Sewer pipe clamping and fixing structure

Abstract

The utility model discloses a sewer pipe clamping and fixing structure which comprises a main pipeline, a sewer pipe and a connecting piece, an installation part is arranged on one side of the main pipeline, external threads are arranged on the front side of the installation part, a rubber ring groove is formed in the rear side of the installation part, a water stop rubber ring is arranged on the rubber ring groove in a sleeved mode, and the water stop rubber ring is connected with the main pipeline. The front side of the connecting piece is provided with an internal thread matched with the external thread, the rear side of the connecting piece shrinks inwards to form an extrusion part, the front side of the sewer pipe is provided with a fixing part, the fixing part is arranged between the water stop rubber ring and the extrusion part, and the extrusion part extrudes the fixing part to make the fixing part make close contact with the water stop rubber ring in use. The connecting piece and the sewer pipe are separately arranged, so that the connecting piece and the sewer pipe are connected into a whole without secondary processing during production, and the production is relatively convenient; in addition, the water stop ring is located in front of the rear end of the main pipeline, water flow enters the sewer pipe from the rear end of the main pipeline and is not prone to flowing back to the position of the water stop rubber ring, and the excellent water leakage prevention effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of sewer pipe installation, and in particular to a sewer pipe clamping and fixing structure. Background Art

[0002] The sewer pipe is a pipe used for discharging sewage. The drainage pipes of vegetable sinks, washbasins, washing machines and related water-using equipment are connected to the corresponding sewer pipes to realize the sewage discharge function of the water-using equipment. The traditional sewer pipe is composed of a threaded connector and a bellows. Due to the different materials and production processes of the connector and the bellows, the connector and the bellows are usually produced separately and then subjected to secondary processing. The two are connected as a whole by ultrasonic welding or gluing, and the production process is relatively complicated. In addition, the waterstop rubber ring of the traditional sewer pipe is in contact with the end of the main pipe. When water flows from the main pipe to the sewer pipe, it will pass through the waterstop rubber ring. Over time, the waterstop rubber ring is easily damaged, and water is easy to leak out from the waterstop rubber ring, and the anti-leakage effect is generally. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a new downpipe clamping and fixing structure so that a connector and a corrugated pipe can be connected as one without secondary processing.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sewer pipe clamping and fixing structure, comprising a main pipe, a sewer pipe and a connecting piece, a mounting portion is provided on one side of the main pipe, an external thread is provided on the front side of the mounting portion, a rubber ring groove is provided on the rear side of the mounting portion, a waterstop rubber ring is sleeved on the rubber ring groove, an internal thread matching the external thread is provided on the front side of the connecting piece, the rear side of the connecting piece shrinks inward to form an extrusion portion, a fixing portion is provided on the front side of the sewer pipe, the fixing portion is placed between the waterstop rubber ring and the extrusion portion, and the fixing portion contacts the waterstop rubber ring under the extrusion of the extrusion portion.

[0005] Furthermore, a positioning groove is provided on the installation portion, and the positioning groove is located at the rear side of the rubber ring groove. A positioning rail is provided on the inner surface of the fixing portion, and the positioning rail is placed in the positioning groove.

[0006] Furthermore, a frustoconical mounting portion slide is provided on the rear end outer surface of the mounting portion.

[0007] Furthermore, the inner surface of the front end of the fixing portion is inclined outward to form a fixing portion landslide.

[0008] Furthermore, a limiting member is provided on the mounting portion, the limiting member is in the shape of a circular ring, the outer diameter of which is larger than the inner diameter of the front end of the connecting member, and the limiting member is located at the front side of the external thread.

[0009] Furthermore, a first inclined surface is provided between the internal thread and the extrusion portion, and a second inclined surface is provided between the external thread and the rubber ring groove, and an inclination angle of the first inclined surface is greater than an inclination angle of the second inclined surface.

[0010] Furthermore, an anti-slip portion is provided on the outer surface of the connecting piece.

[0011] Furthermore, the downpipe at the rear side of the fixing portion is a corrugated pipe.

[0012] The beneficial effects of the utility model are: the fixing part is squeezed by the extrusion part on the connecting piece, so that the fixing part is in close contact with the waterproof rubber ring, thereby realizing the connection between the sewer pipe and the main pipe, and the installation is convenient, and the waterproof ring is located in front of the rear end of the main pipe. After the water flows into the sewer pipe from the rear end of the main pipe, it is not easy to flow back to the position of the waterproof rubber ring, and it has an excellent anti-leakage effect. In addition, the connecting piece and the sewer pipe are arranged separately, and there is no need for secondary processing to connect the two into one during production, and the production is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the utility model.

[0014] Figure 2 This is a schematic diagram of the installation part.

[0015] Figure 3 A schematic diagram of the connector.

[0016] Figure 4 This is a schematic diagram of the sewer pipe.

[0017] In the figure: 1. Main pipe; 11. Mounting part; 12. External thread; 13. Rubber ring groove; 131. Waterproof rubber ring; 14. Positioning groove; 15. Limiting piece; 16. Second inclined surface; 17. Slope of mounting part; 2. Downpipe; 21. Fixing part; 22. Positioning rail; 23. Slope of fixing part; 3. Connecting piece; 31. Extrusion part; 32. Internal thread; 33. First inclined surface; 34. Anti-slip part DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings. A clamping and fixing structure for a sewer pipe comprises a main pipe 1, a sewer pipe 2 and a connecting piece 3. A mounting portion 11 is provided on one side of the main pipe 1. An external thread 12 is provided on the front side of the mounting portion 11. A rubber ring groove 13 is provided on the rear side of the mounting portion 11. A water-stop rubber ring 131 is sleeved on the rubber ring groove 13. An internal thread 32 matching the external thread is provided on the front side of the connecting piece 3. The rear side of the connecting piece 3 shrinks inward to form an extrusion portion 31. A fixing portion 21 is provided on the front side of the sewer pipe 2. The fixing portion 21 is placed between the water-stop rubber ring 131 and the extrusion portion 31. When in use, the connecting piece 3 is first sleeved on the sewer pipe 2, and the sewer pipe 2 is then clamped. After the fixing part 21 of the water pipe 2 is put on the mounting part 11, the connecting piece 3 is pushed forward to make the internal thread 32 contact with the external thread 12, and the connecting piece 3 is threadedly connected to the main pipe 1 by rotation. In the process of the connecting piece 3 moving forward, the extrusion part 31 will move forward to cover the top of the waterproof rubber ring 131, thereby squeezing the fixing part 31 to make it in close contact with the waterproof rubber ring 131. The connecting piece 3 is separately arranged from the sewer pipe 2, and there is no need to connect the two together through secondary processing during production, so the production is more convenient. In addition, the waterproof ring 131 is located on the front side of the rear end of the main pipe 1. After the water flows into the sewer pipe 2 from the rear end of the main pipe 1, it is not easy to flow back to the position of the waterproof rubber ring 131, which has an excellent anti-leakage effect.

[0019] Furthermore, a positioning groove 14 is provided on the mounting portion 11, and the positioning groove 14 is located at the rear side of the rubber ring groove 13. A positioning rail 22 is provided on the inner surface of the fixing portion 21, and the positioning rail 22 is inserted into the positioning groove 14. After the positioning rail 22 is inserted into the positioning groove 14, the sewer pipe 2 has a good anti-pull effect, which can prevent the sewer pipe 2 from being directly pulled out, and can also prevent sliding during use, and has better stability.

[0020] Furthermore, a frustoconical mounting portion slide 17 is provided on the rear end outer surface of the mounting portion 11 to prevent the end of the main pipe 1 from being stuck on the positioning rail 22 when the sewer pipe fixing portion 21 is inserted.

[0021] Furthermore, the inner surface of the front end of the fixing part 21 is inclined outward to form a fixing part slope 23, which facilitates the placement of the fixing part 21 of the sewer pipe into the installation part 11 and can prevent the end of the fixing part 21 from tilting onto the waterproof rubber ring 131 and causing the waterproof rubber ring 131 to shift, thereby increasing the convenience of installation.

[0022] Furthermore, a limiting member 15 is provided on the mounting portion 11. The limiting member 15 is in a circular ring shape, and its outer diameter is larger than the inner diameter of the front end of the connecting member 3. The limiting member 15 is located at the front side of the external thread 12 to prevent the connecting member 3 from being over-tightened, thereby ensuring that the extrusion portion 31 can be squeezed onto the fixing portion 21 so as to make it in close contact with the water-stop rubber ring 131.

[0023] Furthermore, a first inclined surface 33 is provided between the internal thread 32 and the extrusion portion 31, and a second inclined surface 16 is provided between the external thread 12 and the rubber ring groove 13. The inclination angle of the first inclined surface 33 is greater than the inclination angle of the second inclined surface 16, which can reduce the gap between the extrusion portion 31 and the mounting portion 11 and achieve a better clamping effect.

[0024] Furthermore, the outer surface of the connecting member 3 is provided with an anti-slip portion 34 to facilitate installation in a wet environment.

[0025] Furthermore, the downpipe 2 at the rear side of the fixing portion is a corrugated pipe, and the downpipe 2 is preferably made of a plastic material with a certain elastic deformation capability.

[0026] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A clamping and fixing structure for a sewer pipe, characterized in that It includes a main pipeline, a sewer pipe and a connecting piece, wherein a mounting portion is provided on one side of the main pipeline, an external thread is provided on the front side of the mounting portion, a rubber ring groove is provided on the rear side of the mounting portion, a waterstop rubber ring is sleeved on the rubber ring groove, an internal thread matching the external thread is provided on the front side of the connecting piece, the rear side of the connecting piece shrinks inward to form an extrusion portion, a fixing portion is provided on the front side of the sewer pipe, the fixing portion is placed between the waterstop rubber ring and the extrusion portion, and the fixing portion contacts the waterstop rubber ring under the extrusion of the extrusion portion.

2. A sewer pipe clamping and fixing structure according to claim 1, characterized in that The mounting portion is provided with a positioning groove, the positioning groove is located at the rear side of the rubber ring groove, and the inner surface of the fixing portion is provided with a positioning rail, the positioning rail is placed in the positioning groove.

3. A sewer pipe clamping and fixing structure according to claim 1, characterized in that The rear end outer surface of the mounting portion is provided with a frustoconical mounting portion slide.

4. A sewer pipe clamping and fixing structure according to claim 1, characterized in that The inner surface of the front end of the fixing portion is inclined outward to form a fixing portion landslide.

5. A sewer pipe clamping and fixing structure according to claim 1, characterized in that A limiting member is arranged on the mounting portion. The limiting member is in the shape of a circular ring, and its outer diameter is larger than the inner diameter of the front end of the connecting member. The limiting member is located at the front side of the external thread.

6. A sewer pipe clamping and fixing structure according to claim 1, characterized in that A first inclined surface is arranged between the internal thread and the extrusion portion, and a second inclined surface is arranged between the external thread and the rubber ring groove. The inclination angle of the first inclined surface is greater than the inclination angle of the second inclined surface.

7. A sewer pipe clamping and fixing structure according to any one of claims 1 to 6, characterized in that The outer surface of the connecting piece is provided with an anti-slip portion.

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