Anti-seepage reinforced concrete drainage pipe

Abstract

The utility model discloses an anti-leakage reinforced concrete drainage pipe which comprises a water outlet pipe and a water inlet pipe which are connected with each other, an extension portion is arranged at the front end of an inner cavity of the water inlet pipe, one end of the extension portion extends into the inner cavity of the water outlet pipe, a conical table is arranged in an inner cavity of the extension portion, a first annular groove is formed in the outer wall of the extension portion, and a sealing ring is placed in the first annular groove. One end of the sealing ring abuts against the bottom of the first annular groove, the other end of the sealing ring abuts against the inner wall of the water outlet pipe, a first connecting ring is arranged at the tail end of the water outlet pipe, a second connecting ring is arranged at the front end of the water inlet pipe, the first connecting ring and the second connecting ring are tightly connected through a locking assembly, and the first connecting ring and the second connecting ring are provided with corresponding second annular grooves. According to the anti-seepage drainage pipe, water flow backflow is restrained through the design of the conical table so that the leakage risk can be reduced, meanwhile, a double-anti-seepage structure is formed by combining physical blocking of the sealing ring and dynamic filling sealing of the expansion water stop strip, and the anti-seepage effect of the drainage pipe is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to drainage pipe technical field, concretely is a kind of anti-seepage reinforced concrete drainage pipe. BACKGROUND

[0002] Reinforced concrete drainage pipe is a kind of tubular structure with concrete as base material and embedded steel reinforcement inside, which combines the excellent compression performance of concrete and the excellent tensile performance of steel reinforcement. This pipe material is widely used in municipal drainage, sewage treatment and rainwater discharge engineering projects. Its main features include strong durability, good corrosion resistance, long service life (usually more than 50 years), low production cost and less maintenance requirements. In addition, according to the actual engineering needs, reinforced concrete drainage pipe can be customized with different diameters (300-3000mm) and lengths (commonly 2-3 meters per section), to adapt to various application scenarios.

[0003] Common interface types of reinforced concrete drainage pipe include flat mouth, socket and flexible rebate. Among them, flat mouth pipe interface usually adopts steel mesh concrete sealing method to realize the splicing of multi-section pipe. However, the current connection technology of reinforced concrete drainage pipe is relatively simple, especially at the interface, the sealing performance is insufficient, and water seepage problem is easy to occur. SUMMARY

[0004] The purpose of the utility model is to provide an anti-seepage reinforced concrete drainage pipe to solve the problems raised in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] An anti-seepage reinforced concrete drainage pipe, comprising a water outlet pipe and a water inlet pipe connected to each other, the inner cavity of the water inlet pipe is provided with an extension at the front end, one end of the extension extends into the inner cavity of the water outlet pipe, the inner cavity of the extension is provided with a conical table, an annular groove one is provided on the outer wall of the extension, a sealing ring is placed in the annular groove one, one end of the sealing ring abuts against the bottom of the annular groove one, and the other end abuts against the inner wall of the water outlet pipe, a connecting ring one is provided at the end of the water outlet pipe, a connecting ring two is provided at the front end of the water inlet pipe, the connecting ring one and the connecting ring two are tightly connected through a locking assembly, corresponding annular grooves two are provided on the connecting ring one and the connecting ring two, and an expansion waterstop is placed in the annular grooves two.

[0007] Further, the locking assembly comprises a fixed seat and a ring-shaped protrusion, and a semicircular groove is symmetrically arranged between the fixed seat and the ring-shaped protrusion, the semicircular groove is matched with the outer wall of the water outlet pipe and the water inlet pipe, a ring-shaped clamping groove is arranged at the center of the semicircular groove, the ring-shaped clamping groove is matched with the connecting ring one and the connecting ring two, the ring-shaped clamping groove is used for inserting the connecting ring one and the connecting ring two, and the fixed seat and the ring-shaped protrusion are locked and fixed through cooperation of a bolt one and a nut one.

[0008] Further, installation holes one and two are arranged on the two sides of the fixed seat and the ring-shaped protrusion, the bolt one passes through the installation hole two and the installation hole one in sequence, and the nut one is threadedly connected with the bolt one below the installation hole one.

[0009] Further, a sealing washer is arranged on the inner side of the ring-shaped clamping groove, and the sealing washer covers the outer side of the connecting ring one and the connecting ring two.

[0010] Further, a plurality of through holes are arranged on the side walls of the connecting ring one, the connecting ring two, the fixed seat and the ring-shaped protrusion, a bolt two is arranged on the through hole, and a nut two is threadedly connected to the other end of the bolt two.

[0011] Further, an insertion groove one is arranged on the outer wall of the water outlet pipe, an insertion groove two is arranged on the outer wall of the water inlet pipe, insertion blocks one and two are respectively arranged on the two side walls of the fixed seat and the ring-shaped protrusion, and the insertion blocks one and two are respectively inserted into the insertion groove one and the insertion groove two.

[0012] Further, a guide inclined surface one is arranged on the outer side of the insertion block one, a guide inclined surface two is arranged on the outer side of the insertion block two, a guide inclined surface three matched with the guide inclined surface one is arranged on the insertion groove one, and a guide inclined surface four matched with the guide inclined surface two is arranged on the insertion groove two.

[0013] Further, a plurality of convex points are arranged on the inner walls of the water inlet pipe and the water outlet pipe.

[0014] The utility model discloses beneficial effects:

[0015] The utility model discloses through the setting of conical table, the inner diameter of extension is less than the inner diameter of water outlet pipe, when the water flow passes through conical table and enters the inside of water outlet pipe, the water pressure is relatively reduced, and it is not easy to backflow, thereby effectively prevent the water flow from the gap of water outlet pipe and water inlet pipe and leak, through the setting sealing ring can effectively prevent the backflow water from the gap of water outlet pipe and water inlet pipe and leak, enhance the anti -permeation effect, through being equipped with corresponding ring groove two on connecting ring one and connecting ring two, and the expansion waterstop is placed on the ring groove two, and the expansion waterstop will expand after meeting water, can fill the gap between connecting ring one and connecting ring two, further enhance sealing performance, prevent leakage, ensure the stability and service life of drain pipe use.

[0016] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The overall structural diagram of the present application.

[0018] Figure 2 The exploded view of the present application.

[0019] Figure 3 : Figure 2 The structural enlarged view of the local A.

[0020] Figure 4 The sectional view of the present application.

[0021] Figure 5 : Figure 4 The structural enlarged view of the local B Figure 1 .

[0022] Figure 6 : Figure 4 The structural enlarged view of the local B Figure 2 .

[0023] Reference signs: 1, water outlet pipe; 2, water inlet pipe; 3, extension; 4, locking assembly; 5, connecting ring one; 6, connecting ring two; 7, annular groove two; 8, convex point; 11, insertion groove one; 21, insertion groove two; 31, conical table; 32, annular groove one; 33, sealing ring; 41, fixed seat; 42, annular protrusion; 43, semicircular groove; 44, annular clamping groove; 45, through hole; 46, insertion block one; 47, insertion block two; 71, expansion waterstop; 111, guide inclined surface three; 211, guide inclined surface four; 411, mounting hole one; 421, mounting hole two; 422, bolt one; 423, nut one; 441, sealing washer; 451, bolt two; 452, nut two; 461, guide inclined surface one; 471, guide inclined surface two. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0025] Please refer to Figures 1-6 ;

[0026] The utility model provides an anti -leakage reinforced concrete drain pipe, including each other's connection outlet pipe 1 and inlet pipe 2, and the inner chamber front end of inlet pipe 2 is equipped with extension 3, and one end of extension 3 stretches into the inner chamber of outlet pipe 1, and the inner chamber of extension 3 is equipped with taper platform 31, through the setting of taper platform 31, the inner diameter of extension 3 is less than the inner diameter of outlet pipe 1, when water flow passes through taper platform 31 and enters outlet pipe 1, because the cross-sectional area increases, water pressure reduces, can effectively inhibit the reflux phenomenon, to prevent water flow from the pipe body joint gap leakage. Extension 3 is equipped with a 32 on the outer wall, and sealing ring 33 is placed in annular groove 32, one end of sealing ring 33 abuts with the bottom of annular groove 32, and the other end abuts with the inner wall of outlet pipe 1, when water flow appears accidental reflux, sealing ring 33 can prevent the water from the joint gap of outlet pipe 1 and inlet pipe 2 from leaking, and the anti -leakage effect is enhanced. The end of outlet pipe 1 is equipped with connecting ring one 5, and the front end of inlet pipe 2 is equipped with connecting ring two 6, connecting ring one 5 and connecting ring two 6 are closely connected by locking assembly 4, to ensure that outlet pipe 1 and inlet pipe 2 will not be separated under the action of water pressure. Connecting ring one 5 and connecting ring two 6 are equipped with corresponding annular groove two 7, and expansion sealing strip 71 is placed in annular groove two 7, expansion sealing strip 71 expands after encountering water, can fill the gap between connecting ring one 5 and connecting ring two 6, further enhance the sealing performance, prevent leakage, ensure the stability and service life of drain pipe.

[0027] In the embodiment, the locking assembly 4 includes a fixed seat 41 and an annular protrusion 42. The fixed seat 41 is pre-buried in the drainage channel. Symmetrical half-circular grooves 43 are provided between the fixed seat 41 and the annular protrusion 42. The two half-circular grooves 43 combine into a circle that can be adapted to the inlet pipe 2 and the outlet pipe. The half-circular grooves 43 are adapted to the outer walls of the outlet pipe 1 and the inlet pipe 2, with their side walls respectively adhering to the outer walls of the outlet pipe 1 and the inlet pipe 2. A ring-shaped clamping groove 44 is provided in the center of the half-circular grooves 43. The ring-shaped clamping groove 44 is adapted to the connecting ring one 5 and the connecting ring two 6. The ring-shaped clamping groove 44 is used for the insertion of the connecting ring one 5 and the connecting ring two 6. The inner walls of the ring-shaped clamping groove 44 respectively abut the outer walls of the connecting ring one 5 and the connecting ring two 6, thereby adhering the connecting ring one 5 and the connecting ring two 6. The fixed seat 41 and the annular protrusion 42 are locked and fixed by the cooperation of a bolt one 422 and a nut one 423, ensuring that the outlet pipe 1 and the inlet pipe 2 do not displace under the action of water pressure.

[0028] In the embodiment, mounting holes one 411 and mounting holes two 421 are respectively provided on the two sides of the fixed seat 41 and the annular protrusion 42. The bolt one 422 passes through the mounting holes two 421 and the mounting holes one 411 in sequence. The nut one 423 is threadedly connected with the bolt one 422 below the mounting holes one 411, thereby locking and fixing the annular protrusion 42 and the fixed seat 41.

[0029] In the embodiment, the inner side of the annular clamping groove 44 is provided with a sealing washer 441, which is wrapped on the outer side of the connecting ring one 5 and the connecting ring two 6 to compensate for the machining error and improve the sealing performance. When the water outlet pipe 1 and the water inlet pipe 2 are installed with the fixed seat 41 and the annular protrusion 42, the sealing washer 441 is wrapped on the outer side of the connecting ring one 5 and the connecting ring two 6 to fill the gap between the annular clamping groove 44 and the connecting ring one 5 and the connecting ring two 6, thereby effectively improving the anti-leakage effect.

[0030] In the embodiment, the side walls of the connecting ring one 5, the connecting ring two 6, the fixed seat 41 and the annular protrusion 42 are provided with a plurality of through holes 45 in communication, a bolt two 451 is arranged on the through hole 45, and a nut two 452 is threadedly connected to the other end of the bolt two 451. The connecting ring one 5 and the connecting ring two 6 are locked together with the fixed seat 41 and the annular protrusion 42, respectively, through the cooperation of the bolt two 451 and the nut two 452.

[0031] In the embodiment, the outer wall of the water outlet pipe 1 is provided with a slot one 11, the outer wall of the water inlet pipe 2 is provided with a slot two 21, the two side walls of the fixed seat 41 and the annular protrusion 42 are respectively provided with an insertion block one 46 and an insertion block two 47, and the insertion block one 46 and the insertion block two 47 are respectively inserted into the slot one 11 and the slot two 21. Through the cooperation of the insertion block and the slot, the impact force generated by the high-speed water flow will be transferred to the water inlet pipe 2, the water outlet pipe 1, the fixed seat 41 and the annular protrusion 42, avoiding the force generated by the water flow impact concentrated on the connecting ring, thereby prolonging the service life of the connecting ring.

[0032] When the water outlet pipe 1 and the water inlet pipe 2 are installed, the insertion block is not easy to align with the slot, thereby causing the water outlet pipe 1 and the water inlet pipe 2 not easy to be installed into the locking assembly 4. Therefore, a guide inclined surface one 461 is arranged on the outer side of the insertion block one 46, a guide inclined surface two 471 is arranged on the outer side of the insertion block two 47, a guide inclined surface three 111 is arranged on the slot one 11 and cooperates with the guide inclined surface one 461, and a guide inclined surface four 211 is arranged on the slot two 21 and cooperates with the guide inclined surface two 471. Through the self-correcting effect of the guide inclined surface, when the insertion block is inserted into the slot, the guide inclined surface will correct the insertion block to the accurate position, thereby reducing the installation difficulty of the water inlet pipe 2 and the water outlet pipe 1 with the locking assembly 4 and improving the installation efficiency.

[0033] In the embodiment, a plurality of protrusions 8 are arranged on the inner walls of the water inlet pipe 2 and the water outlet pipe 1. The protrusions 8 can change the flow state of the water flow, making the water flow more turbulent, thereby reducing the possibility of impurity deposition and the risk of pipeline blockage.

[0034] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0035] Furthermore, it should be understood that although the present specification describes only a single independent technical solution for each embodiment, the specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by a person skilled in the art.

Claims

1. A leakproof reinforced concrete drain pipe comprising a water outlet pipe (1) and a water inlet pipe (2) connected to each other, characterized in that, The inner cavity of the water inlet pipe (2) is provided with an extension (3), one end of the extension (3) extends into the inner cavity of the water outlet pipe (1), the inner cavity of the extension (3) is provided with a tapered table (31), the outer wall of the extension (3) is provided with an annular groove (32), the annular groove (32) is placed with a sealing ring (33), one end of the sealing ring (33) abuts with the bottom of the annular groove (32), the other end abuts with the inner wall of the water outlet pipe (1), the end of the water outlet pipe (1) is provided with a connecting ring (5), the front end of the water inlet pipe (2) is provided with a connecting ring (6), the connecting ring (5) and the connecting ring (6) are tightly connected by the locking assembly (4), the connecting ring (5) and the connecting ring (6) are provided with corresponding annular grooves (7), the annular grooves (7) are placed with expansion water stop strips (71).

2. A leak-proof reinforced concrete drain pipe according to claim 1, characterized in that, The locking assembly (4) comprises a fixed seat (41) and an annular protrusion (42), a semicircular groove (43) is symmetrically arranged between the fixed seat (41) and the annular protrusion (42), the semicircular groove (43) is matched with the outer wall of the water outlet pipe (1) and the water inlet pipe (2), a ring-shaped clamping groove (44) is formed in the middle of the semicircular groove (43), the ring-shaped clamping groove (44) is matched with the connecting ring (5) and the connecting ring (6), the ring-shaped clamping groove (44) is used for the insertion of the connecting ring (5) and the connecting ring (6), the fixed seat (41) and the annular protrusion (42) are locked and fixed by the cooperation of the bolt (422) and the nut (423).

3. A leak-proof reinforced concrete drain pipe according to claim 2, characterized in that, The two sides of the fixed seat (41) and the annular protrusion (42) are provided with mounting holes (411) and mounting holes (421), the bolt (422) passes through the mounting holes (421) and the mounting holes (411) in sequence, and the nut (423) is threadedly connected with the bolt (422) below the mounting holes (411).

4. A leak-proof reinforced concrete drain pipe according to claim 2, wherein The inner side of the ring-shaped clamping groove (44) is provided with a sealing washer (441), and the sealing washer (441) is wrapped on the outer side of the connecting ring (5) and the connecting ring (6).

5. A leak-proof reinforced concrete drain pipe according to claim 4, wherein The side walls of the connecting ring (5), the connecting ring (6), the fixed seat (41) and the annular protrusion (42) are provided with a plurality of communicating through holes (45), the through holes (45) are provided with bolts (451), and the other ends of the bolts (451) are threadedly connected with nuts (452).

6. A leak-proof reinforced concrete drain pipe according to claim 2, wherein The outer wall of the water outlet pipe (1) is provided with a slot (11), the outer wall of the water inlet pipe (2) is provided with a slot (21), the two side walls of the fixed seat (41) and the annular protrusion (42) are respectively provided with an insertion block (46) and an insertion block (47), and the insertion block (46) and the insertion block (47) are respectively inserted into the slot (11) and the slot (21).

7. A leak-proof reinforced concrete drain pipe according to claim 6, characterized in that The outer side of the first inserting block (46) is provided with a guide slope one (461), the outer side of the second inserting block (47) is provided with a guide slope two (471), the first inserting slot (11) is provided with a guide slope three (111) matched with the guide slope one (461), and the second inserting slot (21) is provided with a guide slope four (211) matched with the guide slope two (471).

8. A leak-proof reinforced concrete drain pipe according to claim 1, wherein The inner wall of the water inlet pipe (2) and the water outlet pipe (1) is provided with a plurality of convex points (8).

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