Biodegradable toilet for tunnel construction
By designing biodegradable toilets for tunnel construction, the inconvenience of toilet use for construction workers and the problem of excrement disposal were solved, achieving harmless treatment of feces and urine and improving the sanitary conditions of the construction environment.
Patent Information
- Application Number
- CN202422449791.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-11
AI Technical Summary
During tunnel boring machine (TBM) construction, workers face difficulties in accessing toilets, and the transportation of excrement and the handling of odors are challenging, impacting the construction environment.
A biodegradable toilet for tunnel construction was designed, comprising a box, a lifting and transfer component, a sewage treatment mechanism, and an odor purification component. It utilizes a vacuum pump, an aeration tank, a sedimentation tank, a filtration mechanism, and an odor purification component to treat feces and urine, achieving harmless treatment.
This method achieves harmless treatment of excrement and urine, reduces the impact on the construction environment, and improves the convenience and hygiene conditions for construction workers.
Smart Images

Figure CN223510671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shield tunneling technology, and in particular to a biodegradable toilet for tunnel construction. Background Technology
[0002] Tunnel boring machine (TBM) construction involves advancing a tunnel boring machine (TBM) underground, using the shield shell and tunnel segments to support the surrounding rock and prevent collapse into the tunnel. Simultaneously, cutting devices excavate the soil in front of the excavation head, transporting the excavated material out of the tunnel using excavation machinery. Jacks then apply pressure from the rear to propel the TBM forward, and precast concrete tunnel segments are assembled to form the tunnel structure. This mechanized construction method suffers from significant drawbacks due to the long distances involved in TBM tunneling. This makes it extremely inconvenient for construction workers to use the restroom, requiring the transportation of waste and causing persistent odors, which negatively impacts the construction environment. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a biodegradable toilet for tunnel construction.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A biodegradable toilet for tunnel construction includes a box body, the interior of which is divided into an integrated room and several toilets. Each toilet is equipped with a door and a latrine. A lifting and transferring assembly is installed at the bottom of the box body. The integrated room is equipped with a sewage treatment mechanism and an odor purification assembly. The sewage treatment mechanism is connected to the latrine via a vacuum pump.
[0006] Preferably, the lifting and transferring assembly includes jacks b installed at the four corners of the box, rectangular casters are provided at the bottom of the box, a transfer track is provided below the casters, and jacks a are provided at the lower end of the transfer track.
[0007] Preferably, a rotation angle locking mechanism is provided between the caster wheels and the housing.
[0008] Preferably, the sewage treatment mechanism includes a transfer tank connected to a vacuum pump, a stirring device installed on the transfer tank, an aeration tank connected to an aeration tank via a pump body one, a sedimentation tank connected to the aeration tank, a filtration mechanism connected to the sedimentation tank via a pump body two, a water storage tank connected to the output end of the filtration mechanism, and a return water from the water storage tank to the latrine via a pump body three.
[0009] Preferably, the filtration mechanism includes a membrane filtration module, an adsorption module, and an oxidant module, which are arranged sequentially according to the water flow direction.
[0010] Preferably, the odor purification component includes a centrifugal fan located in the integrated room, with a biological filter at the input end of the centrifugal fan and an exhaust pipe at the output end of the centrifugal fan.
[0011] Preferably, a UV processor is provided at the end of the exhaust pipe.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, jack b supports the box and places the transfer track under the universal wheel. Then, jack a is supported, jack b is folded, and the box is moved along the transfer track to the top of the tunnel track. Then, jack b is supported again, jack a is folded, and the transfer track is removed. The universal wheel is turned and placed on the tunnel track, and the box is moved along it. In the biodegradation zone, the collected feces and urine are first subjected to sedimentation. During the sedimentation and storage process, the feces dissolve and hydrolyze. Then, it enters the aeration stage. Aerobic microorganisms in the aeration tank convert most of the organic matter in the feces and urine into CO2 and H2O. Then, through sedimentation filtration and other supplementary treatments, effluent with very low suspended solids content is obtained. Then, membrane filtration, adsorbents, oxidants and other means are used to decolorize and sterilize the effluent, and finally clean water is obtained. It can be directly discharged in compliance with standards or reused for flushing toilets or greening. Attached Figure Description
[0013] To illustrate the technical solutions in the embodiments of this utility model or the prior art more specifically and intuitively, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a schematic diagram of the structure proposed in this utility model. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the structure proposed in this utility model. Figure 2 ;
[0016] Figure 3 This is a schematic diagram of the structure proposed in this utility model. Figure 3 ;
[0017] Figure 4 for Figure 3 Schematic diagram of section AA.
[0018] In the diagram: 1. Box body; 2. Transfer track; 3. Casters; 4. Jack a; 5. Door; 6. Toilet pit; 7. Exhaust pipe; 8. UV processor; 9. Vacuum pump; 10. Transfer tank; 11. Mixing device; 12. Aeration tank; 13. Sedimentation tank; 14. Filtration mechanism; 15. Water storage tank; 16. Centrifugal fan; 17. Jack b. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figure 1-4 A biodegradable toilet for tunnel construction includes a box 1, which is divided into an integrated room and several toilets. Each toilet is equipped with a door 5 and a latrine 6. A lifting transfer component is installed at the bottom of the box 1. The integrated room is equipped with a sewage treatment mechanism and an odor purification component. The sewage treatment mechanism is connected to the latrine 6 via a vacuum pump 9.
[0021] In this embodiment, the lifting and transfer assembly includes jacks b17 installed at the four corners of the box 1, and rectangular casters 3 are provided at the bottom of the box 1. A transfer track 2 is provided below the casters 3, and a jack a4 is provided below the end of the transfer track 2.
[0022] In this embodiment, a rotation angle locking mechanism is provided between the caster wheel 3 and the housing 1.
[0023] In this embodiment, the sewage treatment mechanism includes a transfer tank 10 connected to a vacuum pump 9. A stirring device 11 is installed on the transfer tank 10. The transfer tank 10 is connected to an aeration tank 12 via a pump body 1. The aeration tank 12 is connected to a sedimentation tank 13. The sedimentation tank 13 is connected to a filtration mechanism 14 via a pump body 2. The output end of the filtration mechanism 14 is connected to a water storage tank 15. The water storage tank 15 is returned to the toilet pit 6 via a pump body 3.
[0024] In this embodiment, the filtration mechanism 14 includes a membrane filtration module, an adsorption module, and an oxidant module, which are arranged sequentially according to the water flow direction.
[0025] In this embodiment, the odor purification component includes a centrifugal fan 16 located in the integrated room, with a biological filter at the input end of the centrifugal fan 16 and an exhaust pipe 7 at the output end of the centrifugal fan 16.
[0026] In this embodiment, a UV processor is provided at the end of the exhaust pipe 7.
[0027] The instructions for using this bathroom include the following steps:
[0028] S01: Jack b17 lifts the box body 1 and places the transfer track 2 under the caster wheel 3. Then, jack a4 is lifted, jack b17 is folded, and the box body 1 is moved along the transfer track 2 to the top of the tunnel track. Then, jack b17 is lifted again, jack a4 is folded, and the transfer track 2 is removed. The caster wheel 3 is turned and placed on the tunnel track, and moved along it. This facilitates movement by using the track laid in the tunnel, reducing movement costs.
[0029] S02: Feces are pumped to transfer tank 10 by vacuum pump 9 and a small amount of water. Stirring device 11 crushes the contents of transfer tank 10 and then enters aeration tank 12. Aerobic microorganisms in aeration tank 12 decompose feces and urine, converting organic matter into CO2 and H2O.
[0030] S03: The residue after decomposition in S02 enters the sedimentation tank 13 for sedimentation. The supernatant of the sediment is filtered by the filtration mechanism 14 and stored in the water storage tank 15 for replenishing the small amount of water in S02.
[0031] S04: Centrifugal fan 16 collects gas in the integrated room, filters and purifies it through membrane filtration module, adsorption module and oxidant module, and finally processes it through UV processor 8 to meet emission standards.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A biodegradable toilet for tunnel construction, comprising a box (1), the box (1) being divided into an integrated room and several toilets, each toilet having a door (5) and a latrine (6), characterized in that, The bottom of the box (1) is equipped with a lifting transfer component, and the integrated room is equipped with a sewage treatment mechanism and an odor purification component. The sewage treatment mechanism is connected to the toilet pit (6) through a vacuum pump (9).
2. The biodegradable toilet for tunnel construction according to claim 1, characterized in that, The lifting and transfer assembly includes jacks b (17) installed at the four corners of the box (1), and rectangular casters (3) are provided at the bottom of the box (1). A transfer track (2) is provided below the casters (3), and jacks a (4) are provided below the end of the transfer track (2).
3. A biodegradable toilet for tunnel construction according to claim 2, characterized in that, A rotation angle locking mechanism is provided between the caster wheel (3) and the housing (1).
4. A biodegradable toilet for tunnel construction according to claim 3, characterized in that, The sewage treatment mechanism includes a transfer tank (10) connected to a vacuum pump (9), a stirring device (11) is installed on the transfer tank (10), the transfer tank (10) is connected to an aeration tank (12) through a pump body one, the aeration tank (12) is connected to a sedimentation tank (13), the sedimentation tank (13) is connected to a filter mechanism (14) through a pump body two, the output end of the filter mechanism (14) is connected to a water storage tank (15), and the water storage tank (15) is returned to the toilet pit (6) through a pump body three.
5. A biodegradable toilet for tunnel construction according to claim 4, characterized in that, The filtration mechanism (14) includes a membrane filtration module, an adsorption module, and an oxidant module, which are arranged sequentially according to the water flow direction.
6. A biodegradable toilet for tunnel construction according to claim 5, characterized in that, The odor purification component includes a centrifugal fan (16) located in the integrated room. The input end of the centrifugal fan (16) is equipped with a biological filter, and the output end of the centrifugal fan (16) is equipped with an exhaust pipe (7).
7. A biodegradable toilet for tunnel construction according to claim 6, characterized in that, A UV processor is provided at the end of the exhaust pipe (7).