Closestool water tank device

Abstract

The utility model discloses a closestool water tank device which comprises a water tank and a water inlet valve, and a water tank window is installed on the top or the front side of the water tank. A guide rail is arranged on the bottom face of the top cover of the water tank and located on one side of the water tank window. The water inlet valve is connected with a sliding frame capable of being in sliding fit with the guide rail. When the water inlet valve needs to be installed, the water inlet valve with the sliding frame is placed into the water tank from the water tank window, then the sliding frame is matched with the guide rail, and then the water inlet valve is pushed in place. When the water inlet valve needs to be disassembled, the water inlet valve is pulled towards the window side of the water tank, and the water inlet valve can be taken out after the sliding frame is separated from the guide rail. According to the closestool water tank device, the traditional mode that the water inlet valve is fixed through a nut or an elastic buckle is changed, the water inlet valve is installed and fixed through the fixing mode that the guide rail is matched with the sliding frame, the difficulty of blind installation or blind disassembly of the water inlet valve is greatly reduced, disassembly and assembly operation of a user are facilitated, and the disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wall-mounted toilet water tanks, in particular to a toilet water tank device. Background Art

[0002] At present, the water inlet valves of common wall-mounted water tanks on the market are fixed inside the water tank with nuts or spring clips. However, due to the limited internal space of the wall-mounted water tank and the small window of the water tank, the human eye is blocked by the window of the water tank and cannot directly see the nuts or spring clips that fix the water inlet valve in the water tank, so it can only be installed or removed blindly. When you want to remove the water inlet valve, you must first rotate and loosen the fixing nut or press the spring clip to remove the water inlet valve from the fixed position of the water tank. When you want to install the water inlet valve, you must screw in the fixing nut or align the spring clip position in the water tank. Since the user cannot observe the specific position of the nut or spring clip from the window, the blind installation or removal method makes the disassembly and assembly of the water inlet valve more difficult, time-consuming, and inefficient. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provides a toilet water tank device, wherein a guide rail is provided at the bottom of a top cover, a sliding frame is installed on a water inlet valve, and the sliding frame is slidably connected to the guide rail, so as to facilitate disassembly and assembly operations by users.

[0004] The technical solution of the utility model provides a toilet water tank device, including a water tank and a water inlet valve;

[0005] A water tank window is installed on the top or front side of the water tank, and the water inlet valve is installed in the water tank and is located on one side of the water tank window;

[0006] Wherein, a guide rail is provided on the bottom surface of the top cover of the water tank, a sliding frame is connected to the water inlet valve, and the sliding frame is slidably connected to the guide rail.

[0007] In one of the optional technical solutions, the sliding frame includes a sliding frame body, a lower connecting end connected to the bottom of the sliding frame body, and an upper connecting end connected to the top of the sliding frame body;

[0008] The lower connecting end is provided with a slot, and the water inlet pipe of the water inlet valve is clamped in the slot;

[0009] The upper connecting end is provided with a slide groove, and the guide rail is loosely fitted in the slide groove.

[0010] In one of the optional technical solutions, a limiting convex portion is provided on the top surface of the upper connecting end, and a limiting spring piece for stopping the limiting convex portion is provided on the bottom surface of the top cover;

[0011] When the water inlet valve is installed in place, the lower end of the limiting spring piece is located on the side of the limiting protrusion facing the water tank window.

[0012] In one of the optional technical solutions, the middle of the top surface of the upper connecting end has a long strip opening connected to the slide groove and parallel to the guide rail;

[0013] The top surface of the upper connecting end is provided with two limiting protrusions, and the two limiting protrusions are arranged on opposite sides of the long strip opening;

[0014] The bottom surface of the top cover is correspondingly provided with two limiting spring sheets, and each limiting spring sheet is correspondingly matched with one limiting protrusion.

[0015] In one of the optional technical solutions, the bottom surface of the top cover is provided with a U-shaped baffle with an opening toward the water tank window side, and the guide rail is installed in a mounting groove surrounded by the U-shaped baffle.

[0016] In one of the optional technical solutions, the U-shaped baffle and the top cover are integrally formed.

[0017] In one of the optional technical solutions, a distal baffle is provided at the distal end of the guide rail away from the water tank window, and a proximal baffle is provided at the proximal end of the guide rail toward the water tank window;

[0018] The top surfaces of the distal baffle and the proximal baffle are in contact with the top cover respectively, wherein the width of the distal baffle is greater than or equal to the width of the guide rail, the width of the lower end of the proximal baffle is less than the width of the guide rail, and the lower end of the proximal baffle is provided with a baffle recess for avoiding the sliding frame.

[0019] In one of the optional technical solutions, the bottom surface of the top cover is provided with a top cover connecting sleeve extending downward, and the top surface of the guide rail is provided with a guide rail connecting sleeve extending upward, and the guide rail connecting sleeve is connected to the top cover connecting sleeve via a connecting piece.

[0020] In one of the optional technical solutions, a reinforcing plate rib is connected between the distal baffle plate and the proximal baffle plate, the bottom surface of the reinforcing plate rib is connected to the guide rail, and the guide rail connecting sleeve is connected to the reinforcing plate rib.

[0021] In one of the optional technical solutions, a boss is provided at one end of the top cover facing the water tank window, and the boss is lower than the top surface of the top cover;

[0022] A baffle flange extending toward the distal baffle side is provided on the top of the proximal baffle, and the baffle flange is overlapped on the boss.

[0023] The above technical solution has the following beneficial effects:

[0024] The toilet water tank device provided by the utility model comprises a water tank and a water inlet valve, wherein a water tank window is installed on the top or front side of the water tank. A guide rail is provided on the bottom surface of the top cover of the water tank, and the guide rail is located on one side of the water tank window. A sliding frame that can slide and cooperate with the guide rail is connected to the water inlet valve. When the water inlet valve needs to be installed, the water inlet valve with the sliding frame is placed into the water tank through the water tank window, and then the sliding frame is matched with the guide rail, and then the water inlet valve is pushed into place. When the water inlet valve needs to be removed, the water inlet valve is pulled toward the water tank window side, and the water inlet valve can be taken out after the sliding frame is separated from the guide rail.

[0025] The toilet water tank device provided by the utility model changes the traditional method of fixing the water inlet valve with nuts or spring clips, and adopts a fixing method of a guide rail and a sliding frame to install and fix the water inlet valve, which greatly reduces the difficulty of blind installation or blind removal of the water inlet valve, facilitates the user's disassembly and assembly operations, and improves the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0027] Figure 1 A three-dimensional diagram of a toilet water tank device provided in one embodiment of the utility model;

[0028] Figure 2 An exploded view of a toilet tank device provided in one embodiment of the utility model;

[0029] Figure 3 This is the exploded view of the water inlet valve and water tank;

[0030] Figure 4 A three-dimensional diagram of a sliding frame connected to a water inlet valve;

[0031] Figure 5 A perspective view of a sliding frame;

[0032] Figure 6 This is the exploded view of the water tank;

[0033] Figure 7 is a three-dimensional diagram of the guide rail;

[0034] Figure 8 This is an exploded view of the guide rail and the water tank top cover;

[0035] Fig. 9 is a three-dimensional diagram of a water tank top cover;

[0036] Fig.10 A cross-sectional view of the sliding frame, guide rails and water tank top cover that fit together;

[0037] Fig.11This is a schematic diagram of the water inlet valve when it is installed. DETAILED DESCRIPTION

[0038] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings. The same parts are represented by the same figure numbers. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0039] like Figure 1-8 and Figure 10-11 As shown, a toilet water tank device provided by an embodiment of the utility model includes a water tank 1 and a water inlet valve 2.

[0040] A water tank window 11 is installed on the top or front side of the water tank 1 , and the water inlet valve 2 is installed in the water tank 1 and is located on one side of the water tank window 11 .

[0041] The bottom surface of the top cover 12 of the water tank 1 is provided with a guide rail 3 , and the water inlet valve 2 is connected with a sliding frame 4 , which is slidably connected to the guide rail 3 .

[0042] The toilet water tank device provided by the utility model is the water tank part of the toilet.

[0043] The toilet water tank device comprises a water tank 1 and a water inlet valve 2. The top of the water tank 1 is provided with a top cover 12, which is installed on the top of the main body of the water tank 1. A water tank window 11 is provided at a substantially middle position of the top area of ​​the water tank 1, which is used to lead out pipes, etc., and is also used to install accessories in the water tank 1, such as installing the water inlet valve 2. The water tank window 11 can be arranged on the top surface of the water tank 1, and can also be arranged on the front side of the water tank 1.

[0044] The bottom surface of the top cover 12 is provided with a guide rail 3, and the guide rail 3 is located on one side of the water tank window 11 along the width direction of the water tank 1. The width direction referred to here refers to the direction in which the water tank 1 is parallel to the wall. The guide rail 3 can be a T-shaped guide rail, an L-shaped guide rail, a guide plate, etc. The guide rail 3 is installed at the bottom of the top cover 12 using a connecting structure. The connecting structure can be a pin, a buckle, etc.

[0045] The water inlet valve 2 is pre-installed with a sliding frame 4, the lower end of the sliding frame 4 is connected to the main body of the water inlet valve 2 or the water inlet pipe 21, the upper end of the sliding frame 4 has a sliding groove or a guide hole, and the upper end of the sliding frame 4 can be slidably connected to the guide rail 3.

[0046] During installation, the water tank 1 is first embedded in the wall, and its water tank window 11 extends out of the wall. The water inlet valve 2 with the sliding frame 4 is placed into the water tank 1 through the water tank window 11, and then the water inlet valve 2 is moved so that the upper end of the sliding frame 4 cooperates with the guide rail 3, and then the water inlet valve 2 is pushed into place. Of course, as needed, a limiting structure can be set between the sliding frame 4 and the guide rail 3 to fix the water inlet valve 2 in a specified position, and a limiting groove can also be set on the side plate of the water tank 1 to limit the water inlet valve 2 installed in place.

[0047] When the water inlet valve 2 needs to be removed, the water inlet valve 2 is pulled toward the water tank window 11 to drive the sliding frame 4 to move integrally. After the sliding frame 4 is separated from the guide rail 3, the water inlet valve 2 can be taken out from the water tank window 11.

[0048] To sum up, the toilet water tank device provided by the utility model changes the traditional method of fixing the water inlet valve with nuts or spring clips, and adopts a fixing method in which the guide rail 3 and the sliding frame 4 cooperate to install and fix the water inlet valve 2, which greatly reduces the difficulty of blind installation or blind removal of the water inlet valve 2, facilitates the user's disassembly and assembly operations, and improves the disassembly and assembly efficiency.

[0049] In one embodiment, if Figure 4-5 and Figure 10-11 As shown, the sliding frame 4 includes a sliding frame body 41 , a lower connecting end 42 connected to the bottom of the sliding frame body 41 , and an upper connecting end 43 connected to the top of the sliding frame body 41 .

[0050] The lower connecting end 42 is provided with a clamping groove 421 , and the water inlet pipe 21 of the water inlet valve 2 is clamped in the clamping groove 421 .

[0051] The upper connecting end 43 is provided with a slide groove 431 , and the guide rail 3 is loosely fitted in the slide groove 431 .

[0052] In this embodiment, the sliding frame 4 includes an upper connecting end 43, a sliding frame body 41 and a lower connecting end 42 which are connected in sequence. The lower connecting end 42 is used to connect with the water inlet pipe 21 of the water inlet valve 2. The lower connecting end 42 is provided with a clamping groove 421, which is used to clamp on the water inlet pipe 21 to complete the fixation of the lower connecting end 42 and the water inlet pipe 21. The upper connecting end 43 is used to be slidably connected with the guide rail 3. The upper connecting end 43 is provided with a sliding groove 431, and the extension direction of the sliding groove 431 is parallel to the guide rail 3. The guide rail 3 is loosely fitted in the sliding groove 431, completing the sliding connection between the upper connecting end 43 and the guide rail 3.

[0053] In one embodiment, if Figure 5 and Figure 9-11 As shown, a limiting protrusion 433 is disposed on the top surface of the upper connecting end 43 , and a limiting spring piece 121 for stopping the limiting protrusion 433 is disposed on the bottom surface of the top cover 12 .

[0054] When the water inlet valve 2 is installed in place, the lower end of the limiting spring piece 121 is located at the side of the limiting protrusion 433 facing the water tank window 11 .

[0055] In this embodiment, in order to limit the installed water inlet valve 2, a combination of the limiting protrusion 433 and the limiting spring sheet 121 is adopted.

[0056] For the convenience of description, the end of a component close to the water tank window 11 is called the proximal end, and the side of a component facing the water tank window 11 is called the proximal side. The end of a component away from the water tank window 11 is called the distal end, and the side of a component facing away from the water tank window 11 is called the distal side.

[0057] The limiting protrusion 433 is disposed on the top surface of the upper connecting end 43 , and the limiting protrusion 433 is arranged close to the proximal end of the upper connecting end 43 .

[0058] The limiting spring piece 121 is connected to the bottom surface of the top cover 12 and extends downward. The limiting spring piece 121 is a plastic sheet that can be bent and deformed. The limiting spring piece 121 is also arranged near the proximal end of the top cover 12.

[0059] When assembling the water inlet valve 2, after the upper connecting end 43 is matched with the guide rail 3, the water inlet valve 2 or the sliding frame 4 is pushed toward the far side. When the limiting protrusion 433 reaches the near side of the limiting spring sheet 121, the lower end of the limiting spring sheet 121 blocks the limiting protrusion 433. The user pushes the water inlet valve 2 or the sliding frame 4 again, and the limiting protrusion 433 deforms the limiting spring sheet 121, and the limiting protrusion 433 moves to the far side of the limiting spring sheet 121, and the limiting spring sheet 121 blocks the near side of the limiting protrusion 433, preventing the sliding frame 4 from automatically sliding toward the near side on the guide rail 3, thereby playing a limiting role.

[0060] When the water inlet valve 2 needs to be removed, the water inlet valve 2 or the sliding frame 4 is pulled toward the proximal side, and the limiting protrusion 433 deforms the limiting spring sheet 121. After the limiting protrusion 433 moves to the proximal side of the limiting spring sheet 121, the water inlet valve 2 can be easily removed.

[0061] Preferably, the limiting protrusion 433 is integrally formed with the upper connection end 43, specifically by integral injection molding, which is convenient for processing and has high structural strength. The limiting spring piece 121 is integrally formed with the top cover 12, specifically by integral injection molding, which is convenient for processing and has high structural strength.

[0062] Preferably, the cross section of the limiting protrusion 433 is semicircular or arc-shaped, so that the lower end of the limiting spring sheet 121 can easily pass over the limiting protrusion 433 when the sliding frame 4 is pushed or pulled.

[0063] In one embodiment, if Figure 5 and Figure 9-11As shown, a long strip opening 432 is provided in the middle of the top surface of the upper connecting end 43 , which is connected to the slide groove 431 and parallel to the guide rail 3 .

[0064] Two limiting protrusions 433 are disposed on the top surface of the upper connecting end 43 , and the two limiting protrusions 433 are disposed on opposite sides of the long strip opening 432 .

[0065] Two limiting spring pieces 121 are correspondingly disposed on the bottom surface of the top cover 12 , and each limiting spring piece 121 is correspondingly matched with a limiting protrusion 433 .

[0066] In this embodiment, the middle of the top surface of the upper connecting end 43 has a long strip opening 432, which is connected to the slide slot 431 and parallel to the guide rail 3. The long strip opening 432 is used to avoid the connection structure between the guide rail 3 and the top cover 12, and the guide rail 3 can be designed as a T-shaped structure.

[0067] In order to improve the limiting effect, a limiting protrusion 433 is provided on the top surface of the upper connecting end 43 at the opposite sides of the long strip opening 432. Correspondingly, two limiting spring sheets 121 are provided on the bottom surface of the top cover 12. Each limiting spring sheet 121 cooperates with a limiting protrusion 433 to improve the limiting effect on the sliding frame 4.

[0068] In one embodiment, if Figure 6 and Figure 8-9 As shown, a U-shaped baffle 122 with an opening toward the water tank window 11 is provided on the bottom surface of the top cover 12 , and the guide rail 3 is installed in a mounting groove 123 surrounded by the U-shaped baffle 122 .

[0069] In this embodiment, a U-shaped baffle 122 is provided on the bottom surface of the top cover 12, and the U-shaped baffle 122 forms a mounting groove 123 on the bottom surface of the top cover 12. The opening of the U-shaped baffle 122 (the notch of the mounting groove 123) faces the water tank window 11, that is, the opening of the U-shaped baffle 122 or the notch of the mounting groove 123 is at the proximal end of the U-shaped baffle 122, which is used for the upper connecting end 43 of the sliding frame 4 to enter and exit.

[0070] The guide rail 3 is installed in the installation groove 123, and the U-shaped baffle 122 plays an isolation and protection role for the guide rail 3. The proximal end of the guide rail 3 is flush with the opening of the U-shaped baffle 122 or the notch of the installation groove 123 or slightly extends toward the proximal side so that the slide groove 431 of the upper connecting end 43 is sleeved on the guide rail 3.

[0071] In one embodiment, the U-shaped baffle 122 and the top cover 12 are integrally formed, and specifically, can be integrally injection molded, which is easy to process and has high structural strength.

[0072] In one embodiment, if Figure 7-8As shown, a distal baffle 31 is provided at the distal end of the guide rail 3 away from the water tank window 11 , and a proximal baffle 32 is provided at the proximal end of the guide rail 3 facing the water tank window 11 .

[0073] The top surfaces of the distal baffle 31 and the proximal baffle 32 are in contact with the top cover 12 respectively, wherein the width of the distal baffle 31 is greater than or equal to the width of the guide rail 3, the width of the lower end of the proximal baffle 32 is less than the width of the guide rail 3, and the lower end of the proximal baffle 32 is provided with a baffle recess 321 for avoiding the sliding frame 4.

[0074] In this embodiment, a distal baffle 31 is provided at the distal end of the guide rail 3, and a proximal baffle 32 is provided at the proximal end of the guide rail 3. After the guide rail 3 is connected to the top cover 12 through the connecting structure, the top surfaces of the distal baffle 31 and the proximal baffle 32 are in contact with the top cover 12 respectively, indicating that the guide rail 3 is installed in place, and also plays a role in stabilizing the two ends of the guide rail 3.

[0075] The distal stopper 31 can be designed to be relatively wide, at least as wide as the guide rail 3, and is used to block the upper connecting end 43 of the installed sliding frame 4 so that it cannot continue to move distally.

[0076] The width of the lower end of the proximal baffle 32 is designed to be relatively narrow, which is narrower than the width of the guide rail 3, so that baffle recesses 321 for avoiding the upper connecting end 43 of the sliding frame 4 are formed on both sides of the lower end of the proximal baffle 32. The upper connecting end 43 will not be blocked by the proximal baffle 32, so that the sliding frame 4 can be pushed to the far side. When the water inlet valve 2 is in place, the upper connecting end 43 is blocked by the distal baffle 31, indicating that it is installed in place. At this time, the limiting spring piece 121 is blocked at the proximal side of the limiting protrusion 433.

[0077] In one embodiment, if Figure 7-9 As shown, the bottom surface of the top cover 12 is provided with a top cover connecting sleeve 125 extending downward, and the top surface of the guide rail 3 is provided with a guide rail connecting sleeve 33 extending upward. The guide rail connecting sleeve 33 is connected to the top cover connecting sleeve 125 via a connecting piece 35.

[0078] In this embodiment, the bottom surface of the top cover 12 is provided with a plurality of top cover connecting sleeves 125, which extend downward. Correspondingly, the top surface of the guide rail 3 is provided with a plurality of guide rail connecting sleeves 33, which extend upward. The guide rail 3 is provided with through holes at positions corresponding to the guide rail connecting sleeves 33. The top cover connecting sleeves 125 and / or the guide rail connecting sleeves 33 are internal thread sleeves.

[0079] When installing the guide rail 3, align the guide rail connection sleeve 33 with the top cover connection sleeve 125, and pass the connection piece 35 from bottom to top through the guide rail connection sleeve 33 to connect to the top cover connection sleeve 125. The connection piece 35 can be a screw, a bolt, etc. By setting the guide rail connection sleeve 33 and the top cover connection sleeve 125, the clamping force on the connection piece 35 can be increased to prevent the guide rail 3 from falling.

[0080] In one embodiment, if Figure 7-8 As shown, a reinforcing plate rib 34 is connected between the distal baffle 31 and the proximal baffle 32, the bottom surface of the reinforcing plate rib 34 is connected to the guide rail 3, and the guide rail connecting sleeve 33 is connected to the reinforcing plate rib 34, which improves the structural strength and stability of the distal baffle 31 and the proximal baffle 32 installed on the guide rail 3, and also improves the structural strength and stability of the guide rail connecting sleeve 33 installed on the guide rail 3.

[0081] Preferably, the distal baffle 31, the proximal baffle 32, the guide rail connecting sleeve 33 and the reinforcing plate rib 34 are integrally injection-molded with the guide rail 3, which is convenient for processing and molding and has high structural strength.

[0082] In one embodiment, if Figure 7-8 and Fig.11 As shown, a boss 124 is provided at one end of the top cover 12 facing the water tank window 11 , and the boss 124 is lower than the top surface of the top cover 12 .

[0083] A baffle flange 322 extending toward the distal baffle 31 is provided at the top of the proximal baffle 32 , and the baffle flange 322 overlaps the boss 124 .

[0084] In this embodiment, in order to further improve the installation stability of the guide rail 3, a baffle flange 322 is integrally provided at the top of the proximal baffle 32, and the baffle flange 322 extends toward the distal side. A boss 124 is integrally provided at the proximal end of the top cover 12, and the boss 124 is lower than the top surface of the top cover 12. When installing the guide rail 3, the baffle flange 322 overlaps or hangs on the boss 124, which can prevent the proximal end of the guide rail 3 from falling and affecting the assembly of the sliding frame 4 and the guide rail 3.

[0085] In one embodiment, when installing the guide rail 3, the distal baffle 31 is attached to the proximal side of the U-shaped baffle 122, which means that the guide rail 3 can no longer move distally, and the guide rail 3 is in place and can be assembled using the connector 35.

[0086] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0087] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principles of the present invention, several other modifications can be made, which should also be considered as the protection scope of the present invention.

Claims

1. A toilet tank device, characterized in that: It comprises a water tank (1) and a water inlet valve (2); A water tank window (11) is installed on the top or front side of the water tank (1), and the water inlet valve (2) is installed in the water tank (1) and is located on one side of the water tank window (11); The bottom surface of the top cover (12) of the water tank (1) is provided with a guide rail (3), the water inlet valve (2) is connected with a sliding frame (4), and the sliding frame (4) is slidably connected to the guide rail (3).

2. The toilet tank device according to claim 1, characterized in that: The sliding frame (4) comprises a sliding frame body (41), a lower connecting end (42) connected to the bottom of the sliding frame body (41), and an upper connecting end (43) connected to the top of the sliding frame body (41); The lower connecting end (42) is provided with a slot (421), and the water inlet pipe (21) of the water inlet valve (2) is snap-connected in the slot (421); The upper connecting end (43) is provided with a sliding groove (431), and the guide rail (3) is loosely fitted in the sliding groove (431).

3. The toilet tank device according to claim 2, characterized in that: The top surface of the upper connecting end (43) is provided with a limiting protrusion (433), and the bottom surface of the top cover (12) is provided with a limiting spring sheet (121) for stopping the limiting protrusion (433); When the water inlet valve (2) is installed in place, the lower end of the limiting spring sheet (121) is located on the side of the limiting protrusion (433) facing the water tank window (11).

4. The toilet tank device according to claim 3, characterized in that: The middle of the top surface of the upper connecting end (43) is provided with a long strip opening (432) which is connected to the slide groove (431) and parallel to the guide rail (3); The top surface of the upper connecting end (43) is provided with two limiting protrusions (433), and the two limiting protrusions (433) are arranged on opposite sides of the long strip opening (432); The bottom surface of the top cover (12) is correspondingly provided with two limiting spring sheets (121), and each limiting spring sheet (121) is correspondingly matched with a limiting protrusion (433).

5. The toilet tank device according to any one of claims 1 to 4, characterized in that: The bottom surface of the top cover (12) is provided with a U-shaped baffle (122) with an opening facing the water tank window (11), and the guide rail (3) is installed in a mounting groove (123) surrounded by the U-shaped baffle (122).

6. The toilet tank device according to claim 5, characterized in that: The U-shaped baffle (122) and the top cover (12) are integrally formed.

7. The toilet tank device according to any one of claims 1 to 4, characterized in that: A distal baffle (31) is provided at the distal end of the guide rail (3) away from the water tank window (11), and a proximal baffle (32) is provided at the proximal end of the guide rail (3) facing the water tank window (11); The top surfaces of the distal baffle (31) and the proximal baffle (32) are in contact with the top cover (12) respectively, wherein the width of the distal baffle (31) is greater than or equal to the width of the guide rail (3), the width of the lower end of the proximal baffle (32) is less than the width of the guide rail (3), and the lower end of the proximal baffle (32) is provided with a baffle recess (321) for avoiding the sliding frame (4).

8. The toilet tank device according to claim 7, characterized in that: The bottom surface of the top cover (12) is provided with a top cover connecting sleeve (125) extending downward, and the top surface of the guide rail (3) is provided with a guide rail connecting sleeve (33) extending upward, and the guide rail connecting sleeve (33) is connected to the top cover connecting sleeve (125) via a connecting piece (35).

9. The toilet tank device according to claim 8, characterized in that: A reinforcing plate rib (34) is connected between the distal baffle plate (31) and the proximal baffle plate (32), the bottom surface of the reinforcing plate rib (34) is connected to the guide rail (3), and the guide rail connecting sleeve (33) is connected to the reinforcing plate rib (34).

10. The toilet tank device according to claim 7, characterized in that: A boss (124) is provided at one end of the top cover (12) facing the water tank window (11), and the boss (124) is lower than the top surface of the top cover (12); The top of the proximal baffle (32) is provided with a baffle flange (322) extending toward the distal baffle (31) side, and the baffle flange (322) overlaps the boss (124).

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