Kitchen drainage connecting structure
By using fittings and sealing materials, especially foaming agents, in the kitchen drainage system, the problem of sewage overflow caused by poor drainage is solved, the sealing performance is improved, odors and cockroaches are prevented from entering, and the performance of the drainage system is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-30
- Publication Date
- 2026-03-24
AI Technical Summary
In kitchen drainage systems, the accumulation of grease and food waste in the drain pipes can cause poor drainage, leading to sewage overflow and inconvenience in cleaning, especially at the connection between the drain riser and the horizontal pipe.
Connectors are installed at the junction of the drain pipe and the drain riser, and sealing material is filled between them, especially foaming agents, to enhance the sealing performance and prevent sewage overflow and odor leakage.
It effectively prevents sewage overflow, enhances airtightness, avoids odors and cockroaches from escaping from the joints, and improves the sealing performance and leak-proof effect of the drainage system.
Smart Images

Figure CN224031815U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building construction, specifically relates to a kitchen drainage connection structure. BACKGROUND
[0002] The sewer drainage design at the kitchen water basin (vegetable washing basin) is that a PVC drainage pipe is reserved and arranged when the floor construction below the water basin is carried out, and the pipe opening of the drainage pipe is slightly larger than the pipe opening of the sewer drainage pipe, and the sewer pipe is directly inserted into the PVC drainage pipe after the installation of the kitchen vegetable washing basin is completed.
[0003] However, the kitchen drainage oil stain and kitchen waste are more, and after the drainage pipe embedded in the floor is used for a long time, the long-term accumulation of the oil stain and the kitchen waste can cause poor drainage, especially when the drainage pipe is divided into a drainage vertical pipe and a drainage horizontal pipe, the drainage horizontal pipe is long, and the above-mentioned situation is more prominent. At this time, if the one-time drainage capacity of the water basin is large, the sewage will overflow from the interface of the drainage vertical pipe to the kitchen floor due to the insufficient flow rate of the sewage in the drainage pipe, and the drainage pipe is usually hidden in the cabinet, which is very inconvenient to clean and clear, and can seriously affect the normal life of the residents. SUMMARY
[0004] Therefore, the utility model aims at providing a kitchen drainage connection structure, which is provided with a joint piece and a sealing material at the sewer pipe and the drainage vertical pipe to solve the problem of sewage overflow and increase the sealing performance of the place.
[0005] The utility model provides a kitchen drainage connection structure, which comprises a joint piece arranged in a reserved drainage vertical pipe of a kitchen, a sewer pipe for connecting a kitchen water basin and a drainage vertical pipe is arranged on the outer side of the joint piece, and a sealing material for improving the leakage prevention performance is filled between the outer wall of the sewer pipe in the drainage vertical pipe and the inner wall of the drainage vertical pipe.
[0006] Further, the joint piece comprises an upper interface ring and a lower flange plate, and a connecting piece for connecting and fixing the upper interface ring and the lower flange plate is arranged between the upper interface ring and the lower flange plate.
[0007] Further, the outer diameter of the flange plate is larger than the outer diameter of the upper interface ring and smaller than the inner diameter of the drainage vertical pipe.
[0008] Further, a sealing piece is arranged between the flange plate and the inner wall of the drainage vertical pipe, and the sealing piece is used to increase the sealing performance between the drainage vertical pipe and the joint piece.
[0009] Further, an annular groove for installing the sealing piece is arranged on the outer circumferential surface of the flange plate.
[0010] Further, the outer diameter of the upper interface ring is less than the inner diameter of the sewer pipe.
[0011] Further, a flow-through hole is formed on the lower flange plate, and the diameter of the flow-through hole is less than the outer diameter of the upper interface ring.
[0012] Further, the sealing material is a foaming agent.
[0013] The kitchen drainage connection structure has the advantages that the joint member and the sealing material are arranged at the sewer pipe and the drainage vertical pipe, so that the sewage overflow problem caused by the slow sewage flow speed of the lower drainage pipe due to the unsmooth drainage when the sewage flow of the kitchen basin is too large can be effectively prevented; meanwhile, the airtightness of the drainage connection structure is improved, so that the odor is prevented from overflowing from the joint, and the cockroaches are prevented from climbing out from the joint. BRIEF DESCRIPTION OF DRAWINGS
[0014] The utility model will be further described in connection with the drawings and examples:
[0015] Figure 1 It is the structure schematic diagram of kitchen drainage connection structure in the utility model;
[0016] Figure 2 It is the structure front view of joint member in the utility model;
[0017] Figure 3 It is the structure side view of joint member in the utility model;
[0018] Figure 4 It is the structure plan view of joint member in the utility model;
[0019] Wherein, the reference signs are: 1-upper interface ring; 2-drainage vertical pipe; 3-sewer pipe; 4-sealing material; 5-sealing member; 6-lower flange plate; 7-connection member; DETAILED DESCRIPTION
[0020] As shown in the figure, the utility model provides a kind of kitchen drainage connection structure, including the joint piece being arranged in kitchen reserved drainage riser 2, the outside of the joint piece is equipped with sewer pipe 3 for communicating kitchen basin and drainage riser 2, and the outer wall of the sewer pipe 3 located in drainage riser 2 is filled with sealing material 4 for improving leakproof performance between drainage riser 2 inner wall;Floor construction will generally be reserved in kitchen ground with the drainage pipeline made of PVC material, wherein the drainage pipeline includes drainage riser 2 for communicating with kitchen basin (tossing vegetable basin) and drainage horizontal pipe for communicating drainage riser 2 and floor drainage system, but the connecting piece 7 between drainage riser 2 and sewer pipe 3 will not do too many connection structures in prior art, at most winding arrangement some waterproof cloth and spot sealant to prevent sewage from interface place leakage treatment, but waterproof cloth and sealant are easy to fail after long-term use, thus it is necessary to improve the connection structure of existing drainage interface;The joint piece is arranged at the interface of sewer pipe 3 and drainage riser 2 in the application, and the outer sleeve of sewer pipe 3 is arranged on the joint piece, and the lower end of the joint piece is fixed on the inner wall of drainage riser 2, and sealing material 4 is filled between drainage riser 2 and sewer pipe 3 to ensure the sealing performance of connecting place, which can effectively prevent sewage overflow problem at this place due to the fact that lower drainage pipe is not smooth and sewage flow rate is slow when kitchen basin sewage flow is too large. Wherein sealing material 4 selects foaming agent, foaming agent refers to the additive that can form cell structure in plastic, i.e. foamed plastic is manufactured;Since the outer sleeve of sewer pipe 3 is arranged on the outer wall of joint piece, foaming agent is filled between the outer wall of sewer pipe 3 and the inner wall of drainage riser 2 to strengthen the connection strength between sewer pipe 3 and drainage riser 2 and ensure the airtightness between sewer pipe 3 and drainage riser 2, avoid odor from joint place overflow, cockroach etc. from this place.
[0021] In the embodiment, the joint piece includes upper interface ring 1 and lower flange plate 6, and connecting piece 7 is arranged between upper interface ring 1 and lower flange plate 6 for connecting and fixing the two;The outer diameter of the upper interface ring 1 is less than the inner diameter of the sewer pipe 3;Flow-through hole is formed on the lower flange plate 6, and the hole diameter of the flow-through hole is less than the outer diameter of the upper interface ring 1;Combined with Figures 2 to 4As shown, the joint piece is sequentially composed of the upper joint ring, the connecting piece 7 and the lower flange plate 6 from top to bottom, and since the sewer pipe 3 is generally selected to be a pipe with a certain ductility such as a corrugated pipe, the outer diameter of the upper joint ring is slightly smaller than the inner diameter of the sewer pipe 3, so that when the sewer pipe 3 is sleeved on the joint piece, a preliminary connection and fixation can be realized between the sewer pipe 3 and the upper joint ring, and the bottom of the sewer pipe 3 directly abuts against the lower flange plate 6, and the connecting piece 7 can not only realize the connection between the upper joint ring and the lower flange plate 6, but also assist in realizing a support in the radial direction of the sewer pipe 3, so as to ensure the normal drainage function of the sewer pipe 3; and the through hole is provided on the lower flange plate 6, so as to ensure that the sewage in the sewer pipe 3 can normally flow into the drainage riser 2, wherein the through hole, the sewer pipe 3 and the upper joint ring are coaxially arranged, and in order to prevent the sewage from leaking out of the through hole due to the too large diameter of the through hole, the diameter of the through hole is smaller than the outer diameter of the upper joint ring 1.
[0022] In the embodiment, the outer diameter of the flange plate is greater than the outer diameter of the upper joint ring 1 and smaller than the inner diameter of the drainage riser 2; the sealing piece 5 is arranged between the flange plate and the inner wall of the drainage riser 2, and the sealing piece 5 is used to increase the sealing performance between the drainage riser 2 and the joint piece; the outer circumferential surface of the flange plate is provided with an annular groove for mounting the sealing piece 5; in combination with Figure 1 and Figure 2 As shown, the outer circumferential surface of the flange plate is provided with an annular groove, and the sealing piece 5 is mounted in the annular groove, and the sealing piece 5 is a rubber piece and can be extruded to a certain extent, so that the sealing performance between the sealing piece 5 and the flange plate and the sealing performance between the sealing piece 5 and the inner wall of the drainage riser 2 are stronger, thereby ensuring the sealing performance between the joint piece and the inner wall of the drainage riser 2.
[0023] In the embodiment, in the specific construction, the joint piece is first inserted into the drainage pipeline reserved on the kitchen floor, the insertion depth is the same as the height of the joint piece, then the washing basin sewer pipe 3 is sleeved on the outer wall of the joint piece, after the installation is completed, the foaming agent is slowly sprayed and hit from the bottom of the joint piece and slowly lifted, until the foaming agent fills the gap between the outer wall of the washing basin sewer pipe 3 and the inner wall of the pre-buried drainage riser 2, and the foaming agent overflowing at the top is not treated at this time. After the foaming agent is foamed and solidified, the foaming agent overflowing at the top is cut and trimmed with an art knife.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, and although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. A kitchen drainage connection structure, characterized in that: The device includes a connector installed inside a pre-installed drain riser in the kitchen. The outer side of the connector is fitted with a drain pipe for connecting the kitchen sink and the drain riser. The outer wall of the drain pipe and the inner wall of the drain riser are filled with a sealing material to improve leak-proof performance.
2. The kitchen drainage connection structure according to claim 1, characterized in that: The connector includes an upper interface ring and a lower flange, and a connecting member for connecting and fixing the upper interface ring and the lower flange is provided between them.
3. The kitchen drainage connection structure according to claim 2, characterized in that: The outer diameter of the flange is larger than the outer diameter of the upper interface ring but smaller than the inner diameter of the drainage riser.
4. The kitchen drainage connection structure according to claim 3, characterized in that: A sealing element is provided between the flange and the inner wall of the drainage riser, and the sealing element is used to increase the sealing performance between the drainage riser and the connector.
5. The kitchen drainage connection structure according to claim 4, characterized in that: The outer circumferential surface of the flange is provided with an annular groove for installing the seal.
6. The kitchen drainage connection structure according to claim 2, characterized in that: The outer diameter of the upper interface ring is set smaller than the inner diameter of the drain pipe.
7. The kitchen drainage connection structure according to claim 2, characterized in that: The lower flange has a flow hole, the diameter of which is smaller than the outer diameter of the upper interface ring.
8. The kitchen drainage connection structure according to claim 1, characterized in that: The sealing material is a foaming agent.