is, the fastening plate 203E is infinitely extended; or the fastening plate 203E can be arranged only where there is a rail connection assembly, that is, the length of the fastening plate 203E is equivalent to the width of the rail connection assembly. The fixing member 204E is a screw, which passes through the fastening plate 203E, the dust shield 1 and the bracket steel plate 215 and is fixed on the bracket 212B.

[0124] See also Fig.11 , the pressing block 207C and the bottom plate 205D are fixedly connected and then clamped on the bottom of the rail 5, and then a bracket 212B is arranged on the upper part of the pressing block 207C, and the bracket 212B is fixedly connected to the upper bracket steel plate 215, wherein the dust shielding plate 1 is fixed to the bracket steel plate 215 by the fixing piece 204E, so the dust shielding plate 1 is indirectly fixed to the rail 5. Such a design structure is simple, and it is easy to install and disassemble, and is firmly fixed, and will not be carried away by the airflow formed by the high-speed train.

[0125] Fig.12 The structural schematic diagram of Example 6 of the rail connection assembly of the magnetic roadbed dust prevention device provided for the specific implementation mode of the present invention is shown in 13. The adsorbent in the supporting pad tightly adsorbs the supporting pad to the rail, and the fixing member fixes the dust shielding plate to the supporting pad, so that the dust shielding plate is firmly fixed to the rail.

[0126] In the specific implementation shown in the figure, the rail connection assembly 2 has a support pad 216, an adsorbent 217, a fastening plate 203G and a fixing member 204G, wherein the support pad 216 is used to support the dust shielding plate 1; the adsorbent 217 is embedded in the support pad 216, and the adsorbent 217 is used to adsorb the support pad 216 on the rail 5; the fastening plate 203G is used to press the dust shielding plate 1 on the support pad 216; and the fixing member 204G is used to fix the fastening plate 203G and the dust shielding plate 1 on the support pad 216. In the embodiment of the present invention, the fixing member 204G is a screw, and the screw has a nut and a screw rod. The screw rod passes through the fastening plate 203G and the dust shielding plate 1 in turn and is screwed into the support pad 216, and the nut presses the fastening plate 203G and the dust shielding plate 1 on the support pad 216. In the embodiment of the present invention, the fastening plate 203G is a long strip-shaped plate arranged along the rail 5. The fastening plate 203G can be continuously pressed on the dust shield 1, that is, the fastening plate 203G is infinitely extended; or the fastening plate 203G can be arranged only where the support pad 216 exists, that is, the length of the fastening plate 203G is equivalent to the width of the support pad 216. The support block 216 has a side surface and a bottom surface that cooperate with the rail 5, and the support block 216 is tightly attached to the rail 5 through the side surface and the bottom surface, that is, at the contact point between the support block 216 and the rail 5, the shape of the support block 216 and the rail 5 match, ensuring that the support block 216 and the rail 5 are tightly attracted together. Specifically, the side surface of the support block 216 is tightly fitted with the waist of the rail 5, and the bottom surface of the support block 216 is tightly fitted with the bottom of the rail 5, and the edge between the side surface and the bottom surface of the support block 216 is rounded to cooperate with the corner formed by the waist and bottom of the rail 5. The adsorbent 217 specifically includes a first magnet 2171 embedded in the side surface and a second magnet 2172 embedded in the bottom surface. The first magnet 2171 is adsorbed on the waist of the rail 5, and the second magnet 2172 is adsorbed on the bottom of the rail 5, and the adsorption is firm; or, the adsorbent 217 is specifically a magnet embedded in the support pad 216, and a magnet is used to simultaneously adsorb on the waist and bottom of the rail 5, saving materials and reducing costs. The adsorbent 217 can be completely contained in the support pad 216, or one surface or part of it can be exposed outside the support pad 216, and the present invention is not limited thereto.

[0127] See also Fig.12 The support pad 216 is adsorbed on the rail 5 by the adsorption member 217, which will not cause damage to the rail 5, will not affect the normal passage of the train, and is easy to install and disassemble, and is firmly fixed, and the dust isolation board 1 will not be lifted up by the negative pressure formed by the high-speed train.

[0128] In a specific embodiment of the present invention, a baffle can be embedded in the support pad 216. When the fixing member 204G is a screw, the screw is screwed into the support pad 216 and is coupled with the baffle. That is, the screw is screwed into the support pad 216 and is fixed to the baffle, which is firm and reliable. The magnet is also connected to the baffle by the screw and fixed to the support pad 216.

[0129] Fig.13 The structural diagram of the seventh embodiment of the rail connection assembly of the magnetic ballast dust prevention device provided by the specific embodiment of the present invention is as follows Fig.13 As shown, the galvanized steel plate fixed with the dust shield is adsorbed onto the supporting pad by a magnet, thereby fixing the dust shield.

[0130] In the specific implementation shown in the figure, the fixing member 204G includes a screw and a galvanized steel plate 218, and the screw fixes the dust shield 1 on the galvanized steel plate 218. The screw passes through the fastening plate 203G and the dust shield 1 in sequence and is fixed to the galvanized steel plate 218. In addition, the support block 216 has a top and a side surface and a bottom surface that cooperate with the steel rail 5, and the support block 216 is tightly attached to the steel rail 5 through the side surface and the bottom surface. The adsorbent 217 specifically includes: a first magnet 2171 embedded in the side surface, a second magnet 2172 embedded in the bottom surface, and a third magnet 2173 embedded in the top, wherein the first magnet 2171 and the second magnet 2172 are adsorbed on the steel rail 5, and the galvanized steel plate 218 is adsorbed on the third magnet 2173. The first magnet 2171 is adsorbed on the waist of the rail 5, the second magnet 2172 is adsorbed on the bottom of the rail 5, and the third magnet 2173 is arranged on the top of the supporting pad to adsorb the galvanized steel plate 218, thereby indirectly fixing the dust shield 1 on the rail 5.

[0131] See also Fig.13 The galvanized steel plate 218 is adsorbed by the third magnet 2173 to indirectly fix the dust shield 1 to the manufactured pad 21. The support pad 216 is adsorbed to the rail 5 by the first magnet 2171 and the second magnet 2172. The dust shield 1 will not fall out of the nut due to wind or the airflow formed when a high-speed train is running, which is safe and reliable.

[0132] Fig.14This is a structural diagram of the first embodiment of the connection between rails of the transverse fastening assembly of the roadbed dust prevention device provided by the specific embodiment of the present invention. Fig.14 As shown, the connection between two adjacent dust-shielding boards is fixed on the sleepers (railway sleepers) to further prevent the dust-shielding boards from being blown up by the wind or carried up by high-speed trains; the dust-shielding boards are fixed with sleeper clamps, which will not cause damage to the sleepers and will not affect driving safety.

[0133] In the specific implementation shown in the figure, the transverse fastening assembly includes: a sleeper clamp 301, an inverted L-shaped support 302, a connecting plate 303, a fastening plate 203F and a fixing member 204F. Among them, the sleeper clamp 301 is used to wrap the sleeper 6 of the rail; the inverted L-shaped support 302 has a vertical surface and a horizontal surface, and the vertical surface is fixed on the sleeper clamp 301; the connecting plate 303 is arranged on the sleeper clamp 301 and the horizontal surface; the fastening plate 203F is used to press the dust shielding plate 1 on the inverted L-shaped support 302; and the fixing member 204F is used to fix the fastening plate 203F and the dust shielding plate 1 on the inverted L-shaped support 302. In the embodiment of the present invention, the fixing member 204F is a screw, and the screw passes through the fastening plate 203F and the dust shielding plate 1 in sequence and is fixed to the inverted L-shaped support 302. The fastening plate 203F is a long strip plate arranged along the sleeper 6, and the length of the fastening plate 203F is equivalent to the length of the sleeper 6. The connecting plate 303 is arranged on the sleeper clamp 301 and the horizontal plane, and the fixing member 204F passes through the fastening plate 203F, the dust shield 1 and the connecting plate 303 in sequence and is screwed into the horizontal plane.

[0134] See also Fig.14 The connection between adjacent dust-shielding boards 1 is fixed on the sleeper clamp 301, which will not damage the sleeper 6, and can prevent the wind pressure formed by hurricanes or high-speed trains from lifting the dust-shielding boards 1 through the connection between adjacent dust-shielding boards 1, without causing driving safety.

[0135] In addition, the transverse fastening assembly 3 can also fix two adjacent dust-shielding boards 1 together, thereby increasing the stability between the dust-shielding boards 1 .

[0136] Fig.15 This is a structural diagram of the second embodiment of the connection between rails of the transverse fastening assembly of the roadbed dust prevention device provided by the specific embodiment of the present invention. Fig.15 Shown is a schematic diagram of a transverse fastening assembly connecting two rails on a single railway line. The dust screen is fixed to the connecting rod to further prevent the dust screen from being blown up by the wind or carried up by a high-speed train. The use of the connecting rod to fix the dust screen will not cause damage to the roadbed and sleepers, and will not affect driving safety.

[0137] In the specific implementation shown in the figure, the transverse fastening assembly includes: a clamp 201B, a bottom plate 205E, an inverted U-shaped bracket 202B, a connecting rod 304, a connecting rod pressure plate 305 and an insulating connecting plate 306. Among them, the clamp 201B is clamped on the lower edge of the rail 5; the bottom plate 205E is arranged at the bottom of the rail 5, and is used to connect the clamp 201B on both sides of the rail; the inverted U-shaped bracket 202B has an upper side and a lower side, the lower side is fixed on the clamp 201B, and the upper side is used to support and fix the dust-proof plate 1; the connecting rod 304, whose two ends are fixed on the bottom plate 205E, is used to support and fix the dust-proof plate 1; the connecting rod pressure plate 305 is arranged on the connecting rod 304, and is used to press the dust-proof plate 1 tightly on the connecting rod 304; and the insulating connecting plate 306 is connected between the bottom plate 205E and the connecting rod 304, and is used to insulate the bottom plate 205E and the connecting rod 304. Insulating connecting plates 306 are provided on both sides of the inner rails (adjacent rails of two opposite railway lines), and insulating connecting plates 306 are provided on only one side close to the inner side of the outer rails. In the embodiment of the present invention, the clamp 201B has a U-shaped opening for clamping the lower edge of the rail bottom of the rail 5, a threaded hole provided on one side of the U-shaped opening, and a bolt installed in the threaded hole. The opening width of the U-shaped opening is greater than the thickness of the lower edge of the rail bottom of the rail 5. The clamp 201B is fixed to the lower edge of the rail bottom of the rail 5 or removed from the lower edge of the rail bottom of the rail 5 by loosening and tightening bolts.

[0138] See also Fig.15 , the dust shield 1 is fixed on the connecting rod 304, which will not damage the sleepers 6, and can prevent the wind pressure formed by hurricanes or high-speed trains from lifting the dust shield 1 through the connection between adjacent dust shields 1, without causing driving safety.

[0139] In addition, the transverse fastening assembly 3 can also fix two adjacent dust-shielding boards 1 together, thereby increasing the stability between the dust-shielding boards 1 .

[0140] Fig.16 This is a structural diagram of the third embodiment of the connection between rails of the transverse fastening assembly of the roadbed dust prevention device provided by the specific embodiment of the present invention. Fig.16 As shown, it is a schematic diagram of the transverse fastening assembly connected between rails (between two rails on a railway line), the dust shield is fixed on the bracket steel plate, the bracket steel plate is fixedly connected to the pull rod, and the pull rod is fixedly connected to the clamp clamped to the rail through a nut, so that the dust shield is indirectly fixed to the rail.

[0141] In the specific implementation shown in the figure, the transverse fastening assembly includes: a first clamp block 307, a second clamp block 308, a pull rod 309, a bracket steel plate 310 and a nylon rod 311. The first clamp block 307 has a first through hole 3071 and a first groove 3072, and the first groove 3072 is clamped on the lower edge of the bottom of the rail 5;

[0142] The second clamp block 308 has a second through hole 3081 and a second groove 3082, and the second groove 3082 is clamped on the lower edge of the other side of the rail bottom of the steel rail 5; the pull rod 309 has an external thread, and the pull rod 309 passes through the first through hole 3071 and the second through hole 3081. The pull rod 309 is used to press the first clamp block 307 and the second clamp block 308 on the lower edge of the rail bottom of the steel rail 5 under the action of the nut; the bracket steel plate 310 is arranged on the pull rod 309, and is used to fix the two ends or the middle of the dust shield 1; and the nylon rod 311 is used to connect the pull rod 309 at the relative position of two adjacent steel rails 5. In the specific embodiment of the present invention, the nut on the pull rod 309 is rotated to clamp the first clamp block 307 and the second clamp block 308 on the steel rail 5, and the pull rod 309 can also be fixed on the steel rail 5. In addition, in order to avoid short circuit on the railway, a nylon rod 311 is also arranged between the two pull rods arranged between the two steel rails on the same track to achieve an insulation effect.

[0143] In another embodiment of the present invention, the transverse fastening component 3 is specifically a fastening steel wire, which passes through the dust screen 1 and is tied to the sleeper 6. The transverse fastening component 3 is arranged at the overlapping part of adjacent dust screens 1, or at the overlapping part of adjacent dust screens 1 and in the middle of the dust screen 1. The transverse fastening component 3 is arranged at the overlapping part of adjacent dust screens 1 and in the middle of the dust screen 1 at the same time, which can prevent the negative pressure formed by hurricanes or high-speed trains from lifting the dust screen 1 through the adjacent dust screens 1, and can also prevent the middle area of ​​the dust screen 1 from tilting, so as not to cause driving safety.

[0144] Fig.17 The schematic diagram of the line connection of the transverse fastening assembly of the roadbed dust prevention device provided by the specific embodiment of the present invention. The line is between the adjacent rails of two opposite railway lines, such as Fig.17 As shown, the dust shield is fixed on the connecting rod to further prevent the dust shield from being blown up by the wind or carried up by a high-speed train; using the connecting rod to fix the dust shield will not cause damage to the roadbed and sleepers, and will not affect driving safety.

[0145] In the specific implementation shown in the figure, the transverse fastening assembly includes: a clamp 201B, a bottom plate 205E, an inverted U-shaped bracket 202B, a connecting rod 304, a connecting rod pressure plate 305 and an insulating connecting plate 306. Among them, the clamp 201B is clamped on the lower edge of the rail 5; the bottom plate 205E is arranged at the bottom of the rail 5, and is used to connect the clamp 201B on both sides of the rail; the inverted U-shaped bracket 202B has an upper side and a lower side, the lower side is fixed on the clamp 201B, and the upper side is used to support and fix the dust-proof plate 1; the connecting rod 304, whose two ends are fixed on the bottom plate 205E, is used to support and fix the dust-proof plate 1; the connecting rod pressure plate 305 is arranged on the connecting rod 304, and is used to press the dust-proof plate 1 tightly on the connecting rod 304; and the insulating connecting plate 306 is connected between the bottom plate 205E and the connecting rod 304, and is used to insulate the bottom plate 205E and the connecting rod 304. In an embodiment of the present invention, the clamp 201B has a U-shaped opening for clamping the lower edge of the bottom of the rail 5, a threaded hole arranged on one side of the U-shaped opening, and a bolt installed in the threaded hole. The opening width of the U-shaped opening is greater than the thickness of the lower edge of the bottom of the rail 5. The clamp 201B is fixed to the lower edge of the bottom of the rail 5 or removed from the lower edge of the bottom of the rail 5 by a loose bolt.

[0146] See also Fig.17 , the dust shield 1 is fixed on the connecting rod 304, which will not damage the sleepers 6, and can prevent the wind pressure formed by hurricanes or high-speed trains from lifting the dust shield 1 through the connection between adjacent dust shields 1, without causing driving safety.

[0147] In addition, the transverse fastening assembly 3 can also fix two adjacent dust-shielding boards 1 together, thereby increasing the stability between the dust-shielding boards 1 .

[0148] Fig.18 A schematic diagram of the rail outer connection of the transverse fastening assembly of the roadbed dust prevention device provided in a specific embodiment of the present invention. Fig.18 The figure shows the connection diagram between the outer rail and the ballast plates on both sides of the railway. In order to achieve all-round dust prevention, dust shielding plates are also required to be set between the ballast plates extending from the outer side of the track to both sides of the railway. The dust shielding plates are also fixedly connected by transverse connecting components.

[0149] In the specific implementation shown in the figure, the transverse fastening assembly includes: a clamp 201B, a bottom plate 205E, an inverted U-shaped bracket 202B, a connecting rod 304, a connecting rod pressure plate 305 and an insulating connecting plate 306. Among them, the clamp 201B is clamped on the lower edge of the rail 5; the bottom plate 205E is arranged at the bottom of the rail 5, and is used to connect the clamp 201B on both sides of the rail; the inverted U-shaped bracket 202B has an upper side and a lower side, the lower side is fixed on the clamp 201B, and the upper side is used to support and fix the dust-proof plate 1; the connecting rod 304, whose two ends are fixed on the bottom plate 205E, is used to support and fix the dust-proof plate 1; the connecting rod pressure plate 305 is arranged on the connecting rod 304, and is used to press the dust-proof plate 1 tightly on the connecting rod 304; and the insulating connecting plate 306 is connected between the bottom plate 205E and the connecting rod 304, and is used to insulate the bottom plate 205E and the connecting rod 304. The insulating connecting plate 306 is arranged on the inner side of the rail, and the insulating connecting plate 306 may not be arranged on the outer side of the rail. The rail 5 is connected to the ballast plate 7 by a connecting rod 304, and the dust shield 1 is fixed on the connecting rod 304. In the embodiment of the present invention, the clamp 201B has a U-shaped opening for clamping the lower edge of the rail bottom of the rail 5, a threaded hole arranged on one side of the U-shaped opening, and a bolt installed in the threaded hole. The opening width of the U-shaped opening is greater than the thickness of the lower edge of the rail bottom of the rail 5. The clamp 201B is fixed to the lower edge of the rail bottom of the rail 5 or removed from the lower edge of the rail bottom of the rail 5 by a loose bolt.

[0150] See also Fig.18 The dust shield 1 is fixed on the connecting rod 304 and extends all the way to the ballast shield 7, and is fixedly connected to the ballast shield 7. This can not only prevent dust in all directions, but also prevent the wind pressure formed by hurricanes or high-speed trains from lifting the dust shield 1 through the connection between the adjacent dust shields 1, without causing driving safety.

[0151] The above description is only an illustrative specific implementation manner of the present invention. Without departing from the concept and principle of the present invention, any equivalent changes and modifications made by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A construction method for a roadbed dust prevention device, characterized in that: The method includes: A plurality of rail connection assemblies are installed at intervals along the bottom of the rail in the direction of travel of the line; Install multiple transverse fastening components at intervals at the starting end and the end of the dust isolation board to be laid; Multiple dust-shielding boards are evenly laid on both sides of the rails along the running direction of the line; Fixing both sides and both ends of the dust isolation plate; The transverse fastening assembly is arranged at the overlapping position of adjacent dust-shielding plates.

2. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: After the step of fixing both sides and both ends of the dust-proof plate, the method further comprises: Conduct insulation testing on the ballast bed.

3. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: After the step of installing a plurality of transverse fastening components at intervals at the starting end and the end of the dust-proof board to be laid, the method further comprises: Install the transverse fastening assembly in the middle of the dust barrier to be laid.

4. The construction method of the roadbed dust prevention device according to claim 3 is characterized in that: The steps of fixing both sides and both ends of the dust isolation plate specifically include: Using the rail connection assembly to fix the two sides of the dust shield to the bottom edge of the rail; and The two ends and the middle of the dust-proof plate are fixed by using the transverse fastening assembly.

5. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: Before the step of installing a plurality of rail connection assemblies at intervals along the bottom of the rail in the direction of travel of the line, the method further comprises: Leveling ballast.

6. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The rail connection assembly specifically comprises: A clamp, clamped on the lower edge of the rail; an inverted U-shaped bracket having an upper side and a lower side, wherein the lower side is fixed to the fixture; A fastening pressing plate, arranged on the upper surface of the dust-isolating plate, for pressing the dust-isolating plate; A fixing member, used for fixing the fastening plate and the dust-shielding plate on the upper side surface; A bottom plate, disposed at the bottom of the rail, for fixing the clamps connecting the two sides of the rail; and An insulating member is arranged at the contact point between the clamp and the rail, and is used to keep the clamp and the rail insulated.

7. The construction method of the roadbed dust prevention device according to claim 6, characterized in that: The clamp comprises a U-shaped opening for clamping the lower edge of the bottom of the rail, a threaded hole arranged on one side of the U-shaped opening, and a bolt installed in the threaded hole. The opening width of the U-shaped opening is greater than the thickness of the lower edge of the bottom of the rail. The clamp is fixed to the lower edge of the bottom of the rail or removed from the lower edge of the bottom of the rail by loosening or tightening the bolt.

8. The construction method of the roadbed dust prevention device according to claim 6, characterized in that: The clamp, the inverted U-shaped bracket and the bottom plate are fixed together by bolts.

9. The construction method of the roadbed dust prevention device according to claim 6, characterized in that: The fastening plate has a through hole, and after the fixing piece passes through the through hole and the dust-shielding plate, the fastening plate and the dust-shielding plate are fixed on the upper side surface.

10. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The rail connection assembly specifically comprises: The bottom plate is arranged under the rails; A pressing block is located above the bottom plate and the bottom of the steel rail. Under the action of bolts, the pressing block and the bottom plate are pressed tightly against the lower edge of the bottom of the steel rail. An L-shaped bracket, disposed on the pressing block, for supporting and fixing the dust-proof plate; A fastening pressing plate, used for pressing the dust-proof plate tightly onto the L-shaped bracket; A fixing member, used for fixing the fastening plate and the dust shield plate to the L-shaped bracket; and The insulating member is arranged at the position where the pressing block contacts the steel rail and the position where the bottom plate contacts the steel rail, and is used to maintain insulation between the steel rail and the pressing block and the bottom plate.

11. The construction method of the roadbed dust prevention device according to claim 10, characterized in that: A portion of the pressing block is pressed on the upper surface of the rail bottom of the steel rail, and another portion of the pressing block is pressed on the bottom plate. Under the action of the bolts, the pressing block and the bottom plate are tightly pressed against the lower edge of the rail bottom of the steel rail.

12. The construction method of the roadbed dust prevention device according to claim 10, characterized in that: The fastening plate has a through hole, and after the fixing piece passes through the through hole and the dust-shielding plate, the fastening plate and the dust-shielding plate are fixed on the L-shaped bracket.

13. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The rail connection assembly specifically comprises: The U-shaped base is clamped on the bottom of the rail; A first bracket, arranged on a U-shaped surface of the U-shaped base, for supporting and fixing the dust shield on one side of the rail; A second bracket is arranged on the other U-shaped surface of the U-shaped base, and is used to support and fix the dust shield on the other side of the rail; A fastening pressing plate, used to press the dust-proof plate tightly onto the corresponding bracket; A fixing member, used for fixing the fastening plate and the dust shield plate on corresponding brackets; and An insulating member is arranged at a contact position between the U-shaped base and the rail and is used for insulating the U-shaped base and the rail.

14. The construction method of the roadbed dust prevention device according to claim 13, characterized in that: The fastening plate has a through hole, and after the fixing piece passes through the through hole and the dust-shielding plate, the fastening plate and the dust-shielding plate are fixed on the corresponding brackets.

15. The construction method of the roadbed dust prevention device according to claim 13, characterized in that: Each U-shaped surface of the U-shaped base has a threaded through hole. The rail connection assembly also includes a fastening screw with a nut and a screw rod. The screw rod has an external thread matching the threaded through hole. Under the action of the fastening screw, the U-shaped base is clamped on the rail bottom of the rail.

16. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The rail connection assembly specifically comprises: The bottom plate is arranged under the rails; A pressing block is located above the bottom plate and the bottom of the steel rail. Under the action of bolts, the pressing block and the bottom plate are pressed tightly against the lower edge of the bottom of the steel rail. A bracket, arranged on the pressing block, for supporting and fixing the dust-proof plate; A magnet, disposed on the upper portion of the bracket; A magnet guard plate, disposed on the upper part of the magnet, for protecting and fixing the magnet; A magnet suction plate, arranged on the upper part of the magnet guard plate, for adsorbing the magnet; A fastening pressing plate, used to press the dust-proof plate tightly against the magnet suction plate; and A fixing member is used to fix the fastening pressing plate and the dust-shielding plate on the magnet suction plate.

17. The construction method of the roadbed dust prevention device according to claim 16, characterized in that: The bottom plate, the pressing block and the bracket are all made of plastic or other engineering materials.

18. The construction method of the roadbed dust prevention device according to claim 16, characterized in that: The bracket, the pressing block and the bottom plate are fixed together by bolts.

19. The construction method of the roadbed dust prevention device according to claim 16, characterized in that: The fixing member is a screw, and the screw passes through the fastening plate and the dust-proof plate and is fixed to the magnet suction plate, and the magnet suction plate is adsorbed on the magnet.

20. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The rail connection assembly specifically comprises: The bottom plate is arranged under the rails; A pressing block is located above the bottom plate and the bottom of the steel rail. Under the action of bolts, the pressing block and the bottom plate are pressed tightly against the lower edge of the bottom of the steel rail. A bracket, arranged on the pressing block; A support steel plate, arranged on the upper part of the support, for fixing the dust-proof plate; A fastening pressing plate, used to press the dust-proof plate tightly against the support steel plate; and A fixing piece is used to fix the fastening plate, the dust shield plate and the bracket steel plate on the bracket.

21. The construction method of the roadbed dust prevention device according to claim 20, characterized in that: The bottom plate, the pressing block and the bracket are all made of plastic or other engineering materials.

22. The construction method of the roadbed dust prevention device according to claim 20, characterized in that: The bracket, the pressing block and the bottom plate are fixed together by bolts.

23. The construction method of the roadbed dust prevention device according to claim 20, characterized in that: The fixing member is a screw, and the screw passes through the fastening plate, the dust shielding plate and the bracket steel plate and is fixed on the bracket.

24. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The rail connection assembly specifically comprises: A support pad, used for supporting the dust isolation board; An adsorption member, embedded in the support pad, used for adsorbing the support pad onto the rail; A fastening pressing plate, used for pressing the dust-proof plate tightly onto the supporting pad; and A fixing member is used to fix the fastening plate and the dust shielding plate on the supporting pad.

25. The construction method of the roadbed dust prevention device according to claim 24, characterized in that: The support pad has side surfaces and a bottom surface matched with the steel rail, and the support pad is tightly attached to the steel rail through the side surfaces and the bottom surface.

26. The construction method of the roadbed dust prevention device according to claim 25, characterized in that: The adsorption member specifically includes: a first magnet embedded in the side surface and a second magnet embedded in the bottom surface.

27. The construction method of the roadbed dust prevention device according to claim 24, characterized in that: The fixing member comprises a screw and a galvanized steel plate, and the screw fixes the dust-shielding plate on the galvanized steel plate.

28. The construction method of the roadbed dust prevention device according to claim 27, characterized in that: The support pad has a top, side surfaces and a bottom surface matched with the steel rail, and the support pad is tightly attached to the steel rail through the side surfaces and the bottom surface.

29. The construction method of the roadbed dust prevention device according to claim 28, characterized in that: The adsorption component specifically includes: a first magnet embedded in the side surface, a second magnet embedded in the bottom surface and a third magnet embedded in the top surface, wherein the first magnet and the second magnet are adsorbed on the rail, and the galvanized steel plate is adsorbed on the third magnet.

30. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The transverse fastening component is specifically a fastening wire.

31. The construction method of the roadbed dust prevention device according to claim 30, characterized in that: The fastening steel wire passes through the dust-proof plate and is then tied to the sleeper.

32. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The transverse fastening assembly specifically comprises: Sleeper clamps are used to wrap the sleepers of the rails; An inverted L-shaped support member having a vertical surface and a horizontal surface, wherein the vertical surface is fixed on the sleeper hoop; A fastening pressing plate, used for pressing the dust-proof plate tightly against the inverted L-shaped supporting member; and A fixing member is used to fix the fastening pressing plate and the dust-shielding plate on the inverted L-shaped supporting member.

33. The construction method of the roadbed dust prevention device according to claim 32, characterized in that: The fixing member is a screw, and the screw passes through the fastening plate and the dust shield plate in sequence and is fixed to the inverted L-shaped supporting member.

34. The construction method of the roadbed dust prevention device according to claim 32, characterized in that: The transverse fastening assembly also has a connecting plate, which is arranged on the sleeper clamp and the horizontal plane, and the fixing member passes through the fastening plate, the dust shielding plate and the connecting plate in sequence and is screwed into the horizontal plane.

35. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The transverse fastening assembly specifically comprises: A clamp, clamped on the lower edge of the rail; A bottom plate, arranged at the bottom of the rail, used to connect the clamps on both sides of the rail; An inverted U-shaped bracket, having an upper side and a lower side, wherein the lower side is fixed on the clamp, and the upper side is used to support and fix the dust-proof plate; A connecting rod, both ends of which are fixed to the bottom plate, for supporting and fixing the dust-shielding plate; A connecting rod pressing plate, disposed on the connecting rod, for pressing the dust shielding plate tightly against the connecting rod; and An insulating connecting plate is connected between the bottom plate and the connecting rod and is used for insulating the bottom plate and the connecting rod.

36. The construction method of the roadbed dust prevention device according to claim 35, characterized in that: The clamp comprises a U-shaped opening for clamping the lower edge of the bottom of the rail, a threaded hole arranged on one side of the U-shaped opening, and a bolt installed in the threaded hole. The opening width of the U-shaped opening is greater than the thickness of the lower edge of the bottom of the rail. The clamp is fixed to the lower edge of the bottom of the rail or removed from the lower edge of the bottom of the rail by loosening or tightening the bolt.

37. The construction method of the roadbed dust prevention device according to claim 1, characterized in that: The transverse fastening assembly specifically comprises: A first clamping block having a first through hole and a first groove, wherein the first groove is clamped on a lower edge of one side of the rail bottom of the rail; A second clamping block has a second through hole and a second groove, wherein the second groove is clamped on the lower edge of the other side of the rail bottom of the steel rail; A pull rod with external threads passes through the first through hole and the second through hole, and is used to press the first clamping block and the second clamping block tightly onto the lower edge of the rail bottom of the rail under the action of a nut; A support steel plate, disposed on the pull rod, for fixing the two ends or the middle of the dust-proof plate; and Nylon rods are used to connect the tie rods at relative positions of two adjacent rails.

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