CN220453060U - Mute drain pipe with local thread drain section - Google Patents

Abstract

The utility model discloses a mute water drain pipe with a partial threaded water drain section, which comprises a plastic vertical pipe and is characterized in that at least one spiral section is arranged on the inner surface or/and the outer surface of the plastic vertical pipe, and the length of the spiral section is smaller than that of the whole plastic vertical pipe. The spiral section arranged on the plastic vertical pipe is not equal to the length of the plastic vertical pipe, but is smaller than the length of the plastic vertical pipe, so that involute spiral drainage is reduced when the whole vertical pipe approaches to auxiliary ventilation H-shaped pipe fittings, vertical pipe inspection ports, three-way joints and other pipe fittings, the involute spiral drainage passes through the three-way joints in a direct current mode as much as possible, the spiral section can not collide with water flowing through the transverse pipe and the transverse joint, turbulence is formed in the three-way joints, and noise is generated.

Description

Mute drain pipe with local thread drain section

Technical Field

The utility model relates to the technical field of drain pipes, in particular to a mute drain pipe with a local thread drain section.

Background

The applicant is devoted to the study of a silent drain pipe, and submits an utility model patent (application number 201410851992.9) and an utility model patent (application number 201420865789.2) and an appearance design patent application (application number 201430562677.5) which are named as a building drain plastic vertical pipe with spiral ribs to the national intellectual property agency on 12 months 30 of 2014.

Meanwhile, the applicant submits an utility model patent (application number 201410848632.3) and an utility model patent (application number 201420868285.6) and an appearance design patent application (application number 201430562790.3) of the building drainage plastic riser with the spiral groove to the national intellectual property office on the same day. The above patents are commonly known in the industry as multi-spiral drainage risers.

The applicant has subsequently improved the above-mentioned plastic construction drainage riser with spiral grooves or ribs and filed to the national intellectual property agency on the 2 nd month 11 th 2015 an utility model patent (application number 201510072747.2) and an utility model patent (application number 201520100296.4) and an appearance design patent application (application number 201530053654.6) entitled plastic construction drainage riser with spiral single blades. The plastic vertical pipe with spiral single blade for building drainage is mainly characterized in that a spiral single blade is coaxially arranged on the inner wall of a plastic vertical pipe body along the axial direction of the vertical pipe, the length of the spiral single blade is the same as that of the vertical pipe, the plastic vertical pipe is commonly called as a single-spiral vertical pipe for drainage in industry,

further, the applicant has filed an utility model patent (application number 201510072746.8) and an utility model patent (application number 201520099076.4) named a plastic pipe drain riser with a spiral single blade to the national intellectual property agency on 11/2/2015.

Still further, the applicant has filed an utility model patent (application number 202120785178.7) entitled high rib noise reduction spiral drainage riser to the national intellectual property agency at 2021, month 4 and 16. The high-rib noise-reduction spiral drainage vertical pipe is coaxially provided with at least one high-rib spiral rib along the axial direction of the pipe on the inner wall of the pipe. The length of the high rib spiral rib is the same as that of the vertical pipe.

Such is also chinese patent CN110886910A, CN209164793U, CN110107744A, CN209277246U, CN212776002U, CN211649340U, CN213954676U, CN111623187A, CN215981245U, CN211821264U, CN205806709U, CN215981405U, CN209925787U, CN103883807A, CN203940132U, CN109099230A, CN114753454A, CN217460785U, CN204986064U, CN110701416A, CN209354786U, CN201280746Y, CN203784490U, CN105696659A, CN211040094U, CN207569429U, CN107906269A, CN207864818U, CN216813399U, CN103438291A, CN101799096A, CN205604370U, CN203348760U, whether it is a multi-spiral or single-spiral drain riser.

The multi-spiral drainage stand pipe or the single-spiral drainage stand pipe of the patent has a common characteristic that the length of the spiral is equal to the length of the stand pipe, and through practical researches of the applicant for many years, the multi-spiral drainage stand pipe or the single-spiral drainage stand pipe has a common defect that when water flow which is spirally lowered passes through an H-shaped pipe fitting for auxiliary ventilation and a stand pipe inspection port pipe fitting, the spiral water flow of the stand pipe 100 can generate involute spiral water flow impact noise, and the water flow of the stand pipe runs into the auxiliary ventilation pipe to influence the water-through capacity of the whole drainage system; when passing through the three-way joint 300, the water flowing through the cross pipe 200 and the cross joint 330 collides with each other, and turbulence is generated in the three-way joint 300, thereby generating noise. In addition, the volume expansion required for the spiral water flow in the pipe is larger in the round with the three-way joint 300. Also, the existing multi-spiral drainage stand pipe or single-spiral drainage stand pipe is not good in controlling the water flow falling speed, and air-water balance is difficult to achieve. Although patents are on the market to solve the problem by adopting a three-way joint (commonly called a cyclone) with a spiral, the effect is not good.

Also such multi-spiral or single-spiral drain risers can lead to non-uniform wall thickness of the tubing and insufficient straightness of the tubing during extrusion.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a mute drain pipe with a partial threaded drain section aiming at the defects of the existing multi-spiral drain stand pipe or single-spiral drain stand pipe.

In order to achieve the above object, the silent drain pipe with a partially threaded drain section according to the present utility model comprises a plastic riser, characterized in that at least one spiral section is provided on the inner or/and outer surface of the plastic riser, the length of the spiral section being smaller than the length of the entire plastic riser.

In a preferred embodiment of the utility model, the inner or/and outer surface of the plastic riser outside the helical section is a smooth wall.

In a preferred embodiment of the utility model, the length of the spiral section is 500mm-1000mm.

In a preferred embodiment of the utility model, the helical segment is formed by at least one helical rib or one helical groove.

In a preferred embodiment of the utility model, the helical segment is formed by a plurality of co-rotating helical ribs or a plurality of co-rotating helical grooves.

In a preferred embodiment of the utility model, the included angle between the centers of the adjacent two spiral ribs or adjacent two spiral grooves is 10-180 degrees.

In a preferred embodiment of the utility model, the number of the spiral ribs or spiral grooves is 1-18.

In a preferred embodiment of the utility model, the helix angle of each helical rib or flute is 5 ° -85 °.

In a preferred embodiment of the utility model, the helix angle of each helical rib or flute may or may not be the same.

In a preferred embodiment of the utility model, the pitch of each helical rib or helical groove is in the range 450mm to 750mm.

In a preferred embodiment of the utility model, the pitch of each helical rib or helical groove may or may not be the same.

In a preferred embodiment of the utility model, at least two inner helical segments are provided on the inner and outer surfaces of the plastic riser, each segment having a length less than the length of the entire plastic riser.

In a preferred embodiment of the utility model, the distance between two adjacent spiral segments is 300mm-1000mm.

In a preferred embodiment of the utility model, the shape of each spiral segment may or may not be identical.

In a preferred embodiment of the utility model, the length of each helical segment may or may not be the same.

In a preferred embodiment of the utility model, the connection of the plastic riser and the pipe fitting is free of spiral sections, and the surface is smooth.

Compared with the existing multi-spiral drainage vertical pipe or single-spiral drainage vertical pipe, the utility model has the following characteristics:

1. the spiral section arranged on the inner surface and the outer surface of the plastic vertical pipe is not equal to the length of the plastic vertical pipe any more, but is smaller than the length of the plastic vertical pipe, so that the involute distance of spiral drainage and the impact force of rotary water flow are reduced when the spiral drainage approaches to the auxiliary ventilation H-shaped pipe fitting, the vertical pipe inspection opening and the three-way joint, and the spiral drainage passes through the auxiliary ventilation H-shaped pipe fitting, the vertical pipe inspection opening and the three-way joint in a gradual direct current mode, so that the water ventilation capability is improved, and the impact noise in the pipe is reduced.

2. The spiral water flow in the pipe needs smaller expansion capacity when the spiral water flow is in round with the three-way joint 300, so that the water flow falling speed can be well controlled, and the air-water balance is realized.

3. The water curtain effect and the water return quantity of the auxiliary ventilation H-shaped pipe fitting and the vertical pipe inspection opening are reduced while the involute distance of spiral drainage is reduced, so that the vertical pipe water-through capacity of the building drainage system is effectively improved.

4. The spiral sections are arranged on the inner surface and the outer surface of the plastic vertical pipe, so that the wall thickness of the pipe is uniform, and the straightness of the pipe is ensured in the extrusion process.

Drawings

FIG. 1 is a schematic diagram of a prior art drainage system with spiral single-blade plastic pipes.

Fig. 2 is a schematic view of the appearance of a silent drain pipe with a partially threaded drain section according to embodiment 1 of the present utility model.

Fig. 3 is a partial cross-sectional view of a silent drain pipe with a partially threaded drain section in accordance with embodiment 1 of the present utility model.

Fig. 4 is a schematic view showing the appearance of a silent drain pipe with a partially threaded drain section according to embodiment 2 of the present utility model.

Fig. 5 is a schematic cross-sectional view of a silent drain pipe with a partially threaded drain section in accordance with embodiment 3 of the present utility model.

Fig. 6 is a schematic view of the silent drain pipe with partially threaded drain section according to embodiment 4 of the present utility model.

Fig. 7 is a schematic view of the appearance of a silent drain pipe with a partially threaded drain section according to embodiment 5 of the present utility model.

Fig. 8 is a schematic diagram of an application of the drain section with partial threads according to embodiment 3 of the present utility model.

FIG. 9 is a second embodiment of the present utility model with a partially threaded drain section.

FIG. 10 is a third embodiment of the present utility model with a partially threaded drain section.

Detailed Description

The utility model is described in detail below with reference to the drawings and the specific embodiments.

Example 1

Referring to fig. 2 to 3, the silent drain pipe with partially threaded drain section shown therein comprises a plastic riser 10, on the inner surface 12 of the plastic riser 10a section of spiral section 11 is provided, the length of the spiral section 11 being less than the length of the entire plastic riser 10. The surface 12 of the plastic riser 10 outside the spiral section 11 is a smooth wall.

The length of the spiral section 11 is 500mm-1000mm, and may be any value between 500mm-1000mm, for example 500mm, 501mm, 502mm … … 998mm, 999mm, 1000mm.

The spiral segment 11 is formed by at least one spiral rib 11a or one spiral groove. For example, the number of spiral ribs 11a or spiral grooves is 1-18. The number of the spiral ribs 11a or the spiral grooves is any number between 1 to 18, for example, 1, 2, 3, … …, 17 and 18. 1-18 spiral ribs 11a or spiral grooves can be uniformly distributed on the plastic vertical pipe 10, or can be arranged on the plastic vertical pipe 10 in a non-uniform distribution mode. According to different spiral rib 11a shapes or the number of spiral grooves is 1-18, the water flow can be effectively intercepted, the water flow falling speed is controlled, the drainage flow of the vertical pipe can be improved, and the impact noise can be reduced.

The included angle of the circle centers of the adjacent two spiral ribs 11a or the adjacent two spiral grooves is 10 degrees to 180 degrees. The included angle between the centers of the adjacent two spiral ribs 11a or the adjacent two spiral grooves may be any value between 10 ° and 180 ° depending on the number of the spiral ribs 11a, for example, 10 °, 11 °, 12 °, … … °, 178 °, 179 °, 180 °. According to different spiral rib 11a shapes or the included angle of the circle center between the spiral grooves, water flow can be effectively intercepted, the falling speed of the water flow is controlled, the drainage flow of the vertical pipe can be improved, and impact noise can be reduced.

The helix angle of each helical rib 11a or helical groove is 5 ° -85 °. The helix angle of all helical ribs 11a or helical flutes may be any value between 5 ° and 85 °, for example 5 °, 6 °, 7 °, … … °, 84 °, 85 °. The helix angle of all the helical ribs 11a or helical grooves may be the same or different. According to the spiral angle between the spiral ribs 11a or the spiral grooves, water flow can be effectively intercepted, the falling speed of the water flow is controlled, the drainage flow of the vertical pipe can be improved, and impact noise can be reduced.

The pitch of each helical rib 11a or helical groove is 450mm-750mm. The pitch of all the spiral ribs 11a or spiral grooves may be any value between 450mm and 750mm, for example 450mm, 451mm, 452mm … … mm, 549mm, 750mm. The pitches of all the spiral ribs 11a or the spiral grooves may be equal or unequal. According to the pitch of the adjusting spiral rib 11a or the spiral groove, water flow can be effectively intercepted, the falling speed of the water flow is controlled, the drainage flow of the vertical pipe can be improved, and impact noise can be reduced.

The cross-sectional shape of all the spiral ribs 11a or the spiral grooves may be all or only polygonal shapes such as triangles, quadrilaterals, or arc shapes such as semi-circles, semi-ellipses, etc.

Example 2

Referring to fig. 4, this embodiment differs from embodiment 1 in that: an outer helical section 14 is also provided on the outer surface 13 of the plastic riser 10, the length of the outer helical section 14 being less than the length of the entire plastic riser 10; the outer spiral section 14 corresponds to the position and shape of the inner spiral section 11. The outer surface 13 of the plastic riser 10 outside the outer spiral section 14 is a smooth wall.

The rest of the structure of this embodiment is the same as that of embodiment 1.

Example 3

Referring to fig. 5, this embodiment differs from embodiment 1 in that: on the inner surface 12 of the plastic riser 10 there are provided two inner spiral sections 11, each inner spiral section 11 having a length which is smaller than the length of the entire plastic riser 10. Of course, the present utility model is not limited to the two inner spiral segments 11, and two or more inner spiral segments 11 may be used.

The distance between adjacent two inner helical segments 11 is any value between 300mm and 1000mm, for example 300mm, 301mm, 302mm … … 998mm, 999mm, 1000mm.

The shape of each inner spiral segment 11 may or may not be identical. The length of each inner spiral segment 11 may or may not be the same.

The rest of the structure of this embodiment is the same as that of embodiment 1.

Example 4

Referring to fig. 6, this embodiment differs from embodiment 3 in that: two outer spiral sections 14 are also arranged on the outer surface 13 of the plastic riser 10, and the length of the outer spiral sections 14 is smaller than the length of the whole plastic riser 10; the outer spiral section 14 corresponds to the position and shape of the inner spiral section 11. The outer surface 13 of the plastic riser 10 outside the outer spiral section 14 is a smooth wall.

Of course, the present utility model is not limited to the two outer spiral segments 14, and two or more outer spiral segments 14 may be used.

The rest of the structure of this embodiment is the same as that of embodiment 3.

Example 5

Referring to fig. 7, this embodiment differs from the above-described embodiments 1 to 4 in that: a flare 15 is provided at one end of the plastic riser 10 to facilitate plugging with another adjacent plastic riser.

Referring to fig. 8, the silent drain pipe with a partial screw thread drain section of embodiment 4 is two sections A1 and A2, the inside and outside surfaces of the silent drain pipes A1 and A2 of the two sections are provided with a section of inside and outside screw thread sections a11 and a21, the upper end of the silent drain pipe A1 of the partial screw thread drain section is connected with a three-way pipe B1, the lower end of the silent drain pipe A1 of the partial screw thread drain section is connected with the upper end of the silent drain pipe A2 of the partial screw thread drain section through a riser inspection port B2, and the lower end of the silent drain pipe A2 of the partial screw thread drain section is connected with a lateral branch pipe C1 for toilet or bathtub or washbasin drain and a lateral branch pipe C2 for drain of the floor drain D1, D2 through a three-way pipe B3. The joints of the mute drainpipes A1 and A2 with the local thread drainpipe sections, the three-way pipe fitting B1, the vertical pipe inspection port B2 and the three-way pipe fitting B3 are not provided with inner spiral sections, and the inner surfaces are smooth walls. Thus, the mute drainage pipes A1 and A2 with the local thread drainage sections reduce the involute distance of the spiral drainage and the impact force of the rotary water flow when passing through the riser inspection opening B2 and the three-way pipe fitting B3 through the spiral drainage, and the mute drainage pipes pass through the riser inspection opening B2 and the three-way pipe fitting B3 in a gradually direct-current mode, so that the water passing capacity is improved, and the impact noise in the pipes is reduced.

Referring to fig. 9, the silent drain pipe with a partial screw thread drain section of embodiment 4 can be used together with two ventilation pipes D1 and D2, the silent drain pipe with a partial screw thread drain section is two sections A1 and A2, the inner and outer surfaces of the silent drain pipes A1 and A2 of the two sections of the partial screw thread drain section are respectively provided with a section of inner and outer screw thread sections a11 and a21, the upper end of the silent drain pipe A1 of the partial screw thread drain section is connected with a three-way pipe B1, the lower end of the silent drain pipe A1 of the partial screw thread drain section is connected with the upper end of the silent drain pipe A2 of the partial screw thread drain section through an auxiliary ventilation H-shaped pipe B4 and a riser inspection port B2, and the lower end of the silent drain pipe A2 of the partial screw thread drain section is connected with a lateral branch pipe C1 for toilet or bathtub or washbasin drain and a lateral branch pipe C2 for floor drain D1 and D2 drain through a three-way pipe B3. The joints of the mute water discharge pipes A1 and A2 with the local thread water discharge sections and the three-way pipe fitting B1, the auxiliary ventilation H-shaped pipe fitting B4, the vertical pipe inspection port B2 and the three-way pipe fitting B3 are not provided with inner spiral sections, and the inner surfaces are smooth walls. The lower end of the vent pipe D1 is connected with the upper end of the vent pipe D2 through an auxiliary ventilation H-shaped pipe fitting B4.

Thus, the mute drainage pipes A1 and A2 with the local thread drainage sections reduce the involute distance of spiral drainage and the impact force of rotary water flow when the auxiliary ventilation H-shaped pipe fitting B4, the vertical pipe inspection port B2 and the three-way pipe fitting B3 are subjected to spiral drainage, so that the water ventilation capacity is improved and the impact noise in the pipe is reduced through the auxiliary ventilation H-shaped pipe fitting B4 and the three-way pipe fitting B3 in a gradual direct-current mode.

Referring to fig. 10, the silent drain pipe with a partial threaded drain section of embodiment 4 is four sections A1, A2, A3, A4, and can be used together with two ventilation pipes D1, D2, the inner and outer surfaces of the four sections of the silent drain pipe with a partial threaded drain section A1, A2, A3, A4 are respectively provided with a section of inner and outer thread sections a11, a21, a31, a41, the upper end of the silent drain pipe with a partial threaded drain section A1 is connected with a three-way pipe B1, the lower end of the silent drain pipe with a partial threaded drain section A1 is connected with the upper end of the silent drain pipe with a partial threaded drain section A2 through an auxiliary ventilation H-shaped pipe B5 and a riser inspection port B2, and the lower end of the silent drain pipe with a partial threaded drain section A2 is connected with a lateral branch pipe C1 for toilet or bath or basin drainage and a lateral branch pipe C2 for drain D1, D2 through a three-way pipe B3. The upper end of the mute drainpipe A3 of the local thread drainpipe section is connected with a three-way pipe fitting B6, the lower end of the mute drainpipe A3 of the local thread drainpipe section is connected with the upper end of the mute drainpipe A4 of the local thread drainpipe section through an auxiliary ventilation H-shaped pipe fitting B5 and a vertical pipe inspection opening B8, and the lower end of the mute drainpipe A4 of the local thread drainpipe section is connected with a three-way pipe fitting B7.

The joints of the mute drainpipes A1, A2, A3 and A4 with the local thread drainpipe sections and the three-way pipe fittings B1, B3, B6 and B7 and the auxiliary ventilation H-shaped pipe fitting B5 are not provided with inner spiral sections, and the inner surfaces are smooth walls. The lower end of the vent pipe D1 is connected with the upper end of the vent pipe D2 through an auxiliary ventilation H-shaped pipe fitting B5.

Thus, the mute drainage pipes A1, A2, A3 and A4 with the local thread drainage sections reduce the involute distance of spiral drainage and the impact force of rotary water flow when the tee pipe fittings B3 and B7, the auxiliary ventilation H-shaped pipe fittings B5 and the riser inspection ports B2 and B8 are subjected to spiral drainage, and the mute drainage pipes pass through the tee pipe fittings B3 and B7, the auxiliary ventilation H-shaped pipe fittings B5 and the riser inspection ports B2 and B8 in a gradual direct current mode, so that the water ventilation capacity is improved and the impact noise in pipes is reduced.

Claims (16)

1. The silent drain pipe with the partial threaded drain section comprises a plastic vertical pipe and is characterized in that at least one spiral section is arranged on or on the inner surface of the plastic vertical pipe, and the length of the spiral section is smaller than that of the whole plastic vertical pipe.

2. The silent drain pipe with partially threaded drain section according to claim 1, wherein the inner and outer surfaces of the plastic stand pipe outside the spiral section are smooth walls.

3. The silent drain pipe with partially threaded drain section according to claim 1, wherein the length of the spiral section is 500mm-1000mm.

4. The silent drain pipe with partially threaded drain section according to claim 1, wherein the spiral section is comprised of at least one spiral rib or one spiral groove.

5. The silent drain pipe with partially threaded drain section according to claim 1, wherein the spiral section is comprised of a plurality of co-rotating spiral ribs or a plurality of co-rotating spiral grooves.

6. The silent drain pipe with partial thread drain according to claim 5, wherein the included angle between the centers of two adjacent spiral ribs or two adjacent spiral grooves is 10 ° -180 °.

7. The silent drain pipe with partially threaded drain according to claim 5, wherein the number of said helical ribs or grooves is 1-18.

8. A silent drain pipe with partially threaded drain according to claim 1, wherein the helix angle of each helical rib or helical groove is 5 ° -85 °.

9. The silent drain pipe with partially threaded drain according to claim 5, wherein the helix angle of each helical rib or helical groove is the same or different.

10. The silent drain pipe with partially threaded drain according to claim 5, wherein the pitch of each helical rib or helical groove is 450mm-750mm.

11. The silent drain pipe with partially threaded drain according to claim 10, wherein the pitch of each helical rib or helical groove is the same or different.

12. A silent drain pipe with partially threaded drain according to any of claims 1 to 11, wherein at least two internal spiral segments are provided on the inner and outer surface of the plastic riser, each segment having a length less than the length of the entire plastic riser.

13. The silent drain pipe with partially threaded drain according to claim 12, wherein the distance between two adjacent spiral segments is 300mm-1000mm.

14. The silent drain pipe with partially threaded drain section according to claim 12, wherein each spiral section is the same or different in shape.

15. The silent drain pipe with partially threaded drain section according to claim 12, wherein the length of each spiral section is the same or different.

16. The silent drain pipe with partially threaded drain according to claim 1, wherein the plastic riser is free of a spiral section at the junction with the pipe, and the surface is smooth.