CN217977831U - Prevent municipal drainage pipeline of leakage and use connection structure - Google Patents

Abstract

The utility model discloses a prevent municipal drainage pipe connection structure for leakage, include a drain pipe and stretch into the inside No. two drain pipes of a drain pipe, no. three drain pipes are connected to the one end of No. two drain pipes, the inboard one end of a drain pipe is equipped with the internal thread, no. three drain pipes are equipped with the external screw thread with the one end outside of No. two drain pipe connections, and the internal thread cooperatees with the external screw thread, be equipped with stop device between No. two drain pipe outer walls and a drain pipe inner wall. The utility model discloses a relative position between pipeline linking department pipeline is injectd through the effect of stop device and screw thread to technical aim at, and this two kinds of linking methods can make the piping erection more quick, can further play sealed effect to pipeline linking department through screw thread and No. two rubber rings simultaneously, can reduce the leakage accident frequency of taking place of pipe connection department, reduces pipeline cost of maintenance.

Description

Prevent municipal drainage pipeline of leakage and use connection structure

Technical Field

The utility model relates to a drainage pipe technical field, concretely relates to prevent municipal drainage pipe connection structure for line of leakage.

Background

Municipal drainage pipe network is a very important infrastructure in city, and the sewage that produces in the production life activity all need be carried sewage treatment plant through drainage pipe network and handles, because the transport distance of sewage is very long, needs to be connected fixedly between the unavoidable pipeline and the pipeline. The existing municipal drainage pipelines are generally connected by flange joints, socket joints and the like, but the pipelines connected by the connection modes have water leakage phenomena when being subjected to vibration and long-term corrosive wear, and the connection positions are impacted by water in the pipelines, so that the problems of pipeline position deviation, connection position fracture and the like are easily caused, the sealing effect of the pipelines is influenced, and the water seepage problem is caused to the pipelines; the service life of the pipeline joint is short, so that the pipeline is maintained more frequently, and the maintenance cost is increased.

Disclosure of Invention

Not enough to prior art, the utility model aims to provide a prevent connection structure for municipal drainage pipe of leakage.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

the anti-leakage connecting structure for the municipal drainage pipeline comprises a first drainage pipe and a second drainage pipe arranged in the first drainage pipe, wherein one end of the second drainage pipe is connected with a third drainage pipe, one end part of the third drainage pipe is connected with the second drainage pipe and stretches into the first drainage pipe, an inner wall of the first drainage pipe is provided with an internal thread, an external thread is arranged outside one end of the third drainage pipe and the second drainage pipe, the internal thread is matched with the external thread, the outer surface of the third drainage pipe and the second drainage pipe is provided with a second rubber ring, the inner diameter of the second rubber ring is consistent with the outer diameter of the second drainage pipe, the inner diameter of the same drainage pipe is consistent, a limiting device is arranged between the outer wall of the second drainage pipe and the inner wall of the first drainage pipe, a sealing block is arranged on the inner wall between the internal thread on the limiting device and the inner wall of the first drainage pipe, and the sealing block is tightly abutted against the second rubber ring.

Preferentially among the above-mentioned technical scheme, stop device is a spacing for right angled triangle's a cross-section including setting up on a drain pipe inner wall, no. two drain pipe outer walls are equipped with if the spacing groove, the spacing inslot is equipped with two springs, the one end connecting cross-section of spring is a right angle limit of No. two stoppers of right trapezoid, spacing groove width is unanimous with No. two stopper widths, the spacing groove height is higher than No. two stoppers, and a spacing hypotenuse is towards No. three drain pipe directions, no. two stopper hypotenuses towards the opposite direction with a spacing hypotenuse, and a spacing erects the right angle limit and erects the right angle limit with No. two stoppers and laminate mutually.

Preferentially among the above-mentioned technical scheme, no. one spacing is cyclic annularly established on a drain pipe inner wall with cross-section right angle side one side, no. two stopper have a plurality of, the spacing groove number is unanimous with No. two stopper numbers, the spring has a plurality of.

Preferentially, in the technical scheme, the number of the second limiting blocks and the number of the limiting grooves are four respectively, and the second limiting blocks and the limiting grooves are distributed outside the second drainage pipe in a central symmetry mode.

Preferentially, the first rubber ring with the L-shaped section is arranged on the outer side of the joint of the first drain pipe and the third drain pipe.

In the above technical solution, preferably, the second rubber ring is made of butadiene acrylonitrile rubber.

Preferentially, in the technical scheme, the first limiting strip and the second limiting block are made of hard materials.

Compared with the prior art, the utility model provides a prevent connection structure for municipal drainage pipe of leakage possesses following beneficial effect:

the utility model adopts the technical scheme that one end of pipeline is extended into the other pipeline to be connected, the position of two pipelines is controlled by a limiting device, and the relative position between the pipelines is further fixed by the threaded connection between the pipelines and the action between a sealing block and a third drain pipe, so that the pipeline is prevented from being fractured at the pipeline joint due to the impulsive force of water, and the fracture maintenance frequency of the pipeline joint is reduced; the limiting strips with right-angled triangle sections are matched with the trapezoidal limiting blocks, so that the pipeline installation is quicker and more convenient; the second rubber ring inside the pipeline joint plays a role in sealing, and the first rubber ring outside the pipeline joint plays a role in buffering external force and further sealing, so that the frequency of leakage accidents at the pipeline joint can be reduced; the pipeline connecting structure is an undetachable structure, so that the pipeline connecting structure has an obvious pipeline connecting effect while the relative positions of the pipelines are not changed, the possibility of damage to the pipeline connecting part is greatly reduced, and the service life of the pipeline with the connecting mode is prolonged; the flange connection mode may cause water leakage phenomenon due to the fact that the screws are not screwed, and the connection structure does not have the water leakage phenomenon due to the fact that the screws are not installed in place.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is a left side view of the present invention;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

in the figure: the water discharging pipe comprises a 1-first water discharging pipe, a 2-second water discharging pipe, a 3-third water discharging pipe, a 4-external thread, a 5-limiting device, a 501-first limiting strip, a 502-second limiting block, a 503-limiting groove, a 504-spring, a 6-internal thread, a 7-first rubber ring, a 8-second rubber ring and a 9-sealing block.

Detailed Description

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance. Are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention will be further explained with reference to the following figures and examples:

please refer to fig. 1 to 3, the embodiment of the utility model provides a prevent connection structure for municipal drainage pipe of leakage, include No. one drain pipe 1 and locate No. two drain pipes 2 of a drain pipe 1 inside, no. two drain pipes 2's one end is connected No. three drain pipe 3, no. three drain pipe 3 is connected No. two drain pipes 2 tip and is stretched into No. one drain pipe 1, no. one drain pipe 1 inner wall is equipped with internal thread 6, no. three drain pipe 3 is equipped with external screw thread 4 with the one end outside of No. two drain pipe 2 connections, internal thread 6 cooperatees with external screw thread 4, no. three drain pipe 3 is equipped with No. two rubber rings 8 with No. two drain pipe 2 connected's surface, and No. two rubber rings 8 internal diameters are unanimous with No. two drain pipe 2 external diameters, and the same No. 1 internal diameter of drain pipe of external diameter is unanimous, be equipped with stop device 5 between No. two drain pipe 2 outer walls, be equipped with sealed piece 9 on the inner wall between the internal thread 6 on stop device 5 and No. 2 inner wall of No. one drain pipe, no. two rubber rings 8 closely offset. No. two rubber circle 8 seals up the effect to connection structure department, prevents the leakage of water, and when sealed piece 9 and No. two rubber circle 8 received the impulsive force of water at No. three drain pipes 3 to a drain pipe 1 removal, play the cushioning effect to extrusion between them simultaneously, prevent that the impulsive force is too big to make sealed piece 9 fracture. No. two rubber circle 8 can adopt the butadiene acrylonitrile rubber sealing washer, and this material cost is low, and sealed effect is better.

In order to better implement the utility model, one of them, stop device 5 is including setting up No. one spacing 501 that the cross-section on No. one drain pipe 1 inner wall is right triangle, no. two drain pipe 2 outer walls are equipped with if spacing groove 503, be equipped with two spring 504 in the spacing groove 503, one end of spring 504 is connected a right-angle side that the cross-section is No. two spacing 502 of right trapezoid, spacing groove 503 width is unanimous with No. two spacing 502 widths, spacing groove 503 height is higher than No. two spacing 502, no. one spacing 501 hypotenuse is towards No. three drain pipe 3 directions, no. two spacing 502 hypotenuses towards the opposite direction with No. one spacing 501 hypotenuse, and No. one spacing 501 erects the right-angle side and is laminated with No. two spacing 502 erects the right-angle side, both cooperations carry out spacing, no. two spacing 502 is in the spacing groove when spring 504 is in primitive state, at least partly in the spacing inslot 503, when No. two drain pipe 2 in getting into No. one drain pipe 1, from No. two spacing 502 contact with one spacing 501, no. two spacing 502 receive pressure and No. 503 removal in the very big limiting groove connection life-time, no. two spacing structures are used for No. 502, no. two spacing 502, no. two are the very much longer than this spacing structure is connected in the life-time of this limiting groove, no. 502, the limiting groove is the limiting structure is the service life of this limiting structure is longer. In the medium conveying pipeline of high drop, can produce great impact to the pipeline for the junction of pipeline causes the harm easily, owing to this application installed stopper 501, no. two stoppers 502, makes the pipeline when receiving the impact, can offset most impact, with the connection structure of protection pipeline.

In order to implement the utility model better, one of them, a spacing 501 is cyclic annularly established on a drain pipe 1 inner wall with cross-section right-angle side one side, no. two stopper 502 has a plurality of, the spacing groove 503 number is unanimous with No. two stopper 502 numbers, spring 504 has a plurality of.

In order to better implement the utility model, one of them, the number of No. two stopper 502 and spacing groove 503 is four respectively, and central symmetry distributes in the drain pipe 2 outside No. two.

In order to better implement the utility model, one of the first limiting strip 501 and the second limiting block 502 is made of hard material.

In order to better implement the utility model, a rubber ring 7 with an L-shaped section is arranged at the outer side of the joint of the first drain pipe 1 and the third drain pipe 3. No. 7 rubber rings can be consolidated No. 1 drain pipes and No. 3 drain pipe junctions, prevent the fracture of threaded connection department, increase of service life. The first rubber ring 7 is thick, mainly plays a role in damping and preventing breakage of a connecting port, and can be made of a hydrogenated butadiene acrylonitrile rubber ring with better compression resistance and abrasion resistance than butadiene acrylonitrile rubber.

The pipeline and the connecting structure of the utility model are made of durable materials, the limiting device, the sealing block and the threaded connection mode prevent the relative movement between the two connecting pipelines and cause the water leakage phenomenon at the pipeline joint, the non-detachable connecting structure has firm connection to the pipeline joint, the water leakage phenomenon caused by the position change of the pipeline is greatly avoided, and the replacement and maintenance cost can be greatly reduced; the utility model discloses an installation is simple, quick, if damage the back, only need to carry out the whole change to it can.

Based on foretell municipal drainage is connection structure for pipeline of preventing leaking, the device theory of operation is:

when two pipelines need to be connected, firstly, a second drain pipe 2 extends into a first drain pipe 1, in the extending process, a second limiting block 502 is firstly compressed by a sealing block 9, in the process that the second drain pipe 2 continues to extend, the inclined surface of a first limiting strip 501 on the inner wall of the first drain pipe 1 is matched with the inclined surface of the second limiting block 502, so that the second limiting block 502 is extruded, a spring 504 is compressed, the second limiting block 502 retracts into a limiting groove 503, the second drain pipe 2 continues to extend into the first drain pipe 1, after the second limiting block 502 is completely pressed into the limiting groove 503, the second limiting block 502 loses the pressure from the first limiting strip 501, the spring 504 recovers, the second limiting block 502 is ejected out of the limiting groove 503, and at the moment, the first limiting strip 501 limits the second limiting block 502 to exit the first drain pipe 1 along the reverse direction of water flow in fig. 1; the second drain pipe 2 and the third drain pipe 3 are of an integral structure, and the joint of the third drain pipe 3 and the first drain pipe 1 is in threaded connection, so that the second drain pipe 2 and the third drain pipe 3 can be prevented from continuously moving into the first drain pipe 1; a second rubber ring 8 in contact with the inner wall of the same drain pipe 1 is arranged at the joint of the third drain pipe 3 and the second drain pipe 2 to seal the joint, so that water in the pipes is prevented from leaking, the sealing block 9 and the third drain pipe 3 are prevented from being mutually extruded to cause the breakage of the sealing block 9, and meanwhile, the third drain pipe 3 is prevented from moving into the first drain pipe 1 at the position; the first rubber ring 7 at the interface protects the joint.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above embodiments are only used to illustrate the technical solution of the present invention, and do not limit the protection scope of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from these embodiments without any inventive step, are within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still make no creative work on the condition of conflict, and make mutual combination, addition and deletion, or other adjustments according to the features in the embodiments of the present invention, thereby obtaining other technical solutions which are different and do not depart from the concept of the present invention, and these technical solutions also belong to the scope to be protected by the present invention.

Claims (7)

1. The utility model provides a prevent connection structure for municipal drainage pipe of leakage, its characterized in that includes drain pipe (1) and locates No. two drain pipe (2) of a drain pipe (1) inside, no. three drain pipe (3) are connected to the one end of No. two drain pipe (2), no. three drain pipe (3) are connected No. two drain pipe (2) tip and are stretched into drain pipe (1), no. one drain pipe (1) inner wall is equipped with internal thread (6), no. three drain pipe (3) are equipped with external screw thread (4) with the one end outside of No. two drain pipe (2) connections, and internal thread (6) cooperate with external screw thread (4), no. three drain pipe (3) are equipped with No. two rubber circle (8) with the surface of No. two drain pipe (2) connections, and No. two rubber circle (8) internal diameter unanimous with No. two drain pipe (2) external diameter, and No. one drain pipe (1) internal diameter unanimous, be equipped with stop device (5) between No. two drain pipe (2) outer wall and No. one drain pipe (1) inner wall, be equipped with stop device (5) inseparable with the inner wall (9) of internal thread on No. two drain pipe (2), seal block (9) and the sealing block (9).

2. The connection structure for the leakage-proof municipal drainage pipeline according to claim 1, wherein the limiting device (5) comprises a first limiting strip (501) which is arranged on the inner wall of the first drainage pipeline (1) and has a right-angled triangle cross section, a limiting groove (503) is arranged on the outer wall of the second drainage pipeline (2), two springs (504) are arranged in the limiting groove (503), one end of each spring (504) is connected with a right-angled side of the second limiting strip (502) which has a right-angled trapezoid cross section, the width of the limiting groove (503) is identical to that of the second limiting strip (502), the height of the limiting groove (503) is higher than that of the second limiting strip (502), the bevel edge of the first limiting strip (501) faces towards the direction of the third drainage pipeline (3), the bevel edge of the second limiting strip (502) faces the direction opposite to that of the bevel edge of the first limiting strip (501), and the right-angled side of the first limiting strip (501) is attached to the vertical right-angled side of the second limiting strip (502).

3. The connection structure for the leakage-proof municipal drainage pipeline according to claim 2, wherein the first stopper (501) is annularly arranged on the inner wall of the first drainage pipeline (1) at the right-angle side of the cross section, the second stoppers (502) are provided in number, the number of the stopper grooves (503) is the same as the number of the second stoppers (502), and the number of the springs (504) is provided in number.

4. The connection structure for the leak-proof municipal drainage pipeline according to claim 3, wherein the number of the second stopper (502) and the number of the stopper groove (503) are four, and the second stopper and the stopper groove are arranged outside the second drainage pipeline (2) in a central symmetry manner.

5. The connection structure for the leakage-proof municipal drainage pipeline according to claim 1, wherein a rubber ring (7) having an L-shaped cross-section is provided outside the connection between the first drainage pipe (1) and the third drainage pipe (3).

6. The connection structure for leakage-proof municipal drainage pipeline according to claim 1, wherein the second rubber ring (8) is of nitrile rubber.

7. The connection structure for the leakage-proof municipal drainage pipeline according to claim 2, wherein the first stopper (501) and the second stopper (502) are made of hard material.

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