CN117587910A

CN117587910A - Tunnel drainage device

Info

Publication number: CN117587910A
Application number: CN202311657101.1A
Authority: CN
Inventors: 赵德; 曹之伟; 邓兴兴
Original assignee: Guizhou Road and Bridge Group Co Ltd
Current assignee: Guizhou Road and Bridge Group Co Ltd
Priority date: 2023-12-05
Filing date: 2023-12-05
Publication date: 2024-02-23

Abstract

The invention provides a tunnel drainage device, which relates to the field of municipal tunnel drainage and comprises a drainage lapping plate, a drainage traction rope, a drainage floating plate, a drainage pump, an anti-falling box, a drainage driving motor, a drainage protection mechanism and a drainage auxiliary mechanism; the drainage traction rope is arranged in the middle of the drainage lapping plate; the discharge floating plate is arranged below the discharge lapping plate; the drainage pump is fixedly connected to the middle position of the drainage floating plate; the anti-falling box is fixedly connected to the middle position above the drainage lapping plate; the drainage driving motor is fixedly connected above the drainage floating plate; the drainage protection mechanism is arranged above the drainage lapping plate; the drainage auxiliary mechanism is arranged above the drainage floating plate, so that the protection of a drainage working area is realized, the situation that external personnel enter the drainage area is avoided, the safety of a working environment is ensured, and the problem that the drainage pump is damaged due to the fact that the drainage pump falls easily when the drainage pump is pulled out by the existing worker is solved.

Description

Tunnel drainage device

Technical Field

The invention relates to the technical field of municipal tunnel drainage, in particular to a tunnel drainage device.

Background

In the municipal cable tunnel operation process, because of conditions such as heavy rain, infiltration, the ponding condition can appear in the cable tunnel, and current when the ponding appears in the cable tunnel, generally the well head of staff with the tunnel is opened, then put into the tunnel with the drain pump inside, through the pump to the ponding suction in the tunnel outside drainage pipe in.

The prior publication number is: the invention of CN105756170B discloses an automatic drainage device for a cable tunnel, which comprises a water level monitoring device, a water level control intermediate relay, a motor main alternating-current contactor and a submersible pump, wherein the water level monitoring device monitors the water level of the tunnel, and when the water level reaches a warning water level, the water level control intermediate relay is triggered to enable the motor main alternating-current contactor to be closed, and the submersible pump corresponding to the motor main alternating-current contactor is opened. Through water level monitoring device, trigger the water pump drainage, prevent cable trench ponding.

However, when current cable tunnel drainage is being carried out, need the workman to pull out the drain pump in the tunnel after the drainage is accomplished, because the drain pump is comparatively heavy, when the workman is pulling out when using the haulage rope, the haulage rope surface is soaked by water, leads to the workman to appear the drain pump easily and fall when pulling out the drain pump, leads to the drain pump to damage.

Disclosure of Invention

In view of the above, the invention provides a tunnel drainage device, which has the advantages of realizing the protection of a drainage work area, avoiding the outside personnel from entering the drainage area, ensuring the safety of the work environment, enabling the anti-falling friction wheel to lock the traction rope, enabling the traction rope not to fall down any more, avoiding the drainage pump from falling down and ensuring the integrity of the drainage pump.

The invention provides the purpose and the effect of a tunnel drainage device, which comprises a drainage lapping plate, a drainage traction rope, a drainage floating plate, a drainage pump, an anti-falling box, a drainage driving motor, a drainage protection mechanism and a drainage auxiliary mechanism;

the drainage traction rope is arranged in the middle of the drainage lapping plate;

the discharge floating plate is arranged below the discharge lapping plate;

the upper end of the drainage pump is fixedly connected with the lower end of the drainage traction rope, and the water outlet pipe of the drainage pump is communicated with an external drainage ditch through a hose;

the anti-falling box is fixedly connected to the middle position above the drainage lapping plate, and the drainage traction rope is arranged in the anti-falling box;

the drainage driving motor is fixedly connected above the drainage floating plate;

the drainage protection mechanism is arranged above the drainage lapping plate;

the drainage auxiliary mechanism is arranged above the drainage floating plate.

Further, the drainage protection mechanism includes: a drain protection bar and a drain contact plate;

the drainage protection rods are provided with a plurality of groups, and the plurality of groups of drainage protection rods are respectively connected to the periphery of the drainage lapping plate in a rotating way;

the drainage contact plate is provided with the multiunit, multiunit drainage contact plate all is the circular arc plate structure, multiunit drainage contact plate fixed connection respectively in the inboard of drainage guard bar.

Further, the drainage protection mechanism further comprises: the device comprises a protection driving gear, a protection limiting plate, a protection driving rack and a protection reset spring;

the protection driving gears are provided with a plurality of groups, the plurality of groups of protection driving gears are respectively and rotatably connected to the periphery of the drainage lapping plate, and the plurality of groups of protection driving gears are coaxially and fixedly connected with the drainage protection rod;

the protective limiting plates are provided with a plurality of groups, and the protective limiting plates are respectively and fixedly connected to the periphery above the drainage lapping plate;

the protection driving racks are provided with a plurality of groups, the plurality of groups of protection driving racks are respectively connected below the protection limiting plate in a sliding manner, and the plurality of groups of protection driving racks are meshed with the protection driving gears;

the protection reset spring is provided with the multiunit, multiunit protection reset spring respectively fixed connection in the upper end of protection drive rack, multiunit protection reset spring's upper end all with protection limiting plate fixed connection.

Further, the drainage protection mechanism further comprises: anti-falling friction wheel;

the anti-falling friction wheel is rotationally connected in the anti-falling box, an anti-slip pattern structure is arranged on the periphery of the anti-falling friction wheel, and the anti-falling friction wheel is in friction contact with the drainage traction rope.

Further, the drainage protection mechanism further comprises: an anti-falling fixing piece, an anti-falling connecting piece, an anti-falling bolt and an anti-falling connecting spring;

the anti-falling fixing piece is fixedly connected to the inside of the anti-falling box, and a plurality of groups of slot structures are formed in the anti-falling fixing piece;

the anti-falling connecting piece is coaxially and fixedly connected to the front of the anti-falling friction wheel;

the anti-falling bolt is connected above the inner part of the anti-falling connecting piece in a sliding way;

the anti-falling connecting spring is fixedly connected inside the anti-falling connecting piece, and the upper end of the anti-falling connecting spring is fixedly connected with the anti-falling bolt.

Further, the drainage assisting mechanism comprises: a drain protection groove;

the drainage protection groove is formed in the rear of the drainage floating plate.

Further, the drainage assisting mechanism further comprises: a drainage limit wheel;

the drainage limiting wheels are provided with a plurality of groups, and the plurality of groups of drainage limiting wheels are respectively connected to the periphery of the drainage floating plate in a rotating mode.

Further, the drainage assisting mechanism further comprises: a drainage driving wheel and a blow-drying fan;

the two groups of drainage driving wheels are coaxially and fixedly connected, each drainage driving wheel consists of two groups of belt wheels which are in transmission connection through a synchronous belt, and each drainage driving wheel is coaxially and fixedly connected with a rotating shaft of a drainage driving motor;

the fan is fixedly connected to the rear of the discharge floating plate, the fan is arranged at the front end of the drainage protection groove, and the fan blade rotating shaft of the fan is coaxially and fixedly connected with a group of drainage driving wheels at the rear.

Further, the drainage assisting mechanism further comprises: a drainage anti-blocking cage;

the drainage anti-blocking cage flange is connected below the water inlet pipe of the drainage pump.

Further, the drainage assisting mechanism further comprises: an anti-blocking driving disc, an anti-blocking driving piece, an anti-blocking transmission piece, an anti-blocking guide rod and an anti-blocking cleaning piece;

the anti-blocking driving disc is coaxially and fixedly connected to the front ends of a group of front drainage driving wheels;

the anti-blocking driving piece is fixedly connected to the front centrifugal position of the anti-blocking driving disc;

the anti-blocking driving piece is provided with a rectangular groove structure, and the anti-blocking driving piece is arranged in the rectangular groove of the anti-blocking driving piece;

the anti-blocking guide rod is connected to the front end of the discharge floating plate in a sliding manner, and the upper end of the anti-blocking guide rod is fixedly connected with the anti-blocking transmission part;

the anti-blocking cleaning piece is of a rectangular frame-shaped structure, is connected to the periphery of the drainage anti-blocking cage in a sliding mode, and is fixedly connected to the lower end of the anti-blocking guide rod.

Advantageous effects

According to the invention, through the arrangement of the drainage protection mechanism, when drainage is carried out in a cable tunnel, at the moment, the drainage lapping plate is placed at the wellhead position, the rack is extruded at the moment, the rack moves upwards to drive the gear to rotate, the gear rotates to drive the drainage protection rod to rotate, the drainage protection rod rotates to protect a drainage working area, external personnel are prevented from entering the drainage area, the safety of a working environment is ensured, meanwhile, when a worker pulls the drainage pump upwards to fall, at the moment, the drainage pump pulls down the traction rope, the traction rope moves rapidly downwards to drive the anti-falling friction wheel to rotate, the anti-falling friction wheel rotates to drive the anti-falling connecting piece to rotate, the anti-falling connecting piece rotates to throw out the anti-falling plug pin, at the moment, the anti-falling friction wheel stops rotating, the traction rope is locked, the drainage pump is prevented from falling, and the integrity of the drainage pump is ensured.

According to the invention, through the arrangement of the drainage auxiliary mechanism, when the tunnel is drained, the drainage floating plate is placed in the tunnel, the cable is protected through the arrangement of the drainage protection groove, the cable is prevented from being knocked by the drainage pump, then the motor is turned on, the motor rotates to drive the drying fan to rotate, the drying fan is used for drying the cable, meanwhile, the rotating shaft of the motor rotates to drive the crank sliding block mechanism to act, the filter screen is cleaned through the up-and-down movement of the sliding block, the water inlet of the drainage pump is prevented from being blocked by accumulated water sundries in the tunnel, and the stable operation of the drainage pump is ensured.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings described below are only for illustration of some embodiments of the invention and are not intended to limit the invention.

In the drawings:

fig. 1 is a schematic overall structure of an embodiment of the present invention.

Fig. 2 is a schematic view of a drain shield bar according to an embodiment of the present invention.

Fig. 3 is a schematic view of a blow-drying fan according to an embodiment of the present invention.

Fig. 4 is a schematic view of a drainage limiting wheel structure according to an embodiment of the present invention.

Fig. 5 is a schematic view of a drainage assist mechanism according to an embodiment of the present invention.

Fig. 6 is a schematic view of a drain protection mechanism according to an embodiment of the present invention.

Fig. 7 is a schematic view of a fall arrest friction wheel construction according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a fall arrest fastener according to an embodiment of the present invention.

List of reference numerals

1. A drainage lapping plate; 101. a drain protection rod; 102. a drain contact plate; 103. a protective drive gear; 104. protective limiting plates; 105. a protective drive rack; 106. a protective return spring; 107. anti-falling friction wheel; 108. an anti-falling fixing piece; 109. an anti-falling connecting piece; 110. an anti-falling bolt; 111. an anti-falling connecting spring; 2. a drainage traction rope; 3. discharging the floating plate; 301. a drain protection groove; 302. a drainage limit wheel; 303. a drainage driving wheel; 304. blowing the fan; 305. a drainage anti-blocking cage; 306. an anti-blocking driving disc; 307. an anti-blocking driving member; 308. anti-blocking transmission parts; 309. anti-blocking guide rods; 310. an anti-blocking cleaning member; 4. a draining pump; 5. an anti-falling box; 6. and (5) draining the water to drive the motor.

Detailed Description

Embodiment one: please refer to fig. 1 to 8:

the invention provides a tunnel drainage device which comprises a drainage lapping plate 1, a drainage traction rope 2, a drainage floating plate 3, a drainage pump 4, an anti-falling box 5, a drainage driving motor 6 and a drainage protection mechanism;

the drainage traction rope 2 is arranged in the middle of the drainage lapping plate 1;

the discharge floating plate 3 is arranged below the discharge lapping plate 1;

the drainage pump 4 is fixedly connected to the middle position of the drainage floating plate 3, the upper end of the drainage pump 4 is fixedly connected with the lower end of the drainage traction rope 2, and the water outlet pipe of the drainage pump 4 is communicated with an external drainage ditch through a hose;

the anti-falling box 5 is fixedly connected to the middle position above the drainage lapping plate 1, and the drainage haulage rope 2 is arranged in the anti-falling box 5;

the drainage driving motor 6 is fixedly connected above the drainage floating plate 3;

the drain protection mechanism is arranged above the drain lapping plate 1.

Wherein, drainage protection mechanism includes: the drainage protection rod 101, the drainage contact plate 102, the protection driving gear 103, the protection limiting plate 104, the protection driving rack 105, the protection reset spring 106, the anti-falling friction wheel 107, the anti-falling fixing piece 108, the anti-falling connecting piece 109, the anti-falling plug 110 and the anti-falling connecting spring 111;

the drainage protection rods 101 are provided with a plurality of groups, and the drainage protection rods 101 are respectively connected to the periphery of the drainage lapping plate 1 in a rotating way;

the drainage contact plates 102 are provided with a plurality of groups, the drainage contact plates 102 are all of arc plate structures, and the drainage contact plates 102 are fixedly connected to the inner sides of the drainage protection rods 101 respectively;

the protection driving gears 103 are provided with a plurality of groups, the plurality of groups of protection driving gears 103 are respectively and rotatably connected to the periphery of the drainage lapping plate 1, and the plurality of groups of protection driving gears 103 are coaxially and fixedly connected with the drainage protection rod 101;

the protective limiting plates 104 are provided with a plurality of groups, and the protective limiting plates 104 are respectively and fixedly connected to the periphery above the drainage lapping plate 1;

the protection driving racks 105 are provided with a plurality of groups, the plurality of groups of protection driving racks 105 are respectively and slidably connected below the protection limiting plate 104, and the plurality of groups of protection driving racks 105 are meshed with the protection driving gear 103;

the protection reset springs 106 are provided with a plurality of groups, the plurality of groups of protection reset springs 106 are respectively and fixedly connected to the upper ends of the protection driving racks 105, and the upper ends of the plurality of groups of protection reset springs 106 are fixedly connected with the protection limiting plates 104;

the anti-falling friction wheel 107 is rotationally connected inside the anti-falling box 5, an anti-sliding pattern structure is arranged on the periphery of the anti-falling friction wheel 107, and the anti-falling friction wheel 107 is in friction contact with the drainage traction rope 2;

the anti-falling fixing piece 108 is fixedly connected inside the anti-falling box 5, and a plurality of groups of slot structures are formed in the anti-falling fixing piece 108;

the anti-falling connecting piece 109 is coaxially and fixedly connected to the front of the anti-falling friction wheel 107;

the anti-falling latch 110 is slidably connected above the inside of the anti-falling connector 109;

the anti-falling connecting spring 111 is fixedly connected inside the anti-falling connecting piece 109, and the upper end of the anti-falling connecting spring 111 is fixedly connected with the anti-falling bolt 110.

In use, when needs carry out the drainage to municipal cable tunnel, place the top of tunnel well head with drainage lapping plate 1 this moment, protection drive rack 105 is pushed upwards to move, protection drive rack 105 upwards moves and drives protection drive gear 103 rotation, protection drive gear 103 rotates and drives drainage guard bar 101 rotation, drainage guard bar 101 rotates and has realized the protection to drainage work area, avoided external personnel to be close to, then the workman slowly drops down through drainage haulage rope 2 and discharges floating plate 3, until discharge floating plate 3 contacts with the surface of water, open drain pump 4 this moment, drain pump 4 has realized the drainage operation in the cable tunnel, upwards pulling drainage haulage rope 2 after the drainage is accomplished, drainage haulage rope 2 upwards moves and drives drain pump 4 upwards, when upwards pulling drainage haulage rope 2, if the workman appears the unhairing, drainage haulage rope 2 is pulled down by drain pump 4 this moment, drainage haulage rope 2 fast downwards moves and drives anti-falling friction wheel 107 rotation, anti-falling friction wheel 107 rotation this moment, anti-falling connection 109 fast rotation is with anti-falling 110 outwards, anti-falling down 110 throws out, anti-falling friction wheel 107 insert the inside anti-falling connection 107, anti-falling friction wheel 107 rotation stop, anti-falling connection 107 has no more guaranteed, anti-falling friction wheel 107 rotation stop, the safety joint when the drain down is stopped.

Embodiment two:

on the basis of the first embodiment, as shown in fig. 1 to 5, a drainage assisting mechanism is further included, which is provided above the drainage floating plate 3,

wherein, drainage auxiliary mechanism is including: the drain protection groove 301, the drain limit wheel 302, the drain driving wheel 303, the blow-drying fan 304, the drain anti-blocking cage 305, the anti-blocking driving disk 306, the anti-blocking driving piece 307, the anti-blocking driving piece 308, the anti-blocking guide rod 309 and the anti-blocking cleaning piece 310;

the drain protection groove 301 is arranged at the rear of the drain floating plate 3;

the drainage limiting wheels 302 are provided with a plurality of groups, and the drainage limiting wheels 302 are respectively connected to the periphery of the drainage floating plate 3 in a rotating way;

two groups of drainage driving wheels 303 are arranged, the two groups of drainage driving wheels 303 are coaxially and fixedly connected, the two groups of drainage driving wheels 303 are composed of two groups of belt wheels which are connected through a synchronous belt in a driving way, and the two groups of drainage driving wheels 303 are coaxially and fixedly connected with a rotating shaft of a drainage driving motor 6;

the blow-drying fan 304 is fixedly connected to the rear of the discharge floating plate 3, the blow-drying fan 304 is arranged at the front end of the drainage protection groove 301, and the fan blade rotating shaft of the blow-drying fan 304 is coaxially and fixedly connected with a group of drainage driving wheels 303 at the rear;

the drain anti-blocking cage 305 is connected below the water inlet pipe of the drain pump 4 in a flange manner;

the anti-blocking driving disc 306 is coaxially and fixedly connected to the front ends of a group of front drain driving wheels 303;

the anti-blocking driving part 307 is fixedly connected to the front centrifugal part of the anti-blocking driving disc 306;

the anti-blocking driving part 308 is provided with a rectangular groove structure, and the anti-blocking driving part 307 is arranged inside the rectangular groove of the anti-blocking driving part 308;

the anti-blocking guide rod 309 is slidably connected to the front end of the discharge floating plate 3, and the upper end of the anti-blocking guide rod 309 is fixedly connected with the anti-blocking transmission member 308;

the anti-blocking cleaning piece 310 is of a rectangular frame-shaped structure, the anti-blocking cleaning piece 310 is slidably connected to the periphery of the drain anti-blocking cage 305, and the anti-blocking cleaning piece 310 is fixedly connected to the lower end of the anti-blocking guide rod 309.

In use, when carrying out drainage to municipal cable tunnel, the inboard of drain protection groove 301 is arranged in with the cable in the tunnel this moment, drain protection groove 301 has avoided drain pump 4 wearing and tearing cable when the below, simultaneously when putting drain pump 4 down, drain limiting wheel 302 and the inner wall contact in tunnel, guaranteed the steady of drain pump 4 and put down, when carrying out the drainage, open drainage driving motor 6, the pivot rotation of drainage driving motor 6 drives drainage drive wheel 303 rotation, drainage drive wheel 303 rotation drives the flabellum of weather fan 304 and rotates, weather the flabellum rotation of fan 304 has realized the weather to cable surface drop, the damage of sewage to the cable has been reduced, simultaneously drainage drive wheel 303 rotation still drives anti-blocking driving disk 306 rotation, anti-blocking driving disk 306 rotation drives anti-blocking driving piece 307 rotation, anti-blocking driving piece 308 reciprocates drives anti-blocking guide bar 309, anti-blocking guide bar 309 reciprocates, anti-blocking cleaning piece 310 reciprocates, the cleaning of anti-blocking cleaning piece 310 has realized the cleaning to drain cage, and stable running of anti-blocking drain pump 305 in the assurance of drain pump 4.

Claims

1. The tunnel drainage device comprises a drainage lapping plate (1), a drainage traction rope (2), a drainage floating plate (3), a drainage pump (4), an anti-falling box (5), a drainage driving motor (6), a drainage protection mechanism and a drainage auxiliary mechanism; the method is characterized in that: the drainage traction rope (2) is arranged in the middle of the drainage lapping plate (1); the discharge floating plate (3) is arranged below the drainage lapping plate (1); the drainage pump (4) is fixedly connected to the middle position of the drainage floating plate (3), the upper end of the drainage pump (4) is fixedly connected with the lower end of the drainage traction rope (2), and the water outlet pipe of the drainage pump (4) is communicated with an external drainage ditch through a hose; the anti-falling box (5) is fixedly connected to the middle position above the drainage lapping plate (1), and the drainage traction rope (2) is arranged in the anti-falling box (5); the drainage driving motor (6) is fixedly connected above the drainage floating plate (3); the drainage protection mechanism is arranged above the drainage lapping plate (1); the drainage auxiliary mechanism is arranged above the drainage floating plate (3).

2. The tunnel drainage apparatus of claim 1, wherein: the drainage protection mechanism comprises: a drain protection rod (101) and a drain contact plate (102); the drainage protection rods (101) are provided with a plurality of groups, and the plurality of groups of drainage protection rods (101) are respectively and rotatably connected to the periphery of the drainage lapping plate (1); the drainage contact plates (102) of the arc plate structure are provided with a plurality of groups, and the drainage contact plates (102) are respectively and fixedly connected to the inner sides of the drainage protection rods (101).

3. The tunnel drainage apparatus of claim 2, wherein: the drainage protection mechanism further comprises: the protection drive gear (103), the protection limiting plate (104), the protection drive rack (105) and the protection reset spring (106); the protection driving gears (103) are provided with a plurality of groups, the plurality of groups of protection driving gears (103) are respectively and rotatably connected to the periphery of the drainage lapping plate (1), and the plurality of groups of protection driving gears (103) are coaxially and fixedly connected with the drainage protection rod (101); the protective limiting plates (104) are provided with a plurality of groups, and the protective limiting plates (104) are respectively and fixedly connected to the periphery above the drainage lapping plate (1); the protection driving racks (105) are provided with a plurality of groups, the plurality of groups of protection driving racks (105) are respectively connected below the protection limiting plates (104) in a sliding way, and the plurality of groups of protection driving racks (105) are meshed with the protection driving gears (103); the protection reset springs (106) are provided with a plurality of groups, the plurality of groups of protection reset springs (106) are respectively and fixedly connected to the upper ends of the protection driving racks (105), and the upper ends of the plurality of groups of protection reset springs (106) are fixedly connected with the protection limiting plates (104).

4. A tunnel drainage apparatus as claimed in claim 3 wherein: the drainage protection mechanism further comprises: a fall-preventing friction wheel (107); the anti-falling friction wheel (107) is rotationally connected to the inside of the anti-falling box (5), an anti-slip pattern structure is arranged on the periphery of the anti-falling friction wheel (107), and the anti-falling friction wheel (107) is in friction contact with the drainage traction rope (2).

5. The tunnel drainage apparatus of claim 4 wherein: the drainage protection mechanism further comprises: the anti-falling device comprises an anti-falling fixing piece (108), an anti-falling connecting piece (109), an anti-falling bolt (110) and an anti-falling connecting spring (111); the anti-falling fixing piece (108) is fixedly connected to the inside of the anti-falling box (5), and a plurality of groups of slot structures are formed in the anti-falling fixing piece (108); the anti-falling connecting piece (109) is coaxially and fixedly connected to the front of the anti-falling friction wheel (107); the anti-falling bolt (110) is connected above the inner part of the anti-falling connecting piece (109) in a sliding way; the anti-falling connecting spring (111) is fixedly connected inside the anti-falling connecting piece (109), and the upper end of the anti-falling connecting spring (111) is fixedly connected with the anti-falling bolt (110).

6. The tunnel drainage apparatus of claim 1, wherein: the drainage auxiliary mechanism comprises: a drain protection groove (301); the drainage protection groove (301) is arranged at the rear of the drainage floating plate (3).

7. The tunnel drainage apparatus of claim 6 wherein: the drainage auxiliary mechanism further comprises: a drainage limit wheel (302); the drainage limiting wheels (302) are provided with a plurality of groups, and the drainage limiting wheels (302) are respectively connected to the periphery of the drainage floating plate (3) in a rotating mode.

8. The tunnel drainage apparatus of claim 7 wherein: the drainage auxiliary mechanism further comprises: a drainage driving wheel (303) and a blow-drying fan (304); two groups of drainage driving wheels (303) are arranged in total, the two groups of drainage driving wheels (303) are coaxially and fixedly connected, the two groups of drainage driving wheels (303) are composed of two groups of belt wheels which are in transmission connection through a synchronous belt, and the two groups of drainage driving wheels (303) are coaxially and fixedly connected with a rotating shaft of a drainage driving motor (6); the blowing fan (304) is fixedly connected to the rear of the discharge floating plate (3), the blowing fan (304) is arranged at the front end of the drainage protection groove (301), and the fan blade rotating shaft of the blowing fan (304) is coaxially and fixedly connected with a group of drainage driving wheels (303) at the rear.

9. The tunnel drainage apparatus of claim 8 wherein: the drainage auxiliary mechanism further comprises: a drain anti-blocking cage (305); the drain anti-blocking cage (305) is connected below the water inlet pipe of the drain pump (4) through a flange.

10. The tunnel drainage apparatus of claim 9 wherein: the drainage auxiliary mechanism further comprises: an anti-blocking driving disc (306), an anti-blocking driving piece (307), an anti-blocking transmission piece (308), an anti-blocking guide rod (309) and an anti-blocking cleaning piece (310); the anti-blocking driving disc (306) is coaxially and fixedly connected to the front ends of a group of front drainage driving wheels (303); the anti-blocking driving piece (307) is fixedly connected to the front centrifugal position of the anti-blocking driving disc (306); the anti-blocking transmission member (308) is provided with a rectangular groove structure, and the anti-blocking driving member (307) is arranged in the rectangular groove of the anti-blocking transmission member (308); the anti-blocking guide rod (309) is slidably connected to the front end of the discharge floating plate (3), and the upper end of the anti-blocking guide rod (309) is fixedly connected with the anti-blocking transmission part (308); the anti-blocking cleaning piece (310) is of a rectangular frame-shaped structure, the anti-blocking cleaning piece (310) is connected to the periphery of the drainage anti-blocking cage (305) in a sliding mode, and the anti-blocking cleaning piece (310) is fixedly connected to the lower end of the anti-blocking guide rod (309).