Multifunctional water tank

Abstract

The invention relates to a multifunctional water tank which comprises a tank body, a water tank body and a water tank body, and the tank body is provided with two oppositely-arranged openings; the water passing mechanism and the ventilation mechanism are arranged at the two openings of the box body respectively, and the ventilation mechanism comprises a ventilation ring arranged at the opening of the box body; the anti-overflow ring is hermetically arranged at one end, away from the box body, of the ventilation ring; the two spill-proof pieces are oppositely arranged on the spill-proof ring, extend into the ventilation ring, are connected with each other in a sealing mode in the circumferential direction of the spill-proof ring and are made of flexible materials, so that a ventilation gap which can be pushed to be closed by liquid is formed between the two spill-proof pieces; the two ends of the ventilation gap communicate with the interior of the ventilation ring and the interior of the anti-overflow ring correspondingly. During drainage, the ventilation gap is opened, air enters the box body smoothly, internal and external air pressure is balanced, unstable water flow and flow fluctuation caused by air pressure difference are avoided, and accurate and convenient water receiving is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of water tanks, and particularly relates to a multifunctional water tank. BACKGROUND

[0002] In the field camping activities, the storage and use of water resources are very important, and the water tank becomes the key equipment to guarantee the water demand of campers. Especially the water tank mounted on the carrier, because of its special use scene, has higher requirements for its performance and function.

[0003] At present, the commonly used field camping mounted water tank is mostly simple in structure design. Generally, it is a tank body made of ordinary plastic or metal material, equipped with basic water inlet and outlet, and lacks optimization design for complex environment in the field and special use demand. In actual use, this kind of water tank exposes many problems.

[0004] The existing water tank has serious defects in drainage. When the water tank drains, due to the pressure difference between the inside and outside of the water tank, the water discharged from the water tank will interfere with the entering air. This not only makes the drainage process not smooth, and the water flow is hindered by the air and cannot flow out stably, but also causes the size of water flow to change alternately. In the field camping scene, this means that it is very difficult to get water, and the water container is difficult to accurately aim at the constantly changing drainage drop point, and cannot produce stable water flow, which brings great inconvenience to the daily water use of campers. SUMMARY

[0005] The purpose of the present application is to provide a multifunctional water tank to solve the problems in the background art.

[0006] To achieve the above technical purpose, the technical scheme adopted by the present application is as follows: A multifunctional water tank, comprising: a tank body, the tank body is provided with two oppositely arranged openings; a water passing mechanism and an air passing mechanism; the water passing mechanism and the air passing mechanism are respectively arranged at the two openings of the tank body, the water passing mechanism is used for leading in or leading out liquid, and the air passing mechanism is used for balancing the air pressure difference between the inside of the tank body and the outside environment; the air passing mechanism comprises: an air passing ring arranged at the opening of the tank body; a spill-proof ring sealingly arranged at one end of the air passing ring away from the tank body; Two anti-overflow sheets are oppositely arranged on the anti-overflow ring, and the two anti-overflow sheets extend into the interior of the air passage ring, are sealingly connected to each other along the circumferential direction of the anti-overflow ring, and are made of flexible material, so that an air passage gap that can be closed by liquid is formed between the two anti-overflow sheets, and the air passage gap is in communication with the interior of the air passage ring and the interior of the anti-overflow ring at two ends, respectively.

[0007] Optionally, the air passage mechanism further comprises a protective cover. The air passage ring is threadedly connected to the interior of the protective cover, and the protective cover is threadedly sleeved at the opening of the box. A first sealing ring is arranged on the air passage ring and abuts against the box. A plurality of air holes are formed in the protective cover, and each air hole is arranged staggeredly with the position of the air passage gap in the direction from the protective cover to the anti-overflow sheet.

[0008] Optionally, the part of the anti-overflow ring aligned with the air hole is arranged obliquely from inside to outside, so as to form a sundry collecting groove between the anti-overflow ring and the protective cover.

[0009] Optionally, a plurality of abutting blocks are arranged on the side of the protective cover facing the anti-overflow ring, and each abutting block is circumferentially distributed and abuts against the anti-overflow ring.

[0010] Optionally, the two anti-overflow sheets are arranged close to each other in the direction from the anti-overflow ring to the air passage ring.

[0011] Optionally, the water passage mechanism comprises: A first connecting ring is threadedly sleeved at the opening of the box. A second connecting ring is located in the interior of the first connecting ring, the second connecting ring is connected to the end of the first connecting ring away from the box, and the second connecting ring is located in the interior of the opening of the box. A second sealing ring is arranged between the first connecting ring and the second connecting ring, and the second sealing ring abuts against the box. A switch housing is threadedly connected in the interior of the second connecting ring. A first water guide channel is arranged in the interior of the switch housing. A water passage control board is arranged at the end of the first water guide channel away from the second connecting ring, a water passage through hole is formed in the water passage control board, and the inner diameter of the water passage through hole is smaller than the inner diameter of the first water guide channel. A second water guide channel is arranged in the interior of the second connecting ring. A sealing block is arranged on the second water guide channel, and the sealing block is matched with the water passage through hole.

[0012] Optionally, the switch housing is provided with a protrusion near one end of the second connecting ring.

[0013] Optionally, the switch housing is provided with a gripping ring away from one end of the second connecting ring, and the gripping ring is located outside the first connecting ring. The inside of the gripping ring and the outside of the first connecting ring are both provided with matching induction protrusions.

[0014] Optionally, the first water guide channel is provided with a connecting thread outside.

[0015] Optionally, a drainage head is rotatably sleeved at one end of the second water guide channel away from the sealing block, the drainage head is in communication with the second water guide channel, a drainage guide pipe is further in communication with the drainage head, and the drainage guide pipe is perpendicular to the second water guide channel.

[0016] The beneficial effects of the present application are as follows: 1. Through the unique design of the ventilation mechanism, the ventilation ring, the anti-overflow ring and the flexible anti-overflow sheet cooperate with each other. When draining water, the ventilation gap is opened, air enters the tank smoothly, the internal and external air pressures are balanced, water flow instability and flow fluctuation caused by air pressure difference are avoided, and water collection is ensured to be accurate and convenient. When the water tank shakes, the anti-overflow sheet adheres to close the ventilation gap to prevent water from overflowing. In the outdoor camping scene, it can make the user stable water collection and reduce water resource waste.

[0017] 2. The switch housing, the gripping ring and the induction protrusion of the water guide mechanism work cooperatively. The switch housing controls the water flow by thread connection, which is easy to operate. The gripping ring is convenient for grasping and applying force. When the water guide mechanism is fully opened, the induction protrusions abut against each other, the operation state is prompted through the change of resistance, excessive rotation damage to components is avoided, and the user experience is improved. For example, in actual use, the user can easily control the water flow and the switch, and the water use convenience is improved.

[0018] 3. The design of the protective cover, the sundry collecting groove and the protrusion improves the performance of the water tank. The protective cover blocks sundries from entering the ventilation system. The anti-overflow ring and the air permeation hole are aligned and inclined to form a sundry collecting groove, which traps dust and other sundries. When cleaning, the protective cover is opened, and the maintenance is convenient. The protrusion of the switch housing reduces the friction with the second connecting ring, avoids loosening, ensures the stable installation of the water guide mechanism, and prolongs the service life. In the complex environment in the wild, these designs can effectively reduce the occurrence of faults. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application can be further illustrated by the non-limiting examples shown in the accompanying drawings.

[0020] Figure 1 It is a structural schematic diagram of a multifunctional water tank. Figure 2This is a schematic cross-sectional view of a multifunctional water tank according to the present invention; Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle; Figure 4 for Figure 2 Schematic diagram of the enlarged structure at B in the middle; Figure 5 This is a schematic diagram of the explosion structure of a ventilation mechanism of a multifunctional water tank of the present invention; Figure 6 This is an exploded cross-sectional view of a ventilation mechanism of a multifunctional water tank of the present invention; Figure 7 This is a schematic diagram of the exploded structure of a water-passing mechanism of a multifunctional water tank of the present invention; Figure 8 This is an exploded cross-sectional view of a water-passing mechanism of a multifunctional water tank of the present invention; The main component symbols are described as follows: Box body 1, water flow mechanism 2, first connecting ring 201, second connecting ring 202, second sealing ring 203, switch housing 204, first water guide channel 205, water flow control plate 206, second water guide channel 207, sealing block 208, protrusion 209, holding ring 210, sensing protrusion 211, connecting thread 212, drainage head 213, drainage guide pipe 214, ventilation mechanism 3, ventilation ring 301, anti-overflow ring 302, anti-overflow sheet 303, first sealing ring 304, protective cover 305, air vent 306, abutment block 307. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-8 As shown, the box body 1 has two openings arranged opposite to each other; Water supply mechanism 2 and ventilation mechanism 3; The water-passing mechanism 2 and the ventilation mechanism 3 are respectively arranged at the two openings of the box body 1. The water-passing mechanism 2 is used to introduce or export liquid, and the ventilation mechanism 3 is used to balance the air pressure difference between the inside of the box body 1 and the external environment. The ventilation mechanism 3 includes: A vent ring 301 is provided at the opening of the box body 1; The anti-overflow ring 302 is sealed and arranged at the end of the vent ring 301 away from the box body 1; Two anti-overflow sheets 303 are oppositely arranged on the anti-overflow ring 302, and extend into the interior of the air vent ring 301. The two anti-overflow sheets 303 are sealingly connected to each other along the circumferential direction of the anti-overflow ring 302, and the anti-overflow sheet 303 is made of flexible material, so that a ventilation gap that can be closed by liquid is formed between the two anti-overflow sheets 303, and the ventilation gap is in communication with the interior of the air vent ring 301 and the interior of the anti-overflow ring 302 at two ends, respectively.

[0023] The box body 1 is the main structure of the entire water tank, and two oppositely arranged openings formed in the box body 1 are the key to connecting the water passing mechanism 2 and the air vent mechanism 3. The two openings provide a channel for the introduction and discharge of liquid and the balance of air pressure, and are the basic carrier for the water tank to realize various functions.

[0024] As shown in Figures 1-2 , specifically, a mounting opening is formed in the center of the box body 1, so that the box body 1 can be mounted on the outside of the vehicle or the luggage rack, realizing the requirement of convenient carrying of the water tank. When the entire water tank is normally placed, one of the two oppositely arranged openings in the box body 1 is above and the other is below in the direction of gravity. The upper opening is used for mounting the air vent mechanism 3, and needs to be tightly connected with the air vent mechanism and have good sealing performance to prevent water leakage and air leakage. The lower opening is used for mounting the water passing mechanism 2, and needs to be able to withstand a certain water pressure and be stably connected with the water passing mechanism to ensure smooth water flow. This arrangement conforms to the natural law of water flow and air pressure. The air vent mechanism 3 above balances the air pressure, which can make the water passing mechanism 2 below discharge water more smoothly and avoid poor water discharge caused by air pressure difference. For example, when the water tank is used for camping in the wild, water can be discharged from the lower opening and air can be vented from the upper opening, so that water can be stably discharged and the camper can conveniently use the water.

[0025] As shown in Figures 1-2 , further, the two openings in the box body 1 can be diagonally arranged. Diagonal arrangement of the openings has obvious advantages in water discharge. Due to the difference in opening position, water in the box body can be more completely discharged, reducing residual water. Moreover, when the box body is no longer mounted and placed on the ground, the water passing mechanism 2 will not be pressed, prolonging the service life of the water passing mechanism.

[0026] The water passing mechanism 2 is arranged at one opening of the box body 1, and mainly functions to realize the introduction and discharge of liquid. By being connected with an external water source or water using equipment, the water passing mechanism 2 controls the flow of liquid by using its own structure. When discharging water, the internal structure (such as the sealing block 208 leaving the water passing through hole) enables liquid to flow out smoothly; when storing water, the water passing mechanism 2 ensures good sealing performance to prevent liquid leakage. The working principle of the water passing mechanism 2 is based on the principle of communicating vessels and sealing control, ensuring that liquid enters and exits the water tank as required.

[0027] The vent ring 301 is arranged at the opening of the box body 1, is the basic frame of the vent mechanism 3, provides a mounting position for other components, and simultaneously serves as an air inlet and outlet channel to ensure the balance of air pressure inside and outside the box body 1. The anti-overflow ring 302 is sealingly arranged at the end of the vent ring 301 away from the box body 1, and functions to prevent liquid from overflowing. When the water inside the water tank is agitated, the anti-overflow ring 302 can prevent the water from directly flowing out of the vent, thereby enhancing the sealing and safety of the water tank.

[0028] The two anti-overflow sheets 303 arranged opposite to each other on the anti-overflow ring 302 and extending into the interior of the vent ring 301 are core components of the vent mechanism 3. Since they are made of flexible material, when the water inside the water tank is agitated, they will be close to each other under the action of the impact force, so as to close the vent gap and prevent water from overflowing. When the water tank is stationary for water drainage or water taking, the vent gap is opened to ensure that air can smoothly enter or exit, balance the air pressure inside and outside the box body 1, and ensure smooth water drainage. This design utilizes the deformability of flexible materials and the principle of air pressure balance, effectively solving the problems of water overflow and air pressure during the movement and use of the water tank.

[0029] The box body 1, the water passage mechanism 2, and the vent mechanism 3 work together to enable the water tank to have good water storage, water drainage, and water overflow prevention functions. The water passage mechanism 2 enables controllable flow of liquid, meeting the water demand of campers in different scenarios; the vent mechanism 3 ensures the balance of air pressure inside and outside the box body 1 while effectively preventing water from overflowing during the movement of the water tank, thereby improving the practicality and reliability of the water tank and providing a stable water resource storage and taking solution for field camping.

[0030] Further, the vent mechanism 3 further comprises a protective cover 305; The vent ring 301 is threadedly connected to the interior of the protective cover 305, and the protective cover 305 is threadedly sleeved at the opening of the box body 1; The vent ring 301 is provided with a first sealing ring 304, and the first sealing ring 304 abuts against the box body 1; The protective cover 305 is provided with a plurality of air holes 306, and each air hole 306 is arranged staggered with the position of the vent gap in the direction from the protective cover 305 to the anti-overflow sheet 303.

[0031] The protective cover 305 is connected with the venting ring 301 through internal threads, providing a stable mounting structure for the venting ring 301, so that the venting ring 301 can be stably arranged at the opening of the tank 1; at the same time, the internal threaded sleeve can also be sleeved at the opening of the tank 1, fixing the entire venting mechanism 3 on the tank 1, ensuring that the venting mechanism will not easily loosen or fall off during use of the water tank. And the protective cover 305 can prevent foreign matter from directly entering the venting ring 301 and the venting gap, avoiding the influence of clogging on the venting effect. In the outdoor camping environment, there are a lot of dust, leaves and other sundries, and the protective cover 305 can effectively block these sundries, ensuring the normal operation of the venting system.

[0032] The first sealing ring 304 is arranged on the venting ring 301 and abuts against the tank 1, mainly playing a sealing role. It fills the gap between the venting ring 301 and the tank 1, preventing water in the water tank from leaking out from the connection between the venting ring 301 and the tank 1, and also avoiding the direct entry of external air into the water tank through the venting gap, ensuring the sealing performance of the venting mechanism 3 and maintaining the stability of the air pressure inside the water tank.

[0033] The venting hole 306 is arranged on the protective cover 305 and staggered with the position of the venting gap. When the air pressure inside and outside the water tank is unbalanced, air can enter or exit through the venting hole 306. Because it is staggered with the position of the venting gap, it can further block sundries from entering the venting gap, and to some extent, it can buffer the entry and exit of air, avoiding the impact on the anti-overflow sheet 303 caused by too fast air flow, affecting the anti-overflow effect. For example, when the water tank is rapidly drained, the venting hole 306 can smoothly supplement air, ensuring the smooth progress of the drainage process, and will not interfere with the normal work of the anti-overflow sheet 303.

[0034] Further, the part of the anti-overflow ring 302 aligned with the venting hole 306 is arranged from inside to outside, so as to form a sundry collection groove between the anti-overflow ring 302 and the protective cover 305.

[0035] The part of the anti-overflow ring 302 aligned with the venting hole 306 is arranged from inside to outside (i.e. away from the direction of the middle venting gap), forming a sundry collection groove between the anti-overflow ring 302 and the protective cover 305. In the complex environment of outdoor camping, dust, sand, leaves and other sundries will inevitably enter the venting mechanism through the venting hole 306. After entering, these sundries will slide down the inclined anti-overflow ring 302 to the collection groove. For example, in a dusty outdoor environment, even with the protective cover 305, fine dust will still enter through the venting hole 306, and the sundry collection groove can collect these dust, preventing it from continuing to enter the venting ring 301 and the venting gap, effectively reducing the influence of sundries on the venting function.

[0036] When the water tank needs to be cleaned, the debris collection groove also makes the cleaning work more convenient. Users only need to open the protective cover 305 to easily clean the debris in the collection groove, without the need for complex disassembly and cleaning operations on the ventilation mechanism, reducing maintenance costs and difficulty.

[0037] Further, the side of the protective cover 305 facing the anti-overflow ring 302 is provided with a plurality of abutting blocks 307, and each abutting block 307 is circumferentially distributed and abuts against the anti-overflow ring 302.

[0038] The plurality of circumferentially distributed abutting blocks 307 provided on the side of the protective cover 305 facing the anti-overflow ring 302 abut against the anti-overflow ring 302, serving as support and positioning. During the driving of the water tank mounted on the vehicle, it will be affected by external forces such as jolting and vibration. The abutting blocks 307 can prevent the anti-overflow ring 302 from shaking or shifting within the ventilation ring 301, ensuring the relative position of the components of the ventilation mechanism stable, maintaining the normal ventilation and anti-overflow function. For example, when driving on a rugged mountain road, the vibration of the vehicle is large, and the abutting blocks 307 can effectively reduce the shaking of the anti-overflow ring 302, ensure the normal operation of the ventilation gap, and prevent water from overflowing.

[0039] During installation of the ventilation mechanism, the abutting blocks 307 can serve as a reference point for installation and calibration. The installer can quickly and accurately install the protective cover 305 to the appropriate position by observing the abutting condition of the abutting blocks 307 and the anti-overflow ring 302, improving installation efficiency and accuracy. At the same time, during subsequent maintenance or inspection, the state of the abutting blocks 307 can also be used as a reference index to judge whether the ventilation mechanism is normal. If the abutting blocks 307 are damaged or shifted, it may mean that there is a problem with the ventilation mechanism, which needs to be handled in a timely manner.

[0040] Further, the two anti-overflow sheets 303 are arranged close to each other along the direction from the anti-overflow ring 302 to the ventilation ring 301.

[0041] The anti-overflow sheets 303 arranged close to each other can more quickly and effectively close the air gap when the water in the water tank shakes. When the water tank shakes due to movement of the carrier, the water impacts the anti-overflow sheets 303, and since the two are close to each other, they can quickly adhere to each other to block the path of the water flowing out of the air gap. When the water shakes, the direction of the water that can overflow is along the direction from the air ring 301 to the anti-overflow ring 302, and the anti-overflow sheets 303 arranged close to each other are in an inclined state, and the inclined surface faces the impact direction of the water that can overflow, so that the anti-overflow sheets 303 can be better impacted by the water in this direction and can be more effectively impacted. Compared with the case of parallel arrangement or far distance, this design greatly improves the timeliness and reliability of anti-overflow, can better prevent the water in the water tank from overflowing during movement, avoid water resource waste and equipment damage, environmental moisture and other problems caused by water overflow, and is particularly suitable for use scenarios where the water tank is often in a moving state during outdoor camping.

[0042] Further, the water passing mechanism 2 comprises: The first connecting ring 201 is threadedly sleeved at the opening of the tank body 1. The first connecting ring 201 is threadedly sleeved at the opening of the tank body 1 to fix the water passing mechanism 2, and is a basic component for connecting the entire water passing mechanism to the tank body, which ensures stable installation of the water passing mechanism and prevents it from falling off easily during use of the water tank.

[0043] The second connecting ring 202 is located inside the first connecting ring 201, and the second connecting ring 202 is connected to the end of the first connecting ring 201 away from the tank body 1, and the second connecting ring 202 is located inside the opening of the tank body 1. The second connecting ring 202 is located inside the first connecting ring 201, connected to the end of the first connecting ring 201 away from the tank body 1, and located inside the opening of the tank body 1. It further refines the installation and positioning of the water passing mechanism at the opening of the tank body, and provides support for the installation of subsequent components.

[0044] The second sealing ring 203 is arranged between the first connecting ring 201 and the second connecting ring 202, and abuts against the tank body 1. It can effectively fill the gap at the connection site, prevent water from leaking from the connection between the water passing mechanism and the tank body 1, and ensure the sealing of the water tank.

[0045] The switch housing 204 is threadedly connected inside the second connecting ring 202. The first water guide channel 205 is arranged inside the switch housing 204. The water passing control panel 206 is arranged at the end of the first water guide channel 205 away from the second connecting ring 202. The water passing through hole is arranged on the water passing control panel 206, and the inner diameter of the water passing through hole is smaller than the inner diameter of the first water guide channel 205. The second water guide channel 207 is arranged inside the second connecting ring 202. The sealing block 208 is arranged on the second water guide channel 207, and the sealing block 208 matches the water passing through hole.

[0046] The switch housing 204 is an operating component, which is axially moved by screw transmission principle when rotating by being screwed with the second connecting ring 202. The water passing control plate 206 and related components are driven to move, thereby playing a role of controlling water flow and adjusting water flow size. For example, rotating the switch housing 204 can make the sealing block 208 away from or close to the water passing through hole, thereby realizing water passing or water cutting.

[0047] The first water guide passage 205 is a main passage for water flow. Based on fluid mechanics principle, water in the water tank flows into the first water guide passage 205 from the second water guide passage 207 under the action of pressure difference (atmospheric pressure difference between inside and outside of the water tank, water level difference, etc.), and flows out of the water tank, thereby providing a passage for water use.

[0048] The second water guide passage 207 assists in guiding water in the water tank into the switch housing 204. According to fluid guiding principle, water is guided from the opening of the tank body 1 to the entrance of the first water guide passage 205, thereby cooperating with the first water guide passage 207 to ensure smooth transmission of water flow.

[0049] The water passing through hole on the water passing control plate 206 is a key part for controlling water flow. By cooperating with the sealing block 208, mechanical blocking principle is used, when the sealing block 208 is away from the water passing through hole, water can flow out through the hole; when the sealing block 208 blocks the hole, water flow is prevented, thereby realizing precise control of water flow.

[0050] The sealing block 208 realizes water flow blocking based on mechanical sealing principle by closely fitting with the water passing through hole. Under the driving of the switch housing 204, the sealing block 208 and the water passing through hole move relatively, the sealing block 208 can be moved to the water passing through hole, and blocks the hole by relying on its elasticity and matching degree with the hole, thereby preventing water from flowing out; when water passing is needed, the sealing block 208 is moved away to make water flow.

[0051] Specifically, when taking water, the switch housing 204 is rotated. Since the switch housing 204 is screwed with the second connecting ring 202, axial movement is generated when rotating. With the movement of the switch housing 204, the water passing control plate 206 is moved. The sealing block 208 gradually moves away from the water passing through hole on the water passing control plate 206. At this time, water in the water tank flows into the first water guide passage 205 from the second water guide passage 207 under the action of pressure difference (atmospheric pressure difference between inside and outside of the water tank, water level difference, etc.), and flows out of the water tank through the water passing through hole, thereby realizing the function of opening water flow.

[0052] When sealing, the switch housing 204 is reversely rotated, and axial movement is generated in the opposite direction by screw transmission. The sealing block 208 gradually approaches the water passing through hole with the movement of the switch housing 204. When the sealing block 208 closely fits and enters the water passing through hole, the water flow channel is completely blocked, water in the water tank cannot flow out through the water passing mechanism 2, thereby realizing the function of closing water flow.

[0053] Further, the switch shell 204 is provided with a protrusion 209 near one end close to the second connecting ring 202.

[0054] When assembling the water passing mechanism 2 or rotating the switch shell 204 to control water flow, if the switch shell 204 and the second connecting ring 202 are in complete abutment and the switch shell 204 is rotated, the friction between them is large, and this friction will be transmitted to the second connecting ring 202, thereby driving the second connecting ring 202 to rotate, causing the connection between the second connecting ring 202 and the tank body 1 to loosen, and damaging the sealing performance of the water tank. The protrusion 209 is provided at one end of the switch shell 204 close to the second connecting ring 202, which reduces the contact area between the switch shell 204 and the second connecting ring 202, and according to the relationship between friction and contact area, the reduction of contact area leads to the reduction of friction. In this way, when the switch shell 204 is rotated, the possibility of the second connecting ring 202 rotating and loosening due to the friction generated by abutting rotation is greatly reduced. In actual operation, whether it is the initial assembly of the water passing mechanism or the subsequent rotation of the switch shell 204 to switch water, the protrusion 209 can effectively play a role in ensuring the stability of the connection between the second connecting ring 202 and the tank body 1, maintaining the normal sealing performance of the water tank, and ensuring the stable and reliable operation of the water passing mechanism.

[0055] Further, the switch shell 204 is provided with a protrusion 209 near one end close to the second connecting ring 202. The inner side of the holding ring 210 and the outer side of the first connecting ring 201 are both provided with matching induction protrusions 211.

[0056] The holding ring 210 is provided at one end of the switch shell 204 away from the second connecting ring 202 and located outside the first connecting ring 201, which serves as a component for direct hand gripping operation, greatly improving the convenience of operation. It allows users to exert force more easily and comfortably when rotating the switch to control water flow, avoiding the difficulty of operation caused by difficulty in gripping, especially when camping in the wild, when the hands may be greasy or in a wet state, the holding ring 210 provides a better gripping experience and enhances the stability of the operation.

[0057] The induction bumps 211 are respectively arranged on the inner side of the gripping ring 210 and the outer side of the first connecting ring 201, and are matched with each other. When the water passing mechanism is in a closed state, the two induction bumps 211 are staggered, and in this state, the gripping ring 210 rotates smoothly and is not subject to additional resistance, facilitating the operator to open the water flow. When the gripping ring 210 is rotated to a state in which the water passing mechanism is completely opened, the two induction bumps 211 abut against each other. At this time, the resistance of the gripping ring 210 rotating is obviously increased, and this change in resistance is an intuitive indication to the operator, indicating that the water passing mechanism has been completely opened and does not need to be rotated any further. This design utilizes the principle of resistance change feedback in mechanical structures, avoids the operator from over-rotating due to being unable to judge the switch state, thereby possibly damaging the water passing mechanism, and also improves the operation efficiency, enabling the user to more accurately control the water flow switch and optimizing the user experience.

[0058] Further, the first water guide channel 205 is provided with a connecting thread 212 on the outer side. The connecting thread 212 provides a mechanical connection interface for the water tank and an external water pipe (such as a rubber pipe, a PVC pipe, etc.) through a standard thread structure, so that the water flow can be smoothly delivered from the first water guide channel 205 to a target position (such as a water faucet, a shower, etc. in a camping site). This realizes reliable butt joint of the water tank and the external water pipe, and provides conditions for flexible application of the multifunctional water tank in complex environments.

[0059] Further, the connecting threads of the first connecting ring 201 and the tank 1, the connecting threads of the second connecting ring 202 and the switch housing 204, and the connecting thread 212 on the outer side of the first water guide channel 205 have consistent thread directions (all clockwise or all counterclockwise). Through our setting structure, a threaded connection strength grading design is realized, specifically as follows: The connecting thread 212 has the smallest diameter among the three, and according to the principle of threaded connection, the smaller the diameter, the smaller the contact area, resulting in the weakest connection strength (i.e., the smallest rotation torque required for disassembly). This design makes the connection between the external water pipe (such as a rubber pipe, a PVC pipe, etc.) and the first water guide channel 205 the “easiest to disassemble” link in the entire water passing mechanism.

[0060] The second connecting ring 202 and the switch housing 204: by arranging a bump 209 on the end of the switch housing 204 close to the second connecting ring 202 (and the second connecting ring 202 is inside the first connecting ring 201, and its diameter is also smaller than that of the first connecting ring 201), the direct contact area and abutting area of the two are reduced, thereby reducing the friction when rotating. This makes the rotation torque required for disassembling the switch housing 204 smaller than the connection strength of the first connecting ring 201 and the tank 1 (i.e., the former is easier to disassemble).

[0061] The first connecting ring 201 is fixedly connected with the box body 1 as the basis of the water passing mechanism, has the largest threaded diameter, the largest contact area, the highest connection strength, and when the first connecting ring 201 is rotated, the friction force between the opening of the box body 1 and the second sealing ring 203 needs to be overcome, thereby ensuring the stable installation of the box body 1 and the water passing mechanism.

[0062] The specific operation logic and the anti-misoperation mechanism are as follows: Scenario one: disassembling the external water pipe; when the external water pipe connected with the connecting thread 212 needs to be disassembled, since the connection strength is the weakest, rotating the water pipe only causes the connecting thread 212 to separate from the external water pipe, and the switch shell 204 is not rotated synchronously. This avoids loosening of the switch shell 204 due to misoperation, thereby damaging the sealing fit between the water passing control panel 206 and the sealing block 208.

[0063] Scenario two: operating the switch shell; when the switch shell 204 is rotated to control water flow, the protrusion 209 reduces the friction between the second connecting ring 202 by reducing the contact area. At this time, the rotation torque only acts on the relative movement of the sealing block 208 inside the switch shell 204 and the water passing through hole (to realize on-off control), and is not transmitted to the first connecting ring 201, thereby avoiding loosening of the threaded connection between the first connecting ring 201 and the box body 1 due to excessive force, and causing a water leakage risk.

[0064] Technical effects The design constructs a clear operation logic through "unification of thread direction" and "resistance grading": Priority order: disassembly of the external water pipe → operation of the switch shell → disassembly of the basic connection, to ensure that the components do not interfere with each other during maintenance or use.

[0065] Reliability improvement: avoids the problem of structural loosening caused by transmission of operation torque, especially in scenarios such as outdoor camping where the water pipe needs to be frequently plugged in and out or the switch needs to be frequently rotated, significantly reducing the risk of water leakage and improving the durability and safety of the water tank.

[0066] Further, the second water guide channel 207 has a drainage head 213 rotatably sleeved at one end away from the sealing block 208, the drainage head 213 is in communication with the second water guide channel 207, and the drainage head 213 further has a drainage guide pipe 214 in communication therewith, and the drainage guide pipe 214 is perpendicular to the second water guide channel 207.

[0067] The drainage head 213 is rotatably sleeved on the second water guide channel 207 away from the sealing block 208. This rotatable connection allows the drainage head 213 to adjust the angle flexibly. When the opening of the box body 1 is arranged diagonally, the water tank is placed in different positions, or the center of gravity changes due to the shaking of the water in the water tank during the drainage process. The drainage head 213 can rotate accordingly and always maintain good contact with the remaining water in the tank. For example, when camping in the wild, the water tank may be placed on uneven ground. The rotatable drainage head 213 can adapt to this inclination angle to ensure that the second water guide channel 207 connected thereto can extend into the remaining water, avoiding the problem that part of the water cannot be drained due to the angle.

[0068] Specifically, the drainage guide pipe 214 is perpendicular to the second water guide channel 207 and communicates with the drainage head 213, which provides more specific directional guidance for drainage. During drainage, since the drainage head 213 can rotate, and the drainage guide pipe 214 is connected with the drainage head 213, the center of gravity of the drainage head 213 is biased toward the drainage guide pipe 214. Therefore, the rotation of the drainage head 213 will make the drainage guide pipe 214 always below the direction of gravity, and the water will also be in this direction, thereby ensuring that the drainage guide pipe 214 is in the remaining water.

[0069] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical idea of the present application should be covered by the claims of the present application.

Claims

1. A multifunctional water tank, characterized in that: include: A box body, wherein the box body is provided with two openings arranged opposite to each other; Water supply mechanism and ventilation mechanism; The water-passing mechanism and the ventilation mechanism are respectively arranged at the two openings of the box body, the water-passing mechanism is used to introduce or export liquid, and the ventilation mechanism is used to balance the air pressure difference between the inside of the box body and the external environment; The ventilation mechanism comprises: a vent ring, arranged at the opening of the box; An anti-overflow ring, sealingly arranged at one end of the vent ring away from the box body; Two anti-overflow sheets are arranged opposite to each other on the anti-overflow ring, and the two anti-overflow sheets extend into the interior of the ventilation ring. The two anti-overflow sheets are sealed and connected to each other along the circumferential direction of the anti-overflow ring, and the anti-overflow sheets are made of flexible material so that a ventilation gap that can be pushed closed by liquid is formed between the two anti-overflow sheets, and the two ends of the ventilation gap are respectively connected to the interior of the ventilation ring and the interior of the anti-overflow ring.

2. The multifunctional water tank according to claim 1, characterized in that: The ventilation mechanism further includes a protective cover; The vent ring is threadedly connected to the inside of the protective cover, and the protective cover is threadedly sleeved on the opening of the box body; The ventilation ring is provided with a first sealing ring, and the first sealing ring abuts against the box body; The protective cover is provided with a plurality of ventilation holes, and each of the ventilation holes is staggered with the position of the ventilation gap in the direction from the protective cover to the anti-overflow sheet.

3. The multifunctional water tank according to claim 2, characterized in that: The portion of the anti-overflow ring aligned with the air vent is tilted from inside to outside, so that a debris collection groove is formed between the anti-overflow ring and the protective cover.

4. The multifunctional water tank according to claim 2, characterized in that: A plurality of abutment blocks are provided on one side of the protection cover facing the anti-overflow ring, and each of the abutment blocks is distributed in a circumference and abuts against the anti-overflow ring.

5. The multifunctional water tank according to claim 1, characterized in that: The two anti-overflow sheets are arranged close to each other along the direction from the anti-overflow ring to the vent ring.

6. The multifunctional water tank according to claim 1, characterized in that: The water supply mechanism comprises: a first connecting ring, threadedly sleeved on the opening of the box body; a second connecting ring, located inside the first connecting ring, connected to an end of the first connecting ring away from the box, and located inside the opening of the box; a second sealing ring, disposed between the first connecting ring and the second connecting ring, and the second sealing ring abuts against the box body; a switch housing, threadedly connected to an interior of the second connecting ring; a first water-conducting channel, passing through the interior of the switch housing; a water flow control plate, disposed on an end of the first water channel away from the second connecting ring, the water flow control plate being provided with a water flow hole, wherein the inner diameter of the water flow hole is smaller than the inner diameter of the first water channel; a second water guide channel, passing through the interior of the second connecting ring; A sealing block is provided on the second water-conducting channel, and the sealing block matches the water-through hole.

7. The multifunctional water tank according to claim 6, characterized in that: A protrusion is provided on one end of the switch housing close to the second connecting ring.

8. The multifunctional water tank according to claim 6, characterized in that: A grip ring is provided at one end of the switch housing away from the second connecting ring, and the grip ring is located outside the first connecting ring; The inner side of the grip ring and the outer side of the first connecting ring are both provided with sensing protrusions that match each other.

9. The multifunctional water tank according to claim 6, characterized in that: A connecting thread is provided on the outer side of the first water guiding channel.

10. The multifunctional water tank according to claim 6, characterized in that: A drainage head is rotatably sleeved on one end of the second water guide channel away from the sealing block. The drainage head is connected to the second water guide channel. The drainage head is also connected to a drainage guide pipe, and the drainage guide pipe and the second water guide channel are perpendicular to each other.

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