A linkage-integrated overflow drainage structure
The overflow and drainage are controlled synchronously by a single linkage mechanism. The design of Φ51mm drain outlet and sealing ring solves the problem of complicated assembly caused by the independent drain pipe and overflow pipe of the water tank, and realizes high-speed linear drainage and simplified maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU DISHWASHING TECH CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-21
Smart Images
Figure CN224531847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to drainage structures, and in particular to the design of an integrated overflow drainage structure with linkage for draining water tanks. Background Technology
[0002] Water tanks are used to store water. Generally, a drain pipe is connected to the bottom of the tank to drain all the water. An overflow pipe is connected to the top of the tank; when the water level reaches the overflow pipe, water flows out, preventing the water level from becoming too high. In other words, the drain pipe and overflow pipe of a typical water tank are two independent pipes. Figure 1 As shown, however, this design has the following drawbacks: it requires an independent overflow outlet, drain valve, and linkage components; the assembly of multiple components is cumbersome, and troubleshooting requires disassembling the entire machine. Utility Model Content
[0003] The purpose of this utility model is to provide an integrated overflow and drainage structure with linkage, which uses a single linkage mechanism to synchronously control the overflow and drainage functions, thereby achieving unobstructed fluid path and high-speed linear drainage.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An integrated overflow drainage structure with linkage is installed on a water tank. A drain pipe is connected to the bottom of the tank, and a fixed bracket is fixedly installed inside the tank. The fixed bracket has a handle with a connecting rod. One end of the connecting rod is fixedly connected to the handle, and the other end is connected to the main pipe. The main pipe is vertically positioned, with its lower end above the drain pipe inside the tank. The lower end of the main pipe fits snugly against the inner wall of the drain pipe. The drain outlet diameter is Φ51mm (159% increase in flow rate compared to the traditional Φ32mm). The inner wall of the drain outlet is polished to Ra≤0.8μm.
[0005] In the aforementioned integrated overflow drainage structure with linkage, the lower outer wall of the main pipe has an annular groove, and a sealing ring is provided in the annular groove, which fits against the inner wall of the drain pipe.
[0006] In the aforementioned integrated overflow drainage structure with linkage, the end of the drain pipe located below the main pipe is flared, and the end of the flared drain pipe faces the main pipe.
[0007] In the aforementioned integrated overflow drainage structure with linkage, the linkage structure includes a first linkage, a second linkage, and a third linkage. One end of the first linkage is fixedly connected to the handle, the other end of the first linkage is hinged to one end of the second linkage, the other end of the second linkage is hinged to one end of the third linkage, and the other end of the third linkage is connected to the main pipe. A foldable structure is formed between the first linkage and the second linkage.
[0008] In the aforementioned integrated overflow drainage structure with linkage, the length of the second linkage is greater than that of the first linkage, and a receiving groove is provided on the second linkage. When the first linkage and the second linkage form a folded structure, the handle is located in the receiving groove.
[0009] In the aforementioned integrated overflow drainage structure with linkage, a number of connecting plates are provided on the top of the main pipe. The connecting plates are arranged radially on the top of the main pipe. One end of the connecting plate is connected to the main pipe, and the other end of the connecting plate is fixed with a nut. The lower end of the second connecting rod is provided with a thread, and the lower end of the second connecting rod is set on the nut through the thread. There is a gap between adjacent connecting plates.
[0010] In the aforementioned integrated overflow drainage structure with linkage, the lower end of the fixed bracket has a vertical guide structure, and the upper end of the main pipe is located within the guide structure.
[0011] Compared with the prior art, this utility model adopts a single linkage mechanism to synchronously control the overflow and drainage functions, realizing an unobstructed fluid path and high-speed straight drainage. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 This is an exploded structural diagram of one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure when it is used as an overflow pipe; Figure 4 This is a schematic diagram of the structure when it is used as a drainage pipe.
[0013] Reference numerals: 1-Handle, 2-Linkage structure, 3-Fixed bracket, 4-Main pipe, 5-Drain pipe, 6-First link, 7-Receiving groove, 8-Second link, 9-Third link, 10-Guide structure, 11-Connecting plate, 12-Annular groove, 13-Sealing ring.
[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation
[0015] Embodiment 1 of this utility model: An integrated overflow drainage structure with linkage is installed on a water tank. A drain pipe 5 is connected to the bottom of the water tank, and a fixed bracket 3 is fixedly installed inside the water tank. A handle 1 is provided on the fixed bracket 3, and a connecting rod structure 2 is provided on the handle 1. One end of the connecting rod structure 2 is fixedly connected to the handle 1, and the other end of the connecting rod structure 2 is connected to a main pipe 4. The main pipe 4 is vertically positioned, with its lower end located above the drain pipe 5 inside the water tank. The lower end of the main pipe 4 is in contact with the inner wall of the drain pipe 5. The outer wall of the lower end of the main pipe 4 has an annular groove 12, and a sealing ring 13 is provided within the annular groove 12, which is in contact with the inner wall of the drain pipe 5. The end of the drain pipe 5 located below the main pipe 4 is funnel-shaped, with the funnel-shaped end of the drain pipe 5 facing the main pipe 4.
[0016] Example 2: An integrated overflow drainage structure with linkage is installed on a water tank. A drain pipe 5 is connected to the bottom of the water tank, and a fixed bracket 3 is fixedly installed inside the water tank. A handle 1 is provided on the fixed bracket 3, and a connecting rod structure 2 is provided on the handle 1. One end of the connecting rod structure 2 is fixedly connected to the handle 1, and the other end of the connecting rod structure 2 is connected to a main pipe 4. The main pipe 4 is vertically positioned, with its lower end located above the drain pipe 5 inside the water tank. The lower end of the main pipe 4 is in contact with the inner wall of the drain pipe 5. The outer wall of the lower end of the main pipe 4 has an annular groove 12, and a sealing ring 13 is provided within the annular groove 12, which is in contact with the inner wall of the drain pipe 5. The end of the drain pipe 5 located below the main pipe 4 is funnel-shaped, with the funnel-shaped end of the drain pipe 5 facing the main pipe 4.
[0017] The linkage structure 2 includes a first linkage 6, a second linkage 8, and a third linkage 9. One end of the first linkage 6 is fixedly connected to the handle 1. The other end of the first linkage 6 is hinged to one end of the second linkage 8. The other end of the second linkage 8 is hinged to one end of the third linkage 9. The other end of the third linkage 9 is connected to the main pipe 4. A foldable structure is formed between the first linkage 6 and the second linkage 8.
[0018] Example 3: An integrated overflow drainage structure with linkage is installed on a water tank. A drain pipe 5 is connected to the bottom of the water tank, and a fixed bracket 3 is fixedly installed inside the water tank. A handle 1 is provided on the fixed bracket 3, and a connecting rod structure 2 is provided on the handle 1. One end of the connecting rod structure 2 is fixedly connected to the handle 1, and the other end of the connecting rod structure 2 is connected to a main pipe 4. The main pipe 4 is vertically positioned, with its lower end located above the drain pipe 5 inside the water tank. The lower end of the main pipe 4 is in contact with the inner wall of the drain pipe 5. The outer wall of the lower end of the main pipe 4 has an annular groove 12, and a sealing ring 13 is provided within the annular groove 12, which is in contact with the inner wall of the drain pipe 5. The end of the drain pipe 5 located below the main pipe 4 is funnel-shaped, with the funnel-shaped end of the drain pipe 5 facing the main pipe 4.
[0019] The linkage structure 2 includes a first linkage 6, a second linkage 8, and a third linkage 9. One end of the first linkage 6 is fixedly connected to the handle 1. The other end of the first linkage 6 is hinged to one end of the second linkage 8. The other end of the second linkage 8 is hinged to one end of the third linkage 9. The other end of the third linkage 9 is connected to the main pipe 4. A foldable structure is formed between the first linkage 6 and the second linkage 8.
[0020] The second connecting rod 8 is longer than the first connecting rod 6. The second connecting rod 8 has a receiving groove 7. When the first connecting rod 6 and the second connecting rod 8 form a folded structure, the handle 1 is located within the receiving groove 7. Several connecting plates 11 are provided on the top of the main pipe 4, arranged radially on the top of the main pipe 4. One end of each connecting plate 11 is connected to the main pipe 4, and the other end of each connecting plate 11 is fixed with a nut. The lower end of the second connecting rod 8 is threaded and is threaded onto the nut. A gap is left between adjacent connecting plates 11. The lower end of the fixed bracket 3 has a vertical guide structure 10, and the upper end of the main pipe 4 is located within the guide structure 10.
[0021] The working principle of one embodiment of this utility model: like Figure 3 As shown, in this state, the main pipe 4 is located in the lower position, and the sealing ring 13 seals the main pipe 4 and the drain pipe 5. Only when the water level exceeds the top height of the main pipe 4 can it enter the drain pipe 5 through the main pipe 4.
[0022] Need to switch to Figure 4 In this state, when the first link 6 and the second link 8 are folded together by operating the handle 1, the lower end of the main pipe 4 disengages from the drain pipe 5, allowing water to drain directly from the drain pipe 5. In this state, the handle 1 is located within the receiving groove 7, thus locking this state.
[0023] | Comparison Items | Traditional Structure | This Utility Model | | Drainage rate | ≤1.5L / min | ≥4.2L / min | | Anti-clogging capability | Multi-bend pipe | Straight channel | Maintenance time: 30+ minutes | ≤5 minutes
Claims
1. An integrated overflow drainage structure with linkage, installed on a water tank, wherein a drain pipe (5) is connected to the bottom of the water tank, characterized in that, A fixed bracket (3) is fixedly installed inside the water tank; a handle (1) is provided on the fixed bracket (3), and a connecting rod structure (2) is provided on the handle (1). One end of the connecting rod structure (2) is fixedly connected to the handle (1), and the other end of the connecting rod structure (2) is connected to the main pipe (4). The main pipe (4) is set vertically, and the lower end of the main pipe (4) is located above the drain pipe (5) inside the water tank; the lower end of the main pipe (4) is in contact with the inner wall of the drain pipe (5).
2. The integrated overflow drainage structure with linkage according to claim 1, characterized in that, The lower outer wall of the main pipe (4) has an annular groove (12), and a sealing ring (13) is provided in the annular groove (12). The sealing ring (13) and the inner wall of the drain pipe (5) are in contact.
3. The integrated overflow drainage structure with linkage according to claim 1, characterized in that, The end of the drain pipe (5) located below the main pipe (4) is flared, and the flared end of the drain pipe (5) faces the main pipe (4).
4. The integrated overflow drainage structure with linkage according to claim 1, characterized in that, The linkage structure (2) includes a first linkage (6), a second linkage (8) and a third linkage (9). One end of the first linkage (6) is fixedly connected to the handle (1). The other end of the first linkage (6) is hinged to one end of the second linkage (8). The other end of the second linkage (8) is hinged to one end of the third linkage (9). The other end of the third linkage (9) is connected to the main tube (4). A foldable structure is formed between the first linkage (6) and the second linkage (8).
5. The integrated overflow drainage structure with linkage according to claim 4, characterized in that, The length of the second link (8) is greater than that of the first link (6). The second link (8) is provided with a receiving groove (7). When the first link (6) and the second link (8) form a folding structure, the handle (1) is located in the receiving groove (7).
6. The integrated overflow drainage structure with linkage according to claim 4, characterized in that, The top of the main pipe (4) is provided with several connecting plates (11), which are arranged radially on the top of the main pipe (4). One end of the connecting plate (11) is connected to the main pipe (4), and the other end of the connecting plate (11) is fixed with a nut. The lower end of the second connecting rod (8) is provided with a thread, and the lower end of the second connecting rod (8) is set on the nut by the thread. There is a gap between adjacent connecting plates (11).
7. The integrated overflow drainage structure with linkage according to claim 1, characterized in that, The lower end of the fixed bracket (3) has a vertical guide structure (10), and the upper end of the main tube (4) is located inside the guide structure (10).