Stainless steel water tank cover and water tank
By designing a fixed structure for the opening and closing rod of the stainless steel water tank cover, an overflow prevention structure, and a detachable filter screen structure, the problems of poor sealing of the water tank cover, lack of overflow prevention, and inconvenience in disassembling the filter screen were solved, thus achieving water tank sealing, overflow prevention, and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-13
AI Technical Summary
Existing stainless steel water tanks have problems such as poor sealing of the tank lid, lack of overflow prevention function, and inconvenience in disassembling the filter screen.
A stainless steel water tank cover was designed, which uses an opening and closing rod and a fixing structure to achieve quick fixing and sealing. It is equipped with an anti-overflow structure that uses a floating ball and lever to trigger a limit switch to prevent overflow, and the filter screen can be easily replaced through a detachable structure.
It enables quick fixing and sealing of the water tank cover, prevents overflow, reminds operators to handle it in time, simplifies the process of disassembling the filter screen, and reduces water waste and operational inconvenience.
Smart Images

Figure CN223990429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stainless steel water tank technology, and in particular to a stainless steel water tank cover and water tank. Background Technology
[0002] Stainless steel water tanks are a new generation of water tank products following fiberglass water tanks. They are made of stainless steel plates through precision molding, and are aesthetically pleasing, economical, practical, and durable. Compared with other water tanks, stainless steel water tanks have many advantages, such as beautiful appearance, light weight, high strength, corrosion resistance, high temperature resistance, seepage prevention, earthquake resistance, never growing moss, easy installation, and easy cleaning.
[0003] For example, in the prior art, a rotary water tank (publication number: CN222777917U) described in a Chinese utility model patent includes a tank body. A vertically extending inlet manifold is provided on the first side of the tank body. An inlet pipe is provided on the outer side of the inlet manifold, and multiple outlets are arranged vertically on the inner side. The inner cavity of the inlet manifold communicates with the inlet pipe and the multiple outlets. A drain pipe is provided at the lower end of the second side of the tank body. The first and second sides are opposite each other. A central rotating shaft is provided inside the tank body, and multiple spiral blades are provided on the outer side of the central rotating shaft. The inlet manifold and the drain pipe are located on opposite sides of the central rotating shaft. This rotary water tank is used as a mixer in a water supply system to further mix the supplied water before use, and it does not require additional force for mixing. However, this structure still has the following significant drawbacks:
[0004] 1. The water tank lid is secured with screws. While this method firmly holds the lid in place, it uses too many screws, and the screws are prone to stripping, causing the lid to leak and water to overflow.
[0005] 2. Existing stainless steel water tanks do not have an overflow prevention function and cannot promptly remind users to turn off the water source, which can easily cause excessive water volume to overflow and waste water resources.
[0006] 3. After prolonged use, the filter screen will become clogged with impurities, so it needs to be cleaned regularly. However, under traditional technology, external tools are usually required to install or remove the filter screen from the stainless steel water tank, which is inconvenient in actual operation. Summary of the Invention
[0007] This utility model aims to solve one of the technical problems existing in the prior art.
[0008] This application provides a stainless steel water tank cover, including a cover plate, a water inlet and a water inlet cover; it also includes an opening and closing rod, the middle part of which is fixedly connected to the top of the water inlet cover, one end of which is rotatably mounted on the cover plate, and the other end is provided with a slot, and can be mounted on the cover plate by a fixing structure.
[0009] Furthermore, the fixed structure includes a threaded rod and a rotating block. One end of the threaded rod is rotatably mounted on the cover plate, and the other end is threadedly connected to a threaded hole at the bottom of the rotating block. The rotating block has a rotating part on its top side wall that facilitates rotation.
[0010] The threaded rod can slide into the slot and be fixed by the rotating block pressing against the top of the end of the opening and closing rod with the slot.
[0011] Furthermore, a sealing ring is provided on the water inlet cover.
[0012] Meanwhile, a water tank suitable for the aforementioned stainless steel water tank cover is disclosed, including a tank body and a water outlet. A cover plate is fixedly connected to the top of the tank body, and a mounting bracket is fixedly provided on the cover plate. An anti-overflow structure is provided on the mounting bracket to prevent liquid from overflowing from the tank body. The anti-overflow structure includes a lever, a floating ball, a counterweight, and a limit switch. A floating ball is connected to one end of the lever, and a counterweight is provided at the other end. A limit switch is fixedly installed on the mounting bracket. The input end of the limit switch is located directly above the end of the lever connected to the floating ball. When the liquid level in the tank body reaches a threshold, the floating ball is driven by buoyancy to rotate the lever, causing the lever to trigger the limit switch.
[0013] The mounting bracket is equipped with a sliding groove, and a sliding block is rotatably connected to the middle of the lever. The sliding block is slidably installed in the sliding groove, and the lever can be driven to slide along the sliding groove by adjusting the structure.
[0014] Furthermore, the adjustment structure includes an adjustment motor and a lead screw. The lead screw is rotatably installed in the sliding groove and is threadedly connected to the sliding block. A first gear is fixedly connected to the lead screw. An adjustment motor is fixedly installed at the top of the cover plate. The output shaft of the adjustment motor extends into the sliding groove and is fixedly connected to a second gear. The second gear meshes with the first gear.
[0015] Furthermore, a protective shell is provided at the top of the cover plate, and the mounting bracket and anti-overflow structure are both inside the protective shell.
[0016] Furthermore, an observation window is provided on the protective shell.
[0017] Furthermore, a filter screen is installed at the water outlet via a detachable structure. The detachable structure includes an unlocking component and a pair of elastic locking components. An installation block is fixedly connected to the outer end of the water outlet. The installation block has an installation groove that communicates with the water outlet. The filter screen is slidably installed in the installation groove. The installation block has a pair of symmetrical elastic locking components and an unlocking component. The pair of elastic locking components are used to fix the filter screen in the current position, and the unlocking component is used to release the pair of elastic locking components from fixing the filter screen.
[0018] Furthermore, the unlocking component includes a rotating handle, a rotating shaft, and an unlocking block. The rotating shaft is rotatably installed inside the mounting block. One end of the rotating shaft extends out of the mounting block and is fixedly connected to the rotating handle. The unlocking block is fixedly sleeved on the outer side of the other end. The unlocking block is elliptical in shape.
[0019] Furthermore, the elastic locking components all include a spring, a locking block, and a movable plate. The mounting block has a movable groove that communicates with the mounting groove. The movable plate is slidably installed in the movable groove. One end of the spring is pressed and fixed on the movable plate, and the other end is pressed and fixed on the mounting block. The end of the movable plate facing the filter screen has a locking block. The filter screen has a locking groove corresponding to the locking block, and the locking block is inserted into the locking groove.
[0020] The unlocking block is located between a pair of movable plates, and both movable plates abut against the unlocking block.
[0021] The beneficial effects of this utility model are as follows:
[0022] 1. The opening and closing rod and the fixing structure enable the water inlet cover to be quickly fixed and easy to open. The sealing ring ensures a tight seal.
[0023] 2. With the anti-overflow structure, when the liquid level in the tank reaches the threshold, the lever will trigger the limit switch, which will then start the water pump to suck up the liquid in the tank and alert the operator through a buzzer, thereby preventing the liquid in the tank from being wasted due to overflow.
[0024] 3. With its detachable structure, the filter screen can be removed or installed without the need for external tools. It can be completed manually, making it convenient to use. Attached Figure Description
[0025] Figure 1 This is a structural schematic diagram of a stainless steel water tank cover and water tank according to an embodiment of this application;
[0026] Figure 2 for Figure 1 A schematic cross-sectional view along the AA direction;
[0027] Figure 3 The overflow prevention structure, protective shell, and cover plate in the embodiments of this application are as follows: Figure 1 A schematic diagram of the cross-sectional structure along the BB direction;
[0028] Figure 4 for Figure 3 Enlarged structural diagram at point C;
[0029] Figure 5 for Figure 1 Enlarged structural diagram at point D;
[0030] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure along the EE direction.
[0031] Figure Labels
[0032] 1-Cover plate, 2-Inlet, 3-Inlet cover, 4-Opening / closing rod, 41-Slot, 5-Fixing structure, 51-Threaded rod, 52-Rotating block, 53-Threaded hole, 54-Rotating part, 6-Sealing ring, 71-Box body, 72-Outlet, 73-Mounting bracket, 8-Overflow prevention structure, 81-Lever, 82-Floating ball, 83-Counterweight, 84-Limit switch, 85-Sliding groove, 86-Sliding block, 87-Adjusting structure, 871- Adjusting motor, 872-lead screw, 873-gear number one, 874-gear number two, 88-protective shell, 89-observation window, 9-detachable structure, 91-unlocking component, 911-rotating handle, 912-rotating shaft, 913-unlocking block, 92-elastic locking component, 921-spring, 922-locking block, 923-moving plate, 924-moving groove, 925-locking groove, 93-mounting block, 94-mounting groove, 10-filter screen. Detailed Implementation
[0033] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0034] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0035] The following description, in conjunction with the accompanying drawings, details a stainless steel water tank cover and water tank provided in this application through specific embodiments and application scenarios.
[0036] Example 1:
[0037] like Figure 1 and Figure 2As shown, this application embodiment provides a stainless steel water tank cover, including a cover plate 1, a water inlet 2 and a water inlet cover 3; it also includes an opening and closing rod 4, the middle part of which is fixedly connected to the top of the water inlet cover 3. One end of the opening and closing rod 4 is rotatably mounted on the cover plate 1, and the other end is provided with a slot 41, and can be mounted on the cover plate 1 through a fixing structure 5.
[0038] Furthermore, the fixing structure 5 includes a threaded rod 51 and a rotating block 52. One end of the threaded rod 51 is rotatably mounted on the cover plate 1, and the other end is threadedly connected to a threaded hole 53 at the bottom end of the rotating block 52. The top side wall of the rotating block 52 is provided with a rotating part 54 for easy rotation. The threaded rod 51 can slide into the slot 41 and is pressed against the top of the opening and closing rod 4 at the end with the slot 41 by the rotating block 52, thereby achieving fixation.
[0039] Furthermore, a sealing ring 6 is provided on the water inlet cover 3.
[0040] In this embodiment of the application, due to the above-described structure, when it is necessary to open the water inlet cover 3, the rotating part 54 can be rotated. Since the threaded rod 51 is threadedly connected to the threaded hole 53 at the bottom of the rotating block 52, the rotation of the rotating block 52 will cause it to move upward, and the bottom of the rotating block 52 will separate from the opening and closing rod 4. After rotating a certain number of times, the threaded rod 51 can be rotated to slide out of the slot 41. At this time, by pulling the opening and closing rod 4, the water inlet cover 3 can be separated from the water inlet. When it is necessary to close the water inlet cover 3 again, the opening and closing rod 4 can be pulled, and the opening and closing rod 4 will cause the water inlet cover 3 to be placed back on the top of the water inlet 2. Then, the threaded rod 51 can be rotated to make it slide back into the slot 41. Rotating the rotating part 54 in the opposite direction, since the threaded rod 51 is threadedly connected to the threaded hole 53 at the bottom of the rotating block 52, the rotation of the rotating block 52 will cause it to move downward, so that the bottom of the rotating block 52 presses against the top of the end of the opening and closing rod 4 with the slot 41, thereby achieving fixation.
[0041] The water inlet cover 3 is equipped with a sealing ring 6, which serves to seal the water.
[0042] Example 2:
[0043] like Figure 1 , Figure 3 and Figure 4As shown in the embodiment, this application also discloses a water tank suitable for the aforementioned stainless steel water tank cover, including a tank body 71 and a water outlet 72. A cover plate 1 is fixedly connected to the top of the tank body 71, and a mounting bracket 73 is fixedly provided on the cover plate 1. An anti-overflow structure 8 is provided on the mounting bracket 73 to prevent liquid from overflowing from the tank body 71. The anti-overflow structure 8 includes a lever 81, a floating ball 82, a counterweight 83, and a limit switch 84. A floating ball 82 is connected to one end of the lever 81, and a counterweight 83 is provided at the other end. A limit switch 84 is fixedly installed on the mounting bracket 73. The input end of the limit switch 84 is located directly above the end of the lever 81 connected to the floating ball 82. When the liquid level in the tank 71 reaches the threshold, the floating ball 82 is driven by buoyancy to rotate the lever 81, which triggers the limit switch 84. The mounting bracket 73 is provided with a sliding groove 85. A sliding block 86 is rotatably connected to the middle of the lever 81. The sliding block 86 is slidably installed in the sliding groove 85. The lever 81 can be driven to slide along the sliding groove 85 by adjusting the structure 87.
[0044] Furthermore, the adjustment structure 87 includes an adjustment motor 871 and a lead screw 872. The lead screw 872 is rotatably installed in the sliding groove 85 and is threadedly connected to the sliding block 86. A first gear 873 is fixedly connected to the lead screw 872. The adjustment motor 871 is fixedly installed at the top of the cover plate 1. The output shaft of the adjustment motor 871 extends into the sliding groove 85 and is fixedly connected to a second gear 874. The second gear 874 meshes with the first gear 873.
[0045] Furthermore, a protective shell 88 is provided at the top of the cover plate 1, and the mounting bracket 73 and the anti-overflow structure 8 are both inside the protective shell 88.
[0046] Furthermore, the protective shell 88 is provided with an observation window 89.
[0047] In this embodiment of the application, due to the above-mentioned structure, a cover plate 1 is fixedly connected to the top of the box 71, and a water outlet 72 is provided on the side wall of the box 71. When the liquid level in the box 71 rises, the floating ball 82 rises together under the action of liquid buoyancy, which causes the end of the lever 81 connected to the floating ball 82 to tilt up and contact the input end of the limit switch 84. The liquid level in the box 71 then rises until the liquid level reaches the threshold. The end of the lever 81 connected to the floating ball 82 will push the input end of the limit switch 84 to rotate and trigger the limit switch 84. After the limit switch 84 is triggered, it can control the water pump to start and suck the liquid in the box 71. The buzzer will remind the operator. When the liquid in the box 71 is sucked out, the floating ball 82 will fall back down under the action of gravity and release the trigger of the limit switch 84, achieving the effect of reset.
[0048] When the regulating motor 871 is started, it will drive the second gear 874 to rotate. The rotation of the second gear 874 will drive the first gear 873 to rotate, which in turn will drive the lead screw 872 to rotate. Since the lead screw 872 is threadedly connected to the sliding block 86, the rotation of the lead screw 872 can drive the sliding block 86 to slide up and down along the sliding groove 85, thereby changing the height position of the lever 81. This allows the threshold to be adjusted according to the actual situation, making it more applicable.
[0049] The top of the cover plate 1 is provided with a protective shell 88. The mounting bracket 73 and the anti-overflow structure 8 are both inside the protective shell 88. The protective shell 88 serves to protect the mounting bracket 73 and the anti-overflow structure 8. The protective shell 88 is provided with an observation window 89, which allows the operator to clearly observe the internal condition of the protective shell 88.
[0050] Example 3:
[0051] like Figure 5 and Figure 6 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, a filter screen 10 is installed at the water outlet 72 via a detachable structure 9. The detachable structure 9 includes an unlocking member 91 and a pair of elastic locking members 92. An installation block 93 is fixedly connected to the outer end of the water outlet 72. The installation block 93 has an installation groove 94 that communicates with the water outlet 72. The filter screen 10 is slidably installed in the installation groove 94. The installation block 93 has a pair of symmetrical elastic locking members 92 and unlocking members 91. The pair of elastic locking members 92 are used to fix the filter screen 10 in the current position, and the unlocking members 91 are used to release the pair of elastic locking members 92 from fixing the filter screen 10.
[0052] Furthermore, the unlocking component 91 includes a rotating handle 911, a rotating shaft 912, and an unlocking block 913. The rotating shaft 912 is rotatably installed inside the mounting block 93. One end of the rotating shaft 912 extends out of the mounting block 93 and is fixedly connected to the rotating handle 911. The unlocking block 913 is fixedly sleeved on the outer side of the other end. The unlocking block 913 is elliptical in shape.
[0053] Furthermore, each of the elastic locking components 92 includes a spring 921, a locking block 922, and a movable plate 923. The mounting block 93 has a movable groove 924 that communicates with the mounting groove 94. The movable plate 923 is slidably installed in the movable groove 924. One end of the spring 921 is pressed and fixed to the movable plate 923, and the other end is pressed and fixed to the mounting block 93. The end of the movable plate 923 facing the filter screen 10 has a locking block 922. The filter screen 10 has a locking groove 925 corresponding to the locking block 922. The locking block 922 is inserted into the locking groove 925. The unlocking block 913 is located between a pair of movable plates 923, and both of the movable plates 923 abut against the unlocking block 913.
[0054] In this embodiment of the application, due to the above-described structure, after the filter screen 10 has been used for a period of time, the operator can rotate the handle 911. Rotating the handle 911 causes the rotating shaft 912 and the unlocking block 913 to rotate synchronously. The rotation of the unlocking block 913 will push a pair of movable plates 923 away from each other, causing the locking block 922 to disengage from the corresponding locking groove 925, thereby releasing the fixation of the filter screen 10. The filter screen 10 can then be removed and a new filter screen 10 can be reinserted. Releasing the handle 911 causes the pair of movable plates 923 to move closer to each other under the action of the corresponding spring 921, causing the unlocking block 913 and the handle 911 to reset. At the same time, the locking block 922 is reinserted into the corresponding locking groove 925, thus completing the replacement.
[0055] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0056] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A water tank comprising a tank body and a water outlet, characterized by, The box top is fixedly connected with a cover plate, the cover plate is fixedly provided with a mounting frame, the mounting frame is provided with an anti-overflow structure, the anti-overflow structure is used for avoiding liquid overflow in the box, the anti-overflow structure comprises a lever, a floating ball, a counterweight and a travel switch, the floating ball is connected to one end of the lever, the other end is provided with the counterweight, the travel switch is fixedly installed on the mounting frame, and an input end of the travel switch is located directly above the end of the lever connected with the floating ball; when the liquid level in the box reaches a threshold value, the floating ball is driven by the buoyancy to rotate the lever, so that the lever touches the travel switch; The mounting frame is provided with a sliding groove, the middle part of the lever is rotatably connected with a sliding block, and the sliding block is slidingly installed in the sliding groove; and the adjusting structure can drive the lever to slide along the sliding groove.
2. A water tank according to claim 1, characterized in that The adjusting structure comprises an adjusting motor and a lead screw, the lead screw is rotatably installed in the sliding groove, the lead screw is in threaded connection with the sliding block, the lead screw is fixedly connected with a first gear, the top of the cover plate is fixedly provided with the adjusting motor, an output shaft of the adjusting motor extends into the sliding groove and is fixedly connected with a second gear, and the second gear is in meshing connection with the first gear.
3. A water tank according to claim 1, wherein The top of the cover plate is provided with a protection shell, and the mounting frame and the anti-overflow structure are located in the protection shell.
4. A water tank according to claim 3, wherein The protection shell is provided with an observation window.
5. A water tank according to claim 1, wherein The water outlet is provided with a filter screen through a detachable structure, the detachable structure comprises an unlocking piece and a pair of elastic locking pieces, the water outlet is fixedly connected with a mounting block, the mounting block is provided with a mounting groove in communication with the water outlet, the filter screen is slidingly installed in the mounting groove, the mounting block is provided with a pair of symmetrical elastic locking pieces and an unlocking piece, the pair of elastic locking pieces are used for fixing the filter screen at the current position, and the unlocking piece is used for releasing the fixing of the filter screen by the pair of elastic locking pieces.
Citation Information
Patent Citations
Rotary water tank
CN222777917U