阅读说明：本技术 一种城轨车辆地坑式架修平台 (Pit type erection and repair platform for urban rail vehicle ) 是由 刘洪炉 赵卫彬 叶永念 洪勤 潘洵伟 闫明 于 2020-05-15 设计创作，主要内容包括：本发明公开了一种城轨车辆地坑式架修平台,包括保护箱、保护装置、两个支撑装置、除尘装置、悬挂装置；所述保护装置包括中心块、设于中心块上的多个第一转动盖板、设于所述多个第一转动盖板中相邻两个第一转动盖板上的多个保护组件；所述保护组件包括设于所述多个第一转动盖板中相邻两个第一转动盖板上的两个第二转动盖板；所述第一转动盖板可相对于所述中心块进行转动。所述第二转动盖板可相对于所述第一转动盖板进行转动,所述第二转动盖板可相对于所述另一个第二转动盖板进行转动。本发明保证了平时不会有灰尘进入设备内部,使设备内部长久保持干净。(The invention discloses a pit type frame repairing platform for an urban rail vehicle, which comprises a protective box, a protective device, two supporting devices, a dust removing device and a suspension device, wherein the protective box is arranged on the upper surface of the protective box; the protection device comprises a center block, a plurality of first rotating cover plates arranged on the center block, and a plurality of protection components arranged on two adjacent first rotating cover plates in the plurality of first rotating cover plates; the protection assembly comprises two second rotating cover plates arranged on two adjacent first rotating cover plates in the plurality of first rotating cover plates; the first rotating cover plate is rotatable relative to the center block. The second rotating cover plate is rotatable relative to the first rotating cover plate, and the second rotating cover plate is rotatable relative to the other second rotating cover plate. The invention ensures that no dust enters the equipment at ordinary times, and keeps the inside of the equipment clean for a long time.)

1. A pit type erection repair platform for urban rail vehicles comprises a protective box (1), a protective device (2) arranged on the protective box, two supporting devices (3) arranged on the protective box, a dust removal device (4) arranged on the supporting devices, and a suspension device (5) arranged on the supporting devices; the method is characterized in that: the protection device (2) comprises a center block (21), a plurality of first rotating cover plates (22) arranged on the center block, and a plurality of protection components arranged on two adjacent first rotating cover plates in the plurality of first rotating cover plates; the protection component comprises two second rotating cover plates (23) arranged on two adjacent first rotating cover plates in the plurality of first rotating cover plates; the first rotary flap (22) is rotatable relative to the central block (21), the second rotary flap (23) is rotatable relative to the first rotary flap (22), and the second rotary flap (23) is rotatable relative to the further second rotary flap (23).

2. The urban rail vehicle pit type under construction platform of claim 1, characterized in that: the protection assembly further comprises a guide sliding groove (25) arranged on the central block (21), a guide block (26) arranged on the guide sliding groove, a guide telescopic rod (27) used for connecting the guide block and the second rotating cover plate, a plurality of first ratchets (28) arranged on two sides of the guide sliding groove, two second ratchets (29) arranged on two sides of the guide block, two rotating rods (20) respectively arranged on the two second ratchets, and a first elastic piece (201) used for connecting the two second ratchets; the guide block (26) can move relative to the guide sliding groove (25), the telescopic guide rod (27) can rotate relative to the guide block (26), the telescopic guide rod (27) can rotate relative to the second rotating cover plate (23), the first ratchet (28) and the second ratchet (29) are arranged in a matched mode, the second ratchet (29) can rotate relative to the guide block (26), and the rotating rod (20) can rotate relative to the second ratchet (29).

3. The urban rail vehicle pit type under construction platform of claim 1, characterized in that: the supporting device (3) comprises a plurality of first telescopic rods (31), supporting rods (390) arranged on the first telescopic rods, and a plurality of fixing assemblies respectively arranged on the first telescopic rods; the fixing assembly comprises a guide rod (32), a plurality of gear teeth (33) arranged at the upper end of the guide rod, a first gear (34) arranged on the first telescopic rod, a second gear (35) arranged on the first gear, a third gear (36) arranged on the first telescopic rod, a transmission belt (37) sleeved on the first gear and the third gear, and a fixing rod (38) penetrating through the upper end of the first telescopic rod; the bracing piece (390) with first rotation apron (22) is corresponding the setting, the teeth of a cogwheel (33) with second gear (35) is the cooperation setting, first gear (34) can for first telescopic link (31) rotate, third gear (36) can for first telescopic link (31) rotate, dead lever (38) can for first telescopic link (31) remove, dead lever (38) with drive belt (37) are the cooperation setting.

4. The urban rail vehicle pit-type overhaul platform of claim 3, wherein: the fixing component also comprises a fixing groove (39) arranged on the fixing rod (38), a fixing plate (30) arranged on the first telescopic rod, a convex block (301) arranged on the fixing plate, a first groove (302) arranged on the fixing groove and a second groove (303) arranged on the fixing rod; the fixed plate (30) can be for first telescopic link (31) rotates, lug (301) with first recess (302) are the cooperation and set up, lug (301) with second recess (303) are the cooperation and set up, be equipped with the torsional spring in fixed plate (30), torsional spring one end connect in on fixed plate (30), the torsional spring other end connect in on first telescopic link (31).

5. The urban rail vehicle pit-type overhaul platform of claim 3, wherein: the dust removal device (4) comprises two dust removal tracks (41) respectively arranged on two support rods (390), two sliding blocks (42) respectively arranged on the two dust removal tracks, a connecting rod (43) arranged on the sliding blocks, a wave plate (44) arranged on the support rods and two dust removal components arranged on the connecting rod; the dust removal assembly comprises a dust removal plate (45) arranged on a connecting rod (43) and a limiting rod (46) used for connecting the dust removal plate and the connecting rod; the slide block (42) can move relative to the dust removal track (41).

6. The urban rail vehicle pit type under construction platform of claim 5, characterized in that: the dust removal assembly further comprises a limiting groove (47) arranged on the dust removal plate (45), a second elastic piece (48) used for connecting the limiting groove and the limiting rod, a plurality of cleaning pieces (49) arranged on the dust removal plate, a guide rod (40) arranged on the dust removal plate, and two rollers (401) arranged on the guide rod; the gag lever post (46) can for spacing groove (47) remove, the cross-shaped structure is personally submitted in the cross section of clearance piece (49), a plurality of clearance pieces (49) are evenly distributed along the length direction of dust removal board (45), gyro wheel (401) can for guide bar (40) rotate, gyro wheel (401) with wave board (44) are the cooperation and set up.

7. The urban rail vehicle pit-type overhaul platform of claim 3, wherein: the suspension device (5) comprises a suspension track (51) arranged on the support rod (390), a moving block (52) arranged on the suspension track, a second telescopic rod (53) arranged on the moving block, a hook (54) arranged at the bottom of the second telescopic rod, a plurality of first clamping plates (55) arranged on the suspension track, a top plate (56) arranged on the second telescopic rod and a second clamping plate (57) arranged on the top plate; the moving block (52) can move relative to the suspension track (51), and the second clamping plate (57) and the first clamping plate (55) are arranged in a matching mode.

8. The urban rail vehicle pit type under construction platform of claim 1, characterized in that: the protection device also comprises a plurality of hook components arranged on the first rotating cover plate (22); the hook assembly comprises a fixed frame (291) arranged on the first rotating cover plate, a fixed block (292) arranged on the fixed frame, a pull rod (293) arranged on the fixed block, a guide groove (294) arranged on the support rod and two fixed lugs (295) arranged on one side of the fixed frame; the fixed block can for fixed frame removes, the pull rod can for the guiding groove removes, fixed lug with the fixed block is the cooperation setting.

Technical Field

The invention belongs to the field of urban rail vehicle maintenance equipment, and particularly relates to a pit type frame repairing platform for an urban rail vehicle.

Background

Urban rails are one of the most important members of urban transportation in modern society, and are one of travel modes in life of people, but urban rail vehicles may have a series of problems after long-time operation, and a part of the problems occur in positions on the urban rail vehicles which are difficult to maintain, such as bottoms of the urban rail vehicles; generally, the urban rail vehicle is lifted by using modes such as an erection repair platform and the like in the prior art, and then the bottom of the vehicle is repaired, but the erection repair platform is placed outside for a long time, so that dust is easily accumulated on the surface of the erection repair platform or the surface of the erection repair platform is easily corroded.

Disclosure of Invention

The invention provides a pit type erection and repair platform for urban rail vehicles, which overcomes the defects of the prior art and ensures that no dust enters the interior of equipment when not in use and the interior of the equipment is kept clean for a long time.

In order to achieve the purpose, the invention adopts the following technical scheme: a pit type erection and repair platform for urban rail vehicles comprises a protective box, a protective device arranged on the protective box, two supporting devices arranged on the protective box, a dust removal device arranged on the supporting devices, and a suspension device arranged on the supporting devices; the protection device comprises a center block, a plurality of first rotating cover plates arranged on the center block, and a plurality of protection components arranged on two adjacent first rotating cover plates in the plurality of first rotating cover plates; the protection assembly comprises two second rotating cover plates arranged on two adjacent first rotating cover plates in the plurality of first rotating cover plates; the first rotating cover plate is rotatable relative to the center block. The second rotating cover plate is rotatable relative to the first rotating cover plate, and the second rotating cover plate is rotatable relative to the other second rotating cover plate.

According to the invention, through the arrangement of the first rotating cover plate, dust cannot enter the equipment when the equipment is not used, the conditions that the equipment is corroded or easily aged and the like due to the fact that the equipment accumulates dust for a long time are avoided, and the service life of the equipment is prolonged; through the setting of second rotation apron, guaranteed that the clearance of corner does not have the dust and gets into between a plurality of first rotation apron, guaranteed simultaneously that follow-up strutting arrangement and dust collector can not appear the condition of interfering when rising, avoided first rotation apron to shelter from strutting arrangement and dust collector completely and the strutting arrangement or the unable circumstances that rises of dust collector that lead to.

The protection assembly further comprises a guide sliding chute arranged on the central block, a guide block arranged on the guide sliding chute, a guide telescopic rod used for connecting the guide block and the second rotating cover plate, a plurality of first ratchets arranged on two sides of the guide sliding chute, two second ratchets arranged on two sides of the guide block, two rotating rods respectively arranged on the two second ratchets, and a first elastic piece used for connecting the two second ratchets; the guide block can move relative to the guide sliding groove, the telescopic guide rod can rotate relative to the guide block, the telescopic guide rod can rotate relative to the second rotary cover plate, the first ratchet and the second ratchet are arranged in a matched mode, the second ratchet can rotate relative to the guide block, and the rotary rod can rotate relative to the second ratchet; through the arrangement of the guide block, when the supporting device rises and drives the first rotating cover plate and the second rotating cover plate to turn over, the guide telescopic rod can push the guide block along the guide sliding groove under the driving of the second rotating cover plate, so that the turning process of the second rotating cover plate can move under the guide effect of the guide block, and the stability of the second rotating cover plate during turning over is improved; through the arrangement of the first ratchet and the second ratchet, when the supporting device resets downwards and drives the first rotating cover plate and the second rotating cover plate to overturn downwards, the guide block moves, and meanwhile, in the moving process of the guide block, the second ratchet generates certain resistance under the action of the first ratchet, so that the guide block cannot move in the guide sliding groove quickly, the situation that the guide block and the second rotating cover plate reset quickly is avoided, the situation that the first rotating cover plate and the second rotating cover plate or the joint of the first connecting cover plate and the central block is damaged due to large force generated in quick closing of the first rotating cover plate and the second rotating cover plate is avoided, the maintenance cost of equipment is reduced, meanwhile, the situation that the first rotating cover plate cannot be closed to be flush with the ground and tilted on the ground due to the damage of the joint of the first rotating cover plate and the central block is avoided, therefore, the situation that the first rotating cover plate tilted on the ground is sucked upwards and damaged due to overlarge airflow when the vehicle passes is avoided; through the arrangement of the rotating rod, when the second ratchet and the first ratchet are in mutual contact and generate resistance, the second ratchet can be helped to move to the other first ratchet by rotating the rod, the situation that the second ratchet is clamped on the first ratchet due to overlarge resistance between the first ratchet and the second ratchet is avoided, and the situation that the first rotating cover plate and the second rotating cover plate cannot reset is further avoided.

The supporting device comprises a plurality of first telescopic rods and a plurality of fixing components, wherein the supporting rods arranged on the first telescopic rods are respectively arranged on the first telescopic rods; the fixing assembly comprises a guide rod, a plurality of gear teeth arranged at the upper end of the guide rod, a first gear arranged on the first telescopic rod, a second gear arranged on the first gear, a third gear arranged on the first telescopic rod, a transmission belt sleeved on the first gear and the third gear, and a fixing rod penetrating through the upper end of the first telescopic rod; the supporting rod and the first rotating cover plate are correspondingly arranged, the gear teeth and the second gear are arranged in a matched mode, the first gear can rotate relative to the first telescopic rod, the third gear can rotate relative to the first telescopic rod, the fixed rod can move relative to the first telescopic rod, and the fixed rod and the transmission belt are arranged in a matched mode; through the arrangement of the first telescopic rod, when the urban rail vehicle needs to be lifted for maintenance, the first telescopic rod is extended to drive the supporting rod to move upwards, then the urban rail vehicle is lifted and stabilized through the supporting rod, the second gear can contact with a plurality of gear teeth while the first telescopic rod is extended and rotates under the driving of the gear teeth, then the second gear drives the first gear to rotate and drives the third gear to rotate through the driving belt, in the rotating process of the driving belt, the outer side of the driving belt is in contact with the fixed rod, so that the fixed rod moves towards one side of the first telescopic rod under the action of the driving belt, and the wheels of the urban rail vehicle are fixed through the fixed rod, and the condition that maintenance is difficult due to the rotation of the wheels when workers maintain the wheels or the bottom of the vehicle is avoided; through the setting of drive belt and dead lever for first telescopic link can drive the dead lever and move to the outside at the in-process of extension, has increased the synchronism between dead lever and the first telescopic link, has guaranteed that the bracing piece is when fixing city rail vehicle bottom, and the dead lever can fix the wheel, has increased the efficiency when vehicle maintenance.

The fixing assembly further comprises a fixing groove arranged on the fixing rod, a fixing plate arranged on the first telescopic rod, a convex block arranged on the fixing plate, a first groove arranged on the fixing groove and a second groove arranged on the fixing rod; the fixing plate can rotate relative to the first telescopic rod, the lug is matched with the first groove, the lug is matched with the second groove, a torsion spring is arranged in the fixing plate, one end of the torsion spring is connected to the fixing plate, and the other end of the torsion spring is connected to the first telescopic rod; through the arrangement of the fixing plate, when the fixing rod is not used, the fixing plate can be clamped in the fixing groove to fix the fixing rod, so that the situation that the fixing rod is displaced due to vibration generated when an urban rail vehicle passes through the fixing rod is avoided, the situation that a subsequent fixing rod cannot fix a wheel or the fixing rod is separated from the first telescopic rod due to the displacement of the fixing rod is further avoided, and the stability of the equipment is improved; through the setting of lug for the dead lever when fixing the wheel, the lug can cooperate the second recess to carry on spacingly to the dead lever, has avoided the dead lever the condition of displacement to appear in fixed wheel, has increased the stability when the fixed wheel of dead lever, has guaranteed that the pivoted condition can not appear in the wheel under the fixed action of dead lever, has increased the stability when urban rail vehicle maintains.

The dust removal device comprises two dust removal tracks respectively arranged on the two support rods, two sliding blocks respectively arranged on the two dust removal tracks, a connecting rod arranged on the sliding blocks, a wave plate arranged on the support rods and two dust removal assemblies arranged on the connecting rod; the dust removal assembly comprises a dust removal plate arranged on the connecting rod and a limiting rod used for connecting the dust removal plate and the connecting rod; the sliding block can move relative to the dust removal track; before maintaining the vehicle, at first clear up once through dust collector to the vehicle bottom, avoided the staff because the maintenance operation that the vehicle bottom dust is too much and lead to becomes the condition of difficulty, start the dust removal track and drive the slider and remove, and then drive the dust removal board through the connecting rod and remove under the condition of laminating vehicle bottom, and clear up the dust removal to the vehicle bottom through the dust removal board at the in-process that removes, guaranteed that all positions in vehicle bottom can all be once cleared up, the effect of clearance has been increased, efficiency when having improved follow-up maintenance.

The dust removal assembly further comprises a limiting groove arranged on the dust removal plate, a second elastic piece used for connecting the limiting groove and the limiting rod, a plurality of cleaning pieces arranged on the dust removal plate, a guide rod arranged on the dust removal plate and two rollers arranged on the guide rod; the limiting rod can move relative to the limiting groove, the cross section of each cleaning piece is of a cross structure, the cleaning pieces are uniformly distributed along the length direction of the dust removing plate, the roller can rotate relative to the guide rod, and the roller and the wave plate are arranged in a matched mode; when the dust removing plate moves, the two rollers can contact the wave plate, the rollers are driven by the wave plate to move along the wave plate, the dust removing plate is driven to move relative to the limiting rod, and the two rollers can move towards two sides when the bottom of the vehicle is cleaned, so that the dust removing plate can clean the bottom of the vehicle by forming transverse and longitudinal forces, the cleaning effect of the dust removing plate on the bottom of the vehicle is improved, and meanwhile, the dust removing plate is matched with the cross cleaning piece, so that various corners of the bottom of the vehicle can be cleaned; through the setting of gag lever post and spacing groove for the dust removal board has increased the stability of dust removal board when removing to both sides, has avoided the dust removal board to appear the condition of rocking when removing to both sides.

The hanging device comprises a hanging track arranged on the supporting rod, a moving block arranged on the hanging track, a second telescopic rod arranged on the moving block, a hook arranged at the bottom of the second telescopic rod, a plurality of first clamping plates arranged on the hanging track, a top plate arranged on the second telescopic rod and a second clamping plate arranged on the top plate; the moving block can move relative to the suspension track, and the second clamping plate and the first clamping plate are arranged in a matched mode; through hanging orbital setting, after the bracing piece is fixed with vehicle jack-up, when the staff cleared up the wheel of vehicle or the vehicle bottom, can place the deposit thing that is equipped with the instrument with tool bags etc. on the couple, when the maintenance position needs to be changed, the staff up lifts the lower extreme of second telescopic link, make the second cardboard break away from the position of first cardboard, drive the removal piece through the second telescopic link afterwards and remove to the position next door that needs the maintenance, and loosen the second telescopic link and make the second cardboard fall into between two first cardboards and fix the second cardboard, need often come out the condition of change instrument or because the too much and unable quick travel of instrument that leads to the maintenance position when having avoided the staff to maintain, the convenience when having increased the staff maintenance, the efficiency of staff maintenance has been improved.

The protection device also comprises a plurality of hook assemblies arranged on the first rotating cover plate; the hook assembly comprises a fixed frame arranged on the first rotating cover plate, a fixed block arranged on the fixed frame, a pull rod arranged on the fixed block, a guide groove arranged on the support rod and two fixed convex blocks arranged on one side of the fixed frame; the fixed block can move relative to the fixed frame, the pull rod can move relative to the guide groove, and the fixed lug and the fixed block are arranged in a matched mode; through the arrangement of the pull rod and the guide groove, when the support rod is not used, the pull rod is buckled into one end of the guide groove, so that the first rotating cover plate can be fixed relative to the support rod under the fixing action of the pull rod, the condition that the first rotating cover plate is upwards opened by airflow caused by overlarge airflow on the ground surface when a vehicle passes through is avoided, the condition that the first rotating cover plate is knocked by the running vehicle or dust cannot be blocked and the like caused by the upwards opening of the first rotating cover plate is further avoided, in the process that the support rod upwards moves and pushes away the first rotating cover plate, the pull rod can move along the guide groove and is separated from the other end of the guide groove, so that the connecting positions of the first rotating cover plate and the support rod are separated from each other, the condition that the support rod cannot fix the vehicle or the first rotating cover plate is driven by the support rod to be damaged because the first rotating cover plate and the support rod are not, the maintenance cost of the equipment is reduced; through the setting of two fixed lugs, when the opening part of guiding groove the foreign matter appears and leads to guiding groove one end to plug up or the pull rod blocks each other with the guiding groove, the bracing piece can drive the fixed block and remove to two fixed lug's direction at the in-process that rises to make the fixed block deviate from two fixed lugs under the thrust effect of bracing piece, avoided because the pull rod can't break away from the guiding groove and the first condition of rotating the apron and can't break away from the bracing piece that leads to, reduced the maintenance cost of equipment.

In summary, the invention has the following advantages: when not in use, no dust enters the inside of the equipment, so that the inside of the equipment is kept clean for a long time.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a partial enlarged view of fig. 2 of the present invention.

Fig. 4 is a side view of the present invention.

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 in accordance with the present invention.

Fig. 6 is a partial enlarged view of the invention at a in fig. 5.

Fig. 7 is a partial enlarged view of the invention at B in fig. 5.

Fig. 8 is a partial enlarged view of the invention at C in fig. 5.

Fig. 9 is an enlarged view of a portion of the invention at D in fig. 5.

FIG. 10 is a cross-sectional view taken along line B-B of FIG. 4 in accordance with the present invention.

Fig. 11 is a partial enlarged view of fig. 10 of the present invention.

FIG. 12 is a schematic view of the cleaning member of the present invention.

Fig. 13 is a cross-sectional view taken along line C-C of fig. 4 in accordance with the present invention.

Fig. 14 is an enlarged view of a portion of fig. 13 a according to the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-12, a pit type erection repair platform for urban rail vehicles comprises a protective box 1, a protective device 2 arranged on the protective box, two supporting devices 3 arranged on the protective box, a dust removing device 4 arranged on the supporting devices, and a suspension device 5 arranged on the supporting devices; this application needs a plurality of framework maintenance platforms to use in coordination each other in-service use, and specific platform quantity can be adjusted according to actual conditions.

The protection device 2 comprises a central block 21, a plurality of first rotating cover plates 22, a plurality of protection components and a plurality of hook components; a plurality of first rotating cover plates 22 are arranged on the central block, and a plurality of protection components are arranged on two adjacent first rotating cover plates in the plurality of first rotating cover plates; the protection component comprises two second rotating cover plates 23, a guide sliding groove 25, a guide block 26, a guide telescopic rod 27, a plurality of first ratchets 28, two second ratchets 29, two rotating rods 20 and a first elastic piece 201; two second rotating cover plates 23 are arranged on two adjacent first rotating cover plates in the plurality of first rotating cover plates; said first rotatable cover being rotatable relative to said center block, said second rotatable cover being rotatable relative to said first rotatable cover, said second rotatable cover being rotatable relative to said another second rotatable cover; the guide sliding groove 25 is arranged on the central block 21, the guide block 26 is arranged on the guide sliding groove, the guide telescopic rod 27 is used for connecting the guide block and the second rotating cover plate, the plurality of first ratchets 28 are arranged on two sides of the guide sliding groove, the two second ratchets 29 are arranged on two sides of the guide block, the two rotating rods 20 are respectively arranged on the two second ratchets, and the first elastic piece 201 is used for connecting the two second ratchets; the guide block can move relative to the guide sliding groove, the telescopic guide rod can rotate relative to the guide block, the telescopic guide rod can rotate relative to the second rotary cover plate, the first ratchet teeth and the second ratchet teeth are meshed with each other, the second ratchet teeth can rotate relative to the guide block, and the rotary rod can rotate relative to the second ratchet teeth; the first elastic piece is a spring; a plurality of hook assemblies are arranged on the first rotating cover plate 22, and each hook assembly comprises a fixing frame 291, a fixing block 292, a pull rod 293, a guide groove 294 and two fixing lugs 295; the fixing frame 291 is arranged on the first rotating cover plate, the fixing block 292 is arranged on the fixing frame, the pull rod 293 is arranged on the fixing block, the guide groove 294 is arranged on the support rod, and the two fixing lugs 295 are arranged on one side of the fixing frame; the fixed block can for fixed frame removes, the pull rod can for the guiding groove removes, fixed lug is right the fixed block plays the fixed action.

The supporting device 3 comprises a plurality of first telescopic rods 31, a supporting rod 390 and a plurality of fixing components; the support rod 390 is disposed on the plurality of first telescopic rods, and the plurality of fixing components are respectively disposed on the plurality of first telescopic rods; the fixing component comprises a guide rod 32, a plurality of gear teeth 33, a first gear 34, a second gear 35, a third gear 36, a transmission belt 37, a fixing rod 38, a fixing groove 39, a fixing plate 30, a bump 301, a first groove 302 and a second groove 303; the plurality of gear teeth 33 are arranged at the upper end of the guide rod, the first gear 34 is arranged on the first telescopic rod, the second gear 35 is arranged on the first gear, the third gear 36 is arranged on the first telescopic rod, the transmission belt 37 is sleeved on the first gear and the third gear, and the fixing rod 38 is arranged at the upper end of the first telescopic rod in a penetrating manner; the supporting rod and the first rotating cover plate are correspondingly arranged, the gear teeth are meshed with the second gear, the first gear can rotate relative to the first telescopic rod, the third gear can rotate relative to the first telescopic rod, the fixed rod can move relative to the first telescopic rod, and the bottom of the fixed rod is meshed with the transmission belt; the first telescopic rod is a hydraulic rod driven by a hydraulic cylinder, and the transmission belt is a chain; the fixing groove 39 is arranged on the fixing rod 38, the fixing plate 30 is arranged on the first telescopic rod, the projection 301 is arranged on the fixing plate, the first groove 302 is arranged on the fixing groove, and the second groove 303 is arranged on the fixing rod; the fixed plate can rotate for first telescopic link, the lug can be detained in the first recess, the lug can be detained in the second recess, be equipped with the torsional spring in the fixed plate, torsional spring one end connect in on the fixed plate, the torsional spring other end connect in on the first telescopic link.

The dust removing device 4 comprises two dust removing rails 41, two sliding blocks 42, a connecting rod 43, a wave plate 44 and two dust removing components; the two dedusting rails 41 are respectively arranged on the two support rods 390, the two sliding blocks 42 are respectively arranged on the two dedusting rails, the connecting rod 43 is arranged on the sliding blocks, the wave plate 44 is arranged on the support rods, and the two dedusting components are arranged on the connecting rod; the dust removal assembly comprises a dust removal plate 45, a limiting rod 46, a limiting groove 47, a second elastic piece 48, a plurality of cleaning pieces 49, a guide rod 40 and two rollers 401; the dust removing plate 45 is arranged on the connecting rod 43, and the limiting rod 46 is used for connecting the dust removing plate and the connecting rod; the sliding block can move relative to the dust removal track, and the dust removal track is an electric track; the limiting groove 47 is arranged on the dust removing plate 45, the second elastic piece 48 is used for connecting the limiting groove and the limiting rod, the plurality of cleaning pieces 49 are arranged on the dust removing plate, the guide rod 40 is arranged on the dust removing plate, and the two rollers 401 are arranged on the guide rod; the limiting rod can move relative to the limiting groove, the cross section of each cleaning piece is of a cross structure, the cleaning pieces are uniformly distributed along the length direction of the dust removing plate, the roller can rotate relative to the guide rod, and the roller can roll along the wave plate; the second elastic piece is a spring, and the cleaning piece is a brush.

The suspension device 5 comprises a suspension track 51, a moving block 52, a second telescopic rod 53, a hook 54, a plurality of first clamping plates 55, a top plate 56 and a second clamping plate 57; the hanging track 51 is arranged on the supporting rod 390, the moving block 52 is arranged on the hanging track, the second telescopic rod 53 is arranged on the moving block, the hook 54 is arranged at the bottom of the second telescopic rod, the plurality of first clamping plates 55 are arranged on the hanging track, the top plate 56 is arranged on the second telescopic rod, and the second clamping plates 57 are arranged on the top plate; the moving block can move relative to the hanging track, and the second clamping plates can be clamped between two adjacent first clamping plates for limiting.

The specific working principle is as follows: when the urban rail vehicle needs to be lifted for maintenance, the first telescopic rod 31 is extended to drive the supporting rod 390 to move upwards, the first rotating cover plate 22 and the second rotating cover plate 23 are pushed open in the process that the supporting rod 390 moves upwards, then the urban rail vehicle is lifted and stabilized by the continuous upward movement of the supporting rod 390, the second gear 35 can contact with a plurality of gear teeth 33 and rotate under the driving of the gear teeth 33 while the first telescopic rod 31 is extended, then the second gear 35 drives the first gear 34 to rotate and drives the third gear 36 to rotate through the driving belt 37, and in the rotating process of the driving belt 37, the outer side of the driving belt 37 is in contact with the fixed rod 38, so that the fixed rod 38 moves to one side of the first telescopic rod 31 under the action of the driving belt 37, and the wheels of the urban rail vehicle are fixed through the fixed rod 38; before the vehicle is maintained, firstly, the bottom of the vehicle is cleaned once through the dust removing device 4, the dust removing track 41 is started to drive the slide block 42 to move, and the dust removing plate 45 is driven by the connecting rod 43 to move under the condition of being attached to the bottom of the vehicle, and the bottom of the vehicle is cleaned and dedusted by the dedusting plate 45 in the moving process, so that all positions of the bottom of the vehicle can be cleaned once, meanwhile, during the movement of the dust removing plate 45, the two rollers 401 contact the wave plate 44, and the roller 401 moves along the wave plate 44 by the driving of the wave plate 44, thereby driving the dust removing plate 45 to move relative to the limiting rod 46 and moving to two sides when cleaning the bottom of the vehicle, the dust removing plate 45 can clean the force in the transverse direction and the longitudinal direction formed at the bottom of the vehicle, and various corners of the bottom of the vehicle can be cleaned; after the supporting rod 390 jacks up and fixes the vehicle, when a worker cleans the wheels or the bottom of the vehicle, the worker can place a tool bag and other objects with tools on the hook 54, when the position needs to be replaced and maintained, the worker lifts the lower end of the second telescopic rod 53 upwards to separate the second clamping plate 57 from the position of the first clamping plate 55, then the second telescopic rod 53 drives the moving block 52 to move to the side of the position needing to be maintained, and the second telescopic rod 53 is loosened to enable the second clamping plate 57 to fall between the two first clamping plates 55 and fix the second clamping plate 57, so that the worker can replace various tools conveniently; when the vehicle is repaired, the supporting device 3 is reset downwards and drives the first rotating cover plate 22 and the second rotating cover plate 23 to turn downwards, the guide block 26 moves, and meanwhile, in the moving process of the guide block 26, the second ratchet 29 generates certain resistance under the action of the first ratchet 28, so that the guide block 26 moves slowly in the guide sliding groove 25, and the first rotating cover plate 22 and the second rotating cover plate 23 are prevented from being quickly covered and abraded.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.