A pipe connector

Abstract

The present invention relates to the technical field of pipe connection, and discloses a pipe connection piece, comprising: a fixed pipe, a sealing ring and a locking ring; the device first seals the pipe connection by cooperating with the sealing ring and the fixed pipe, and then further locks the sealing ring and the fixed pipe by a second protrusion on the locking ring and a first protrusion on the fixed pipe, thereby achieving secondary locking; and because sealing ribs are provided on both the inner and outer side walls of the sealing ring, and the sealing ribs extend obliquely downward, when the pipe connection tends to change shape due to excessive pressure or overheating expansion, the sealing ribs will increase the sealing fastening force under the action of pressure, which can effectively suppress the tendency of such shape change, prevent the shape change to extend the service life, and also achieve a better sealing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe connection, in particular to a pipe connector. Background Art

[0002] With the diversification of drainage requirements in various modern buildings, floor drainage systems have also undergone various changes, especially in bathrooms, balconies and kitchens where water is frequently used. There are now more and more demands for drainage design, and it is often necessary to connect pipes of different materials, for example, it is common to connect pipes made of PVC and PE.

[0003] At present, existing pipe connectors generally use compression connection or welding connection, but the existing pipe connectors generally have the problem of poor connection sealing. In addition, due to the different pressure and heat resistance of pipes made of different materials, the pipe connectors may be deformed or damaged, which in turn affects the use of the pipeline. Summary of the Invention

[0004] The purpose of the present invention is to provide a pipe connector which not only has a strong connection seal but also can effectively suppress shape changes caused by excessive pipeline pressure or overheating expansion, so as to extend the service life.

[0005] In order to achieve the above-mentioned object, the present invention provides a pipe connector, comprising: a fixed pipe, a sealing ring and a locking ring;

[0006] The fixed pipe is a tubular structure with upper and lower openings, a receiving groove with an upward opening is provided on the top of the fixed pipe, and a plurality of first protrusions spaced apart in the vertical direction are provided on the outer side wall of the top of the fixed pipe;

[0007] The inner and outer side walls of the sealing ring are both provided with a plurality of sealing ribs spaced apart in the vertical direction, and the sealing ribs extend obliquely downward along the side walls of the sealing ring. The sealing ring is arranged in the accommodating groove, and the sealing ribs on the outer side wall of the sealing ring are in contact with the inner side wall of the accommodating groove;

[0008] The locking ring is sleeved on the top of the fixing pipe, and the inner side wall of the locking ring is provided with a plurality of second protrusions alternately arranged with the first protrusions in a vertical direction.

[0009] Preferably, the inner side wall of the fixed pipe has a first protrusion extending inward, and the fixed pipe includes a first connecting portion and a second connecting portion along its axial direction. The first connecting portion is used to insert the pipe located above, and the second connecting portion is used to insert the pipe located below. The first protrusion is provided to ensure that the two pipes will not affect each other during use.

[0010] Preferably, a third protrusion extending vertically downward is provided on the side of the first protrusion facing away from the inner side wall of the fixed pipe fitting, and a gap is provided between the third protrusion and the inner side wall of the fixed pipe fitting. When in use, the pipe located below can be directly inserted into the gap between the third protrusion and the inner side wall of the fixed pipe fitting, which is convenient for positioning. At this time, the third protrusion extends into the pipe located below, and the third protrusion can play a drainage function, so that the upper and lower pipes will not leak due to the mismatch between the calibers.

[0011] Preferably, the outer wall of the middle part of the fixed pipe is provided with a second protrusion extending outward, and the upper surface of the second protrusion is provided with a plurality of mud grooves opening upward, and the mud grooves are arranged at intervals along the extension direction of the second protrusion. By providing the second protrusion, the device can be better embedded in the concrete structure, and the second protrusion can also play a role in stopping water, preventing water from seeping out due to the gap between the fixed pipe and the concrete. The contact area with the concrete can also be increased through the mud groove, so that the embedding effect is better.

[0012] Preferably, the bottom outer wall of the fixing pipe is provided with a second flange extending outward, and the second flange is provided with a plurality of bolt holes opening upward, and the bolt holes are arranged at intervals along the circumference of the second flange. By providing the second flange, the fixing pipe is preliminarily fixed to the concrete structure to facilitate the next step of pouring.

[0013] Preferably, the second flange is further provided with a plurality of reinforcing ribs arranged at circumferential intervals along the second flange, one side of the reinforcing rib is fixed to the second flange, and the other side is fixed to the outer side wall of the fixed pipe, so that the connection strength between the second flange and the fixed pipe is enhanced by the reinforcing ribs.

[0014] Preferably, the outer wall of the middle part of the fixed pipe is provided with a third protrusion extending outward, and the upper surface of the third protrusion is provided with a plurality of mud grooves opening upward, and the mud grooves are arranged at intervals along the extension direction of the third protrusion. By providing the third protrusion, the device can be better embedded in the concrete structure, and the third protrusion can also play a role in stopping water, preventing water from seeping out due to the gap between the fixed pipe and the concrete structure. The contact area with the concrete structure can also be increased through the mud groove, so that the embedding effect is better.

[0015] Preferably, the outer side wall of the fixing pipe is provided with a plurality of fixing grooves arranged at intervals in the vertical direction, the notches of the fixing grooves are facing the side away from the outer side wall of the fixing pipe, and the fixing grooves are located below the first protrusion. By providing a plurality of the fixing grooves on the outer side wall of the fixing pipe, the contact area with the concrete structure is increased, thereby achieving a better pre-embedding effect.

[0016] Preferably, the top of the locking ring is provided with a sealing portion extending inward along the inner side wall of the locking ring, and the sealing portion covers the top of the sealing ring. On the one hand, it can protect the locking ring and the top of the fixed pipe, and on the other hand, it can also prevent water seepage from here.

[0017] Preferably, the outer side wall of the fixing pipe is provided with a plurality of fourth protrusions, and the fourth protrusions are arranged at intervals along the circumference of the fixing pipe. By providing the fourth protrusions, the fixing pipe is easily installed during pre-embedding.

[0018] Preferably, the outer side wall of the locking ring is provided with a plurality of fifth protrusions, and the fifth protrusions are arranged at intervals along the circumference of the locking ring. By providing the fifth protrusions, the locking ring is easily installed during pre-embedding.

[0019] Compared with the prior art, a pipe connector according to an embodiment of the present invention has the following beneficial effects: the device first seals the pipe connection through the cooperation between the sealing ring and the fixed pipe, and then further locks the sealing ring and the fixed pipe through the second protrusion on the locking ring and the first protrusion on the fixed pipe, thereby achieving secondary locking. Moreover, since the inner and outer side walls of the sealing ring are both provided with sealing ribs, and the sealing ribs extend obliquely downward, when the pipe connection tends to change shape due to excessive pressure or overheating expansion, the sealing ribs will make the sealing fastening force increasingly greater under the action of pressure, which can effectively suppress this shape change tendency, prevent the shape from changing to extend the service life, and also achieve a better sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 1 is a schematic diagram of the main structure of the pipe connector according to an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of the internal structure of the pipe connector according to an embodiment of the present invention;

[0022] Figure 3 1 is a schematic diagram of the main structure of the fixing pipe according to an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of the internal structure of the fixed pipe according to an embodiment of the present invention;

[0024] Figure 5 Schematic diagram of the internal structure of the sealing ring according to an embodiment of the present invention.

[0025] In the figure, 1. fixing pipe; 11. accommodating groove; 12. first protrusion; 13. first flange; 131. third protrusion; 14. first connecting part; 15. second connecting part; 16. second flange; 161. bolt hole; 162. reinforcing rib; 17. third flange; 171. mud groove; 18. fixing groove; 19. fourth protrusion; 2. sealing ring; 21. sealing rib; 3. locking ring; 31. second protrusion; 32. covering part; 33. fifth protrusion; 4. concrete structure. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "several" means two or more, unless otherwise specifically defined.

[0029] like Figure 1 - Figure 5 As shown, a pipe connector according to a preferred embodiment of the present invention includes: a fixed pipe 1, a sealing ring 2 and a locking ring 3;

[0030] The fixing pipe 1 is a tubular structure with openings at the top and bottom. The top of the fixing pipe 1 is provided with a receiving groove 11 opening upward. The outer side wall of the top of the fixing pipe 1 is provided with a plurality of first protrusions 12 spaced apart in the vertical direction.

[0031] The inner and outer side walls of the sealing ring 2 are both provided with a plurality of sealing ribs 21 spaced apart in the vertical direction. The sealing ribs 21 extend obliquely downward along the side walls of the sealing ring 2. The sealing ring 2 is disposed in the receiving groove 11, and the sealing ribs 21 on the outer side wall of the sealing ring 2 are in contact with the inner side wall of the receiving groove 11.

[0032] The locking ring 3 is sleeved on the top of the fixed pipe 1 , and the inner side wall of the locking ring 3 is provided with a plurality of second protrusions 31 arranged alternately with the first protrusions 12 in the vertical direction.

[0033] Based on the above scheme, the device first achieves sealing of the pipe connection through the cooperation between the sealing ring 2 and the fixed pipe 1, and then further locks the sealing ring 2 and the fixed pipe 1 through the second protrusion 31 on the locking ring 3 and the first protrusion 12 on the fixed pipe 1 to achieve secondary locking. Moreover, since the inner and outer side walls of the sealing ring 2 are provided with sealing ribs 21, and the sealing ribs 21 extend downwardly at an angle, when the pipe connection tends to change shape due to excessive pressure or overheating expansion, the sealing ribs 21 will make the sealing fastening force greater and greater under the action of pressure, which can effectively suppress this shape change trend, prevent shape changes to extend service life, and also achieve better sealing effect.

[0034] like Figure 4 As shown, for ease of use, the inner side wall of the fixed pipe has a first flange 13 extending inward, and the fixed pipe includes a first connecting portion 14 and a second connecting portion 15 along its axial direction. The first connecting portion 14 is used to insert the pipe located above, and the second connecting portion 15 is used to insert the pipe located below. The first flange 13 is provided to ensure that the two pipes will not affect each other during use.

[0035] like Figure 4 As shown, in order to prevent the upper and lower pipes from leaking due to the mismatch between the calibers, a third protrusion 131 extending vertically downward is provided on the side of the first protrusion 13 facing away from the inner wall of the fixed pipe 1, and a gap is provided between the third protrusion 131 and the inner wall of the fixed pipe 1. When in use, the pipe located below can be directly inserted into the gap between the third protrusion 131 and the inner wall of the fixed pipe 1 for easy positioning, and at this time the third protrusion 131 extends into the pipe located below, and the third protrusion 131 can play a drainage function, so that the upper and lower pipes will not leak due to the mismatch between the calibers.

[0036] like Figure 3 and Figure 4As shown, in order to make the fixed pipe fitting 1 pre-buried more firmly, the middle outer side wall of the fixed pipe fitting 1 is provided with a second protrusion 16 extending outward, and the upper surface of the second protrusion 16 is provided with a plurality of mud grooves 171 opening upward, and each of the mud grooves 171 is arranged at intervals along the extension direction of the second protrusion 16. By providing the second protrusion 16, the device can be better pre-buried in the concrete structure 4, and the second protrusion 16 can also play a role in stopping water, preventing water from seeping out due to the gap between the fixed pipe fitting 1 and the concrete structure 4. The contact area with the concrete structure 4 can also be increased through the mud groove 171, so that the pre-buried effect is better.

[0037] like Figure 3 and Figure 4 As shown, in order to facilitate the installation of the fixing pipe 1, the bottom outer side wall of the fixing pipe 1 is provided with a second flange 16 extending outward, and the second flange 16 is provided with a plurality of bolt holes 161 opening upward, and the bolt holes 161 are arranged at intervals along the circumference of the second flange 16. By providing the second flange 16, the fixing pipe 1 is preliminarily fixed to the concrete structure 4 to facilitate the next step of pouring.

[0038] like Figure 3 and Figure 4 As shown, in order to ensure the connection strength between the second flange 16 and the fixed pipe 1, the second flange 16 is further provided with a plurality of reinforcing ribs 162 arranged at intervals along the circumference of the second flange 16. One side of the reinforcing rib 162 is fixed on the second flange 16, and the other side is fixed on the outer wall of the fixed pipe 1. The connection strength between the second flange 16 and the fixed pipe 1 is enhanced by the reinforcing rib 162.

[0039] like Figure 3 and Figure 4 As shown, in order to facilitate the installation of the fixed pipe fitting 1, the middle outer side wall of the fixed pipe fitting 1 is provided with a third flange 17 extending outward, and the upper surface of the third flange 17 is provided with a plurality of mud grooves 171 opening upward, and each of the mud grooves 171 is arranged at intervals along the extension direction of the third flange 17. By providing the third flange 17, the device can be better embedded in the concrete structure 4, and the third flange 17 can also play a role in stopping water, preventing water from seeping out due to the gap between the fixed pipe fitting 1 and the concrete structure 4. The contact area with the concrete structure 4 can also be increased through the mud groove 171, so that the embedding effect is better.

[0040] like Figure 3 and Figure 4As shown, in order to make the fixed pipe fitting 1 embedded more firmly, the outer wall of the fixed pipe fitting 1 is provided with a plurality of fixing grooves 18 spaced apart in the vertical direction, the notch of the fixing groove 18 is facing the side away from the outer wall of the fixed pipe fitting 1, and the fixing groove 18 is located below the first protrusion 12. By providing a plurality of the fixing grooves 18 on the outer wall of the fixed pipe fitting 1, the contact area with the concrete structure 4 is increased, so that the embedding effect is better.

[0041] like Figure 2 As shown, in order to protect the locking ring 3 and the fixed pipe 1, the top of the locking ring 3 is provided with a sealing portion 32 extending inward along the inner side wall of the locking ring 3. The sealing portion 32 covers the top of the sealing ring 2. On the one hand, it can protect the locking ring 3 and the top of the fixed pipe 1, and on the other hand, it can also prevent water seepage from here.

[0042] like Figure 3 and Figure 4 As shown, for ease of use, the outer side wall of the fixed pipe 1 is provided with a plurality of fourth protrusions 19, and each of the fourth protrusions 19 is arranged at intervals along the circumference of the fixed pipe 1. By providing the fourth protrusions 19, the fixed pipe 1 is facilitated to be installed during pre-embedding.

[0043] like Figure 1 As shown, for ease of use, the outer wall of the locking ring 3 is provided with a plurality of fifth protrusions 33, and each of the fifth protrusions 33 is arranged at intervals along the circumference of the locking ring 3. By providing the fifth protrusions 33, the locking ring 3 is facilitated to be installed during pre-embedding.

[0044] The installation process of the present invention is:

[0045] 1. Install the second flange 16 on the fixed pipe 1 on the hole reserved in the concrete structure 4 by bolts;

[0046] 2. Pour concrete into the holes of the concrete structure 4 to fix the fixing pipe 1 in the concrete structure 4;

[0047] 3. Place the sealing ring 2 in the receiving groove 11, and make the sealing rib 21 on the outer wall of the sealing ring 2 fit with the inner wall of the receiving groove 11;

[0048] 4. Insert the upper pipe into the first connecting portion 14 and make the sealing rib 21 on the inner wall of the sealing ring 2 fit with the outer wall of the upper pipe;

[0049] 5. Slide the locking ring 3 onto the top of the fixed pipe 1, and engage the first protrusion 12 and the second protrusion 31 with each other;

[0050] 6. Insert the lower pipe into the gap between the third protrusion 131 and the inner wall of the fixed pipe 1, and at this time, the third protrusion 131 extends into the lower pipe.

[0051] In summary, the embodiment of the present invention provides a pipe connector, which first achieves sealing of the pipe connection through the cooperation between the sealing ring 2 and the fixed pipe 1, and then further locks the sealing ring 2 and the fixed pipe 1 through the second protrusion 31 on the locking ring 3 and the first protrusion 12 on the fixed pipe 1 to achieve secondary locking. Moreover, since the inner and outer side walls of the sealing ring 2 are both provided with sealing ribs 21, and the sealing ribs 21 extend downwardly at an angle, when the pipe connection tends to change shape due to excessive pressure or overheating expansion, the sealing ribs 21 will make the sealing fastening force greater and greater under the action of pressure, which can effectively suppress this shape change tendency, prevent the shape from changing to extend the service life, and also achieve a better sealing effect.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A pipe connector, characterized in that: include: Fixing pipe fittings, sealing rings and locking rings; The fixed pipe is a tubular structure with upper and lower openings, a receiving groove with an upward opening is provided on the top of the fixed pipe, and a plurality of first protrusions spaced apart in the vertical direction are provided on the outer side wall of the top of the fixed pipe; The inner and outer side walls of the sealing ring are both provided with a plurality of sealing ribs spaced apart in the vertical direction, the sealing ribs extending obliquely downward along the side walls of the sealing ring, and the lower ends of the sealing ribs are not connected to the side walls of the sealing ring. The sealing ring is arranged in the accommodating groove, and the sealing ribs on the outer side wall of the sealing ring are in contact with the inner side wall of the accommodating groove; When the pipe connection tends to change shape due to excessive pressure or overheating, the sealing ribs increase the sealing and fastening force under the action of pressure, thereby suppressing the tendency of the pipe connection to change shape; The locking ring is sleeved on the top of the fixed pipe, and the inner side wall of the locking ring is provided with a plurality of second protrusions arranged alternately with the first protrusions in the vertical direction; The fixing pipe is fixed in the concrete structure, the inner side wall of the fixing pipe has a first convex edge extending inward, and the fixing pipe includes a first connecting portion and a second connecting portion along its axial direction; A third protrusion extending vertically downward is provided on a side of the first convex edge facing away from the inner side wall of the fixing pipe, and a gap is provided between the third protrusion and the inner side wall of the fixing pipe.

2. The pipe connector according to claim 1, characterized in that: A second convex edge extending outward is provided on the outer side wall of the bottom of the fixing pipe. A plurality of bolt holes opening upward are provided on the second convex edge. The bolt holes are arranged at intervals along the circumference of the second convex edge.

3. The pipe connector according to claim 2, characterized in that: The second convex edge is further provided with a plurality of reinforcing ribs spaced apart along the circumference of the second convex edge. One side of the reinforcing rib is fixed to the second convex edge, and the other side is fixed to the outer side wall of the fixed pipe.

4. The pipe connector according to claim 1, characterized in that: A third protrusion extending outward is provided on the outer side wall of the middle portion of the fixed pipe, and a plurality of mud grooves opening upward are provided on the upper surface of the third protrusion, and the mud grooves are spaced apart along the extending direction of the third protrusion.

5. The pipe connector according to claim 1, characterized in that: The outer side wall of the fixing pipe is provided with a plurality of fixing grooves spaced apart in the vertical direction, the notches of the fixing grooves face the side away from the outer side wall of the fixing pipe, and the fixing grooves are located below the first protrusion.

6. The pipe connector according to claim 1, characterized in that: The top of the locking ring is provided with a sealing portion extending inwardly along the inner side wall of the locking ring, and the sealing portion covers the top of the sealing ring.

7. The pipe connector according to claim 1, wherein: The outer side wall of the fixed tube is provided with a plurality of fourth protrusions, and the fourth protrusions are arranged at intervals along the circumference of the fixed tube.

8. The pipe connector according to claim 1, characterized in that: The outer side wall of the locking ring is provided with a plurality of fifth protrusions, and the fifth protrusions are arranged at intervals along the circumference of the locking ring.

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