CN219910784U - Two lining maintenance rack for tunnel - Google Patents

Abstract

The utility model discloses a secondary lining maintenance bench for a tunnel, which relates to the technical field of tunnel construction and comprises a trolley portal, a traveling assembly, a spraying assembly and a recycling assembly; the traveling assembly is arranged at the bottom of the trolley portal and used for driving the trolley portal to move; the spray assembly comprises spray pipes and spray heads, wherein the spray pipes are arc-shaped and fixed on the outer side of the trolley door frame, and the spray heads are arranged on the outer side of the spray pipes at equal intervals; the recovery assembly comprises an upper water collecting tank, a lower water collecting tank and a guide plate, wherein the upper water collecting tank is arranged at the top of the trolley portal, the lower water collecting tank is symmetrically arranged at two sides of the bottom of the trolley portal, the top of the guide plate extends to the upper water collecting tank, and the bottom of the guide plate extends to the position right above the lower water collecting tank; the upper water collecting tank can recover the spray water which drops and splashes from the top of the tunnel, and the guide plate and the lower water collecting tank can recover the redundant spray water and splashes from the inner walls of the two sides of the tunnel, so that the water accumulation in a curing area caused by splash is prevented, and the quality of curing is ensured while water resources are effectively saved.

Description

Two lining maintenance rack for tunnel

Technical Field

The utility model relates to the technical field of tunnel construction, in particular to a two-lining maintenance rack for a tunnel.

Background

In the construction process of the tunnel, secondary lining is required to be applied after the primary support is completed. The secondary lining and the primary support are relatively speaking, namely the inner lining built by materials such as concrete under the condition that the tunnel is subjected to primary support, so as to achieve the functions of reinforcing the support, optimizing a route water-proof and drainage system, beautifying the appearance, conveniently setting facilities such as communication, illumination and monitoring, and the like, and meet the requirements of modern expressway tunnel construction. The secondary lining structure is used as a structural measure of safety reserve, so that the strength and the rigidity of the secondary lining structure are ensured, and the durability of the secondary lining structure is ensured. Tunnel engineering is a typical mass concrete engineering, and mass concrete pouring and curing engineering are often key links in tunnel construction. After the concrete pouring is completed, the concrete can be effectively prevented from cracking due to solidification shrinkage stress only by timely maintenance, so that the requirements on the strength and the durability of the concrete are met.

In the prior art, a sprinkler is generally adopted to directly spray a secondary lining of a tunnel, or a high-pressure water gun is adopted to manually spray, so that the conditions of uneven spraying, discontinuity, more labor consumption, low efficiency and the like exist, the high-pressure water gun has large impact damage to the concrete just demoulded, water spray splashing causes more water accumulation in a curing area, the secondary lining concrete structure is easy to crack, water resources are wasted, and an ideal curing effect is often not achieved.

Disclosure of Invention

In view of the above, the utility model aims to provide a two-lining maintenance rack for tunnels, which can effectively save water resources and ensure maintenance quality.

The two-lining maintenance rack for the tunnel provided by the utility model adopts the following technical scheme:

a two-lining maintenance rack for a tunnel comprises a trolley door frame, a traveling assembly, a spraying assembly and a recycling assembly;

the walking assembly is arranged at the bottom of the trolley portal and used for driving the trolley portal to move;

the spraying assembly comprises a spraying pipe and a plurality of spraying heads, wherein the spraying pipe is arc-shaped and is fixed on the outer side of the trolley portal, and the spraying heads are arranged on the outer side of the spraying pipe at equal intervals;

the recovery assembly comprises an upper water collecting tank for recovering spray water dropped from the top of the tunnel, a lower water collecting tank for recovering redundant spray water from the two sides of the tunnel and guide plates arranged on the two sides of the upper water collecting tank, wherein the upper water collecting tank is arranged at the top of the trolley portal, the lower water collecting tank is symmetrically arranged on the two sides of the bottom of the trolley portal, the top of the guide plates extends to the upper water collecting tank, and the bottom of the guide plates extends to the position right above the lower water collecting tank.

Further, the spray assembly further comprises a water tank, a spray pump and a water outlet pipe, wherein the water outlet pipe is communicated with the water tank and the spray pipe, and the spray pump is arranged on the water outlet pipe.

Further, the water tank set up in go up the water catch bowl with between the platform truck portal, go up the water catch bowl bottom be provided with the first wet return of water tank intercommunication, first wet return top is provided with first filter screen.

Further, retrieve the subassembly still include return water pump and second return water pipe, the one end of second return water pipe is inserted lower water catch bowl bottom, the other end upwards extend with the water tank intercommunication, the return water pump set up in on the second return water pipe, second return water pipe bottom is provided with the second filter screen.

Further, the both sides of platform truck portal bottom are provided with and are used for supporting the backup pad of water catch bowl down, water catch bowl down slide set up in the backup pad, the backup pad top is provided with the extensible member, the one end and the platform truck portal fixed connection of extensible member, the other end and water catch bowl fixed connection down.

Further, the trolley portal comprises two portal frames arranged side by side and a connecting cross rod arranged between the two portal frames, wherein the top of each portal frame is provided with an L-shaped frame connected with the upper part of the spraying pipe, and two sides of each portal frame are provided with V-shaped frames connected with the lower part of the spraying pipe.

Further, a plurality of connecting cross bars are respectively arranged at the top and two sides of the door-shaped frame, and the connecting cross bars at the top of the door-shaped frame are fixedly connected with supporting vertical bars for supporting the guide plates.

Further, the cross sections of the upper water collecting tank, the lower water collecting tank and the guide plate are arc-shaped structures.

Further, the walking assembly comprises walking wheels and a driving mechanism for driving the walking wheels to rotate, and the walking wheels are rotatably arranged at the bottom of the portal frame through wheel shafts.

Further, the driving mechanism comprises a motor, a driving wheel, a driven wheel and a belt, wherein the motor is fixed at the bottom of the door-shaped frame, the driving wheel is fixedly connected with the output end of the motor, the driven wheel is fixedly connected with the wheel shaft, and the belt is sleeved on the outer sides of the driving wheel and the driven wheel.

In summary, the present utility model comprises at least one of the following beneficial effects:

1. according to the secondary lining maintenance rack for the tunnel, the arc-shaped spray pipes and the spray heads are arranged, the spray heads spray water and act on the concrete surface of the inner wall of the tunnel so as to ensure that the concrete surface is kept moist, in addition, the upper water collecting tank, the lower water collecting tank and the guide plate are arranged, the upper water collecting tank can recover spray water which drops and splashes at the top of the tunnel, and the guide plate and the lower water collecting tank can recover redundant and splashed spray water on the inner wall of the two sides of the tunnel, so that water accumulation in a maintenance area caused by splash of water is prevented, water resources are effectively saved, and meanwhile, the maintenance quality is ensured;

2. through the arrangement of the first water return pipe, the second water return pipe and the water return pump, the spray water recovered in the upper water collecting tank can be converged into the water tank through the first water return pipe, the spray water recovered in the lower water collecting pipe is returned into the water tank through the second water return pipe and the water return pump, the spray water is pumped into the spray pipe through the spray pump, and is sprayed onto the inner wall of the second lining of the tunnel through the spray header for maintenance, so that the good circulation is realized, and the recovered spray water is fully utilized;

3. through setting up backup pad and extensible member, drive down the water catch bowl through the extensible member and follow backup pad lateral sliding to can adjust according to the width of tunnel, make one side and the tunnel inner wall butt of keeping away from the platform truck portal of water catch bowl down, be convenient for collect the shower water of tunnel inside wall downflow.

Drawings

FIG. 1 is a schematic view of the overall structure of a two-lining maintenance rack for tunnels in an embodiment of the present utility model;

FIG. 2 is a front view of a two-liner maintenance gantry for tunnels in an embodiment of the present utility model;

fig. 3 is an enlarged view at a in fig. 1.

Reference numerals illustrate:

1. a shower pipe; 2. a spray header; 3. a water collecting tank is arranged; 4. a lower water collecting tank; 5. a deflector; 6. a water tank; 7. a spray pump; 8. a water outlet pipe; 9. a first return pipe; 10. a first filter screen; 11. a water return pump; 12. a second return pipe; 13. a second filter screen; 14. a support plate; 15. a telescoping member; 16. a door-shaped frame; 17. connecting the cross bars; 18. an L-shaped frame; 19. a V-shaped frame; 20. a supporting vertical rod; 21. a walking wheel; 22. a wheel axle; 23. a motor; 24. a driving wheel; 25. driven wheel; 26. a belt.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a two-lining maintenance rack for a tunnel. Referring to fig. 1-3, the two-lining maintenance rack for the tunnel comprises a trolley portal frame, a walking assembly, a spraying assembly and a recycling assembly, wherein the trolley portal frame comprises door-shaped frames 16 and connecting cross bars 17, the two door-shaped frames 16 are arranged side by side in front of and behind, and a plurality of connecting cross bars 17 are arranged between the two door-shaped frames 16. And both ends are fixedly connected with two door-shaped frames 16, respectively. A plurality of connecting crossbars 17 are respectively arranged at the top and at both sides of the door-shaped frame 16. The walking assembly is arranged at the bottom of the door-shaped frame 16 and is used for driving the trolley door frame to move.

The walking assembly comprises a walking wheel 21, a wheel shaft 22 and a driving mechanism for driving the walking wheel 21 to rotate. The wheel axle 22 is rotatably arranged at the bottom of the portal frame 16, and the two travelling wheels 21 are sleeved on the wheel axle 22 and positioned at two sides of the bottom of the portal frame 16. The driving mechanism is arranged at the bottom of the front door-shaped frame 16 and is used for driving the travelling wheels 21 at the front side of the door-shaped frame 16 to rotate. Specifically, the driving mechanism comprises a motor 23, a driving wheel 24, a driven wheel 25 and a belt 26, wherein the motor 23 is fixedly arranged on the inner side of the bottom of the door-shaped frame 16 and is positioned above the travelling wheel 21, and the driving wheel 24 is fixedly connected with an output shaft of the motor 23. One end of the wheel shaft 22, which is positioned at the inner side of the portal frame 16, extends to the outer side of the travelling wheel 21, the driven wheel 25 is fixedly connected with the end of the wheel shaft 22, which extends to the outer side of the travelling wheel 21, and the belt 26 is sleeved at the outer sides of the driving wheel 24 and the driven wheel 25. And the motor 23 is started, the driving wheel 24 rotates to drive the belt 26 to rotate, and the belt 26 drives the driven wheel 25 to rotate so as to drive the wheel shaft 22 and the travelling wheel 21 to rotate, so that the trolley portal frame moves along the length direction of the tunnel.

In this embodiment, spray assembly includes shower 1, shower head 2, water tank 6, spray pump 7 and outlet pipe 8, and shower 1 is the arc and is fixed in the platform truck portal outside, and a plurality of shower heads 2 equidistant setting are in the shower 1 outside. Specifically, the shower pipe 1 is located at the outer side of the middle part of the connecting cross bar 17 connecting the front and rear door-shaped frames 16, so that the front and rear door-shaped frames 16 are symmetrical to the front and rear sides of the shower pipe 1, and the shower head 2 is preferably an atomization shower head. The water tank 6 is fixed on the top of the trolley portal, specifically, the water tank 6 is fixedly connected with the top of the portal frame 16 and the connecting cross bar 17 positioned on the top of the portal frame 16, so that the water tank 6 is supported on the top of the trolley portal. One end of the water outlet pipe 8 is communicated with the water tank 6, the other end is communicated with the spray pipe 1, the spray pump 7 is arranged on the water outlet pipe 8, and specifically, the spray pump 7 is also fixed on the top of the trolley portal and is positioned on one side of the water tank 6.

Through setting up spray assembly, shower 1, shower head 2, water tank 6, spray pump 7 and outlet pipe 8 cooperation setting, shower water in the water tank 6 pumps into shower 1 through shower pump 7, spouts through shower head 2, acts on the concrete surface of tunnel inner wall to guarantee that the concrete surface keeps moist, effectively save the manual work. The spray header 2 adopts an atomization spray head, solves the problem that the impact force of the traditional high-pressure water gun on concrete is large, and ensures the maintenance quality.

In this embodiment, the recovery assembly comprises an upper sump 3, a lower sump 4 and a deflector 5. Go up water catch bowl 3 setting in the platform truck portal top and be located between water tank 6 and shower 1, go up the cross-section of water catch bowl 3 and be arc structure and the bottom is provided with first wet return 9, and go up water catch bowl 3 through first wet return 9 and water tank 6 fixed connection, the upper and lower both ends of first wet return 9 communicate with last water catch bowl 3 and water tank 6 respectively, thereby make the shower water that drops and splashes at the tunnel top that goes up water catch bowl 3 recovery back flow back to in the water tank 6 through first wet return 9, carry out recycle, effectively water economy resource. The top of the first water return pipe 9 is positioned at the bottom of the inner side of the upper water collecting tank 3, and the top of the first water return pipe 9 is provided with a first filter screen 10. Preferably, the first filter screen 10 is detachably connected with the first water return pipe 9, and specifically can be in a detachable form such as clamping, binding and the like. By arranging the first filter screen 10, spray water recovered by the upper water collecting tank 3 is filtered conveniently, the spray header 2 is prevented from being blocked, and the maintenance quality is ensured. The first filter screen 10 is detachably connected with the first water return pipe 9, so that the first filter screen 10 is convenient to replace and clean.

The two sides of the bottom of the trolley portal are provided with lower water collecting grooves 4, the two lower water collecting grooves 4 are symmetrically arranged, the cross section of the lower water collecting groove 4 is of an arc-shaped structure, and the width of the lower water collecting groove is larger than the distance between the front door-shaped frame 16 and the rear door-shaped frame 16. The outside of the bottom of the door-shaped frame 16 is fixed and horizontally provided with a support plate 14 for supporting the lower water collecting tank 4, and the lower water collecting tank 4 is slidably provided on the support plate 14. The outside of the door-shaped frame 16 and above the supporting plate 14 are provided with telescopic pieces 15, one end of each telescopic piece 15 is fixedly connected with the door-shaped frame 16, the other end of each telescopic piece 15 is fixedly connected with one side of the lower water collecting tank 4, which is close to the door-shaped frame 16, and the lower water collecting tank 4 is driven to transversely slide on the supporting plate 14 through the extension and shortening of the telescopic pieces 15, so that one side top of the lower water collecting tank 4, which is far away from the door-shaped frame 16, is abutted against the inner wall of a tunnel, and spray water flowing downwards from the inner wall of the tunnel flows into the lower water collecting tank 4 along the inner wall of the lower water collecting tank 4. Specifically, the telescopic member 15 may be a telescopic rod, a hydraulic cylinder, an electric push rod, or the like. Preferably, the lower water collecting tank 4 is provided with the rubber strip near one side top of tunnel inner wall, can make lower water collecting tank 4 top through rubber strip and tunnel inner wall zonulae occludens on the one hand through setting up the rubber strip, is convenient for retrieve the shower water, and on the other hand the rubber strip has fine antifriction effect, long service life.

The upper side of the lower water collecting tank 4 is obliquely provided with a guide plate 5, the upper end of the guide plate 5 extends upwards to two sides of the upper water collecting tank 3 and is connected with the upper water collecting tank 3, and the lower end of the guide plate 5 extends downwards to the position right above the lower water collecting tank 4. Specifically, the guide plate 5 is in an arc structure, and a support vertical rod 20 for supporting the guide plate 5 is fixedly connected to a connecting cross rod 17 at the top of the door-shaped frame 16. By arranging the guide plate 5, the spray water splashed by the spray heads 2 on the two sides of the top of the spray pipe 1 drops onto the guide plate 5 and then flows into the lower water collecting tank 4 along the guide plate 5.

In this embodiment, the recovery assembly further includes a water return pump 11 and a second water return pipe 12, one end of the second water return pipe 12 is inserted into the bottom of the lower water collecting tank 4, the other end extends upwards to be communicated with the water tank 6, the water return pump 11 is arranged on the second water return pipe 12, preferably, the second water return pipe 12 is a hose, a mounting plate is fixed on the outer side of a connecting cross rod 17 on the side of the two portal frames 16, and the water return pump 11 is mounted on the mounting plate. The bottom end of the second water return pipe 12 is provided with a second filter screen 13, and preferably, the first filter screen 10 is detachably connected with the first water return pipe 9, and specifically can be in a detachable form such as clamping, binding and the like. By arranging the second filter screen 13, the spray water recovered by the lower water collecting tank 4 is convenient to filter, the spray header 2 is prevented from being blocked, and the maintenance quality is ensured. The second filter screen 13 is detachably connected with the second water return pipe 12, so that the second filter screen 13 is convenient to replace and clean.

In this embodiment, an L-shaped frame 18 is disposed at the top of the door-shaped frame 16, two ends of the L-shaped frame 18 are fixedly connected with the door-shaped frame 16 and the shower pipe 1 respectively, V-shaped frames 19 are disposed at two sides of the door-shaped frame 16, two ends of the opening of the V-shaped frames 19 are fixedly connected with the two door-shaped frames 16 respectively, and the closed ends of the V-shaped frames 19 are fixedly connected with the shower pipe 1.

The working principle of the two-lining maintenance rack for the tunnel in the embodiment is as follows:

firstly, after the maintenance rack is moved to a tunnel mouth by a worker, water is filled into the water tank 6, the traveling assembly is started to drive the rack to move into the tunnel, after entering the tunnel, the spray pump 7 pumps out spray water into the spray pipe 3, the spray head 2 is sprayed on the surface of concrete, the surface of the concrete is in a wet state, partial water mist sprayed out of the spray head 2 above the trolley portal can be collected through the upper water collecting tank 3 arranged above the water tank 6, the collected water can be circulated into the water tank 6 through the first water return pipe 9 arranged at the bottom of the upper water collecting tank 3, the partial water mist sprayed out of the spray heads 2 at the two sides of the trolley portal and the spray water flowing down the inner wall of the tunnel can be collected through the water return pump 11 and the second water return pipe 12, the effect of saving resources is achieved, and meanwhile, the maintenance quality is guaranteed.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (10)

1. The two-lining maintenance rack for the tunnel is characterized by comprising a trolley door frame, a traveling assembly, a spraying assembly and a recycling assembly;

the walking assembly is arranged at the bottom of the trolley portal and used for driving the trolley portal to move;

the spraying assembly comprises a spraying pipe (1) and a plurality of spraying heads (2), wherein the spraying pipe (1) is arc-shaped and is fixed on the outer side of the trolley portal, and the spraying heads (2) are arranged on the outer side of the spraying pipe (1) at equal intervals;

the recovery assembly comprises an upper water collecting tank (3) for recovering spray water dropped from the top of a tunnel, a lower water collecting tank (4) for recovering redundant spray water from the two sides of the tunnel and guide plates (5) arranged on the two sides of the upper water collecting tank (3), wherein the upper water collecting tank (3) is arranged at the top of a trolley portal, the lower water collecting tank (4) is symmetrically arranged on the two sides of the bottom of the trolley portal, the top of the guide plates (5) extends to the upper water collecting tank (3), and the bottom of the guide plates extends to the position right above the lower water collecting tank (4).

2. The two-lining maintenance rack for the tunnel according to claim 1, wherein the spraying assembly further comprises a water tank (6), a spraying pump (7) and a water outlet pipe (8), the water outlet pipe (8) is communicated with the water tank (6) and the spraying pipe (1), and the spraying pump (7) is arranged on the water outlet pipe (8).

3. The two-lining maintenance rack for tunnels according to claim 2, wherein the water tank (6) is arranged between the upper water collecting tank (3) and the trolley portal, a first water return pipe (9) communicated with the water tank (6) is arranged at the bottom of the upper water collecting tank (3), and a first filter screen (10) is arranged at the top of the first water return pipe (9).

4. A tunnel secondary lining maintenance rack according to claim 3, wherein the recovery assembly further comprises a water return pump (11) and a second water return pipe (12), one end of the second water return pipe (12) is inserted into the bottom of the lower water collecting tank (4), the other end of the second water return pipe extends upwards to be communicated with the water tank (6), the water return pump (11) is arranged on the second water return pipe (12), and a second filter screen (13) is arranged at the bottom end of the second water return pipe (12).

5. The two-lining maintenance rack for tunnels according to any one of claims 1 to 4, wherein support plates (14) for supporting the lower water collecting tank (4) are arranged on two sides of the bottom of the trolley portal, the lower water collecting tank (4) is slidably arranged on the support plates (14), a telescopic piece (15) is arranged above the support plates (14), one end of the telescopic piece (15) is fixedly connected with the trolley portal, and the other end of the telescopic piece is fixedly connected with the lower water collecting tank (4).

6. The two-lining maintenance rack for tunnels according to claim 5, wherein the trolley portal comprises two portal frames (16) arranged side by side and a connecting cross bar (17) arranged between the two portal frames (16), an L-shaped rack (18) connected with the upper part of the spray pipe (1) is arranged at the top of the portal frames (16), and two sides of the portal frames (16) are arranged on V-shaped racks (19) connected with the lower part of the spray pipe (1).

7. The two-lining maintenance rack for tunnels according to claim 6, wherein a plurality of connecting cross bars (17) are respectively arranged at the top and two sides of the door-shaped frame (16), and a supporting vertical bar (20) for supporting the guide plate (5) is fixedly connected to the connecting cross bars (17) at the top of the door-shaped frame (16).

8. The two-lining maintenance rack for tunnels according to claim 1, wherein the cross sections of the upper water collecting tank (3), the lower water collecting tank (4) and the guide plate (5) are arc-shaped structures.

9. The two-lining maintenance rack for tunnels according to claim 6, wherein the traveling assembly comprises a traveling wheel (21) and a driving mechanism for driving the traveling wheel (21) to rotate, and the traveling wheel (21) is rotatably arranged at the bottom of the portal frame (16) through a wheel shaft (22).

10. The two-lining maintenance rack for tunnels according to claim 9, wherein the driving mechanism comprises a motor (23), a driving wheel (24), a driven wheel (25) and a belt (26), the motor (23) is fixed at the bottom of the door-shaped frame (16), the driving wheel (24) is fixedly connected with the output end of the motor (23), the driven wheel (25) is fixedly connected with the wheel shaft (22), and the belt (26) is sleeved outside the driving wheel (24) and the driven wheel (25).