A toilet brush holder with a lid
By designing a rotating arm, a flexible arm, and a floating ring, the problems of easy rusting, large space occupation, and unsmooth opening and closing of toilet brush holders with lids are solved, achieving an automated, compact, and aesthetically pleasing opening and closing effect for the toilet lid.
Patent Information
- Application Number
- CN202521871330.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-30
AI Technical Summary
Existing toilet brush holders with covers are prone to rusting during long-term use, take up a lot of space, have difficult-to-open and close covers, and cannot effectively prevent odors and dirt from being exposed.
The design employs a rotating arm, a flexible arm, and a floating ring. The elastic force generated by the deformation and recovery of the flexible arm enables the automatic opening and closing of the lid, avoiding the use of hardware accessories and large structures.
It achieves a clever and smooth opening and closing of the lid, reduces the space occupied by the structure, prevents rust, and can be opened and closed without additional force, thus improving the cleanliness and aesthetics of the bathroom.
Smart Images
Figure CN224671414U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of toilet brush holders, specifically relating to a toilet brush holder with a lid. Background Technology
[0002] Toilet brush holders, as storage devices for bathroom cleaning tools, primarily function to clean stains on the toilet bowl's inner wall, especially stubborn grime that flushing alone cannot remove. Early toilet brushes were often placed directly on the floor or caught dripping water using simple plates or old containers. Residual moisture on the brush head easily led to bacterial growth, cross-contamination, and low cleaning efficiency. Therefore, a container that can stably store wet, soiled brushes is needed.
[0003] Early toilet brush holders featured an open or simple tray design. They typically consisted of a plastic or stainless steel base with a raised bracket or retainer in the center to secure the brush handle, and a shallow dish at the bottom to catch any dripping liquid. However, this completely open design couldn't prevent the odors emanating from bacteria and organic residue on the brush head. These odors would then diffuse directly into the bathroom air. The grime remaining on the brush head was also unsightly, affecting the overall cleanliness and aesthetics of the bathroom. Therefore, toilet brush holders with lids were developed.
[0004] Existing toilet brush holders with lids typically have a spring or elastic cord at the bottom of the holder. The lid opens and closes as the brush head is placed, and the structure requires metal fittings, which are prone to rusting over long-term use. The overall design takes up a lot of space and the lid is not smooth enough when opening and closing. Summary of the Invention
[0005] To address the problems in related technologies, this utility model proposes a toilet brush holder with a lid. By setting a rotating arm, a flexible arm, and a floating ring, the flexible structure of the flexible arm generates deformation during movement and recovers the elastic force when the lid is opened and closed.
[0006] This utility model is implemented as follows:
[0007] A toilet brush holder with a lid includes an outer barrel body, a lid, a rotating arm, a flexible arm, and a floating ring;
[0008] The outer barrel is provided with at least one barrel lid, and the outer barrel and the barrel lid are hinged to each other by the rotating arm; a flexible arm is also connected to the rotating arm, and a floating ring is connected to the lower end of the flexible arm.
[0009] The flexible arm has a connecting shaft at one end connected to the rotating arm, and is movably connected to the rotating arm through the connecting shaft. The side of the flexible arm away from the connecting shaft is fixedly connected to the floating ring.
[0010] The flexible arm is a flexible structure. The connecting shaft rotates with the rotating arm and moves along an arc-shaped path, causing the flexible arm to deform and move up / down together with the floating ring to help open / close the bucket lid.
[0011] Preferably, the flexible arm near the connecting shaft deforms and recovers its deformation in a direction different from the movement of the floating ring, and moves up / down together with the floating ring to assist in opening / closing the bucket lid.
[0012] Specifically, the flexible arm deforms on the side near the connecting shaft, while the end of the flexible arm fixedly connected to the floating ring does not deform. The fixed connection to the floating ring causes the other end of the flexible arm to deform, thus moving with the rotating arm to form an arc-shaped path. Through the structure of the rotating arm and connecting shaft, the rotation of the rotating arm drives the connecting shaft out of a partially arc-shaped path, causing the flexible arm to deform horizontally, and then recover its deformation. This entire process from the initial deformation to the final recovery corresponds to the entire process of opening or closing the lid.
[0013] Preferably, when the connecting shaft rotates with the rotating arm and moves along an arc path, the flexible arm will undergo a maximum deformation, and when it undergoes the maximum deformation, the angle formed by the bucket lid opening and closing from the horizontal surface to the upward is in the range of 30°-50°.
[0014] Specifically, an external force drives the rotating arm to rotate, starting to open or close the bucket lid, and the rotating arm drives the flexible arm to move; the connecting shaft rotates with the rotating arm to form an arc path, causing the flexible structure of the flexible arm to begin to deform and expand;
[0015] When the flexible structure reaches its maximum deformation, the flexible arm continues to move, using the elastic force generated by the deformation to drive the rotating arm to continue rotating, fully opening or closing the bucket lid.
[0016] The flexible structure of the flexible arm undergoes deformation and then recovers its original shape, corresponding to the opening or closing of the bucket lid. At the same time, the flexible arm drives the floating ring to move up and down with the opening and closing of the bucket lid. When the lid is opened or closed to about halfway, which corresponds to an opening and closing range of 30° to 50°, the maximum deformation occurs.
[0017] Preferably, the rotating arm includes a hinge portion and a curved arm portion; the hinge portion has a hinge shaft and is hinged to the outer barrel body through the hinge shaft; the curved arm portion extends from the hinge portion to the side where the flexible arm is located; the end of the curved arm portion is connected to the barrel lid.
[0018] Specifically, the swing arm is connected to the outer barrel body via a hinge shaft, allowing it to rotate and thus rotate the barrel lid. The lid's rotation angle is from 0 to 90 degrees. The hinged part connects to the outer barrel body, and the bent arm connects to the barrel lid.
[0019] Preferably, a recess is provided between the position where the bent arm and the lid connect and the hinge; the side wall of the recess is provided with a shaft hole, and the connecting shaft passes through the shaft hole.
[0020] Specifically, the recessed part is designed to accommodate the opening edge of the outer barrel. When the lid is flipped open, a recessed part is required between the lid and the hinge of the rotating arm to accommodate the opening of the outer barrel and avoid collision and interference.
[0021] Preferably, the flexible arm includes a deformable part and a fixed part. The deformable part is a flexible structure and is a U-shaped plate structure. The connecting shaft is located at the upper end of the U-shape. The fixed part is connected to the floating ring.
[0022] Specifically, the flexible arm is a longitudinal plate-like structure with a deformable part at the top and a fixed part at the bottom. The flexible arm is made of PUM material, which has high toughness and will not break when deformed. The connecting shaft is located at the top of the deformable part, that is, the deformable part is connected to the rotating arm.
[0023] Preferably, it also includes an inner tub body, which is located inside the outer tub body and is used to hold a toilet brush; the open end of the outer wall of the inner tub body has an outwardly protruding ring edge, and the floating ring is sleeved on the outer wall of the inner tub body and located below the ring edge, and the inner tub body is supported on the floating ring through the ring edge.
[0024] Specifically, the weight of the inner tub and toilet brush can generate downward pressure on the floating ring, causing the floating ring to move downward and drive the flexible arm to deform, thereby rotating the rotating arm and closing the lid.
[0025] Preferably, the flexible arm and the floating ring are separately configured or integrally formed;
[0026] Alternatively, the floating ring may be separately disposed from the inner barrel body, or may be integrally formed;
[0027] Alternatively, the flexible arm, floating ring, and inner barrel body may be integrally formed.
[0028] Specifically, the flexible arm and the floating ring can be separated or integrated. Similarly, the floating ring and the inner barrel can be separated or integrated. The flexible arm, the floating ring, and the inner barrel can also be designed as a single unit. That is, except for the flexible arm and the inner barrel which do not have direct contact, the others can be set separately, or they can be integrated in pairs or all three can be integrated as a single unit.
[0029] Preferably, when the flexible arm and the floating ring are separately configured, the outer side of the floating ring is provided with a fixing ring, and the fixing ring is provided with an inwardly recessed groove. The fixing part is adapted to the fixing ring, and the fixing part is provided with a protruding locking member. The locking member is adapted to the groove. When the fixing part is inserted into the fixing ring, the locking member is locked into the groove through the fixing ring and engages with the groove.
[0030] Specifically, the fixing part is mainly connected to the floating ring, driving the floating ring to move up and down. The connection method of the locking part and the locking groove can be disassembled; it can be connected by a traditional snap-fit connection method.
[0031] Preferably, the upper end of the outer barrel is provided with two symmetrical barrel lids; the rotating arm and the flexible arm are symmetrically arranged corresponding to the barrel lids on their respective sides, and the two flexible arms are respectively connected to the two sides opposite to the floating ring.
[0032] Specifically, the toilet lid opens in two, with an opening in the middle. The toilet brush can be placed inside, with the handle of the toilet brush protruding through the opening. The rotating arm and flexible arm are located on both sides of the floating ring and correspond to the lid on their respective sides. They synchronously drive the floating ring up and down from both sides. Corresponding to the opening and closing of the toilet lid, when the toilet brush is picked up, it provides upward force to the lid, causing the rotating arm to rotate when the lid opens. The flexible arm deforms and drives the floating ring to move upward as well. When the lid is closed, the floating ring moves downward.
[0033] When the toilet lid is open, the toilet brush is placed inside the inner tub. The weight of the toilet brush and the inner tub applies downward pressure to the floating ring, causing the floating ring to move the flexible arm downward. The flexible structure of the flexible arm drives the rotating arm to rotate and deform, causing the lid to begin closing. After reaching maximum deformation, the flexible arm begins to recover its deformation and generates elasticity, continuing to drive the rotating arm to rotate faster, increasing the speed of lid closing until the lid is completely closed. The lid is initially closed using only gravity. When maximum deformation is reached, the elasticity of the recovering deformation and gravity accelerate the rotation of the rotating arm, increasing the speed of lid closing and making the lid closing more flexible and smooth.
[0034] When the lid is closed, remove the toilet brush from the inner tub. Use the lifting of the toilet brush to apply an upward driving force to the lid, causing it to open. This causes the rotating arm to rotate, which in turn moves the flexible arm. The flexible arm's flexible structure begins to deform and move upward, causing the floating ring to move upward with the flexible arm. Once the maximum deformation is reached, the flexible arm begins to recover its deformation and generate elasticity. The flexible arm then pushes the rotating arm to continue rotating and accelerates the opening speed of the lid until it is fully open.
[0035] The force applied during the opening and closing of the toilet lid comes from the toilet brush. By picking up or putting down the toilet brush, an initial external force is applied to the lid, causing the flexible arm to deform. When the flexible arm reaches its maximum deformation, it begins to recover its deformation. The elastic force generated during the recovery process of the flexible arm provides assistance to help open or close the lid.
[0036] Compared with the prior art, the present invention achieves the following beneficial effects:
[0037] This utility model provides a toilet brush holder with a lid, including an outer barrel and a lid, which are hinged together by a rotating arm. A flexible arm with a flexible structure is also connected to the lid, and a floating ring is connected to the flexible arm. When the lid is opened or closed, the rotation of the rotating arm drives the flexible arm, causing the connecting shaft of the flexible arm to form an arc path, thus generating and recovering deformation. Simultaneously, the flexible arm also drives the floating ring to move up or down. The toilet brush holder uses a flexible arm structure design, resulting in a smaller size compared to torsion springs, which require more space and do not require metal fittings, thus preventing rust. The overall structure has a small assembly space, making the design more compact and sophisticated.
[0038] The toilet brush applies external force when opening and closing the lid, facilitating easy opening and closing. Simultaneously, the flexible structure of the flexible arm deforms and recovers during the opening and closing process, generating elasticity. Therefore, only an initial guiding force is needed; no further external force is required, as the elasticity of the recovering deformation is sufficient to open or close the lid. Conversely, the lid closes using only the weight of the toilet brush itself, requiring less external force and resulting in a more agile and effortless opening and closing process. Furthermore, the recovery deformation process accelerates the opening and closing, making the process smoother. Attached Figure Description
[0039] Figure 1 This is one of the product schematic diagrams of a toilet brush holder with a cover according to an embodiment of this utility model;
[0040] Figure 2 This is a second schematic diagram of a toilet brush holder with a cover, as described in this utility model embodiment.
[0041] Figure 3 This is an exploded structural diagram of a toilet brush holder with a cover according to an embodiment of the present utility model;
[0042] Figure 4 This is a schematic diagram of the internal structure of a toilet brush holder with a cover according to an embodiment of the present utility model;
[0043] Figure 5 This is an exploded view of a partial structure of a toilet brush holder with a cover according to an embodiment of the present utility model;
[0044] Figure 6 This is a schematic diagram of the internal connection of a toilet brush holder with a cover according to an embodiment of the present utility model;
[0045] Figure 7 This is a schematic diagram of the rotating arm structure of a toilet brush holder with a cover according to an embodiment of the present utility model;
[0046] Figure 8 This is a schematic diagram of a flexible arm structure for a toilet brush holder with a cover, according to an embodiment of the present invention.
[0047] Figure 9 This is a schematic diagram of the floating ring structure of a toilet brush holder with a cover according to an embodiment of the present utility model.
[0048] Figure label:
[0049] 1. Toilet brush holder with lid;
[0050] 11. Outer barrel body;
[0051] 12. Bucket lid;
[0052] 13. Swing arm; 131. Hinge section; 1311. Hinge shaft; 132. Bent arm section; 1321. Recessed section; 1322. Shaft hole;
[0053] 14. Flexible arm; 141. Deformation part; 1411. Connecting shaft; 142. Fixing part; 1421. Locking component;
[0054] 15. Floating ring; 151. Retaining ring; 1511. Slot;
[0055] 2. Inner tub body; 21. Ring edge;
[0056] 3. Toilet brush. Detailed Implementation
[0057] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0058] Example
[0059] like Figures 1 to 9 A toilet brush holder with a lid 1 includes an outer barrel body 11, a lid 12, a rotating arm 13, a flexible arm 14, and a floating ring 15;
[0060] The outer barrel body 11 is provided with at least one barrel lid 12, and the outer barrel body 11 and the barrel lid 12 are hinged to each other through the rotating arm 13; a flexible arm 14 is also connected to the rotating arm 13, and a floating ring 15 is connected to the lower end of the flexible arm 14.
[0061] The flexible arm 14 has a connecting shaft 1411 at one end connected to the rotating arm 13, and is movably connected to the rotating arm 13 through the connecting shaft 1411. The side of the flexible arm 14 away from the connecting shaft 1411 is fixedly connected to the floating ring 15.
[0062] The flexible arm 14 is a flexible structure. The connecting shaft 1411 rotates with the rotating arm 13 and moves along an arc path, causing the flexible arm 14 to deform and move up / down together with the floating ring 15 to help open / close the bucket lid 12.
[0063] The upper end of the outer barrel body 11 is provided with two symmetrical barrel lids 12; the rotating arm 13 and the flexible arm 14 correspond to the barrel lid 12 on their respective sides and are also symmetrically arranged, and the two flexible arms 14 are respectively connected to the two sides opposite to the floating ring 15.
[0064] The toilet lid 12 is designed to open in two, with an opening in the middle. The toilet brush 3 can be placed inside, with the handle of the toilet brush 3 protruding through the opening. The rotating arm 13 and the flexible arm 14 are both located on both sides of the floating ring 15 and correspond to the toilet lid 12 on their respective sides. They synchronously drive the floating ring 15 up and down from both sides. At the same time, corresponding to the opening and closing of the toilet lid 12, when the toilet brush 3 is picked up, it can provide upward force to the toilet lid 12, causing the rotating arm 13 to rotate when the toilet lid 12 opens upward, and the flexible arm 14 to deform and drive the floating ring 15 to move upward as well. When the toilet lid 12 is closed, the floating ring 15 moves downward.
[0065] The flexible arm 14, located on the side near the connecting shaft 1411, deforms and recovers its deformation in a direction different from the movement of the floating ring 15, and moves up / down together with the floating ring 15 to assist in opening / closing the bucket lid 12.
[0066] The flexible arm 14 deforms on the side near the connecting shaft 1411, while the end of the flexible arm 14 fixedly connected to the floating ring 15 does not deform. The fixed connection to the floating ring 15 causes the other end of the flexible arm 14 to deform, thus moving with the rotating arm 13 to form an arc-shaped path. Through the structure of the rotating arm 13 and the connecting shaft 1411, the rotation of the rotating arm 13 drives the connecting shaft 1411 to move out of a partially arc-shaped path, causing the flexible arm 14 to deform in the horizontal direction, and then recover its deformation. The entire process from the initial deformation to the final recovery of deformation corresponds to the entire process of opening or closing the lid.
[0067] In this embodiment, the arc-shaped paths are all formed by deformation towards the inside of the flexible arm 14. The deformation is generally not very large.
[0068] When the connecting shaft 1411 rotates with the rotating arm 13 and moves along an arc path, the flexible arm 14 will undergo a maximum deformation. When it undergoes the maximum deformation, the angle formed by the bucket lid 12 opening and closing from the horizontal surface to the upward is 30°-50°.
[0069] An external force drives the rotating arm 13 to rotate, starting to open or close the bucket lid 12. The rotating arm 13 drives the flexible arm 14 to move. The connecting shaft 1411 rotates with the rotating arm 13 to form an arc path, causing the flexible structure of the flexible arm 14 to begin to deform and expand.
[0070] When the flexible structure reaches its maximum deformation, the flexible arm 14 continues to move, using the elastic force generated by the deformation to drive the rotating arm 13 to continue rotating, fully opening or closing the bucket lid 12.
[0071] The flexible structure of the flexible arm 14 deforms and recovers its deformation, which corresponds to opening or closing the bucket lid 12. At the same time, the flexible arm 14 drives the floating ring 15 to move up and down with the opening and closing of the bucket lid 12. When the lid is opened or closed to about half position, that is, within the range of 30° to 50°, the maximum deformation is generated.
[0072] The rotating arm 13 includes a hinge portion 131 and a bent arm portion 132; the hinge portion 131 has a hinge shaft 1311, which is hinged to the outer barrel body 11; the bent arm portion 132 is formed by extending from the hinge portion 131 to the side where the flexible arm 14 is located; the end of the bent arm portion 132 is connected to the barrel lid 12.
[0073] The rotating arm 13 is connected to the outer barrel 11 via a hinge shaft 1311, allowing it to rotate and drive the barrel lid 12 to rotate. The rotation angle of the barrel lid 12 is from 0 degrees to 90 degrees. The hinge part 131 is used to connect to the outer barrel 11, and the bent arm part 132 is used to connect to the barrel lid 12.
[0074] At the position where the bent arm 132 connects to the lid 12, there is a recess 1321 between it and the hinge 131; the side wall of the recess 1321 is provided with a shaft hole 1322, and the connecting shaft 1411 passes through the shaft hole 1322.
[0075] The recess 1321 is provided to accommodate the opening edge structure of the outer barrel 11. When the barrel lid 12 is flipped open, a recess 1321 is required between the barrel lid 12 and the hinge 131 of the rotating arm 13 to accommodate the opening of the outer barrel 11 and avoid collision and interference.
[0076] The flexible arm 14 includes a deformable part 141 and a fixed part 142. The deformable part 141 is a flexible structure and is a U-shaped plate structure. The connecting shaft 1411 is located at the upper end of the U-shape. The fixed part 142 is connected to the floating ring 15.
[0077] The flexible arm 14 is a longitudinal plate-like structure with a deformation part 141 at the upper end and a fixed part 142 at the lower end. The flexible arm 14 is made of PUM material, which has high toughness and will not break when deformed. The connecting shaft 1411 is located at the upper end of the deformation part 141, that is, the deformation part 141 is connected to the rotating arm 13.
[0078] It also includes an inner tub body 2, which is located inside the outer tub body 11. The inner tub body 2 is used to place the toilet brush 3. The open end of the outer wall of the inner tub body 2 has an outwardly protruding ring edge 21. The floating ring 15 is sleeved on the outer wall of the inner tub body 2 and is located below the ring edge 21. The inner tub body 2 is supported on the floating ring 15 through the ring edge 21.
[0079] The weight of the inner tub 2 and the toilet brush 3 can generate downward pressure on the floating ring 15, causing the floating ring 15 to move down and drive the flexible arm 14 to deform, thereby rotating the rotating arm 13 and closing the lid 12.
[0080] The flexible arm 14 and the floating ring 15 are either separately configured or integrally formed;
[0081] Alternatively, the floating ring 15 and the inner barrel body 2 can be separately configured or integrally formed;
[0082] Alternatively, the flexible arm 14, the floating ring 15, and the inner barrel 2 can be integrally formed.
[0083] The flexible arm 14 and the floating ring 15 can be separated or integrated. Similarly, the floating ring 15 and the inner barrel 2 can be separated or integrated. The flexible arm 14, the floating ring 15 and the inner barrel 2 can also be designed as a single unit. That is, except for the flexible arm 14 and the inner barrel 2 which do not have direct contact, the others can be set separately, or they can be integrated in pairs or all three can be integrated as a single unit.
[0084] In this embodiment, the flexible arm 14 and the floating ring 15, and the floating ring 15 and the inner barrel body 2 are all separately configured.
[0085] When the flexible arm 14 and the floating ring 15 are separately set, the outer side of the floating ring 15 is provided with a fixing ring 151, and the fixing ring 151 is provided with an inwardly recessed slot 1511. The fixing part 142 is adapted to the fixing ring 151, and the fixing part 142 is provided with a protruding locking member 1421. The locking member 1421 is adapted to the slot 1511. When the fixing part 142 is inserted into the fixing ring 151, the locking member 1421 is locked into the slot 1511 through the fixing ring 151 and engages with the slot 1511.
[0086] The fixing part 142 is mainly connected to the floating ring 15, driving the floating ring 15 to move up and down. The connection between the locking part 1421 and the locking groove 1511 can be disassembled; that is, it can be connected by a traditional snap-fit connection method.
[0087] When the lid 12 is opened, the toilet brush 3 is placed in the inner tub 2. The weight of the toilet brush 3 and the inner tub 2 applies downward pressure to the floating ring 15, causing the floating ring 15 to move the flexible arm 14 downward. The flexible structure of the flexible arm 14 drives the rotating arm 13 to rotate and deform, and the lid 12 begins to close. When the maximum deformation is reached, the flexible arm 14 begins to recover its deformation and generates elasticity, which continues to drive the rotating arm 13 to rotate faster, speeding up the closing speed of the lid 12 until the lid 12 is completely closed. The lid 12 begins to close using only gravity as the initial force. When the maximum deformation is reached, the elasticity of the recovery deformation and gravity are used to accelerate the rotation of the rotating arm 13 and speed up the closing speed of the lid 12, making the closing of the lid 12 more flexible and smooth.
[0088] When the lid 12 is closed, the toilet brush 3 inside the inner tub 2 is taken out. The lifting of the toilet brush 3 applies an upward driving force to the lid 12, causing the lid 12 to open and drive the rotating arm 13 to rotate. The rotating arm 13 drives the flexible arm 14 to move. The flexible structure of the flexible arm 14 begins to deform and move upward, thereby driving the floating ring 15 to move upward with the flexible arm 14. When the maximum deformation is reached, the flexible arm 14 begins to recover its deformation and generate elasticity. The flexible arm 14 pushes the rotating arm 13 to continue to rotate and accelerates the rotation, speeding up the opening speed of the lid 12 until the lid 12 is fully opened.
[0089] The force applied during the opening and closing of the toilet lid 12 comes from the toilet brush 3. That is, by picking up or putting down the toilet brush 3, an external initial force is provided to the toilet lid 12, causing the flexible arm 14 to deform. When the flexible arm 14 reaches its maximum deformation, it begins to recover its deformation. The elastic force generated during the recovery process of the flexible arm 14 will provide assistance to help the toilet lid 12 open or close.
[0090] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A toilet brush holder with a cover, comprising an outer barrel, a barrel cover, a rotating arm, a flexible arm and a floating ring; characterized in that, at least one barrel cover is arranged on the outer barrel, and the outer barrel and the barrel cover are hingedly connected through the rotating arm; the rotating arm is further connected with the flexible arm, and the lower end of the flexible arm is connected with the floating ring; the end of the flexible arm connected with the rotating arm has a connecting shaft, and the flexible arm is movably connected with the rotating arm through the connecting shaft; the side of the flexible arm away from the connecting shaft is fixedly connected with the floating ring; the flexible arm is of a flexible structure, the connecting shaft rotates with the rotating arm and moves along an arc path, so that the flexible arm deforms and moves up and down together with the floating ring to help open / close the barrel cover.
2. A cistern brush holder with lid according to claim 1, characterised in that, the side of the flexible arm close to the connecting shaft deforms and recovers deformation in a direction different from the movement direction of the floating ring, and moves up and down together with the floating ring to help open / close the barrel cover.
3. A cistern brush holder with lid according to claim 1, characterised in that, when the connecting shaft rotates with the rotating arm and moves along an arc path, the flexible arm deforms once to the maximum, and when it deforms to the maximum, the barrel cover is opened / closed at an angle range of 30°-50° from the horizontal plane.
4. A cistern brush holder with lid according to claim 1, characterised in that, the rotating arm comprises a hinged part and a bent arm part; the hinged part has a hinged shaft, and is hingedly connected with the outer barrel through the hinged shaft; the bent arm part is formed by extending from the hinged part to the side where the flexible arm is located; and the end of the bent arm part is connected with the barrel cover.
5. A cistern brush holder with lid according to claim 4, characterised in that, a recessed part is arranged between the position where the bent arm part is connected with the barrel cover and the hinged part; the side wall of the recessed part is provided with a shaft hole, and the connecting shaft is arranged in the shaft hole.
6. A cistern brush holder with lid according to claim 1, characterised in that, the flexible arm comprises a deformed part and a fixed part; the deformed part is of a flexible structure, and is of a plate structure in the shape of a concave character; the connecting shaft is located at the upper end of the plate structure in the shape of a concave character; and the fixed part is connected with the floating ring.
7. A cistern brush holder with lid according to claim 1, characterised in that, further comprising an inner barrel, which is located inside the outer barrel and is used to place a toilet brush; the opening end of the outer side wall of the inner barrel has an outwardly protruding ring edge, the floating ring is arranged on the outer side wall of the inner barrel and is located below the ring edge, and the inner barrel is supported on the floating ring through the ring edge.
8. A cistern brush holder with lid according to claim 7, characterised in that, the flexible arm and the floating ring are separately arranged or integrally formed; alternatively, the floating ring and the inner barrel are separately arranged or integrally formed; alternatively, the flexible arm, the floating ring and the inner barrel are integrally formed.
9. A cistern brush holder with lid according to claim 6, characterised in that, when the flexible arm and the floating ring are separately arranged, the outer side of the floating ring is provided with a fixing ring, the fixing ring is provided with an inwardly recessed clamping groove, the fixed part is adapted to the fixing ring, the fixed part is provided with a protruding clamping part, the clamping part is adapted to the clamping groove, the fixed part is inserted into the fixing ring, the clamping part is clamped into the clamping groove through the fixing ring, and the clamping part is connected with the clamping groove in cooperation.
10. The covered toilet brush set of claim 1, wherein, the upper end of the outer barrel is provided with two barrel covers which are symmetrical to each other; the rotating arm and the flexible arm are also symmetrically arranged corresponding to the barrel cover on the side where they are located, and the two flexible arms are connected with the two opposite sides of the floating ring respectively.