Closed concrete subway segment maintenance device

By designing a closed-loop concrete subway segment curing device, which combines a support net and a spray pipe with a guide fan, the problems of inconvenient operation and unsatisfactory sealing effect of existing devices are solved. This achieves uniform spraying and moisturizing of subway segments and improves the quality of curing.

CN224158598UActive Publication Date: 2026-04-24NINGBO TIANHE YONGDA MTR SEGMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO TIANHE YONGDA MTR SEGMENT CO LTD
Filing Date
2025-04-11
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing subway tunnel segment maintenance devices use membrane sealing, which is inconvenient to operate, has unsatisfactory sealing effect, is costly, and makes it difficult to maintain uniform humidity in the sealed space.

Method used

A closed-loop concrete subway segment curing device was designed. The subway segments are supported by a support net, and the spray pipe and the guide fan work together to achieve spraying and moisturizing and air circulation, so as to maintain uniform humidity inside the curing box.

Benefits of technology

This method achieves uniform spraying and moisturizing of subway tunnel segments, improving the maintenance effect and quality while reducing operational complexity and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of subway segment maintenance, and discloses a closed concrete subway segment maintenance device which comprises a maintenance box and a box door hinged to the front end, a water pump is fixed to the right side of the maintenance box, a liquid storage box is connected to the rear side of the water pump, and a supporting net is arranged in the maintenance box. The inner wall of the upper end of the curing box is connected with a movable plate, the lower ends of the two sides of the movable plate are connected with flow guide square pipes, the middles of the flow guide square pipes are connected with first liquid spraying pipes, the flow guide square pipes are connected with second liquid spraying pipes, and an air guide pipe is arranged on the rear side of the curing box. According to the closed concrete subway segment maintenance device, through the arrangement of the horizontal spraying structure, spraying and moisturizing can be evenly conducted on a subway segment placed above the supporting net, simultaneous spraying of the upper side and the lower side of the subway segment can be achieved, the spraying coverage rate is increased, the humidity in the maintenance box can be kept uniform in cooperation with an air circulation structure, and the maintenance efficiency is improved. Therefore, the maintenance effect of the subway segment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of subway tunnel segment maintenance technology, specifically a closed-type concrete subway tunnel segment maintenance device. Background Technology

[0002] Subway tunnel segments are manufactured using a process that involves individual molds, individual material placement, and individual or batch-based overall curing. The number of molds is large, and the space occupied is significant. Construction and curing have their own unique characteristics. Subway tunnel segments are generally made of concrete, and water curing is required to prevent cracking. This necessitates the use of subway tunnel segment curing devices.

[0003] An existing concrete segment curing and storage device, such as Chinese patent application number CN202321339305.6, relates to the field of concrete segment curing technology. It includes: a fixed base; a mounting frame centrally connected to the top surface of the fixed base; two support frames symmetrically bolted to the top surface of the mounting frame; a first pad fixedly connected to the top surface of each of the two support frames; and a set of support swing rods symmetrically hinged to the outer sides of each of the two support frames. However, existing segment curing devices rely on membrane sealing during use, which is inconvenient to operate, has an unsatisfactory sealing effect, increases usage costs, and makes it difficult to maintain uniform humidity in the sealed space.

[0004] Therefore, we propose a closed-loop concrete subway segment curing device to address the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a closed-type concrete subway segment curing device to solve the problems mentioned in the background art, such as inconvenient operation, unsatisfactory sealing effect, and high cost when using a membrane for sealing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a closed-type concrete subway segment curing device, comprising a curing box and a door hinged at the front end, a water pump fixed on the right side of the curing box, and a liquid storage tank connected to the rear side of the water pump.

[0007] The curing box is equipped with a support net inside. A movable plate is connected to the upper inner wall of the curing box, and a guide square tube is connected to the lower ends of both sides of the movable plate. A first spray pipe is connected to the middle of the guide square tube, and a second spray pipe is connected to the guide square tube.

[0008] An air duct is provided at the rear of the curing box, and positioning pipes are connected to both sides of the curing box, with a guide fan installed inside the positioning pipe.

[0009] Preferably, the support net is distributed in an equidistant array, and the support net is fixedly connected to the inner wall of the curing box.

[0010] Using the above technical solution, the support net can be used to support and place subway tunnel segments, and the hollow design of the support net facilitates the spraying of the tunnel segments.

[0011] Preferably, the flow guide tubes are symmetrically distributed on the front and rear sides of the support net, the second spray tubes are symmetrically distributed on both sides of the flow guide tubes, and the first spray tubes are equidistantly arrayed in the middle of the two sets of flow guide tubes.

[0012] By adopting the above technical solution, the first spray pipe and the second spray pipe can be used to spray and moisturize the subway tunnel segments.

[0013] Preferably, the movable plate is slidably connected to the upper inner wall of the curing box, and a threaded rod passes through the middle of the movable plate. The threaded rod is threadedly connected to the movable plate, and the right side of the threaded rod extends to the outside of the curing box. A power motor is fixed on the right side of the curing box, and the power motor is fixedly connected to the threaded rod.

[0014] Using the above technical solution, a power motor can drive the threaded screw to rotate, and when the threaded screw rotates, it can drive the movable plate, the guide square tube, the first spray pipe and the second spray pipe to move horizontally, thereby achieving uniform spraying of subway tunnel segments.

[0015] Preferably, the lower end of the maintenance box is provided with a corrugated hose, and the left side of the corrugated hose is connected to the lower second spray pipe, and the right end of the corrugated hose is connected to the water pump.

[0016] Using the above technical solution, the water pump and the spray structure can be connected by a corrugated hose, and the corrugated hose can extend and bend, making it easy to influence the movement of the spray structure.

[0017] Preferably, the air guide tube is U-shaped and is distributed in an equidistant array. Both ends of the air guide tube are fixed to the positioning tube. The positioning tube has a mounting bracket fixed inside and the mounting bracket is connected to the air guide fan.

[0018] By employing the above technical solution, the combination of air duct, positioning tube and airflow fan can drive the air circulation inside the curing box, thereby maintaining uniform humidity inside the curing box and improving the curing effect.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the closed-type concrete subway segment curing device;

[0020] 1. With the horizontal spray structure, the subway tunnel segments placed above the support net can be sprayed and moisturized evenly, and the upper and lower sides of the subway tunnel segments can be sprayed simultaneously to improve the spray coverage. In addition, with the air circulation structure, the humidity inside the curing box can be kept uniform, thereby improving the curing effect of the subway tunnel segments.

[0021] 2. Through the air circulation structure design, the air inside the curing box can be circulated. The internal water and air flow can maintain uniform internal humidity, and the water and air flow can maintain uniform humidity of the subway tunnel segments, thus improving the curing effect and quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the door opening structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the movable plate and the flow guide square tube structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the movable plate and threaded screw structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the positioning tube and the flow guide fan structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the curing box and positioning tube structure of this utility model.

[0028] In the diagram: 1. Curing box; 2. Box door; 3. Support net; 4. Movable plate; 5. Guide tube; 6. First spray pipe; 7. Second spray pipe; 8. Water pump; 9. Storage tank; 10. Corrugated hose; 11. Threaded screw; 12. Power motor; 13. Air guide pipe; 14. Positioning pipe; 15. Guide fan. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a closed concrete subway segment curing device, including a curing box 1 and a door 2 connected by a front hinge. The curing box 1 is provided with a support net 3 inside. The support net 3 is distributed in an equidistant array and is fixedly connected to the inner wall of the curing box 1. The subway segment can be placed and supported by multiple sets of support nets 3. The hollow design of the support net 3 facilitates the spraying and moisturizing of the upper and lower sides of the subway segment. At the same time, the curing box 1 and the door 2 can be sealed together to maintain the humidity inside the curing box 1 and reduce the rate of water evaporation.

[0031] A water pump 8 is fixed to the right side of the curing box 1, and a liquid storage tank 9 is connected to the rear side of the water pump 8. A movable plate 4 is connected to the upper inner wall of the curing box 1, and guide tubes 5 are connected to the lower ends of both sides of the movable plate 4. A first spray pipe 6 is connected to the middle of the guide tube 5, and a second spray pipe 7 is connected to the guide tube 5. The guide tubes 5 are symmetrically distributed on the front and rear sides of the support net 3, and the second spray pipes 7 are symmetrically distributed on both sides of the guide tubes 5. The first spray pipes 6 are equidistantly arrayed in the middle of the two sets of guide tubes 5. The movable plate 4 is slidably connected to the upper inner wall of the curing box 1, and a threaded screw 11 passes through the middle of the movable plate 4. The threaded screw 11 is threadedly connected to the movable plate 4, and the right side of the threaded screw 11 extends to the outside of the curing box 1. A power motor 12 is fixed to the right side of the curing box 1, and the power motor 12 is connected to the threaded screw 11. The threaded rod 11 is fixedly connected; a corrugated hose 10 is provided at the lower end of the maintenance box 1, and the left side of the corrugated hose 10 is connected to the lower second spray pipe 7, and the right end of the corrugated hose 10 is connected to the water pump 8; the water pump 8 can draw the liquid inside the storage tank 9, and the water pump 8 can transport the liquid through the corrugated hose 10 to the lower second spray pipe 7. The liquid is transported to other first spray pipes 6 through the lower second spray pipe 7 and the guide square pipe 5. Multiple sets of first spray pipes 6 and second spray pipes 7 can spray liquid at the same time, and spray the upper and lower ends of the subway tunnel segments placed on the upper end of the support net 3 to keep the subway tunnel segments moist. The threaded rod 11 can be driven to rotate by the power motor 12, and the threaded rod 11 can drive the movable plate 4 and the spraying structure to move horizontally for spraying.

[0032] An air duct 13 is provided on the rear side of the curing box 1, and positioning pipes 14 are connected to both sides of the curing box 1. A guide fan 15 is installed inside the positioning pipe 14. The air duct 13 has a "U" shape design and is distributed in an equidistant array. Both ends of the air duct 13 are fixed to the positioning pipes 14. A mounting bracket is fixed inside the positioning pipe 14 and is connected to the guide fan 15. Through the cooperation of the air duct 13, positioning pipes 14 and guide fan 15, the air circulation inside the curing box 1 is realized. When the guide fan 15 rotates, it can drive the air and water vapor inside the curing box 1 to flow into the air duct 13 and return to the curing box 1 at the other end of the air duct 13, thereby realizing continuous circulation, maintaining uniform humidity inside the curing box 1, and allowing water vapor to adhere evenly to the outside of the subway tunnel segments, improving the curing effect and quality.

[0033] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A closed-type concrete subway segment curing device, comprising a curing box (1) and a box door (2) hinged at the front end, wherein a water pump (8) is fixed on the right side of the curing box (1), and a liquid storage tank (9) is connected to the rear side of the water pump (8), characterized in that: The maintenance box (1) is equipped with a support net (3), the upper inner wall of the maintenance box (1) is connected to a movable plate (4), and the lower ends of both sides of the movable plate (4) are connected to a flow guide square tube (5). The middle part of the flow guide square tube (5) is connected to a first spray pipe (6), and the flow guide square tube (5) is connected to a second spray pipe (7). The curing box (1) is provided with an air duct (13) at the rear, and the curing box (1) is connected to positioning tubes (14) on both sides, and a guide fan (15) is provided inside the positioning tube (14).

2. The closed-type concrete subway segment curing device according to claim 1, characterized in that: The support net (3) is distributed in an equidistant array, and the support net (3) is fixedly connected to the inner wall of the curing box (1).

3. The closed-type concrete subway segment curing device according to claim 2, characterized in that: The flow guide tubes (5) are symmetrically distributed on the front and rear sides of the support net (3), the second spray tubes (7) are symmetrically distributed on both sides of the flow guide tubes (5), and the first spray tubes (6) are equidistantly arrayed in the middle of the two sets of flow guide tubes (5).

4. The closed-type concrete subway segment curing device according to claim 3, characterized in that: The movable plate (4) is slidably connected to the upper inner wall of the curing box (1), and a threaded screw (11) passes through the middle of the movable plate (4). The threaded screw (11) is threadedly connected to the movable plate (4), and the right side of the threaded screw (11) extends to the outside of the curing box (1). A power motor (12) is fixed on the right side of the curing box (1), and the power motor (12) is fixedly connected to the threaded screw (11).

5. A closed-type concrete subway segment curing device according to claim 1, characterized in that: The lower end of the maintenance box (1) is provided with a corrugated hose (10), and the left side of the corrugated hose (10) is connected to the lower second spray pipe (7), and the right end of the corrugated hose (10) is connected to the water pump (8).

6. The closed-type concrete subway segment curing device according to claim 1, characterized in that: The air guide tube (13) is U-shaped and is distributed in an equidistant array. Both ends of the air guide tube (13) are fixed to the positioning tube (14). The positioning tube (14) has a mounting bracket inside and is connected to the air guide fan (15).

Citation Information

Patent Citations

  • Concrete segment maintenance and storage device

    CN220030633U