Portable closestool exhaust structure, sewage tank and portable closestool

Abstract

The utility model discloses a portable closestool exhaust structure, a sewage tank and a portable closestool. The portable closestool exhaust structure comprises an exhaust notch formed in the sewage tank and an exhaust valve arranged in the exhaust notch. The exhaust notch is communicated with the inside and the outside of the sewage barrel; the exhaust valve comprises a valve seat and a piston body; the valve seat is detachably mounted in the exhaust notch, and a piston cavity and an exhaust channel for communicating the inside of the sewage bucket with the outside are arranged in the valve seat; a piston part of the piston body can be axially and movably arranged in a piston cavity of the valve seat, an operation part extending out of the valve seat is arranged in the middle of the outer end of the piston part of the piston body, and the operation part is exposed out of the surface of the sewage bucket; the operating part is controlled to drive the piston part to move in the piston cavity so as to open and close the exhaust channel; therefore, exhaust operation can be rapidly achieved through the exhaust valve, overpressure in the sewage bucket is prevented, negative pressure can be prevented from being generated in the sewage bucket, and sewage discharging is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of portable toilet, especially a portable toilet exhaust structure and sewage tank. BACKGROUND

[0002] The portable toilet is a kind of product that can meet the needs of people traveling and defecating in the field, and it is convenient to move and carry. Generally, the portable toilet is provided with a sewage tank for collecting sewage. Since the sewage tank can ferment and produce odor, it is required to have good sealing performance to avoid affecting the use experience. However, this leads to the fact that the pressure in the sewage tank is easily accumulated, causing the sewage tank to expand and deform. Moreover, the good sealing performance of the sewage tank also leads to the fact that when the sewage tank is discharging sewage, negative pressure is generated inside, making it difficult to discharge the sewage in the sewage tank, or it takes a long time to discharge. SUMMARY

[0003] The utility model discloses a portable toilet exhaust structure and sewage tank, which has the advantages of convenient and rapid exhaust and auxiliary timely sewage discharge.

[0004] In order to achieve the above purpose, the solution of the utility model is as follows:

[0005] A portable toilet exhaust structure, comprising an exhaust slot opening provided in a sewage tank and an exhaust valve provided in the exhaust slot opening;

[0006] The exhaust slot opening communicates the inside of the sewage tank with the outside;

[0007] The exhaust valve comprises a valve seat, a piston body, a piston spring and a valve seat baffle;

[0008] The valve seat is detachably installed in the exhaust slot opening, and the valve seat is provided with a piston cavity. One end of the piston cavity has an open end passing through the inner end of the valve seat and communicating with the inside of the sewage tank. The other end of the piston cavity has a through hole in the middle part, which communicates with the outer end of the valve seat. The through hole, the piston cavity and the open end form an exhaust passage that communicates the inside of the sewage tank with the outside;

[0009] The piston part of the piston body is axially movably arranged in the piston cavity of the valve seat. The outer end of the piston part of the piston body has an operating part extending from the through hole of the valve seat. The operating part is exposed on the surface of the sewage tank. The valve seat baffle is arranged at the open end of the piston cavity. The piston spring is arranged in the piston cavity and located between the piston part and the valve seat baffle;

[0010] The operating part is controlled to drive the piston part to move in the piston cavity to open and close the exhaust passage.

[0011] Further, the inner wall of the piston cavity is divided into a sealing circumferential surface close to the through hole and a guide circumferential surface close to the opening, the inner diameter of the sealing circumferential surface is smaller than that of the guide circumferential surface; the piston part is provided with a piston sealing ring, the piston part closes the exhaust passage when being located at the sealing circumferential surface, and the piston part opens the exhaust passage when being located at the guide circumferential surface.

[0012] Further, the guide circumferential surface is provided with a plurality of axially extending guide ribs which are circumferentially spaced, each guide rib is connected to the sealing circumferential surface, and the height of the guide rib protruding is flush with the sealing circumferential surface.

[0013] Further, the outer wall of the valve seat is provided with external threads, the side wall of the exhaust slot is provided with internal threads, the valve seat is detachably screwed into the exhaust slot, and the outer wall of the valve seat is further provided with a valve seat sealing ring for sealing the gap between the outer wall of the valve seat and the inner wall of the exhaust slot.

[0014] Further, the opening of the piston cavity of the valve seat is provided with two oppositely arranged clamping grooves, the outer circumferential wall of the valve seat stopper is provided with two clamping blocks, and the two clamping blocks are respectively used for rotatingly clamping in the two clamping grooves; the valve seat stopper is provided with a communication hole which is communicated with the piston cavity and the inside of the sewage tank.

[0015] Further, the operating part comprises a connecting part and a button; the connecting part protrudes from the middle part of the piston part, the inner recess of the connecting part is provided with a jack groove, and the button comprises a button part and a jack; the jack is connected to the jack groove.

[0016] Further, the exhaust valve further comprises a valve cover and a return spring; the valve cover is detachably covered outside the exhaust slot, the valve cover is provided with an operating hole corresponding to the button part; the button part of the button is movably extended out of the operating hole, and the inner edge of the button part is radially outwardly protruded with a stopper edge which is abutted against the inner edge of the operating hole; the jack of the button is movably inserted into the jack groove, and the return spring is sleeved on the outer circumferential wall of the jack, and the two ends are respectively abutted against the inner side of the button and the outer end of the valve seat.

[0017] Further, the inner wall of the exhaust slot is provided with two sockets, the valve cover is provided with two plug blocks which are protruded, and when the valve cover is covered outside the exhaust slot, the plug blocks are tightly inserted into the sockets.

[0018] The utility model also provides a sewage tank of portable closestool adopts the portable closestool exhaust structure.

[0019] The utility model also provides a portable closestool adopts the portable closestool exhaust structure.

[0020] By adopting the technical scheme, when it is needed to exhaust the sewage bucket, the operating part exposed on the surface of the sewage bucket only needs to be pressed to drive the piston part of the piston body to move in the piston cavity, thereby opening the exhaust passage, conducting the inside of the sewage bucket and the outside, realizing the exhaust operation, preventing overpressure in the inside of the sewage bucket, and also preventing negative pressure in the inside, which is beneficial to accelerating sewage discharge; and the exhaust valve is detachably installed on the sewage bucket, which is convenient for product assembly in the early stage, and if the exhaust valve part is damaged, the replacement and maintenance operation can be conveniently and quickly performed in the later stage. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a perspective view of a portable closestool according to an embodiment of the present application;

[0022] Figure 2 It is a perspective view of a sewage bucket according to an embodiment of the present application;

[0023] Figure 3 It is a schematic view of an exhaust structure according to an embodiment of the present application;

[0024] Figure 4 It is an exploded view of an exhaust valve of an exhaust structure according to an embodiment of the present application;

[0025] Figure 5 It is a sectional view of an exhaust structure according to an embodiment of the present application.

[0026] Label explanation: clean water bucket 1, sewage bucket 2, exhaust slot 21, internal thread 211, spigot 212, exhaust valve 3, valve seat 31, piston cavity 311, open mouth 312, through hole 313, sealing peripheral surface 314, conducting peripheral surface 315, guide rib 316, external thread 317, valve seat sealing ring 318, clamping groove 319, piston body 32, piston part 321, operating part 322, piston sealing ring 323, connecting part 324, button 325, jacking rod groove 326, button part 327, jacking rod 328, retaining rim 329, piston spring 33, valve seat stopper 34, clamping block 341, communication hole 342, valve cover 35, operating hole 351, insertion block 352, return spring 36. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] As Figure 1As shown, the portable toilet of the present embodiment comprises a clean water bucket 1 and a sewage bucket 2 arranged in a top-bottom manner, refer to Figure 2 The sewage bucket 2 is provided with the exhaust structure of the portable toilet of the present embodiment, so as to facilitate exhaust when the sewage bucket 2 is inflated or when sewage is discharged from the sewage bucket 2, so as to release the high pressure state or the negative pressure state inside the sewage bucket 2.

[0029] As shown in detail, Figures 3 to 5 The exhaust structure of the portable toilet of the present embodiment comprises an exhaust slot 21 arranged on the sewage bucket 2 and an exhaust valve 3 arranged in the exhaust slot 21.

[0030] The exhaust slot 21 communicates the inside of the sewage bucket 2 with the outside.

[0031] The exhaust valve 3 comprises a valve seat 31, a piston body 32, a piston spring 33 and a valve seat baffle 34.

[0032] The valve seat 31 is detachably installed in the exhaust slot 21, and the valve seat 31 is provided with a piston cavity 311, one end of which has an open end 312 penetrating through the inner end of the valve seat 31 and communicating with the inside of the sewage bucket 2; the other end of the piston cavity 311 has a through hole 313 in the middle part, which communicates with the outer end of the valve seat 31; the through hole 313, the piston cavity 311 and the open end 312 form an exhaust passage communicating the inside of the sewage bucket 2 with the outside.

[0033] The piston part 321 of the piston body 32 is axially movably arranged in the piston cavity 311 of the valve seat 31, and the outer end of the piston part 321 has an operating part 322 extending out of the through hole 313 of the valve seat 31, which is exposed on the surface of the sewage bucket 2; the valve seat baffle 34 is arranged at the open end 312 of the piston cavity 311, and the piston spring 33 is arranged in the piston cavity 311 and located between the piston part 321 and the valve seat baffle 34.

[0034] The operating part 322 is controlled to drive the piston part 321 to move in the piston cavity 311 to open and close the exhaust passage.

[0035] Therefore, by arranging the exhaust structure, when exhaust is needed for the sewage bucket 2, only the operating part 322 exposed on the surface of the sewage bucket 2 needs to be pressed to drive the piston part 321 of the piston body 32 to move in the piston cavity 311, so as to open the exhaust passage and communicate the inside of the sewage bucket 2 with the outside, thereby realizing exhaust operation; and as Figure 3 The exhaust valve 3 is detachably installed on the sewage bucket 2, which facilitates product assembly in the early stage, and facilitates quick replacement and maintenance operation when the components of the exhaust valve 3 are damaged in the later stage.

[0036] Refer to Figure 4 and Figure 5The inner wall of the piston cavity 311 can be divided into a sealing circumferential surface 314 close to the through hole 313 and a guide circumferential surface 315 close to the opening 312, and the inner diameter of the sealing circumferential surface 314 is smaller than that of the guide circumferential surface 315; the piston part 321 is provided with a piston sealing ring 323, and the piston part 321 is located at the sealing circumferential surface 314 to close the exhaust passage, and the piston part 321 is located at the guide circumferential surface 315 to open the exhaust passage.

[0037] The sealing circumferential surface 314 is provided, and when the piston body 32 moves outward under the elastic force of the piston spring 33 and is located at the sealing circumferential surface 314, the piston spring 33 can be tightly fitted and closely attached to the sealing circumferential surface 314, so as to effectively and reliably block the exhaust passage and ensure that the odor does not leak out.

[0038] In order to facilitate the stable movement of the piston body 32, the guide ribs 316 extending in the axial direction are circumferentially spaced on the guide circumferential surface 315 in the embodiment, and four guide ribs 316 are uniformly and circumferentially spaced in the embodiment, each guide rib 316 is connected to the sealing circumferential surface 314, and the height of the guide rib 316 protruding is flush with the sealing circumferential surface 314. Thus, when the operating part 322 of the piston body 32 is pressed to move the piston part 321 of the piston body 32 inward, each guide rib 316 can be fitted around the outer periphery of the piston sealing ring 323 of the piston part 321, so as to realize position limiting and guiding and avoid deviation and jamming of the piston body 32 during movement.

[0039] As shown in Figure 3 The outer wall of the valve seat 31 is provided with external threads 317, and the side wall of the exhaust slot 21 is provided with internal threads 211, so that the valve seat 31 can be detachably screwed into the exhaust slot 21, and the installation and disassembly are convenient and fast.

[0040] The outer wall of the valve seat 31 is further provided with a valve seat sealing ring 318 to seal the gap between the outer wall of the valve seat 31 and the inner wall of the exhaust slot 21, so as to improve the sealing effect.

[0041] As shown in Figure 4 The opening 312 of the piston cavity 311 of the valve seat 31 of the embodiment can be provided with two oppositely arranged clamping grooves 319, the outer circumferential wall of the valve seat stopper 34 protrudes two clamping blocks 341, and the two clamping blocks 341 are respectively used for rotating and clamping in the two clamping grooves 319; the valve seat stopper 34 is detachably connected, so that the piston body 32 and the piston spring 33 can be conveniently assembled; the valve seat stopper 34 can be provided with a communication hole 342 communicating with the piston cavity 311 and the inside of the sewage bucket 2.

[0042] Further, in the embodiment, the operation part 322 can include a connecting part 324 and a button 325; the connecting part 324 is protruded from the middle part of the piston part 321, a top rod groove 326 is concaved in the connecting part 324, the button 325 includes a button part 327 and a top rod 328, and the top rod 328 is connected in the top rod groove 326. The operation part 322 can be divided into the connecting part 324 which is integrated with the piston body 32 and the button 325 which is separated, and the same can facilitate the product assembling operation.

[0043] In the embodiment, the exhaust valve 3 can further include a valve cover 35 and a reset spring 36; the valve cover 35 is detachably covered outside the exhaust slot 21, the valve cover 35 is provided with an operation hole 351 corresponding to the button part 327; the button part 327 of the button 325 is movably extended out of the operation hole 351, and the inner edge of the button part 327 is radially outwardly protruded with a stop edge 329 which abuts against the inner edge of the operation hole 351; the top rod 328 of the button 325 is movably inserted into the top rod groove 326, and the reset spring 36 can be sleeved outside the top rod 328, and the two ends are respectively abutted against the inner side of the button 325 and the outer end of the valve seat 31.

[0044] Therefore, the valve cover 35 is arranged to shield and protect the exhaust valve 3 from being accidentally disassembled by the user; in actual use, the user can press the button part 327 of the button 325 through the operation hole 351, the top rod 328 of the button 325 abuts against the connecting part 324 to drive the piston part 321 to move, and the exhaust passage is realized to be conducted; after the hand is released, the piston spring 33 is reset to abut against the piston part 321 to move outward, the exhaust passage is closed, and at the same time, the reset spring 36 is also reset to drive the button 325 to move outward, so that the button part 327 can be extended and exposed in the operation hole 351.

[0045] In the embodiment, the inner wall of the exhaust slot 21 is provided with two sockets 212, the valve cover 35 is provided with two plug blocks 352 which are protruded, and when the valve cover 35 is covered outside the exhaust slot 21, the plug blocks 352 are tightly inserted into the sockets 212.

[0046] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical solution which belongs to the technical idea of the present application shall be within the protection scope of the present application. It should be noted that equivalent changes and modifications without departing from the principle of the present application shall still belong to the protection scope of the present application.

[0047] In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly understood by those skilled in the art, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" and "several" is two or more, unless otherwise expressly and specifically limited.

Claims

1. A portable toilet exhaust structure, characterized in that: comprising an exhaust slot arranged on a sewage bucket and an exhaust valve arranged in the exhaust slot; the exhaust slot is connected with the inside of the sewage bucket and the outside; the exhaust valve comprises a valve seat, a piston body, a piston spring and a valve seat stopper; the valve seat is detachably installed in the exhaust slot, the valve seat is provided with a piston cavity, one end of the piston cavity is provided with an open end penetrating through the inner end of the valve seat and connected with the inside of the sewage bucket; the other end of the piston cavity is provided with a through hole in the middle part, the through hole is connected with the outer end of the valve seat; the through hole, the piston cavity and the open end form an exhaust passage connected with the inside of the sewage bucket and the outside; the piston part of the piston body is axially movably arranged in the piston cavity of the valve seat, the outer end of the piston part of the piston body is provided with an operating part protruding from the through hole of the valve seat, the operating part is exposed on the surface of the sewage bucket; the valve seat stopper is arranged at the open end of the piston cavity, the piston spring is arranged in the piston cavity and located between the piston part and the valve seat stopper; the operating part drives the piston part to move in the piston cavity to open and close the exhaust passage. The inner wall of the piston cavity is divided into a sealing peripheral surface close to the through hole and a through peripheral surface close to the open end, the inner diameter of the sealing peripheral surface is smaller than that of the through peripheral surface; the piston part is provided with a piston sealing ring, the piston part is closed when located at the sealing peripheral surface, and the exhaust passage is opened when the piston part is located at the through peripheral surface. The through peripheral surface is provided with a plurality of axially extending guide ribs protruding in the circumferential direction, each guide rib is connected to the sealing peripheral surface, and the protruding height of the guide rib is flush with the sealing peripheral surface. The outer wall of the valve seat is provided with external threads, the side wall of the exhaust slot is provided with internal threads, the valve seat is detachably screwed into the exhaust slot; and the valve seat outer wall is further provided with a valve seat sealing ring to seal the gap between the valve seat outer wall and the exhaust slot inner wall. The open end of the valve seat piston cavity is provided with two oppositely arranged clamping grooves, the outer peripheral wall of the valve seat stopper is protruded with two clamping blocks, the two clamping blocks are respectively used for rotatingly clamping in the two clamping grooves; the valve seat stopper is provided with a through hole connected with the piston cavity and the inside of the sewage bucket. The operating part comprises a connecting part and a button; the connecting part protrudes from the middle part of the piston part, the connecting part is concave in the inner part and provided with a jack groove, the button comprises a button part and a jack, and the jack is connected in the jack groove. The exhaust valve further comprises a valve cover and a reset spring; the valve cover is detachably covered on the outside of the exhaust slot, the valve cover is provided with an operating hole corresponding to the button part; the button part of the button is movably extended out of the operating hole, and the inner edge of the button part is radially outwardly protruded with a stopper edge abutting against the inner edge of the operating hole; the jack of the button is movably inserted in the jack groove, and the reset spring is sleeved on the outer periphery of the jack, and the two ends are respectively abutted against the inner side of the button and the outer end of the valve seat.

2. The portable toilet venting structure of claim 1, wherein: The inner wall of the exhaust slot is provided with two insertion openings, the valve cover is protruded with two insertion blocks, and when the valve cover is covered on the outside of the exhaust slot, the insertion blocks are tightly inserted into the insertion openings.

3. The portable toilet venting structure of claim 2, wherein: The portable toilet exhaust structure according to any one of claims 1-8 is adopted.

4. The portable toilet venting structure of claim 1, wherein: The portable toilet exhaust structure according to any one of claims 1-8 is adopted.

5. The portable toilet venting structure of claim 1, wherein: ​ 6. The portable toilet venting structure of claim 1, wherein: ​ 7. The portable toilet venting structure of claim 6, wherein: ​ 8. The portable toilet venting structure of claim 7, wherein: ​ 9. A portable toilet sewage tank characterized by: ​ 10. A portable toilet, characterized by: ​

Images