Small-caliber reinforced concrete stainless steel socket jacking pipe

Abstract

According to the small-caliber reinforced concrete stainless steel bellmouth jacking pipe, a stainless steel ring bellmouth is made of a stainless steel material, so that the corrosion resistance effect is achieved, compared with a common steel plate, the using effect is further improved, the cross section of an arranged butt joint is of a trapezoidal structure, and the butt joint is integrally in a cone shape; the first wedge-shaped rubber ring is generally a cone with an inclination angle of 5 degrees, so that the butt joint and the stainless steel ring socket can be conveniently butted, and the tighter the butt joint is inserted in the butt joint process of the butt joint and the stainless steel ring socket, the tighter the connection of the first wedge-shaped rubber ring and the outer wall of the butt joint is; a turnup edge is arranged at the edge of the stainless steel ring socket, the cross section of the turnup edge is hook-shaped, and the turnup edge has a certain protection effect on the first wedge-shaped rubber ring to prevent the first wedge-shaped rubber ring from being separated from the stainless steel ring socket when the first wedge-shaped rubber ring is in friction connection with the butt joint; the buffer gasket is arranged at the port of the butt joint, the cushion supporting and buffering functions can be provided through the buffer gasket, the stable using effect is guaranteed, the distortion resistance is improved after construction is completed, and therefore the shock resistance is also improved.

Description

Technical Field

[0001] The invention belongs to the technical field of socket jacking pipes, and in particular relates to a small-diameter reinforced concrete stainless steel socket jacking pipe. Background Art

[0002] The stainless steel socket jacking pipe is made of high-quality stainless steel material, which can resist the corrosion of various chemical substances. It is not easy to rust even in harsh environments such as humidity, acid and alkali after long-term use, which greatly extends the service life of the pipeline.

[0003] Due to insufficient structural stability, existing pipelines are prone to water seepage and leakage when the water pressure is too high, resulting in a decrease in the effectiveness of pipeline use. To address the above problems, the present invention proposes a small-diameter reinforced concrete stainless steel socket jacking pipe to solve the above problems. Summary of the invention

[0004] The invention provides a small-diameter reinforced concrete stainless steel socket jacking pipe, aiming to solve the problems raised by the background technology.

[0005] The present invention is achieved by providing a small-caliber reinforced concrete stainless steel bell-end jacking pipe, comprising a bell-end pipe;

[0006] A docking joint is provided at one end of the socket pipe, and a stainless steel ring socket is provided at the other end. The docking joint is a conical structure, and the stainless steel ring socket is a corrugated structure. One end of the stainless steel ring socket is fixedly connected to the outer wall of the socket pipe, and a curling edge is provided on the edge of the other end. The cross section of the curling edge is a hook-type structure. The inner wall of the stainless steel ring socket is provided with a first wedge-shaped rubber ring and a rubber strip in sequence from the outside to the inside. The top surface of the first wedge-shaped rubber ring is fixedly connected to the stainless steel ring socket, and one end of the first wedge-shaped rubber ring is accommodated inside the curling edge. A buffer gasket is provided on the end face of the docking joint, and one side surface of the buffer gasket is connected to the end face of the docking joint, and the other end face is connected to one end face of the socket pipe close to the stainless steel ring socket.

[0007] Preferably, the cone angle of the docking joint is 5°.

[0008] Preferably, the thickness of the stainless steel plate used for the socket of the stainless steel ring is not less than 1.5 mm.

[0009] Preferably, the connecting surface between the first rib-shaped rubber ring and the outer wall of the docking joint is a corrugated structure.

[0010] Preferably, a second V-shaped rubber ring is further provided on the inner side of the first V-shaped rubber ring, the second V-shaped rubber ring is spaced apart from the first V-shaped rubber ring, the top surface of the second V-shaped rubber ring is fixedly connected to the inner wall of the stainless steel ring socket, and the bottom surface of the second V-shaped rubber ring is connected to the outer wall of the docking joint.

[0011] Preferably, the first yoke-shaped rubber ring and the second yoke-shaped rubber ring are yoke-shaped EPDM rubber rings.

[0012] Preferably, the rubber strip is a water-swellable rubber strip.

[0013] Preferably, the buffer washer is a wooden washer.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The stainless steel ring socket of the present invention achieves corrosion resistance by adopting stainless steel material, and the use effect is further improved compared with ordinary steel plates, so it can be ensured that the anti-corrosion effect is effectively improved after the construction is completed, and the water pressure of the stainless steel joint reinforced concrete socket pipe is more than twice the water pressure given in the national standard, so it can adapt to the use of larger water pressure, and the stainless steel ring socket adopts a curved corrugated joint to make the joint sealing and water pressure resistance of the pipeline better than the straight plate socket joint. The stainless steel ring socket is glued to the steel plate on the inner wall of the stainless steel ring socket with a strong adhesive before leaving the factory, which brings convenience to the construction. During the construction process, the rubber strip is not easy to overturn or shift, which effectively increases the stability of the rubber strip;

[0016] 2. The cross section of the butt joint is a trapezoidal structure, and the butt joint is in a cone shape as a whole, generally with an inclination angle of 5°. This not only facilitates the butt joint between the butt joint and the socket of the stainless steel ring, but also makes the first yoke-shaped rubber ring and the outer wall of the butt joint more tightly connected during the butt joint and the socket of the stainless steel ring.

[0017] 3. A rolled edge is provided at the edge of the stainless steel ring socket. The cross section of the rolled edge is in the shape of a hook. The rolled edge has a certain protective effect on the first yoke-shaped rubber ring to prevent the first yoke-shaped rubber ring from detaching from the stainless steel ring socket when frictionally connected with the butt joint;

[0018] 4. A buffer washer is provided at the port of the joint, which can provide support and buffering functions to ensure stable use effect. After completion, the anti-twisting performance is improved, thereby improving the seismic resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of a stainless steel ring socket and a butt joint after docking in one embodiment of the present invention;

[0021] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0022] Figure 4 This is a schematic structural diagram of a stainless steel ring socket and a butt joint after docking in another embodiment of the present invention.

[0023] In the figure:

[0024] 1. Socket pipe; 2. Butt joint; 3. Stainless steel ring socket; 4. Flanged edge; 5. First yoke-shaped rubber ring; 6. Rubber strip; 7. Buffer gasket; 8. Second yoke-shaped rubber ring. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0027] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figures 1 to 4The present invention provides a technical solution: a small-diameter reinforced concrete stainless steel socket jacking pipe, comprising a socket pipe 1; a butt joint 2 is provided at one end of the socket pipe 1, and a stainless steel ring socket 3 is provided at the other end, the butt joint 2 is a conical structure, the stainless steel ring socket 3 is a corrugated structure, one end of the stainless steel ring socket 3 is fixedly connected to the outer wall of the socket pipe 1, and a rolled edge 4 is provided on the edge of the other end, and the cross section of the rolled edge 4 is a hook-shaped structure, and the inner wall of the stainless steel ring socket 3 is sequentially provided with a first wedge-shaped rubber ring 5 and a rubber strip 6 from the outside to the inside, the top surface of the first wedge-shaped rubber ring 5 is fixedly connected to the stainless steel ring socket 3, and one end of the first wedge-shaped rubber ring 5 is accommodated in the rolled edge 4, and a buffer gasket 7 is provided on the end face of the butt joint 2, and one side of the buffer gasket 7 is connected to the end face of the butt joint 2, and the other side end face is connected to the end face of the socket pipe 1 close to the stainless steel ring socket 3.

[0031] In one embodiment, the socket pipe 1 of the present invention is suitable for reinforced concrete steel socket pipes with a nominal inner diameter of 300-700 mm, and is suitable for pipes of gravity flow pipes such as rainwater, sewage, water diversion and farmland irrigation and drainage. The cement used in the manufacture of the socket pipe 1 is silicate cement, ordinary silicate cement or slag silicate cement with a standard number not less than 42.5, and can also be sulfate-resistant silicate cement and sulphoaluminate cement with a standard number not less than 42.5. The cement performance should comply with the provisions of GB 175, GB / T 748, and GB / T 20472, and the aggregate should comply with the provisions of GB / T 14684, GB / T 14685 and DB11 / T 1030. The maximum particle size of the coarse aggregate shall not be greater than 1 / 3 of the pipe wall thickness, and shall not be greater than 3 / 4 of the clear distance of the annular reinforcement. Fine aggregate should be medium-coarse sand with a fineness modulus of 2.3-3.3; concrete is allowed to be mixed with admixtures or additives, but the admixtures or additives added shall not have a harmful effect on the socket pipe 1. When fly ash admixtures are added, they shall comply with the provisions of GB1596, when admixtures are added, they shall comply with the provisions of GB8076, and when other admixtures are added, they shall comply with the provisions of other relevant standards; water for concrete mixing shall comply with the provisions of DB13 / T 5082; cold-rolled ribbed steel bars and hot-rolled ribbed steel bars should be used as steel bars, and hot-rolled round steel bars can also be used. The properties of the steel bars shall comply with the provisions of GB / T13788, GB / T 1499.2, and GB / T 1499.1 respectively; the thickness of the steel plate used for the stainless steel ring socket 3 is 5mm, and the properties of the stainless steel socket steel plate shall comply with GB / T 3280 and GB / T 13148; the strength grade of concrete used for pipe making shall not be lower than C40, the steel skeleton in the pipe shall be formed by roll welding or manual welding. When manual welding is adopted, the number of welding points shall be greater than 50% of the total connection points and evenly distributed, and the connection of steel bars shall comply with the provisions of GB 50204;

[0032] When the socket pipe 1 is in use, the first socket pipe 1 is firstly sunk into the well under static pressure, and then one end of the docking joint 2 of the second socket pipe 1 is inserted into the stainless steel ring socket 3 of the first socket pipe 1, and then the connection is blocked; wherein the cross section of the docking joint 2 is a trapezoidal structure, and the docking joint 2 as a whole is in the shape of a cone, generally a cone with an inclination angle of 5°, which not only facilitates the docking of the docking joint 2 and the stainless steel ring socket 3, but also the tighter the docking joint 2 and the stainless steel ring socket 3 are plugged in the process of plugging, the tighter the first wedge-shaped rubber ring 5 is connected to the outer wall of the docking joint 2, at this time, the first wedge-shaped rubber ring 5 is not only subjected to the vertical compression force of the docking joint 2 and the stainless steel ring socket 3, but also to the horizontal tightening force of the docking joint 2 and the stainless steel ring socket 3, so that the sealing performance of the first wedge-shaped rubber ring 5 is better, and the first wedge-shaped rubber ring 5 is conducive to improving the sealing performance and ensuring the sealing effect, wherein the edge of the stainless steel ring socket 3 is provided with a rolled edge 4 (see attached Figure 3 ), the cross section of the rolled edge 4 is in the shape of a hook, and the rolled edge 4 has a certain protective effect on the first yoke-shaped rubber ring 5, preventing the first yoke-shaped rubber ring 5 from being separated from the stainless steel ring socket 3 when being frictionally connected with the butt joint 2; a rubber strip 6 is also provided, and the rubber strip 6 swells when it meets water, and the rubber strip 6 can further swell when it meets water, so as to achieve a tighter sealing connection between the butt joint 2 and the stainless steel ring socket 3; a buffer gasket 7 is provided at the port of the butt joint 2, and the buffer gasket 7 can provide a cushioning function to ensure a stable use effect;

[0033] Among them, the buffer gasket 7 is arranged on the end face of the butt joint 2, and one side of the buffer gasket 7 is connected to the end face of the butt joint 2, and the other side is connected to the end face of the socket pipe 1 inside the stainless steel ring socket 3; the rubber strip 6 on the inner wall of the stainless steel ring socket 3 is firmly glued to the steel plate on the inner wall of the stainless steel ring socket 3 with a strong adhesive when leaving the factory;

[0034] When the bell-end pipe 1 made by the present invention is subjected to an internal water pressure test, after comparing the maximum pressure values ​​that the bell-end pipe 1 made by the present invention can withstand with that of the traditional bell-end pipe, it is found that the maximum pressure value that the traditional bell-end pipe can withstand is 0.15MPa, and the maximum pressure value that the bell-end pipe 1 made by the present invention can withstand is 0.3MPa. The maximum pressure value that the bell-end pipe 1 made by the present invention can withstand is twice the maximum pressure value of the water in the traditional bell-end pipe;

[0035] When the two socket pipes 1 made by the present invention are butt-jointed, they can withstand butt-jointing work with a rotation angle of less than 3.45°, and have a stronger adaptability and can adapt to various complex terrains.

[0036] For further information, see Figure 2 , the cone angle of the joint 2 is 5°.

[0037] In this embodiment, the cross-section of the docking joint 2 is a trapezoidal structure, and the docking joint 2 as a whole is in the shape of a cone, generally a cone with an inclination angle of 5°, that is, when the docking joint 2 is placed horizontally, the angle between the top surface of the cross-section of the docking joint 2 and the horizontal plane is 5°, and at this time, the vertical drop between the highest point and the lowest point of the top surface of the cross-section of the docking joint 2 is 2.5 mm.

[0038] Furthermore, the thickness of the stainless steel plate used for the stainless steel ring socket 3 is not less than 1.5 mm.

[0039] In this embodiment, the thickness of the stainless steel plate used in the stainless steel ring socket 3 is not less than 1.5 mm. At this time, the bearing capacity and performance of the stainless steel ring socket 3 are optimal, and the corrosion resistance of the stainless steel material is further improved compared to the use of ordinary steel plates.

[0040] For further information, see Figure 3 The connecting surface between the first yoke-shaped rubber ring 5 and the outer wall of the butt joint 2 is a corrugated structure.

[0041] In this embodiment, the connection surface between the first ribbed rubber ring 5 and the outer wall of the docking head 2 is a corrugated structure. At this time, the friction force between the connection surface and the docking head 2 is relatively reduced, which facilitates the plugging of the docking head 2 and the stainless steel ring socket 3.

[0042] For further information, see Figure 4 A second wedge-shaped rubber ring 8 is also provided on the inner side of the first wedge-shaped rubber ring 5. The second wedge-shaped rubber ring 8 is spaced apart from the first wedge-shaped rubber ring 5. The top surface of the second wedge-shaped rubber ring 8 is fixedly connected to the inner wall of the stainless steel ring socket 3, and the bottom surface of the second wedge-shaped rubber ring 8 is connected to the outer wall of the docking joint 2.

[0043] In another embodiment, compared with only providing one first yoke-shaped rubber ring 5, providing the first yoke-shaped rubber ring 5 and the second yoke-shaped rubber ring 8 has a better effect on the water tightness of the joint part, and the second yoke-shaped rubber ring 8 further increases the sealing of the connection between the joint and the stainless steel ring socket 3.

[0044] Furthermore, the first yoke-shaped rubber ring 5 and the second yoke-shaped rubber ring 8 are yoke-shaped EPDM rubber rings.

[0045] In this embodiment, EPDM is a copolymer of ethylene, propylene and a small amount of non-conjugated diene, which is a type of ethylene-propylene rubber, represented by EPDM (Ethylene Propylene Diene Monomer). Because its main chain is composed of chemically stable saturated hydrocarbons and only contains unsaturated double bonds in the side chain, it has excellent aging resistance such as ozone resistance, heat resistance, and weather resistance. In this way, the performance of the first yoke-type rubber ring 5 and the second yoke-type rubber ring 8 is better.

[0046] Furthermore, the rubber strip 6 is a water-swellable rubber strip.

[0047] In this embodiment, the rubber strip 6 is firmly adhered to the steel plate on the inner wall of the stainless steel ring socket 3 with a strong adhesive when leaving the factory. The rubber strip 6 swells when it comes into contact with water. The rubber strip 6 can further expand when it comes into contact with water, thereby achieving a tighter sealing connection between the joint 2 and the stainless steel ring socket 3.

[0048] Furthermore, the buffer washer 7 is a wooden washer.

[0049] In this embodiment, a buffer washer 7 is provided at the port of the docking joint 2. The buffer washer 7 is a wooden washer that can provide a cushioning function to ensure a stable use effect.

[0050] The working principle and use process of the present invention are as follows: when the socket pipe 1 is in use, the first socket pipe 1 is firstly sunk into the well by static pressure, and then one end of the docking joint 2 of the second socket pipe 1 is inserted into the stainless steel ring socket 3 of the first socket pipe 1, and then the connection is sealed; wherein the cross section of the docking joint 2 is a trapezoidal structure, and the docking joint 2 as a whole is in the shape of a cone, generally a cone with an inclination angle of 5°, which not only facilitates the docking of the docking joint 2 and the stainless steel ring socket 3, but also the tighter the docking joint 2 and the stainless steel ring socket 3 are plugged in the process of plugging in, the tighter the first wedge-shaped rubber ring 5 is connected to the outer wall of the docking joint 2, at which time the first wedge-shaped rubber ring 5 is not only subjected to the vertical compression force between the docking joint 2 and the stainless steel ring socket 3, but also to the compression force between the docking joint 2 and the stainless steel ring socket 3. The horizontal tightening force of the stainless steel ring socket 3 makes the sealing performance of the first wedge-shaped rubber ring 5 better, which is conducive to improving the sealing performance and ensuring the sealing effect. A curling edge 4 is provided at one end of the first wedge-shaped rubber ring 5, and the cross-section of the curling edge 4 is a hook shape. The curling edge 4 has a certain protective effect on the first wedge-shaped rubber ring 5 to prevent the first wedge-shaped rubber ring 5 from detaching from the stainless steel ring socket 3 when it is frictionally connected with the docking head 2; a rubber strip 6 is also provided, and the rubber strip 6 swells when it meets water. The rubber strip 6 can further swell when it meets water, so as to achieve a tighter sealing connection between the docking head 2 and the stainless steel ring socket 3; a buffer gasket 7 is provided at the port of the docking head 2, and the buffer gasket 7 can provide a cushioning function to ensure a stable use effect.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A small-diameter reinforced concrete stainless steel socket jacking pipe, characterized in that: It includes a socket pipe (1); One end of the socket pipe (1) is provided with a docking head (2), and the other end is provided with a stainless steel ring socket (3). The docking head (2) is of a conical structure, and the stainless steel ring socket (3) is of a corrugated structure. One end of the stainless steel ring socket (3) is fixedly connected to the outer wall of the socket pipe (1), and the other end edge is provided with a curled edge (4). The cross-section of the curled edge (4) is of a hook-shaped structure. Inside the inner wall of the stainless steel ring socket (3), a first wedge-shaped rubber ring (5) and a rubber strip (6) are arranged in sequence from outside to inside. The top surface of the first wedge-shaped rubber ring (5) is fixedly connected to the stainless steel ring socket (3). One end of the first wedge-shaped rubber ring (5) is accommodated inside the curled edge (4). A buffer washer (7) is arranged on the end face of the docking head (2). One side face of the buffer washer (7) is connected to the end face of the docking head (2), and the other end face is connected to the end face of the socket pipe (1) close to the stainless steel ring socket (3).

2. A small-diameter reinforced concrete stainless steel socket jacking pipe according to claim 1, characterized in that: The conical surface angle of the docking head (2) is 5°.

3. A small-diameter reinforced concrete stainless steel socket jacking pipe according to claim 1, characterized in that: The thickness of the stainless steel plate used for the stainless steel ring socket (3) is not less than 1.5 mm.

4. A small-diameter reinforced concrete stainless steel socket jacking pipe according to claim 1, characterized in that: The connection surface between the first wedge-shaped rubber ring (5) and the outer wall of the docking head (2) is of a corrugated structure.

5. A small-diameter reinforced concrete stainless steel socket jacking pipe according to claim 1, characterized in that: A second wedge-shaped rubber ring (8) is further arranged inside the first wedge-shaped rubber ring (5). The second wedge-shaped rubber ring (8) and the first wedge-shaped rubber ring (5) are distributed at intervals. The top surface of the second wedge-shaped rubber ring (8) is fixedly connected to the inner wall of the stainless steel ring socket (3), and the bottom surface of the second wedge-shaped rubber ring (8) is connected to the outer wall of the docking head (2).

6. A small-diameter reinforced concrete stainless steel socket jacking pipe according to claim 5, characterized in that: The first wedge-shaped rubber ring (5) and the second wedge-shaped rubber ring (8) are wedge-shaped ethylene propylene diene monomer rubber rings.

7. A small-diameter reinforced concrete stainless steel socket jacking pipe according to claim 1, characterized in that: The rubber strip (6) is a water-swellable rubber strip.

8. The small-diameter reinforced concrete stainless steel socket jacking pipe according to claim 1, characterized in that: The buffer washer (7) is a wooden washer.

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