A mobile public toilet supporting roll-molding fecal collection box

Abstract

The utility model discloses a mobile public lavatory is matched with rotomoulded collection of excrement box, including through rotomolding process integrated moulding's box, the top of box has excrement entry, and the bottom of box is provided with excrement exit, the box has an inner chamber, and this inner chamber is formed by bottom inner surface and multiple vertical setting circumferential inner surface, and multiple circumferential inner surface is enclosed into a closed structure, and every circumferential inner surface all intersects with bottom inner surface, in the utility model, after the intersection of circumferential inner surface and bottom inner surface, it is provided with obtuse angle or smooth arc transition surface, can make excrement not gather at the junction between circumferential inner surface and bottom inner surface, and simultaneously, bottom inner surface sets up recessed to the center of bottom inner surface with the intersection position of bottom inner surface and circumferential inner surface as the starting point, can make the excrement that enters the inner chamber all gather towards excrement exit, and it is convenient for the discharge of subsequent excrement.

Description

Technical Field

[0001] This utility model relates to the technical field of waste collection boxes for public toilets, specifically to a rotomolded waste collection box for use with mobile public toilets. Background Technology

[0002] Portable toilets, as an important component of urban public facilities, are widely used in environments lacking fixed sewage pipes, such as tourist attractions, construction sites, and temporary activity venues, due to their flexibility and rapid deployment. The waste collection tank is the core component of a portable toilet, responsible for the temporary storage and transfer of waste.

[0003] Currently, most rotomolded waste collection boxes are rectangular or quadrilateral structures with openings. They are easy to install and have a simple structure. When in use, they can fully hold waste and work with the sewage system of mobile toilets to complete sealed collection.

[0004] However, this structure still has some shortcomings in practical use, as follows:

[0005] First, the rectangular or open quadrilateral structure has a flat bottom design. The corners of such flat-bottomed containers are mostly right angles or rounded corners with a small radius. When excrement and other waste are discharged, they tend to accumulate in the corners and are difficult to remove completely by natural flow or rinsing. After long-term use, the residue will adhere to the container walls and form hardened clumps.

[0006] Secondly, the flat-bottomed quadrilateral structure has poor sewage discharge effect. Under the action of gravity, the sewage does not easily concentrate at the discharge outlet, resulting in incomplete emptying and easy retention.

[0007] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0008] The purpose of this invention is to provide a rotomolded waste collection box for use with mobile public toilets.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A rotationally molded waste collection box for a portable toilet includes a box body integrally formed by rotational molding. The top of the box body has a waste inlet, and the bottom of the box body has a waste outlet. The box body has an inner cavity, which is formed by a bottom inner surface and multiple vertically arranged peripheral inner surfaces. The multiple peripheral inner surfaces form a circumferential closed structure. Each peripheral inner surface intersects with the bottom inner surface, and the cross-section at the intersection is set with an obtuse angle or a smooth arc transition surface. On the bottom inner surface, a depression is set from the intersection of the bottom inner surface and the peripheral inner surfaces towards the center of the bottom inner surface, and the waste outlet is set at the corresponding depression.

[0011] In the above scheme, the inner surface of the periphery and the inner surface of the bottom are set to form an obtuse angle or a smooth arc transition surface, which can prevent feces from accumulating at the connection between the inner surface of the periphery and the inner surface of the bottom. At the same time, the inner surface of the bottom is set to be concave towards the center of the inner surface of the bottom, starting from the intersection of the inner surface of the bottom and the inner surface of the periphery, so that the feces entering the inner cavity will converge towards the feces discharge outlet, which facilitates the subsequent discharge of feces.

[0012] Unlike existing technologies, the inner surface of the periphery and the inner surface of the bottom are designed to form an obtuse angle or a smooth arc transition surface, which can make feces quickly move away from the corner and reduce the probability of adhesion. At the same time, the concave design of the inner surface of the bottom can make feces automatically converge towards the feces discharge outlet, further reducing the probability of feces adhesion.

[0013] In a further technical solution, four peripheral inner surfaces are provided, and the four peripheral inner surfaces form a quadrilateral circumferential closed structure.

[0014] With the above design, the container can still be adapted to current public toilets, because most common rotomolded toilet containers are rectangular or quadrilateral structures with openings. This application does not change the overall shape of the container, and the installation of the container can adopt the installation method in the prior art, so that the installation efficiency is not affected.

[0015] A further technical solution is provided, wherein the bottom inner surface includes a first concave surface, a second concave surface, a third concave surface, and a fourth concave surface; the first concave surface, the second concave surface, the third concave surface, and the fourth concave surface are arranged circumferentially around the axis of the fecal discharge outlet, and the surfaces intersect to form a curved surface structure that is concave towards the fecal discharge outlet, and the first concave surface, the second concave surface, the third concave surface, and the fourth concave surface are respectively provided in correspondence with the four peripheral inner surfaces.

[0016] With the above design, the bottom inner surface is a composite curved surface formed by the fusion of four regions, and the cross-section of the curved surface is a quadrilateral star or an approximately frustum shape formed by circumferential splicing of four curved surface units. In this way, each concave surface can guide the feces to the feces discharge outlet.

[0017] In a further technical solution, a plurality of screw mounting slots are provided on the outer peripheral side of the housing corresponding to the location of the circumferential closed structure, and each screw mounting slot is recessed on the outer peripheral side of the housing.

[0018] The above design allows the enclosure to be quickly installed and secured.

[0019] A further technical solution involves providing a liquid injection port at the top of the enclosure. This design allows for the injection of a degradation solution or disinfectant to aid in the removal of feces from the interior cavity. For example, a decomposition solvent can be added to render the feces harmless before collection.

[0020] A further technical solution involves providing multiple spray nozzles on the outer periphery of the housing corresponding to the location of the circumferentially enclosed structure. All spray nozzles are positioned on two opposing or adjacent inner surfaces of the periphery. This design allows liquid to be injected into the inner cavity through the spray nozzles, flushing the inner wall of the cavity and achieving a better cleaning effect. Furthermore, the fact that all spray nozzles are positioned on two opposing or adjacent inner surfaces means that the operator can change the flushing position to ensure that all areas of the inner cavity are flushed.

[0021] A further technical solution is to provide an observation port on the outer periphery of the box corresponding to the location of the circumferential closed structure.

[0022] With the above design, the internal condition of the cavity can be viewed through the observation port, making it convenient for the operator to promptly discharge accumulated feces or check the cleaning effect.

[0023] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0024] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0025] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0026] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing this case.

[0027] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0028] The working principle and advantages of this utility model are as follows:

[0029] In this invention, the inner surface of the periphery and the inner surface of the bottom intersect at an obtuse angle or a smooth arc transition surface, which prevents feces from accumulating at the junction between the inner surface of the periphery and the inner surface of the bottom. At the same time, the inner surface of the bottom is recessed towards the center of the inner surface of the bottom, starting from the intersection of the inner surface of the bottom and the inner surface of the periphery, which allows feces entering the inner cavity to converge towards the feces discharge outlet, facilitating the subsequent discharge of feces.

[0030] Unlike existing technologies, the inner surface of the periphery and the inner surface of the bottom are designed to form an obtuse angle or a smooth arc transition surface, which can make feces quickly move away from the corner and reduce the probability of adhesion. At the same time, the concave design of the inner surface of the bottom can make feces automatically converge towards the feces discharge outlet, further reducing the probability of feces adhesion. Attached Figure Description

[0031] Appendix Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0032] Appendix Figure 2 This is a schematic diagram of the observation port structure in an embodiment of the present utility model;

[0033] Appendix Figure 3 This is a schematic diagram of the main structure of the box in an embodiment of the present utility model;

[0034] Appendix Figure 4 This is a bottom view of the box structure in an embodiment of the present utility model;

[0035] Appendix Figure 5 This is a schematic diagram of the fecal discharge outlet structure in an embodiment of the present utility model;

[0036] Appendix Figure 6 This is a cross-sectional view (longitudinal section) of the box body in an embodiment of this utility model.

[0037] Appendix Figure 7 This is a schematic diagram of the bottom inner surface structure in an embodiment of the present invention.

[0038] In the attached diagrams above: 1. Box body;

[0039] 11. Fecal inlet; 12. Fecal outlet; 13. Inner cavity; 14. Screw mounting slot; 15. Liquid injection port; 16. Spray nozzle; 17. Observation port;

[0040] 131. Bottom inner surface; 132. Peripheral inner surface;

[0041] 1311, First concave surface; 1312, Second concave surface; 1313, Third concave surface; 1314, Fourth concave surface. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0043] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0044] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0045] See appendix Figure 1 - Figure 7 As shown, a rotational molding waste collection box for a mobile public toilet includes a box body 1 integrally formed by rotational molding. The top of the box body 1 has a waste inlet 11, and the bottom of the box body 1 has a waste outlet 12. The box body 1 has an inner cavity 13, which is composed of a bottom inner surface 131 and a plurality of vertically arranged peripheral inner surfaces 132. The plurality of peripheral inner surfaces 132 form a circumferential closed structure. Each peripheral inner surface 132 intersects with the bottom inner surface 131, and the cross-section at the intersection is set as an obtuse angle or a smooth arc transition surface. On the bottom inner surface 131, starting from the intersection position of the bottom inner surface 131 and the peripheral inner surfaces 132, a depression is set towards the center of the bottom inner surface 131, and the waste outlet 12 is set at the corresponding depression.

[0046] In the above scheme, the cross-section at the intersection is set with an obtuse angle or a smooth arc transition surface. After the inner surface 132 of the periphery and the inner surface 131 of the bottom intersect, the included angle between the two needs to be greater than 90 degrees or be connected by a smooth and continuous large arc angle to ensure that the entire inner cavity 13 has no dead corners and that the sewage can naturally collect at the fecal discharge outlet 12 under the action of gravity. Preferably, the cross-section at the intersection is set with a smooth arc transition surface.

[0047] In the above scheme, the fecal discharge outlet 12 is set at the corresponding recess, usually at the lowest position of the recess, so that the feces can be fully discharged.

[0048] In the above scheme, the inner surface 132 of the periphery and the inner surface 131 of the bottom intersect at an obtuse angle or a smooth arc transition surface, which can prevent feces from accumulating at the connection between the inner surface 132 of the periphery and the inner surface 131 of the bottom. At the same time, the inner surface 131 of the bottom is recessed towards the center of the inner surface 131, starting from the intersection of the inner surface 131 of the bottom and the inner surface 132, so that the feces entering the inner cavity 13 can converge towards the feces discharge outlet 12, which facilitates the subsequent discharge of feces.

[0049] Unlike existing technologies, in this application, the inner surface 132 on the periphery and the inner surface 131 on the bottom intersect at an obtuse angle or a smooth arc transition surface, which can make feces quickly move away from the corner and reduce the probability of adhesion. At the same time, the inner surface 131 on the bottom is recessed, which can make feces automatically converge toward the feces discharge outlet 12, further reducing the probability of feces adhesion.

[0050] Preferably, four circumferential inner surfaces 132 are provided, and the four circumferential inner surfaces 132 form a quadrilateral circumferential closed structure.

[0051] It should be noted that the outer circumferential surface and the inner circumferential surface 132 are configured in the same way and in the same manner.

[0052] With the above design, the container 1 can still be adapted to the current public toilets, because most common rotomolded toilet boxes are rectangular or quadrilateral structures with openings. This application does not change the overall shape of the container 1, and the installation of the container 1 can adopt the installation method in the prior art, and its installation efficiency is not affected.

[0053] Preferably, the bottom inner surface 131 includes a first concave surface 1311, a second concave surface 1312, a third concave surface 1313, and a fourth concave surface 1314; the first concave surface 1311, the second concave surface 1312, the third concave surface 1313, and the fourth concave surface 1314 are arranged circumferentially around the axis of the fecal discharge outlet 12, and the surfaces intersect each other to form a curved surface structure that is concave towards the fecal discharge outlet 12, and the first concave surface 1311, the second concave surface 1312, the third concave surface 1313, and the fourth concave surface 1314 are respectively provided in a one-to-one correspondence with the four peripheral inner surfaces 132.

[0054] With the above design, the bottom inner surface 131 is a composite curved surface formed by the fusion of four regions, and the cross-section of the curved surface is a quadrilateral star or an approximately frustum shape formed by circumferential splicing of four curved surface units. In this way, each concave surface can guide the feces to the feces discharge outlet 12.

[0055] Preferably, a plurality of screw mounting slots 14 are provided on the outer periphery of the housing 1 at the location of the circumferential closed structure, and each screw mounting slot 14 is recessed on the outer periphery of the housing 1.

[0056] With the above design, the housing 1 can be quickly installed and fixed. Specifically, the bolts are directly inserted into the screw mounting slots 14, and then the bolts are guided out of the screw mounting slots 14 and connected to the external fixed position to achieve the fixation of the housing 1.

[0057] Preferably, the top of the housing 1 is provided with a liquid injection port 15. With the above design, a degradation solution or disinfectant can be injected through the liquid injection port 15 to help remove feces from the inside of the cavity 13. For example, a decomposition solvent can be added to render the feces harmless before collecting them.

[0058] Preferably, the outer periphery of the housing 1 is provided with multiple spray nozzles 16 corresponding to the location of the circumferential closed structure, and all the spray nozzles 16 are located on two opposite or adjacent inner surfaces 132 of the periphery. With this design, liquid can be injected into the inner cavity 13 through the spray nozzles 16 to flush the inner wall of the inner cavity 13, thereby achieving a better cleaning effect. The fact that all the spray nozzles 16 are located on two opposite or adjacent inner surfaces 132 means that the operator can change the flushing position to ensure that all parts of the inner cavity 13 can be flushed.

[0059] It should be noted that when the spray nozzle 16 is not in use, it can be sealed with a threaded bolt.

[0060] Preferably, an observation port 17 is provided on the outer periphery of the housing 1 at the location of the circumferential closed structure.

[0061] With the above design, the internal condition of the inner cavity 13 can be viewed through the observation port 17, which makes it convenient for the operator to promptly discharge the accumulated feces or check the cleaning effect.

[0062] Working principle:

[0063] Insert the bolt into the screw mounting slot 14, then guide the bolt through the screw mounting slot 14 and connect it to the external fixed position to fix the box 1. After that, connect the toilet seat (or squat toilet) of the public toilet to the feces inlet 11.

[0064] Subsequently, during use, feces enter the inner cavity 13. Due to the concave design of the bottom inner surface 131, the feces can automatically converge towards the feces discharge outlet 12. The smooth arc transition surface between the peripheral inner surface 132 and the bottom inner surface 131 prevents feces from accumulating at the connection between the peripheral inner surface 132 and the bottom inner surface 131. When the operator opens the feces discharge outlet 12, the feces will be discharged quickly. The feces at the connection between the peripheral inner surface 132 and the bottom inner surface 131 can flow quickly towards the feces discharge outlet 12 through the arc transition surface. At the same time, the operator can inject liquid into the inner cavity 13 through the spray nozzle 16 to flush the inner wall of the inner cavity 13, thereby achieving a better cleaning effect.

[0065] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A rotomolded waste collection box for use with a portable public toilet, characterized in that: It includes a box (1) integrally formed by rotational molding process, the top of the box (1) has a feces inlet (11), and the bottom of the box (1) is provided with a feces outlet (12). The box (1) has an inner cavity (13), which is composed of a bottom inner surface (131) and a plurality of vertically arranged peripheral inner surfaces (132). The plurality of peripheral inner surfaces (132) form a circumferential closed structure. Each peripheral inner surface (132) intersects with the bottom inner surface (131), and the cross-section at the intersection is set as an obtuse angle or a smooth arc transition surface. On the bottom inner surface (131), a depression is formed from the intersection of the bottom inner surface (131) and the peripheral inner surface (132) towards the center of the bottom inner surface (131), and the fecal outlet (12) is set at the corresponding depression; four peripheral inner surfaces (132) are provided, and the four peripheral inner surfaces (132) form a quadrilateral circumferential closed structure; the bottom inner surface (131) includes a first depression surface (1311), a second depression surface (1312), a third depression surface (1313) and a fourth depression surface (1314). The first concave surface (1311), the second concave surface (1312), the third concave surface (1313), and the fourth concave surface (1314) are arranged circumferentially around the axis of the fecal outlet (12), and the surfaces intersect each other to form a curved surface structure that is concave towards the fecal outlet (12). The first concave surface (1311), the second concave surface (1312), the third concave surface (1313), and the fourth concave surface (1314) are respectively provided in correspondence with the four peripheral inner surfaces (132).

2. The rotomolded waste collection box for mobile public toilets according to claim 1, characterized in that: The outer periphery of the box (1) is provided with a plurality of screw mounting slots (14) corresponding to the location of the circumferential closed structure. Each screw mounting slot (14) is formed by recessing on the outer periphery of the box (1).

3. The rotomolded waste collection box for mobile public toilets according to claim 1, characterized in that: The top of the box (1) is provided with a liquid injection port (15).

4. The rotomolded waste collection box for mobile public toilets according to claim 1, characterized in that: The outer periphery of the housing (1) is provided with multiple spray nozzles (16) corresponding to the location of the circumferential closed structure. All of the spray nozzles (16) are located on two opposite or adjacent inner surfaces (132) of the periphery.

5. The rotomolded waste collection box for mobile public toilets according to claim 1, characterized in that: An observation port (17) is provided on the outer periphery of the box (1) at the location of the circumferential closed structure.

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