A portable toilet

Abstract

A portable toilet comprises a clean water tank and a sewage tank, the clean water tank is detachably mounted above the sewage tank; characterized in that: the top front side of the sewage tank is provided with an extendable pull rod, and the bottom rear side of the sewage tank is provided with a moving wheel; the extendable pull rod can be pulled out forward to the front side of the sewage tank or be retracted backward to hide in the top surface of the sewage tank and form a carrying handle. The top of the sewage tank is provided with an extendable pull rod, which can be conveniently pulled out forward to the front side of the sewage tank, and then the moving wheel at the bottom rear side of the sewage tank can be used to pull and move the whole portable toilet or the sewage tank alone, which is convenient and labor-saving, and the sewage tank does not need to be lifted or stood sideways in advance, can be easily pulled and controlled like a pull rod box, and is not easy to cause sewage leakage.

Description

Technical Field

[0001] This utility model relates to the technical field of toilets, and in particular to a portable toilet. Background Technology

[0002] Toilets are a common sanitary fixture in people's daily lives. Traditional toilets are fixed in place and cannot be moved or carried, failing to meet people's needs for relieving themselves while traveling or in the wild. Therefore, some portable toilets that can be moved and carried have appeared on the market.

[0003] Portable toilets typically have a waste tank to store waste and sewage. When the tank is full, it needs to be emptied promptly to ensure hygiene. However, the waste tank is heavy, making it difficult and inconvenient to move. Therefore, some existing portable toilets have a flip-up lever or rope on the bottom of the waste tank, which, along with wheels, allows for easy transport. However, flip-up levers require the heavy tank to be tilted 90 degrees to open the lever, which is also laborious and prone to spillage. Ropes, on the other hand, are inconvenient to use, lack rigidity, and are difficult to use smoothly to move the waste tank. Utility Model Content

[0004] The purpose of this utility model is to provide a portable toilet that is convenient and labor-saving to move and empty.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A portable toilet includes a fresh water tank and a waste water tank, with the fresh water tank detachably mounted above the waste water tank; the waste water tank has a telescopic rod on the top front side and casters on the bottom rear side; the telescopic rod can be pulled forward to extend the front of the waste water tank or retracted backward to hide in the top surface of the waste water tank and form a carrying handle.

[0007] Furthermore, the top surface of the sewage tank is recessed to form a pull rod groove that connects to the front side of the sewage tank, and the telescopic pull rod is installed in the pull rod groove.

[0008] Furthermore, the telescopic rod includes two telescopic rods on the left and right and handles at the front ends of the two rods, with buttons on the handles to control whether the rods are telescopic; the rod groove includes two rod grooves extending forward and backward on the left and right and a handle groove extending left and right between the front ends of the two rod grooves.

[0009] Furthermore, a locking piece is installed on the top surface of the rear end of the rod groove, which locks and fixes the rear end of the telescopic rod in the rod groove; a fixing groove is provided on the rear side of the handle groove and the front side of the rod groove, and a fixing member is installed in the fixing groove. The fixing member has through holes at both ends for the rod to pass through.

[0010] Furthermore, a clearance groove is recessed at the bottom of the handle groove.

[0011] Furthermore, a tissue groove is recessed on the right side of the top surface of the sewage tank, and the tissue groove is also laterally connected to the side of the sewage tank. A tissue rotating shaft is installed in the tissue groove, and a tubular toilet paper is inserted through the tissue rotating shaft.

[0012] Furthermore, the sewage tank includes a sewage tank cover and a sewage tank body that are fixed together, with a sewage cavity formed between the sewage tank cover and the sewage tank body; a sewage outlet communicating with the sewage cavity is provided in the middle of the top surface of the sewage tank, and the sewage outlet is aligned with the bottom sewage outlet of the clean water tank toilet bowl; a rotary drain valve is provided at the bottom of the sewage tank cover, located below the telescopic pull rod.

[0013] Furthermore, the rotary drain valve includes a drain valve mounting base, a drain valve actuator, a drain valve driven component, and a valve plate; the drain valve mounting base is fixed to the bottom of the sewage tank cover and has an arc-shaped track located on one side of the sewage outlet; one end of the drain valve actuator is rotatably connected to the sewage tank cover and is provided with a drain valve knob that passes upward through the sewage tank cover, and the other end of the drain valve actuator slides on the track, and when the drain valve knob is rotated, it drives the other end of the drain valve actuator to slide along the track; one end of the drain valve driven component is rotatably connected to the bottom surface of the sewage tank cover, and the other end of the drain valve driven component is connected to the end of the drain valve actuator near the track, and the other end of the drain valve driven component is provided with a valve plate that can be used to block the sewage outlet.

[0014] Furthermore, the bottom surface of the clean water tank is provided with a movable groove on the left or right side that is laterally connected to the side of the clean water tank. A drain handle is swayably installed in the movable groove. The outer end of the drain handle extends out of the side of the clean water tank, and the inner end of the drain handle is a control part. The top of the control part is rotatably connected to the bottom surface of the clean water tank, and the bottom of the control part has a groove for the drain valve knob of the rotary drain valve to be fitted.

[0015] The sewage tank is provided with a locking post on the rear side of the top surface, and the top of the locking post has a necked groove;

[0016] The bottom rear side of the clean water tank is provided with a locking groove that is laterally connected to the rear side of the clean water tank. A locking mechanism is installed in the locking groove. The locking mechanism includes a locking element, a locking elastic element, a linkage element, and a linkage elastic element.

[0017] The bottom surface of the clean water tank is also provided with a linkage groove that connects the locking groove and the movable groove;

[0018] The locking component includes a main body that can be slidably installed inside the locking groove. The bottom surface of the main body has a positioning groove for inserting a locking pin. The left side of the positioning groove is provided with a limiting groove for locking the necking groove. The rear side of the main body is provided with a knob located outside the locking groove. The right end of the main body near the linkage groove is provided with a limiting hook. The locking elastic element provides a spring force to move the main body toward the direction of the limiting hook and to keep the limiting groove moving to the right. The rightward movement of the limiting groove is used to limit the necking groove of the locking groove. The linkage element can be slidably connected to the linkage groove. The linkage elastic element provides a spring force to move the linkage element toward the locking groove. The control part located in the movable groove is cam-shaped. When the drain handle is swung to open the sewage outlet, it drives the control part to rotate. The protrusion of the control part abuts against one end of the linkage element, causing the linkage element to slide in the linkage groove, overcoming the spring force of the linkage elastic element, and causing the other end of the linkage element to extend into the locking groove to limit the limiting hook.

[0019] Furthermore, it also includes a cover; the cover can be opened and closed to cover the top surface of the toilet bowl in the middle of the clean water tank; the top of the sewage tank cover has two hooks on the front side and two positioning posts on the rear side; the bottom of the clean water tank has two aligning hooks on the front side and two positioning holes for the aligning positioning posts on the rear side; the sewage tank also has a rear handle on the back.

[0020] With the above technical solution, the top of the sewage tank is equipped with a telescopic rod. This telescopic rod allows the front of the sewage tank to be easily pulled forward. Then, using the casters on the rear bottom of the sewage tank, the entire portable toilet or the individual sewage tank can be pulled and moved. It is convenient and labor-saving to use, eliminating the need to lift or stand the sewage tank upright in advance. It can be pulled and controlled as easily as pulling a suitcase, and it is less likely to cause sewage spillage. Moreover, the telescopic rod in the retracted state can be used as a carrying handle. Attached Figure Description

[0021] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0022] Figure 2 This is a perspective view of the sewage tank according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the telescopic rod being extended according to an embodiment of the present utility model;

[0024] Figure 4 This is an exploded view of the sewage tank according to an embodiment of the present utility model;

[0025] Figure 5 This is a bottom view of the portable toilet with concealed sewage tank according to an embodiment of the present invention;

[0026] Figure 6 This is another perspective view of an embodiment of the present utility model;

[0027] Figure 7 This is a perspective view of the clean water tank according to an embodiment of the present utility model;

[0028] Figure 8 This is an exploded view of the clean water tank according to an embodiment of the present utility model;

[0029] Figure 9 This is a bottom view of the water tank in an embodiment of this utility model.

[0030] Product Number Description: Portable Toilet 100, Seat 10, Clean Water Tank 20, Buckle 201, Positioning Hole 202, Manual Pump 203, Water Filling Cover 204, Toilet Bowl 21, Sewage Outlet 211, Movable Groove 22, Sewage Handle 23, Control Unit 231, Embedded Groove 232, Locking Groove 24, Locking Mechanism 25, Locking Component 251, Main Body 2511, Positioning Groove 2512, Limiting Slot 2513, Toggle Button 2514, Limiting Hook 2515, Locking Elastic Component 252, Linking Component 253, Linking Elastic Component 254, Mounting Long Groove 255, Mounting Screw 256, Linking Groove 26, Sewage Tank 30, Sewage Tank Cover 301, Sewage Tank Body 302, Sewage Chamber 303, Rear Handle 304 305, drain outlet, hook, positioning post, locking post, necking groove, telescopic pull rod, rod, handle, button, moving wheel, pull rod groove, rod groove, handle groove, locking piece, fixing groove, fixing piece, through hole, clearance groove, tissue box, tissue box shaft, tubular toilet paper, drain pipe, horizontal pipe, connecting elbow, plug, sewage outlet, rotary drain valve, drain valve fixing seat, track, drain valve driving element, drain valve knob, drain valve driven element, valve plate, and valve plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] like Figure 1 As shown, a portable toilet 100 of this embodiment includes a cover plate 10, a clean water tank 20 and a waste water tank 30. The clean water tank 20 is detachably installed above the waste water tank 30, and the cover plate 10 can be opened and closed to cover the top surface of the toilet bowl 21 in the middle of the clean water tank 20.

[0033] See Figure 2 and Figure 3The sewage tank 30 has a telescopic pull rod 31 on the top front side and a movable wheel 32 on the bottom rear side. The telescopic pull rod 31 is located on the top of the sewage tank 30, which can be easily pulled forward to extend the front of the sewage tank 30. Then, the movable wheel 32 on the bottom rear side of the sewage tank 30 can be used to pull and move the entire portable toilet 100 or the sewage tank 30 separately. It is convenient and labor-saving to use, without the need to lift or stand the sewage tank 30 on its side in advance. It can be pulled and controlled as easily as pulling a suitcase, and it is less likely to cause sewage spillage.

[0034] See Figure 4 As shown, the sewage tank 30 includes a sewage tank cover 301 and a sewage tank body 302 that are fixed together by the upper and lower parts, and a sewage cavity 303 is formed between the sewage tank cover 301 and the sewage tank body 302.

[0035] The top surface of the sewage tank cover 301 is recessed with a pull rod groove 33 that connects to the front side of the sewage tank 30 to facilitate manufacturing. The telescopic pull rod 31 is installed in the pull rod groove 33. In this embodiment, the telescopic pull rod 31 can adopt the structure of the prior art, which may include two three-section telescopic rods 311 on the left and right and handles 312 at the front ends of the two rods 311. The handles 312 are provided with buttons 313 to control whether the rods 311 are extended or retracted. Correspondingly, the pull rod groove 33 may include two rod grooves 331 extending forward and backward on the left and right and a handle groove 332 extending left and right between the front ends of the two rod grooves 331.

[0036] A locking piece 333 is installed on the top surface of the rear end of the rod groove 331. The locking piece 333 locks and fixes the rear end of the rod 311 of the telescopic rod 31 in the rod groove 331.

[0037] A fixing groove 334 can be provided on the rear side of the handle groove 332 and the front side of the rod groove 331. A fixing member 335 can be locked and installed in the fixing groove 334. The fixing member 335 has through holes 3351 at both ends for the rod 311 to pass through. At the same time, the through holes 3351 also fix and limit the front end of the rod 311. In addition, the fixing member 335 can strengthen the structural strength of the front side of the top of the sewage tank 30, ensure that the telescopic rod 31 is stable and reliable under force, and ensure the service life of the telescopic rod 31 and the sewage tank cover 301.

[0038] The bottom of the handle groove 332 may also be recessed with a relief groove 336 to facilitate the insertion of a hand to control the handle 312.

[0039] In the retracted and hidden state, the telescopic rod 31 of this embodiment can also be used as a carrying handle 312 for the portable toilet 100. The back of the sewage tank 30 of the portable toilet 100 can also be provided with a rear handle 304 to facilitate the carrying of the portable toilet 100 and the sewage tank 30 when needed.

[0040] In this embodiment, a tissue tray 34 may be recessed on the right side of the top surface of the sewage tank cover 301. The tissue tray 34 is also laterally connected to the side of the sewage tank 30. A tissue rotating shaft 341 is installed in the tissue tray 34. A tubular toilet paper 342 can be inserted into the tissue rotating shaft 341 so that the toilet paper can be easily taken out and used after using the toilet.

[0041] In this embodiment, a drain pipe 35 can be installed on the rear side of the tissue box 34. The drain pipe 35 includes an integrally connected horizontal pipe 351 and a connecting elbow 352. A plug 353 is installed at the open end of the horizontal pipe 351. The connecting elbow 352 is rotatably connected to the drain port 305 of the sewage tank cover 301. The drain port 305 is connected downward to the sewage chamber 303. When sewage needs to be discharged, the clean water tank 20 is removed, the drain pipe 35 is rotated so that the open end of the horizontal pipe 351 faces outward, and then the telescopic rod 31 is extended. The sewage tank 30 can be lifted up and placed on its side with the help of the longer telescopic rod 31. Then, the plug 353 of the horizontal pipe 351 can be opened to discharge sewage.

[0042] In this embodiment, a sewage outlet 36 communicating with the sewage chamber 303 is provided at a position slightly rearward from the center of the sewage tank cover 301. The sewage outlet 36 can be located between two rod grooves 331, and the sewage outlet 36 is aligned with the bottom sewage outlet 211 of the toilet bowl 21 in the clean water tank 20. A rotary drain valve 4 is provided at the bottom of the sewage tank cover 301, located below the rod groove 33. The rotary drain valve 4 includes a drain valve fixing seat 41, a drain valve driving component 42, a drain valve driven component 43, and a valve plate 44. The rotary drain valve 4 can be set vertically with the telescopic rod 31, so that the conduction between the sewage outlet 36 and the sewage chamber 303 is not affected by the telescopic rod 31, and the space can be fully utilized to ensure a compact structure and ensure that the capacity of the sewage chamber 303 is not affected.

[0043] See Figure 5 In this embodiment, the drain valve fixing seat 41 is fixed to the bottom of the sewage tank cover 301 and has an arc-shaped track 411 located on one side of the sewage outlet 36; one end of the drain valve actuator 42 is rotatably connected to the sewage tank cover 301 and is provided with a drain valve knob 421 that passes upward through the sewage tank cover 301, and the other end of the drain valve actuator 42 is slidably connected to the track 411. When the drain valve knob 421 is rotated, it drives the other end of the drain valve actuator 42 to slide along the track 411; one end of the drain valve driven member 43 is rotatably connected to the bottom surface of the sewage tank cover 301, and the other end of the drain valve driven member 43 is connected to the end of the drain valve actuator 42 located near the track 411, and is provided with a valve plate 44 that can be moved to block the sewage outlet 36; thus, when the other end of the drain valve actuator 42 rotates along the track 411, it can drive the valve plate 44 of the drain valve driven member 43 to rotate, so as to open or close the sewage outlet 36. The specific structure of the rotary drain valve 4 can also refer to existing technologies.

[0044] like Figures 6 to 9 As shown, the bottom left or right side of the clean water tank 20 may be provided with a movable groove 22 that communicates with the side of the clean water tank 20. A drain handle 23 is swayably installed in the movable groove 22. The outer end of the drain handle 23 extends out of the side of the clean water tank 20, and the inner end of the drain handle 23 is a control part 231. The top of the control part 231 is rotatably connected to the bottom of the clean water tank 20, and the bottom of the control part 231 has a groove 232 for the drain valve knob 421 to be fitted.

[0045] Therefore, after the clean water tank 20 and the sewage tank 30 are installed and fixed, the control part 231 at the inner end of the sewage handle 23 can be rotated by swinging the outer end of the sewage discharge handle 23. The rotation of the control part 231 drives the sewage discharge valve knob 421 to rotate, thereby controlling the valve plate 44 of the sewage discharge valve to open or close the sewage outlet 36, so that the sewage and waste in the toilet bowl 21 of the clean water tank 20 can flow from the sewage outlet 36 into the sewage chamber 303 for temporary storage along the sewage outlet 211.

[0046] In this embodiment, the top front side of the sewage tank cover 301 may be provided with two hooks 306, and the rear side may be provided with two positioning posts 307. At the same time, the bottom front side of the clean water tank 20 is provided with two aligning hooks 306 fasteners 201, and the rear side is provided with two aligning positioning posts 307 positioning holes 202, so as to facilitate the vertical alignment of the clean water tank 20 and the sewage tank 30, and ensure that the lower sewage outlet 211 and the sewage outlet 36 are aligned with each other.

[0047] The sewage tank 30 may be provided with a locking post 308 on the rear side of its top surface, and the top of the locking post 308 has a necked groove 3081; the clean water tank 20 may be provided with a locking groove 24 on the rear side of its bottom surface, which is laterally connected to the rear side of the clean water tank 20, and a locking mechanism 25 is installed in the locking groove 24. The locking mechanism 25 includes a locking element 251, a locking elastic element 252, a linkage element 253, and a linkage elastic element 254; the locking mechanism 25 is used to lock the locking post 308 when the clean water tank 20 is installed on top of the sewage tank 30, so as to prevent the clean water tank 20 and the sewage tank 30 from being accidentally separated.

[0048] Specifically, the bottom surface of the clean water tank 20 is also provided with a linkage groove 26 that connects the locking groove 24 and the movable groove 22. In this embodiment, both the movable groove 22 and the linkage groove 26 are located on the right side of the clean water tank 20, but this is not a limitation.

[0049] The locking member 251 includes a main body 2511 that is slidably mounted on the inner side of the locking groove 24. The bottom surface of the main body 2511 has a positioning groove 2512 for the locking pin 308 to be inserted. The left side of the positioning groove 2512 is provided with a limiting groove 2513 for locking the necking groove 3081. The rear side of the main body 2511 is provided with a toggle button 2514 located outside the locking groove 24. The right end of the main body 2511 near the linkage groove 26 is provided with a limiting hook 2515. The locking elastic member 252 is used to provide a way for the main body 2511 to face towards the locking groove 26. The elastic force of the near-limit hook 2515 moving in the direction of movement, and the rightward movement of the limit slot 2513, can be used to limit the necking slot 3081 of the locking slot 24, preventing the clean water tank 20 and the wastewater tank 30 from accidentally separating vertically. When unlocking is required, simply insert a finger into the front of the locking slot 24 and turn the lever 2514 to the left to overcome the elastic force of the locking elastic element 252 and drive the main body 2511 to move to the left, causing the limit slot 2513 to disengage from the necking slot 3081.

[0050] The linkage 253 is reciprocally slidably connected in the linkage groove 26, and the linkage elastic member 254 provides elastic force to make the linkage 253 move toward the locking groove 24. The control part 231 located in the movable groove 22 can be cam-shaped. When the drain handle 23 swings to open the sewage outlet 36, it drives the control part 231 to rotate. The protrusion of the control part 231 can abut against one end of the linkage 253 to overcome the elastic force of the linkage elastic member 254 and make the other end of the linkage 253 extend into the locking groove 24 to limit the limit hook 2515. When the sewage outlet 36 is opened, the locking member 251 can be restricted to prevent it from moving to the left, preventing the clean water tank 20 and the sewage tank 30 from separating during the sewage discharge process and avoiding sewage leakage. After the drain handle 23 is reset and the sewage outlet 36 is closed, the linkage 253 is reset under the action of the linkage elastic element 254 to limit the limit hook 2515, so that the locking element 251 can move normally.

[0051] In this embodiment, at least one vertically extending mounting groove 255 can be provided in both the main body 2511 and the linkage 253 of the locking member 251. A mounting screw 256 can be locked into one end of the mounting groove 255 to facilitate the locking member 251 being installed and limited in the locking groove 24 corresponding to the clean water tank 20. At the same time, the locking elastic member 252 and the linkage elastic member 254 can be springs respectively installed in the mounting groove 255 to provide corresponding elastic force.

[0052] In this embodiment, the top of the clean water tank 20 may also be equipped with a manual pump 203 and a water filling cover 204, etc. This part can refer to the prior art and is not the focus of this improvement, so it will not be described in detail.

[0053] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, equivalent changes and modifications without departing from the principle of this utility model should still fall within the protection scope of this utility model.

[0054] In the description of the embodiments of this application, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use, or the orientations or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, "a plurality of" and "several" mean two or more, unless otherwise explicitly specified.

Claims

1. A portable toilet, comprising a fresh water tank and a waste water tank, wherein the fresh water tank is detachably mounted above the waste water tank; characterized in that: The sewage tank is equipped with a telescopic rod on the top front side and a caster wheel on the bottom rear side; the telescopic rod can be pulled forward to extend the front of the sewage tank or retracted backward to hide in the top surface of the sewage tank and form a handling handle.

2. A portable toilet according to claim 1, characterized in that: The top surface of the sewage tank is recessed into a pull rod groove that connects to the front side of the sewage tank, and the telescopic pull rod is installed in the pull rod groove.

3. A portable toilet according to claim 2, characterized in that: The telescopic rod includes two telescopic rods on the left and right, and handles at the front ends of the two rods. The handles are equipped with buttons to control whether the rods are telescopic or not. The rod groove includes two rod grooves extending forward and backward on the left and right, and a handle groove extending left and right between the front ends of the two rod grooves.

4. A portable toilet according to claim 3, characterized in that: A locking piece is installed on the top surface of the rear end of the rod groove, which locks and fixes the rear end of the telescopic rod in the rod groove; a fixing groove is provided on the rear side of the handle groove and the front side of the rod groove, and a fixing member is installed in the fixing groove. The fixing member has through holes at both ends for the rod to pass through.

5. A portable toilet according to claim 3, characterized in that: The bottom of the handle groove is also recessed with a clearance groove.

6. A portable toilet according to claim 1, characterized in that: A tissue tray is recessed on the right side of the top surface of the sewage tank. The tissue tray is also laterally connected to the side of the sewage tank. A tissue roller is installed inside the tissue tray, and a tubular toilet paper is inserted through the tissue roller.

7. A portable toilet according to claim 1, characterized in that: The sewage tank includes a sewage tank cover and a sewage tank body that are fixed together by upper and lower parts, forming a sewage cavity between the sewage tank cover and the sewage tank body; a sewage outlet communicating with the sewage cavity is provided in the middle of the top surface of the sewage tank, and the sewage outlet is aligned with the sewage outlet at the bottom of the clean water tank toilet bowl; a rotary drain valve is provided at the bottom of the sewage tank cover, located below the telescopic pull rod.

8. A portable toilet according to claim 7, characterized in that: The rotary drain valve includes a drain valve mounting base, a drain valve actuator, a drain valve driven component, and a valve plate. The drain valve mounting base is fixed to the bottom of the sewage tank cover and has an arc-shaped track located on one side of the sewage outlet. One end of the drain valve actuator is rotatably connected to the sewage tank cover and has a drain valve knob that extends upward through the sewage tank cover. The other end of the drain valve actuator slides on the track, and when the drain valve knob is rotated, it drives the other end of the drain valve actuator to slide along the track. One end of the drain valve driven component is rotatably connected to the bottom surface of the sewage tank cover, and the other end of the drain valve driven component is connected to the end of the drain valve actuator near the track. The other end of the drain valve driven component has a valve plate that can be used to block the sewage outlet.

9. A portable toilet according to claim 7, characterized in that: The bottom surface of the clean water tank is provided with a movable groove on the left or right side of the clean water tank. A drain handle is oscillatingly installed in the movable groove. The outer end of the drain handle extends out of the side of the clean water tank, and the inner end of the drain handle is a control part. The top of the control part is rotatably connected to the bottom surface of the clean water tank, and the bottom of the control part has a groove for the drain valve knob of the rotary drain valve to be fitted. The sewage tank is provided with a locking post on the rear side of the top surface, and the top of the locking post has a necked groove; The bottom rear side of the clean water tank is provided with a locking groove that is laterally connected to the rear side of the clean water tank. A locking mechanism is installed in the locking groove. The locking mechanism includes a locking element, a locking elastic element, a linkage element, and a linkage elastic element. The bottom surface of the clean water tank is also provided with a linkage groove that connects the locking groove and the movable groove; The locking component includes a main body that can be slidably installed inside the locking groove. The bottom surface of the main body has a positioning groove for inserting a locking pin. The left side of the positioning groove is provided with a limiting groove for locking the necking groove. The rear side of the main body is provided with a knob located outside the locking groove. The right end of the main body near the linkage groove is provided with a limiting hook. The locking elastic element provides a spring force to move the main body toward the direction of the limiting hook and to keep the limiting groove moving to the right. The rightward movement of the limiting groove is used to limit the necking groove of the locking groove. The linkage element can be slidably connected to the linkage groove. The linkage elastic element provides a spring force to move the linkage element toward the locking groove. The control part located in the movable groove is cam-shaped. When the drain handle is swung to open the sewage outlet, it drives the control part to rotate. The protrusion of the control part abuts against one end of the linkage element, causing the linkage element to slide in the linkage groove, overcoming the spring force of the linkage elastic element, and causing the other end of the linkage element to extend into the locking groove to limit the limiting hook.

10. A portable toilet according to claim 1, characterized in that: It also includes a cover; the cover can be opened and closed to cover the top surface of the toilet bowl in the middle of the clean water tank; the top of the sewage tank cover has two hooks on the front side and two positioning posts on the rear side; the bottom of the clean water tank has two hooks on the front side and two positioning holes for the positioning posts on the rear side; the sewage tank also has a rear handle on the back.

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