A hidden water tank drain pipe fixing structure and a hidden water tank structure

By employing a pipe fitting fixing bracket and snap-fit ​​limiting structure in the concealed water tank, the problem of insufficient fixing strength of the drain pipe is solved, achieving stable installation and cost savings.

CN224549272UActive Publication Date: 2026-07-24XIAMEN R&T PLUMBING TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN R&T PLUMBING TECH
Filing Date
2025-06-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing method of fixing the drain pipe of the concealed water tank has the risk of damage due to insufficient strength, and the subsequent welding of the fixing plate increases the installation cost.

Method used

The pipe fitting fixing bracket is detachably or integrally connected to the fixed iron frame, and the drain pipe is detachably installed on the pipe fitting fixing bracket. The clamping limit structure and guide part are used to achieve stable support, avoiding cutting, grooving and welding of the fixing plate.

Benefits of technology

It reduces the risk and cost of installation damage, ensures that the drain pipe is installed firmly and has a simple structure, making installation convenient.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of drainpipe fixing structure of hidden water tank, comprising: fixed iron stand, drainpipe and pipe fitting fixing frame, the pipe fitting fixing frame is detachably or integrally connected and fixed in fixed iron stand, the drainpipe is detachably installed on pipe fitting fixing frame, the fixed iron stand has through-hole, and one end port of the drainpipe is located in through-hole;The utility model further discloses a kind of hidden water tank structure, including water tank body and the drainpipe fixing structure of hidden water tank of the utility model, and the other end port of the drainpipe is sealedly connected the drain outlet of water tank body;The utility model utilizes pipe fitting fixing frame to give drainpipe firm support, so that drainpipe is installed firm, the pipe fitting fixing frame is not easy to damage in installation process, and it is also not easy to damage in subsequent use, to achieve the purpose of reducing installation damage risk and installation cost, and the utility model whole structure is simple and easy to install.
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Description

Technical Field

[0001] This utility model relates to the field of sanitary ware technology, and in particular to a drain pipe fixing structure and a concealed water tank structure for a concealed water tank. Background Technology

[0002] Concealed cisterns arose to optimize bathroom space, enhance aesthetics, and meet water conservation requirements. The method of fixing the drain pipe is crucial for the installation stability of concealed toilets. Currently available drain pipe fixing methods include: cutting grooves into the crossbeams of the concealed cistern's mounting frame, inserting the bends of the drain pipe into the grooves, forming fixing plates in the grooves through bending or subsequent welding, and inserting ribs into the drain pipe to fix it in the fixing plates, as illustrated in Chinese Patent No.: CN201520418267.2.

[0003] The fixing strength of the above-mentioned drainage pipe fixing method depends on the strength of the ribs and the fixing plate. In actual installation and fixing, there is a risk of damage due to insufficient strength. Furthermore, if the fixing plate is welded and formed in the later stage, the installation cost will increase.

[0004] In view of this, the designer of this utility model developed this utility model. Utility Model Content

[0005] The purpose of this utility model is to provide a drain pipe fixing structure and a concealed water tank structure for a concealed water tank, which can reduce the risk of installation damage and installation costs.

[0006] To achieve the above objectives, the present invention adopts the following solution:

[0007] A drain pipe fixing structure for a concealed water tank includes: a fixed iron frame, a drain pipe, and a pipe fitting fixing bracket. The pipe fitting fixing bracket is detachably or integrally fixed to the fixed iron frame. The drain pipe is detachably installed on the pipe fitting fixing bracket. The fixed iron frame has a through hole, and one end of the drain pipe is located opposite the through hole.

[0008] In some embodiments, the drain pipe is detachably installed on the pipe fitting bracket via a snap-fit ​​limiting structure.

[0009] In some embodiments, the pipe fitting bracket includes a fixing cavity, an installation inlet, and a first stop portion. The drain pipe has a bend portion that enters the fixing cavity through the installation inlet and is stopped and limited by the first stop portion.

[0010] In some embodiments, the snap-fit ​​limiting structure includes a snap-fit ​​portion disposed on the drain pipe and a limiting portion disposed on the pipe fitting fixing bracket. The limiting portion is disposed between the installation inlet and the first stop portion. The snap-fit ​​portion snaps into the limiting portion and the first stop portion. The first stop portion and the limiting portion cooperate to limit the snap-fit ​​portion in a first direction, thereby limiting the drain pipe to the installation position of the fixing cavity.

[0011] In some embodiments, the snap-fit ​​limiting structure further includes a guide portion disposed on the drain pipe, and the pipe fitting fixing bracket forms a second stop portion, which limits the guide portion in a second direction, wherein the first direction intersects the second direction.

[0012] In some embodiments, the second stop is located above the fixing cavity, the installation inlet is located in front of the fixing cavity, the first stop is located behind the fixing cavity, and when the snap-fit ​​part is engaged between the limiting part and the first stop, both the snap-fit ​​part and the guide part are located below the second stop, and the first direction is perpendicular to the second direction.

[0013] In some embodiments, the snap-fit ​​part is a rib provided on the drain pipe, the limiting part is a spring buckle provided corresponding to the snap-fit ​​part, the spring buckle is "Z" shaped, one end of the spring buckle is connected to the wall of the fixed cavity, and the other end is used to prevent the snap-fit ​​part from coming out of the fixed cavity installation position, and the distance between the limiting part and the first stop part is adapted to the thickness of the snap-fit ​​part.

[0014] In some embodiments, the first stop is the cavity wall of the fixed cavity, and the pipe fitting fixing bracket is detachably fixed to the fixed iron frame by locking or by snap-fitting.

[0015] In some embodiments, the gap between the second stop and the limiting part forms a guide groove corresponding to the position of the guide part, the guide part is engaged in the guide groove and can slide along the guide groove.

[0016] A concealed water tank structure includes a water tank body and a drain pipe fixing structure for the concealed water tank, wherein the other end of the drain pipe is sealed and connected to the drain outlet of the water tank body.

[0017] As can be seen from the above technical solution, this utility model has a structural design in which the pipe fitting fixing bracket is detachably or integrally fixed to the fixed iron frame, and the drain pipe is detachably installed on the pipe fitting fixing bracket. The pipe fitting fixing bracket provides stable support for the drain pipe, making the drain pipe firmly installed. The pipe fitting fixing bracket is not easily damaged during installation and is not easily damaged in subsequent use, thereby reducing the risk of installation damage and installation cost. Moreover, the overall structure of this utility model is simple and easy to install. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0019] Figure 1 This is an exploded view of Embodiment 1 of the concealed water tank drainage pipe fixing structure of this utility model.

[0020] Figure 2 This is a schematic diagram showing the completed installation of Embodiment 1 of the concealed water tank drain pipe fixing structure of this utility model.

[0021] Figure 3 This is a cross-sectional view (1) of the first embodiment of the drain pipe fixing structure of the concealed water tank of this utility model.

[0022] Figure 4 This is a cross-sectional view (2) of the first embodiment of the drain pipe fixing structure of the concealed water tank of this utility model.

[0023] Figure 5 This is an exploded view of Embodiment 2 of the concealed water tank drainage pipe fixing structure of this utility model.

[0024] Figure 6 This is a schematic diagram showing the completed installation of Embodiment 2 of the concealed water tank drain pipe fixing structure of this utility model.

[0025] Figure 7 This is a cross-sectional view of Embodiment 2 of the concealed water tank drainage pipe fixing structure of this utility model.

[0026] Figure 8 This is a perspective view of the drainage pipe and fitting fixing bracket of this utility model after installation.

[0027] Figure 9 for Figure 8 The main view.

[0028] Figure 10 This is a perspective view of the drainage pipe of this utility model.

[0029] Figure 11 for Figure 10 The main view.

[0030] Figure 12 This is a perspective view of the pipe fitting fixing bracket of this utility model.

[0031] Figure 13 for Figure 12 The main view.

[0032] The reference numerals in the attached figures are explained as follows:

[0033] Fixed iron frame 1

[0034] Through hole 11, through hole 12, bayonet 13

[0035] Drain pipe 2

[0036] Bending section 21 First rib 23

[0037] Second reinforcing bar 24 Third reinforcing bar 25

[0038] Pipe Fitting Fixture 3

[0039] Fixed cavity 31 Installation inlet 32 ​​First stop 33

[0040] First guide groove 311, third guide groove 312, notch 313

[0041] Limiting part 34 Second stop part 35 Elastic fastener 36

[0042] Inclined guide surface 341

[0043] Screw 4. Detailed Implementation

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0045] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0046] Reference Figures 1-13As shown, this utility model discloses a drain pipe fixing structure for a concealed water tank, including: a fixed iron frame 1, a drain pipe 2, and a pipe fitting fixing bracket 3. The pipe fitting fixing bracket 3 is detachably or integrally fixed to the fixed iron frame 1. The drain pipe 2 is detachably installed on the pipe fitting fixing bracket 3. The fixed iron frame 1 has a through hole 11, and one end of the drain pipe 2 is located opposite the through hole 11. The pipe fitting fixing bracket 3 is detachably or integrally fixed to the fixed iron frame 1. The integral connection can be achieved by welding or other methods to fix the pipe fitting fixing bracket 3 to the fixed iron frame 1. In this embodiment, the pipe fitting fixing bracket 3 is detachably fixed to the fixed iron frame 1.

[0047] Therefore, this utility model features a structural design in which the pipe fitting fixing bracket 3 is detachably fixed to the fixed iron frame 1, and the drain pipe 2 is detachably installed on the pipe fitting fixing bracket 3. The pipe fitting fixing bracket 3 provides stable support for the drain pipe 2, making the drain pipe 2 securely installed. The pipe fitting fixing bracket 3 is not easily damaged during installation or subsequent use, thereby reducing the risk of installation damage. Furthermore, the overall structure of this utility model is simple and easy to install. The pipe fitting fixing bracket 3 is detachably fixed to the fixed iron frame 1, eliminating the need to cut grooves in the fixed iron frame and form fixing pieces by bending or subsequent welding on the grooves. This saves processing costs and reduces damage to the strength of the fixed iron frame, ensuring the reliable strength of the fixed iron frame.

[0048] In some embodiments, the drain pipe 2 is detachably installed on the pipe fitting bracket 3 through a snap-fit ​​limiting structure, but this is not a limitation. The drain pipe 2 can also be installed on the pipe fitting bracket 3 through other detachable structures, such as locking or insertion.

[0049] In some embodiments, the pipe fitting fixing bracket 3 includes a fixing cavity 31, an installation inlet 32, and a first stop 33. The drain pipe 2 has a bend 21, which enters the fixing cavity 31 through the installation inlet 32 ​​and is stopped and limited by the first stop 33, so that the bend 21 is locked in the fixing cavity 31. Thus, the installation position of the drain pipe 2 in the fixing cavity 31 is restricted by the setting of the first stop 33.

[0050] In this embodiment, the first stop 33 is the cavity wall of the fixed cavity 31.

[0051] For example, the snap-fit ​​limiting structure may include a snap-fit ​​part on the drain pipe 2 and a limiting part 34 on the pipe fitting fixing bracket 3. The limiting part 34 is located between the installation inlet 32 ​​and the first stop part 33. The snap-fit ​​part snaps into the limiting part 34 and the first stop part 33. The first stop part 33 and the limiting part 34 cooperate to limit the snap-fit ​​part in a first direction. The snap-fit ​​part is located between the limiting part 34 and the first stop part 33. By setting the limiting part 34, the drain pipe 2 is prevented from coming out of the fixing cavity 31 between the limiting part 34 and the first stop part 33, thereby limiting the drain pipe 2 to a preset installation position in the fixing cavity 31.

[0052] In some embodiments, the snap-fit ​​limiting structure further includes a guide portion disposed on the drain pipe 2. A second stop portion 35 is formed on the top of the pipe fitting fixing bracket 3. The second stop portion 35 limits the guide portion in a second direction, where the first direction intersects the second direction. Specifically, in this embodiment, the second stop portion 35 is disposed above the fixing cavity 31, the installation inlet 32 ​​is located in front of the fixing cavity 31, and the first stop portion 33 is located behind the fixing cavity 31. When the snap-fit ​​portion is engaged between the limiting portion 34 and the first stop portion 33, both the snap-fit ​​portion and the guide portion are located below the second stop portion 35.

[0053] In this embodiment, the first direction can be a front-back direction and the second direction can be a top-bottom direction; however, it is not limited to this, and it can also be that the first direction can be a top-bottom direction and the second direction can be a front-back direction, as long as the first direction and the second direction intersect.

[0054] In some embodiments, in order to improve the installation firmness of the present invention, the second stop 35 is disposed above the first stop 33, and limits the drain pipe 2 in the second direction. The snap-fit ​​part is disposed below the second stop 35, and the first direction is perpendicular to the second direction.

[0055] In this embodiment, the snap-fit ​​part is a rib provided on the drain pipe 2, specifically the second rib 24. The limiting part 34 is a spring-loaded buckle corresponding to the snap-fit ​​part. The spring-loaded buckle is Z-shaped, with one end connected to the wall of the fixing cavity 31 and the other end used to prevent the snap-fit ​​part from dislodging from the installation position of the fixing cavity 31. The distance between the limiting part 34 and the first stop part 33 is adapted to the thickness of the snap-fit ​​part. This distance can be slightly greater than the thickness of the snap-fit ​​part, i.e., the thickness of the second rib 24, so that the drain pipe 2 can be stably positioned in the installation position of the fixing cavity 31.

[0056] To facilitate quick installation, the limiting part 34 has an inclined guide surface 341 on the side facing the drain pipe 2, so that the snap-fit ​​part can quickly move between the limiting part 34 and the first stop part 33 to achieve quick installation.

[0057] In some embodiments, a guide portion is formed on the drain pipe 2, and a guide groove is provided at a corresponding position on the pipe fitting fixing bracket 3. The guide portion is engaged in the guide groove and can slide along the guide groove.

[0058] In this embodiment, the gap between the second stop portion 35 and the limiting portion 34 forms a guide groove corresponding to the position of the guide portion. The guide portion is engaged in the guide groove and can slide along the guide groove.

[0059] In this embodiment, the guide portion includes a first rib 23 formed on the side wall of the outer wall of the drain pipe 2, and a first guide groove 311 is provided in the fixing cavity 31 corresponding to the position of the first rib 23. The end of the first rib 23 is engaged in the first guide groove 311 and can slide along the first guide groove 311. The guide portion also includes a third rib 25 formed on the bottom wall of the outer wall of the drain pipe 2, and a third guide groove 312 is provided in the fixing cavity 31 corresponding to the position of the third rib 25. The third rib 25 is engaged in the third guide groove 312 and can slide along the third guide groove 312.

[0060] In this embodiment, a second rib 24 is provided below the first rib 23, and the first rib 23 and the second rib 24 are arranged vertically, which makes the arrangement of the ribs of the drainage pipe more compact.

[0061] Furthermore, a notch 13 is formed on the side of the fixed iron frame 1 facing the drain pipe 2, and the notch 13 can be used to avoid the drain pipe when the diameter is large.

[0062] The top of the fixing cavity 31 has a notch 313, and the bent part 21 is inserted into the notch 313, thereby making the overall structure of this utility model more robust.

[0063] In some embodiments, the pipe fitting fixing bracket 3 is detachably fixed to the fixing iron frame 1 by locking or by snap-fitting.

[0064] like Figures 1 to 4 As shown, in Embodiment 1 of the concealed water tank drain pipe fixing structure of this utility model, the fixing iron frame 1 and the pipe fixing component are fixed by screws 4 passing through them to achieve locking, as shown. Figures 5 to 7As shown in Embodiment 2 of the concealed water tank drainage pipe fixing structure of this utility model, the pipe fixing bracket 3 has at least two spaced elastic buckle members 36 protruding from the surface facing the fixing iron frame 1. The fixing iron frame 1 has at least two through holes 12. The elastic buckle members 36 pass through the through holes 12 one by one. After the elastic buckle members 36 pass through the through holes 12, the elastic buckle members 36 elastically open and snap onto the surface of the fixing iron frame 1 away from the pipe fixing bracket 3, thereby achieving a snap-fit ​​fixation. The ends of the elastic buckle members 36 can be two separate and elastic halves.

[0065] This utility model also discloses a concealed water tank structure, including a water tank body and a drain pipe fixing structure of the above-mentioned concealed water tank, wherein the other end of the drain pipe 2 is sealed and connected to the drain outlet of the water tank body.

[0066] In summary, the installation process of the drain pipe 2 and the fitting bracket 3 is as follows: When the drain pipe 2 is installed along the installation direction, after the first rib 23 is aligned with the first guide groove 311 and the third rib 25 is aligned with the third guide groove 312, the drain pipe 2 is pushed inward. The first rib 23 and the third rib 25 can play a guiding and positioning role during installation. When not locked in place, the second rib 24 is located in front of the limiting part 34. After being locked in place, the second rib 24 passes over the limiting part 34 and is locked between the first stop part 33 and the limiting part 34 (that is, the locking part at the end of the second rib 24 is locked between the first stop part 33 and the limiting part 34). When disassembling the drain pipe 2 and the fitting bracket 3, the limiting part 34 can be pried outward by manpower, and the drain pipe 2 can be removed.

[0067] It should be understood that the various examples described above can be utilized in multiple directions, such as tilted, inverted, horizontal, vertical, etc., and in multiple configurations, without departing from the principles of this invention. The embodiments shown in the accompanying drawings are merely examples of effective application of the principles of this invention, and this invention is not limited to any specific details of these embodiments.

[0068] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A drain pipe fixing structure for a concealed water tank, characterized in that, include: A fixed iron frame, a drain pipe and a pipe fitting fixing frame are provided. The pipe fitting fixing frame is detachably or integrally fixed to the fixed iron frame. The drain pipe is detachably installed on the pipe fitting fixing frame. The fixed iron frame has a through hole, and one end of the drain pipe is located opposite the through hole.

2. The drain pipe fixing structure of a concealed water tank as described in claim 1, characterized in that: The drain pipe is detachably installed on the pipe fitting bracket through a snap-fit ​​limiting structure.

3. The drain pipe fixing structure of a concealed water tank as described in claim 2, characterized in that: The pipe fitting fixing bracket includes a fixing cavity, an installation inlet and a first stop. The drain pipe has a bend, which enters the fixing cavity through the installation inlet and is stopped and limited by the first stop.

4. The drain pipe fixing structure of a concealed water tank as described in claim 3, characterized in that: The snap-fit ​​limiting structure includes a snap-fit ​​part on the drain pipe and a limiting part on the pipe fitting fixing bracket. The limiting part is located between the installation inlet and the first stop part. The snap-fit ​​part snaps into the limiting part and the first stop part. The first stop part and the limiting part cooperate to limit the snap-fit ​​part in a first direction, thus limiting the drain pipe to the installation position of the fixing cavity.

5. The drain pipe fixing structure of a concealed water tank as described in claim 4, characterized in that: The snap-fit ​​limiting structure also includes a guide portion, which is disposed on the drain pipe. The pipe fitting fixing bracket has a second stop portion, which limits the guide portion in a second direction. The first direction and the second direction intersect.

6. The drain pipe fixing structure of a concealed water tank as described in claim 5, characterized in that: The second stop is located above the fixed cavity, the installation inlet is located in front of the fixed cavity, the first stop is located behind the fixed cavity, and when the snap-fit ​​part is engaged between the limiting part and the first stop, both the snap-fit ​​part and the guide part are located below the second stop, and the first direction is perpendicular to the second direction.

7. The drain pipe fixing structure of a concealed water tank as described in claim 4, characterized in that: The snap-fit ​​part is a rib provided on the drain pipe, and the limiting part is a spring buckle provided corresponding to the snap-fit ​​part. The spring buckle is "Z" shaped, with one end connected to the wall of the fixed cavity and the other end used to prevent the snap-fit ​​part from coming out of the fixed cavity installation position. The distance between the limiting part and the first stop part is adapted to the thickness of the snap-fit ​​part.

8. The drain pipe fixing structure of a concealed water tank as described in any one of claims 3 to 7, characterized in that: The first stop is the cavity wall of the fixed cavity, and the pipe fitting fixing bracket is detachably fixed to the fixed iron frame by locking or by buckling.

9. The drain pipe fixing structure of a concealed water tank as described in claim 5, characterized in that: The gap between the second stop and the limiting part forms a guide groove corresponding to the position of the guide part. The guide part is engaged in the guide groove and can slide along the guide groove.

10. A concealed water tank structure, characterized in that: The system includes a water tank body and a drain pipe fixing structure for a concealed water tank as described in any one of claims 1 to 9, wherein the other end of the drain pipe is sealed to the drain outlet of the water tank body.

Citation Information

Patent Citations

  • Fast -assembling quick detach mechanism of water tank

    CN204703255U