Cleaning device for closestool water tank

Abstract

A cleaning device for a closestool water tank comprises a bottle body and a buoyancy plug. A containing cavity used for containing cleaning agents is formed in the bottle body, a flow guide hole and an air pressure hole are formed in the side wall of the containing cavity, and the air pressure hole is located above the flow guide hole. The buoyancy plug is mounted at the air pressure hole and can open or close the air pressure hole along with floating of the liquid level; when the liquid level of the water tank descends and is lower than the buoyancy plug, the buoyancy plug moves downwards under the influence of gravity to open the air pressure hole so as to maintain air pressure balance inside and outside the containing cavity, and liquid exchange can be conducted between the containing cavity and the water tank. When the liquid level of the water tank rises and is aligned with the buoyancy plug, the buoyancy plug moves upwards to close the air pressure hole to prevent the mixed liquid from passing through the air pressure hole; therefore, by means of the design, the opening and closing time of the air pressure hole can be controlled to block discharging and diffusion of the mixed liquid, and the problems that the cleaning agent is dissolved too fast and released too much are solved.

Description

Technical Field

[0001] The utility model belongs to the field of toilet supplies, in particular to a cleaning device for a toilet water tank. Background Art

[0002] A flush toilet includes a water tank and a toilet body. The toilet body will produce stains and emit odors after use, and manual cleaning is rather troublesome. For this reason, corresponding water tank cleaning devices have appeared on the market.

[0003] For example, the patent with application number 2016211123762 mentions a toilet tank detergent slow-release device, which includes a shell and a cover body installed on the upper end of the shell, the shell is provided with a accommodating chamber for filling the detergent, the side wall of the accommodating chamber is provided with a guide hole, and the cover body is provided with an air pressure hole for maintaining air pressure balance; during the drainage and filling process of the water tank, water can normally enter and exit the accommodating chamber through the guide hole to contact the detergent to form a mixed liquid, and bring the mixed liquid into the water tank, and when the water tank is drained to flush the toilet body, the mixed liquid will be discharged to the toilet body for flushing, so as to effectively eliminate stains and odors.

[0004] However, since the air pressure hole always remains open, during actual use, the mixed liquid in the containing chamber will be discharged and diffused into the water tank through the air pressure hole, causing the detergent to dissolve too quickly and release too much, resulting in the user needing to frequently replace the detergent. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model provides a cleaning device for a toilet water tank, which can control the opening and closing timing of an air pressure hole to block the discharge and diffusion of a mixed liquid, thereby solving the problem of too fast dissolution and excessive release of a cleaning agent.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A cleaning device for a toilet tank comprises a bottle body and a buoyancy plug; a containing chamber for placing a cleaning agent is provided inside the bottle body, a flow guide hole and an air pressure hole connected to the outside are provided on the side wall of the containing chamber, and the air pressure hole is located above the flow guide hole; the buoyancy plug can be movably installed at the air pressure hole, and the buoyancy plug can open or close the air pressure hole by floating with the liquid surface.

[0010] Preferably, the bottle body comprises a bottle body and a bottle cap which are detachable from each other, and the bottle body and the bottle cap enclose the accommodating cavity; the guide hole is arranged on the bottle body or the bottle cap, and the air pressure hole is arranged on the bottle cap.

[0011] Preferably, the interior of the bottle body is open upward, and an insert block is provided at the opening of the bottle body, and a first sealing ring is provided on the insert block; the interior of the bottle cap is open downward, and a second sealing ring is provided at the opening of the bottle cap; the insert block can be inserted into the opening of the bottle cap so that the first sealing ring is placed above the second sealing ring and buckled with the second sealing ring.

[0012] Preferably, the bottom surface of the bottle body is designed to be concave.

[0013] Preferably, the buoyancy plug includes a sliding column, a floating ball and a bottom plug, the sliding column can be slidably installed in the air pressure hole, and there is a gap between the sliding column and the air pressure hole for gas to pass through; the floating ball is installed on the top of the sliding column and placed in the outside world, and the bottom plug is installed at the bottom of the sliding column and placed in the accommodating cavity; wherein, when the floating ball floats up under the action of buoyancy, it drives the sliding column to move up so that the bottom plug blocks the air pressure hole; when the floating ball falls under the action of gravity, it drives the sliding column to move down so that the bottom plug opens the air pressure hole, and at this time the accommodating cavity is connected to the outside world through the gap between the sliding column and the air pressure hole.

[0014] Preferably, a spacer is further provided on the float, and when the float falls, the spacer abuts against the bottle body and forms an air path, and the air path connects the gap between the sliding column and the air pressure hole.

[0015] Preferably, the spacers are provided in plurality and arranged in a circumferential array at the bottom of the float, and the air path is formed between two of the spacers.

[0016] Preferably, the spacer is designed in a cross shape.

[0017] Preferably, the contact surface between the bottle body and the spacer is a plane; the bottle body is further provided with a blocking block on the contact surface with the spacer, the blocking block is annular in design and the inner surface thereof is inclined downward toward the spacer.

[0018] Preferably, the slide column, the float ball and the bottom plug are integrally formed and are all made of EVA material; the bottom plug is hemispherical in design, and the diameter of the bottom plug is greater than the diameter of the air pressure hole.

[0019] Preferably, a connecting block with a rope hole is provided on the top of the buoyancy plug, and a rope hole for installing a hanging rope is provided on the connecting block.

[0020] (III) Beneficial effects

[0021] The utility model provides a cleaning device for a toilet water tank. A receiving chamber is designed in a bottle body for placing a cleaning agent, and an air pressure hole is designed on the side wall of the receiving chamber to ensure the air pressure balance inside and outside the bottle body, so that the water in the water tank and the receiving chamber can flow smoothly through the guide hole. The buoyancy plug is designed to open and close the air pressure hole under specific circumstances. On the one hand, it can prevent the mixed liquid in the receiving chamber from being discharged into the water tank through the air pressure hole during the water storage process in the water tank, thereby reducing the release amount of the mixed liquid. On the other hand, it can prevent the receiving chamber from continuously exchanging liquid with the water tank through the air pressure hole in the subsequent process, thereby reducing the dissolution rate of the cleaning agent. Therefore, the above design uses the buoyancy plug to adapt to the liquid level of the water tank, thereby controlling the opening and closing timing of the air pressure hole to block the discharge and diffusion of the mixed liquid, thereby solving the problem of too fast dissolution and excessive release of the cleaning agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 The overall structure of the utility model is shown Figure 1 ;

[0024] Figure 2 Shows Figure 1 The main view;

[0025] Figure 3 Shows Figure 2 Sectional view AA;

[0026] Figure 4 Shows Figure 3 The enlarged view of point A in the middle;

[0027] Figure 5 Shows Figure 3 The enlarged view of point B in the middle;

[0028] Figure 6 The exploded schematic diagram of the overall structure of the utility model is shown;

[0029] Figure 7 A partial structural schematic diagram of the utility model is shown;

[0030] Figure 8 Shows Figure 7 BB of the cross-sectional view;

[0031] Fig. 9 The structure diagram of the bottle body of the utility model is shown;

[0032] Fig.10 The structure diagram of the buoyancy plug of the utility model is shown;

[0033] Fig.11 The working principle of the utility model is shown Figure 1 ;

[0034] Fig.12 The working principle of the utility model is shown Figure 2 .

[0035] In the figure: 1 bottle body, 10 accommodating cavity, 101 guide hole, 102 air pressure hole, 11 bottle body, 111 plug, 110 first sealing ring, 12 bottle cap, 120 second sealing ring, 13 blocking block, 2 buoyancy plug, 21 floating ball, 210 air path, 211 spacer, 22 sliding column, 23 bottom plug, 24 connecting block, 240 rope hole. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model. It is understandable that the drawings are only provided for reference and illustration, and are not used to limit the utility model. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0037] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms used in this document in the specification of the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model.

[0038] See attached Figure 1 -Attached Figure 6 and attached Fig.11 -Attached Fig.12A cleaning device for a toilet tank comprises a bottle body 1 and a buoyancy plug 2; a receiving chamber 10 for placing a cleaning agent is provided inside the bottle body 1, a flow guide hole 101 and an air pressure hole 102 connected to the outside are provided on the side wall of the receiving chamber 10, and the air pressure hole 102 is located above the flow guide hole 101; the buoyancy plug 2 can be movably installed at the air pressure hole 102, and can open or close the air pressure hole 102 by floating with the liquid surface.

[0039] Specifically, when placing the bottle body 1 in a water tank (not shown in the figure), since the air pressure hole 102 is in an open state, under the action of air pressure, the liquid level in the water tank will be consistent with the liquid level in the containing chamber 10, so the water in the water tank will enter the containing chamber 10 through the guide hole 101 and contact the detergent to form a mixed liquid; as the liquid level in the water tank gradually approaches the air pressure hole 102, the mixed liquid in the containing chamber 10 will gradually move upward under the action of air pressure, and at the moment when the liquid level in the water tank is higher than the air pressure hole 102, under the action of buoyancy, the buoyancy plug 2 will move up and instantly close the air pressure hole 102 to prevent the upward mixed liquid from being discharged into the water tank through the air pressure hole 102, thereby reducing the release amount of the mixed liquid; at the same time, since the air pressure hole 102 is blocked, the mixed liquid in the containing chamber 10 can only overflow into the water tank through the guide hole 101 for liquid exchange, thereby reducing the release speed of the mixed liquid.

[0040] During the process of the water containing the mixed liquid in the water tank being pumped out to the outside to flush the toilet body (not shown in the figure), the liquid level in the water tank will gradually drop until the liquid level in the water tank is lower than the air pressure hole 102 and is located above the diversion hole 101. The buoyancy plug 2 moves downward under the influence of gravity and opens the air pressure hole 102 to maintain the air pressure balance inside and outside the accommodating chamber 10; and under the action of air pressure, the liquid level height of the accommodating chamber 10 and the water tank will remain consistent. Therefore, as the liquid level in the water tank drops, the mixed liquid in the accommodating chamber 10 will be discharged into the water tank through the diversion hole 101, so that the water in the water tank has a cleaning effect, and the discharge will not stop until the liquid level of the mixed liquid in the accommodating chamber 10 is lower than the diversion hole 101.

[0041] When the water tank is filled with water again, the liquid level will gradually rise. When the liquid level corresponds to the guide hole 101 again, since the air pressure hole 102 is still kept open, the water in the water tank can smoothly enter the containing chamber 10 through the guide hole 101, so that the liquid level inside and outside the containing chamber 10 is consistent; until the liquid level continues to rise to the air pressure hole 102, the water in the water tank contacts the buoyancy plug 2 and drives it upward, thereby closing the air pressure hole 102. In this process, since the air pressure hole 102 is closed in time by the buoyancy plug 2, the mixed liquid cannot pass through the air pressure hole 102, and the buoyancy plug 2 can also prevent the containing chamber 10 from subsequently exchanging liquid through the air pressure hole 102.

[0042] In summary, the utility model designs a accommodating chamber 10 in the bottle body 1 for placing detergent, and designs an air pressure hole 102 on the side wall of the accommodating chamber 10 to ensure the air pressure balance inside and outside the bottle body 1, so that the water in the water tank and the accommodating chamber 10 can flow smoothly through the guide hole 101; and the design of the buoyancy plug 2 is used to open and close the air pressure hole 102 under specific circumstances. On the one hand, it can prevent the mixed liquid in the accommodating chamber 10 from being discharged into the water tank through the air pressure hole 102 during the water storage process of the water tank, thereby reducing the release amount of the mixed liquid. On the other hand, it can prevent the accommodating chamber 10 from continuously exchanging liquid with the water tank through the air pressure hole 102 in the subsequent process, thereby reducing the dissolution rate of the detergent; therefore, the above design mainly utilizes the buoyancy plug 2 to adapt to the liquid level of the water tank, thereby controlling the opening and closing timing of the air pressure hole 102 to block the discharge and diffusion of the mixed liquid, thereby solving the problem of too fast dissolution and excessive release of the detergent.

[0043] It should be noted that during the water storage process in the water tank, the water has a tendency to drive the bottle body 1 to float. For this reason, the bottle body 1 in the utility model can be made of metal or other materials with a certain weight to overcome the buoyancy through the weight of the bottle body 1 itself to prevent the bottle body 1 from floating.

[0044] On the other hand, there are various types of detergents, and users can choose the corresponding flavor type according to their own preferences; and the detergent can be in the form of slow-release gel, solid, etc., so as to effectively extend the use time; the type and form of the detergent of the utility model are not limited; wherein, the mixed liquid formed by the contact of water with the detergent has a diffusion effect, therefore, the more channels there are between the containing cavity 10 and the water tank, the faster the diffusion speed; on the contrary, in the utility model, since the air pressure hole 102 is closed, the mixed liquid can only diffuse through the guide hole 101, so the diffusion speed of the mixed liquid will be reduced, so that the rate of liquid exchange between the containing cavity 10 and the water tank will be slowed down, thereby avoiding the detergent from dissolving too quickly.

[0045] It should also be noted that, in addition to designing the buoyancy plug 2, in the prior art, the air pressure hole 102 is generally designed to be very small, and the water tension is used to form a water film layer at the air pressure hole 102 to prevent the mixed liquid from overflowing from the air pressure hole 102; however, in actual use, if the water film layer cannot be broken in time to block the air pressure hole 102, the guide hole 101 will fail, resulting in the disconnection between the accommodating chamber 10 and the water tank, which is not worth the loss.

[0046] See attached Figure 3 , Attachment Figure 6 and attached Fig. 9The bottle body 1 includes a bottle body 11 and a bottle cap 12 which are detachable from each other. The bottle body 11 and the bottle cap 12 enclose a receiving chamber 10. The flow guide hole 101 is arranged on the bottle body 11 or the bottle cap 12, and the air pressure hole 102 is arranged on the bottle cap 12. The bottle body 11 and the bottle cap 12 are detachably connected, so that the bottle body 1 can be assembled and disassembled to facilitate the cleaning of the receiving chamber 10 and the replacement of the cleaning agent.

[0047] Among them, the positions of the guide hole 101 and the air pressure hole 102 can be set according to actual needs. For example, the guide hole 101 and the air pressure hole 102 are generally set on the bottle cap 12 to facilitate processing and production, and at the same time, the internal space of the bottle body 11 can be fully used to fill the detergent; in addition, the air pressure hole 102 is generally located above the guide hole 101 and is set at the top of the bottle cap 12, so that the liquid level can be placed between the air pressure hole 102 and the guide hole 101, thereby ensuring that the mixed liquid in the containing chamber 10 can be discharged smoothly, and ensuring that the containing chamber 10 is filled with water.

[0048] See attached Figure 3 , Attachment Figure 6 and attached Fig. 9 There are various ways to disassemble the bottle body 11 and the bottle cap 12, for example, threaded connection, bonding, welding, etc., which are not limited in the present invention; and in order to facilitate assembly and improve sealing, in this embodiment, the inside of the bottle body 11 is opened upward, and an insert block 111 is provided at the opening of the bottle body 11, and a first sealing ring 110 is provided on the insert block 111; the inside of the bottle cap 12 is opened downward, and a second sealing ring 120 adapted to the first sealing ring 110 is provided at the opening of the bottle cap 12.

[0049] Specifically, during assembly, the insert block 111 is inserted into the opening of the bottle cap 12 so that the first sealing ring 110 is placed above the second sealing ring 120 and the second sealing ring 120 is buckled, so that the bottle body 11 and the bottle cap 12 are fixed, and with the cooperation of the first sealing ring 110 and the second sealing ring 120, the water in the water tank can be prevented from seeping into the accommodating chamber 10 through the gap between the two; similarly, during disassembly, it is only necessary to pull the bottle body 11 and the bottle cap 12 so that the first sealing ring 110 is separated from the second sealing ring 120.

[0050] See attached Figure 3 The bottom surface of the bottle body 11 is designed to be concave, which makes the bottom of the bottle body 1 arch, thereby improving the stability of the structure of the bottle body 1 itself and reducing the possibility of the bottle body 1 breaking during use.

[0051] See attached Figure 7 , Attachment Figure 8 and attached Fig.10The buoyancy plug 2 includes a slide column 22, a float 21 and a bottom plug 23. The slide column 22 is slidably installed in the air pressure hole 102, and there is a gap between the slide column 22 and the air pressure hole 102 for gas to pass through; the float 21 is installed on the top of the slide column 22 and placed in the outside, and the bottom plug 23 is installed at the bottom of the slide column 22 and placed in the accommodating cavity 10.

[0052] Specifically, when placing the bottle body 1 in the water tank, the bottle body 1 will be filled with water and contact the detergent to form a mixed liquid. At this time, the liquid level is above the air pressure hole 102, and the air pressure hole 102 is closed under the action of the float 21 and the bottom plug 23. On the one hand, it can directly prevent the mixed liquid from being discharged into the water tank through the air pressure hole 102, and on the other hand, it can reduce the connection channel between the accommodating chamber 10 and the water tank, so that the liquid exchange speed between the accommodating chamber 10 and the water tank is slowed down, thereby reducing the dissolution rate of the detergent.

[0053] When the water in the water tank is pumped out to the outside to flush the toilet body (not shown in the figure), the liquid level will gradually drop until the liquid level is lower than the air pressure hole 102 and is located above the diversion hole 101, the float 21 falls under the action of gravity and drives the slide column 22 to move downward, so that the bottom plug 23 opens the air pressure hole 102, and at this time the accommodating chamber 10 is connected to the outside through the gap between the slide column 22 and the air pressure hole 102 to maintain the air pressure balance inside and outside the bottle body 1; and under the action of air pressure, the liquid level height of the accommodating chamber 10 and the water tank will be consistent, so as the liquid level of the water tank drops, the mixed liquid in the accommodating chamber 10 will be discharged into the water tank through the diversion hole 101, so that the water in the water tank has a cleaning effect, and the discharge will not stop until the liquid level of the mixed liquid in the accommodating chamber 10 is lower than the diversion hole 101.

[0054] When the water tank is filled with water, the liquid level will gradually rise. When the liquid level corresponds to the guide hole 101 again, the float 21 will not move because it does not touch the water, so that the air pressure hole 102 remains open to maintain the air pressure balance inside and outside the bottle body 1. Therefore, the water in the water tank can smoothly enter the accommodating chamber 10 through the guide hole 101; until the liquid level continues to rise to the air pressure hole 102, the float 21 floats up under the action of buoyancy to drive the sliding column 22 to move up, and then the bottom plug 23 blocks the air pressure hole 102. In this process, since the air pressure hole 102 is closed in time by the buoyancy plug 2, the mixed liquid cannot overflow and diffuse through the air pressure hole 102.

[0055] In summary, the float 21 is located above the air pressure hole 102, so that the buoyancy plug 2 can accurately follow the movement of the liquid surface, so as to accurately control the timing of the bottom plug 23 closing the air pressure hole 102 during the process of water storage and drainage in the water tank, and ensure that the accommodating chamber 10 can only discharge the mixed liquid through the guide hole 102 and exchange liquid with the water tank; in addition, the buoyancy plug 2 composed of the slide column 22, the float 21 and the bottom plug 23 has a simple overall structure, low cost, and is easy to process and produce, and it does not occupy the internal space of the bottle body 1, so that the accommodating chamber 10 can be placed with more detergent to extend the overall use time.

[0056] See attached Figure 1 -Attached Figure 3 and attached Figure 6 -Attached Figure 8 In order to prevent the float 21 from blocking the gap between the slide column 22 and the air pressure hole 102 after falling, in the utility model, a spacer 211 is also provided on the float 21. When the float 21 falls, the spacer 211 abuts against the bottle body 1 and forms an air path 210. The air path 210 connects the gap between the slide column 22 and the air pressure hole 102 to ensure that the accommodating chamber 10 can remain connected to the outside world and maintain the balance of internal and external air pressures.

[0057] See attached Fig.10 , multiple spacers 211 are arranged in a circular array at the bottom of the float 21, and air paths 210 are formed between multiple spacers 211; this design allows multiple air paths 210 to be arranged at intervals around the air pressure hole 102 and synchronously connect the gaps, so that the air intake of the accommodating chamber 10 is stable. At the same time, the multiple separated designs can also ensure stable contact between the float 21 and the bottle body 1, avoiding the float 21 from deflecting.

[0058] For ease of understanding, in the present invention, a cross-shaped design of multiple spacers 211 is taken as an example, wherein the four air paths 210 formed by the cross-shaped spacers 211 are of the same size, which can ensure stable ventilation and at the same time provide the same support for each part of the bottom side of the float 21, so that the force on the float 21 is balanced, effectively preventing the float 21 from shifting and causing blockage in the gap between the sliding column 22 and the air pressure hole 102.

[0059] Furthermore, the contact surface between the bottle body 1 and the spacer 211 can be a curved surface, a flat surface, etc., and in order to allow each spacer 211 to be placed on the bottle body 1 more stably, the contact surface between the bottle body 1 and the spacer 211 in the utility model is preferably a flat surface.

[0060] See attached Figure 1 -Attached Figure 4 and attached Figure 6 -Attached Figure 8Since there is a gap between the slide column 22 and the air pressure hole 102, if the float 21 is offset, one side of the gap will be blocked and the other side will be too large, resulting in uneven air intake and affecting the speed of water entering and exiting the guide hole 101; for this reason, in this embodiment, the bottle body 1 is further provided with a block 13 on the contact surface with the spacer 211, and the block 13 is annular in design and its inner surface is inclined downward toward the spacer 211.

[0061] Specifically, the annular block 13 can block the spacer 211 from all sides, which can limit the movement of the spacer 211 along the plane without limiting the up and down movement and rotation of the spacer 211, thereby ensuring that the float 21 can move normally while avoiding the float 21 from shifting and causing the gap to change; and the inner surface of the block 13 is inclined, which can provide an escape space to ensure that the air path 210 can be smoothly connected to the outside world, and if the spacer 211 shifts, under the action of gravity, it will also move down quickly along the inclined surface and return to its original position, so the inclined surface also has the function of adjusting the position of the float 21.

[0062] See attached Figure 6 -Attached Fig.10 The sliding column 22, the floating ball 21 and the bottom plug 23 are integrally formed and are all made of EVA material; the bottom plug 23 is hemispherical in design, and the diameter of the bottom plug 23 is greater than the diameter of the air pressure hole 102.

[0063] Among them, the sliding column 22, the floating ball 21 and the bottom plug 23 are integrally formed, which is convenient for unified processing and production, and makes the formed buoyancy plug 2 stable in structure and balanced in force; and the use of EVA material is to ensure that the entire buoyancy plug 2 has good buoyancy while also having deformation and recovery capabilities, so that the hemispherical bottom plug 23 can smoothly pass through the air pressure hole 102 to the accommodating cavity 10.

[0064] Specifically, when installing the buoyancy plug 2, the bottom plug 23 is coaxially aligned with the air pressure hole 102, and then pressed down with force, so that the bottom plug 23 is deformed and enters the accommodating cavity 10. After the bottom plug 23 enters the accommodating cavity 10 and returns to its original state, its diameter is larger than the air pressure hole 102. In this case, even if the float 21 is offset, the bottom plug 23 can still block the air pressure hole 102 normally.

[0065] It should be noted that, regarding the use of materials, in addition to EVA materials, other materials that have buoyancy, deformation ability and recovery ability can also be used, such as foam rubber with buoyancy, etc., and this is not limited in the present utility model.

[0066] See attached Figure 1 and attached Fig.10 A connecting block 24 is provided on the top of the buoyancy plug 2, and a rope hole 240 for installing a hanging rope (not shown in the figure) is provided on the connecting block 24.

[0067] Among them, one end of the hanging rope is installed on the connecting block 24, and the other end is placed outside the water tank. The user can place the bottle body 1 in the water tank or take it out from the water tank through the hanging rope, which improves the convenience of use and avoids the user from putting his hands into the water tank and getting his hands dirty.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A toilet tank cleaning device, characterized in that: include: A bottle body (1), wherein a receiving cavity (10) for placing a cleaning agent is provided inside the bottle body (1), a flow guide hole (101) and an air pressure hole (102) connected to the outside are provided on a side wall of the flow guide hole (101), and the air pressure hole (102) is located above the flow guide hole (101); A buoyancy plug (2) is movably mounted at the air pressure hole (102), and the buoyancy plug (2) can float along with the liquid surface to open or close the air pressure hole (102).

2. A toilet tank cleaning device according to claim 1, characterized in that: The bottle body (1) comprises a bottle body (11) and a bottle cap (12) which are detachable from each other, wherein the bottle body (11) and the bottle cap (12) enclose the accommodating cavity (10); the flow guide hole (101) is arranged on the bottle body (11) or the bottle cap (12), and the air pressure hole (102) is arranged on the bottle cap (12).

3. A toilet tank cleaning device according to claim 2, characterized in that: The interior of the bottle body (11) is open upwards, and an insert block (111) is provided at the opening of the bottle body (11), and a first sealing ring (110) is provided on the insert block (111); the interior of the bottle cap (12) is open downwards, and a second sealing ring (120) is provided at the opening of the bottle cap (12); the insert block (111) can be inserted into the opening of the bottle cap (12), so that the first sealing ring (110) is placed above the second sealing ring (120) and is buckled with the second sealing ring (120).

4. A toilet tank cleaning device according to claim 1, characterized in that: The buoyancy plug (2) comprises a floating ball (21), a sliding column (22) and a bottom plug (23); the sliding column (22) is slidably mounted in the air pressure hole (102), and a gap is provided between the sliding column (22) and the air pressure hole (102) for gas to pass through; the floating ball (21) is mounted on the top of the sliding column (22) and is placed outside, and the bottom plug (23) is mounted on the bottom of the sliding column (22) and is placed in the accommodating cavity (10); When the float (21) floats up under the action of buoyancy, it drives the slide column (22) to move upward, so that the bottom plug (23) blocks the air pressure hole (102); when the float (21) falls under the action of gravity, it drives the slide column (22) to move downward, so that the bottom plug (23) opens the air pressure hole (102), and at this time, the accommodating cavity (10) is connected to the outside world through the gap between the slide column (22) and the air pressure hole (102).

5. A toilet tank cleaning device according to claim 4, characterized in that: A spacer (211) is also provided on the float (21). When the float (21) falls, the spacer (211) abuts against the bottle body (1) to form an air path (210). The air path (210) connects the gap between the slide column (22) and the air pressure hole (102).

6. A toilet tank cleaning device according to claim 5, characterized in that: The spacers (211) are provided in a plurality and arranged in a circumferential array at the bottom of the float (21), and the air path (210) is formed between two of the spacers (211).

7. A toilet tank cleaning device according to claim 6, characterized in that: The contact surface between the bottle body (1) and the spacer (211) is a plane.

8. A toilet tank cleaning device according to claim 6, characterized in that: The bottle body (1) is further provided with a blocking block (13) on the contact surface with the spacer block (211); the blocking block (13) is designed to be annular, and the inner surface of the blocking block (13) is inclined downwards towards the spacer block (211).

9. A toilet tank cleaning device according to claim 4, characterized in that: The slide column (22), the float (21) and the bottom plug (23) are integrally formed and are all made of EVA material; the bottom plug (23) is hemispherical in design, and the diameter of the bottom plug (23) is greater than the diameter of the air pressure hole (102).

10. A toilet tank cleaning device according to claim 1, characterized in that: A connecting block (24) is provided on the top of the buoyancy plug (2), and a rope hole (240) for installing a hanging rope is provided on the connecting block (24).

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