Stainless steel socket jacking pipe

Abstract

According to the stainless steel socket jacking pipe provided by the invention, the stainless steel ring socket is made of a stainless steel material, so that the corrosion-resistant effect is achieved, and the water pressure of the stainless steel joint reinforced concrete socket pipe is more than one time higher than the water pressure given in the national standard, so that the stainless steel joint reinforced concrete socket pipe can adapt to higher water pressure; the stainless steel ring bellmouth adopts the curved corrugated joint, so that the sealing water pressure resistance of the joint of the pipeline is superior to that of a straight plate socket joint, and the adhesive tape is firmly adhered to a steel plate on the inner wall of the stainless steel ring bellmouth through a strong adhesive, so that the adhesive tape is not easy to turn over and shift in the construction process, and the stability of the adhesive tape is improved; the first wedge-shaped rubber ring and the second wedge-shaped rubber ring are connected with the butt joint of a conical structure in an inserted mode, the water tightness of the joint part is improved, and the sealing performance of the connecting position of the butt joint and the stainless steel ring socket can be further improved through the water swelling rubber strip and the double-component polysulfide sealant. The wooden washer is arranged at the end opening of the butt joint, the cushioning and supporting function can be provided through the wooden washer, 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 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 the pipeline. In view of the above problems, the present invention proposes a stainless steel socket jacking pipe to solve the above problems. Summary of the invention

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

[0005] The present invention is achieved by providing a 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 cross-section of the docking joint is a trapezoidal structure, and the stainless steel ring socket is a corrugated structure. The inner wall of the stainless steel ring socket is provided with a first wedge-shaped rubber ring, a second wedge-shaped rubber ring and a rubber strip from the outside to the inside. The docking joint is inserted into the stainless steel ring socket, and a wooden gasket is provided at the port of the docking joint. A two-component polysulfide sealing paste is provided on the outer wall of the wooden gasket. A grouting pipe is provided inside the docking joint, and a square pipe plug is provided at one end of the grouting pipe. A steel wing ring is provided on the outer wall of the grouting pipe, an external joint is provided on the outer wall of one end of the grouting pipe close to the square pipe plug, and a grouting hole is provided on the grouting pipe.

[0007] Preferably, the connecting surfaces between the first and second rib-shaped rubber rings and the butt joint are of corrugated structure.

[0008] Preferably, a connecting rib is provided between the first yoke-shaped rubber ring and the second yoke-shaped rubber ring, one end of the connecting rib is connected to the first yoke-shaped rubber ring, and the other end of the connecting rib is connected to the second yoke-shaped rubber ring.

[0009] Preferably, one side of the connecting rib is connected to the inner wall of the socket of the stainless steel ring, and the other side is connected to the outer wall of the docking joint, and the connecting surface between the connecting rib and the outer wall of the docking joint is a corrugated structure.

[0010] Preferably, the first yoke-shaped rubber ring and the second yoke-shaped rubber ring are yoke-shaped EPDM rubber rings.

[0011] Preferably, the rubber strip is a water-swellable rubber strip.

[0012] Preferably, the outer side of the square pipe plug is sealed with epoxy cement mortar.

[0013] Preferably, a check valve is provided inside the grouting pipe.

[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 first and second bevel-shaped rubber rings of the present invention are plugged into the conical structure joint, which improves the water tightness of the joint part. The joint structure is sufficient to withstand a water pressure of 0.3 MPa. The water-swellable rubber strip and two-component polysulfide sealing paste can further increase the sealing of the joint and the stainless steel ring socket connection.

[0017] 3. The present invention provides a wooden washer at the port of the joint, which can provide a cushioning function to ensure a stable use effect and improve the anti-distortion after completion, thereby improving the anti-seismic performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front cross-sectional view of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the socket structure of the stainless steel ring in the present invention;

[0020] Figure 3 It is a schematic diagram of the structure after the stainless steel ring socket and the butt joint are connected in the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the stainless steel ring socket at the interface grouting hole in the present invention.

[0022] In the figure:

[0023] 1. Socket pipe; 2. Butt joint; 3. Stainless steel ring socket; 4. First bead-shaped rubber ring; 5. Second bead-shaped rubber ring; 6. Rubber strip; 7. Two-component polysulfide sealing paste; 8. Square pipe plug; 9. Wooden gasket; 10. Grouting pipe; 11. Steel wing ring; 12. External joint; 13. Grouting hole. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] See also Figures 1 to 4The present invention provides a technical solution: a 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 cross section of the butt joint 2 is a trapezoidal structure, the stainless steel ring socket 3 is a corrugated structure, the inner wall of the stainless steel ring socket 3 is provided with a first wedge-shaped rubber ring 4, a second wedge-shaped rubber ring 5 and a rubber strip 6 from the outside to the inside, the butt joint 2 is inserted into the stainless steel ring socket 3, a wooden gasket 9 is provided at the port of the butt joint 2, a two-component polysulfide sealing paste 7 is provided on the outer wall of the wooden gasket 9, a grouting pipe 10 is provided inside the butt joint 2, a square pipe plug 8 is provided at one end of the grouting pipe 10, a steel wing ring 11 is provided on the outer wall of the grouting pipe 10, an outer joint 12 is provided on the outer wall of the end of the grouting pipe 10 close to the square pipe plug 8, and a grouting hole 13 is provided on the grouting pipe 10.

[0030] In this embodiment, the socket pipe 1 in the present invention is a double rubber ring stainless steel socket pipe, all of which are large-diameter. Its model can be selected as DN800, DN1000, DN1200, DN1400, DN1600, DN1800 and DN2000, etc. The inner diameter sizes of the double rubber ring stainless steel socket pipes of the above models are: 800mm, 1000mm, 1200mm, 1400mm, 1600mm, 1800mm and 2000mm, respectively, but the above models are only some implementation methods;

[0031] Among them, the socket pipe 1 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 shall comply with the provisions of GB 175, GB / T 748, and GB / T 20472, and the aggregate shall 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; admixtures or additives are allowed to be added to concrete, 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 GB 8076, and when other admixtures are added, they shall comply with the provisions of other relevant standards; water for mixing concrete 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, 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 tighter the first wedge-shaped rubber ring 4 and the second wedge-shaped rubber ring 5 are connected to the outer wall of the docking joint 2. At this time, the first wedge-shaped rubber ring 4 and the second wedge-shaped rubber ring 5 are not only subjected to the vertical compression force between the docking joint 2 and the stainless steel ring socket 3, but also to the horizontal tightening force between the docking joint 2 and the stainless steel ring socket 3, so that the sealing performance of the first wedge-shaped rubber ring 4 and the second wedge-shaped rubber ring 5 is better, and the first wedge-shaped rubber ring The ring 4 and the second wedge-shaped rubber ring 5 are conducive to improving the sealing performance and ensuring the sealing effect; a rubber strip 6 is also provided on the inner side of the second wedge-shaped rubber ring 5, and the rubber strip 6 swells when it comes into contact with water, and can further swell when it comes into contact with water, so as to achieve a tighter sealing connection between the joint 2 and the stainless steel ring socket 3; a wooden gasket 9 is provided at the port of the joint 2, and the wooden gasket 9 can provide a cushioning function to ensure a stable use effect; a two-component polysulfide sealing paste 7 is provided on the outside of the wooden gasket 9, and the two-component polysulfide sealing paste 7 also improves the sealing performance; a square pipe plug 8 is provided at one end of the grouting pipe 10, and an epoxy cement mortar plug is provided on the outside of the square pipe plug 8, which is conducive to providing a tight sealing effect; the grouting pipe 10 and the grouting hole 13 facilitate grouting to the inside, which improves the convenience of grouting, and the external joint 12 facilitates the realization of the external connection function, which improves the convenience during connection;

[0033] Among them, the first wedge-shaped rubber ring 4 and the second wedge-shaped rubber ring 5 are both glued to the inner wall of the stainless steel ring socket 3 with a strong adhesive, the inner wall of the external joint 12 is an internal thread, the outer wall of the square pipe plug 8 is an external thread, and the external joint 12 is matched with the square pipe plug 8 and screwed; the wooden washer 9 is arranged on the end face of the butt joint 2, and the two side faces of the wooden washer 9, one side face is connected to the end face of the butt joint 2, and the other side face 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 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 stronger adaptability and can adapt to various complex terrains.

[0036] For further information, see Figure 2 The connection surfaces between the first yoke-shaped rubber ring 4 and the second yoke-shaped rubber ring 5 and the butt joint 2 are of a corrugated structure.

[0037] In this embodiment, the connection surfaces of the first and second elliptical rubber rings 4 and 5 with the butt joint 2 are of a corrugated structure. At this time, the friction force with the connection surfaces of the butt joint 2 is relatively reduced, which facilitates the plugging of the butt joint 2 with the stainless steel ring socket 3.

[0038] Furthermore, a connecting rib is provided between the first wedge-shaped rubber ring 4 and the second wedge-shaped rubber ring 5 , and one end of the connecting rib is connected to the first wedge-shaped rubber ring 4 , and the other end is connected to the second wedge-shaped rubber ring 5 .

[0039] Furthermore, one side of the connecting rib is connected to the inner wall of the stainless steel ring socket 3, and the other side is connected to the outer wall of the butt joint 2, and the connecting surface between the connecting rib and the outer wall of the butt joint 2 is a corrugated structure.

[0040] In this embodiment, the connecting rib connects the first V-shaped rubber ring 4 and the second V-shaped rubber ring 5 into a whole, increasing the width of the V-shaped rubber ring, which can better increase the sealing performance of the connection between the docking joint 2 and the stainless steel ring socket 3; the connecting surface between the connecting rib and the outer wall of the docking joint 2 is a corrugated structure, which can reduce the friction between the connecting rib and the outer wall of the docking joint 2, making it easier to plug the docking joint 2 and the stainless steel ring socket 3.

[0041] For further information, see Figure 2 The first yoke-shaped rubber ring 4 and the second yoke-shaped rubber ring 5 are yoke-shaped EPDM rubber rings.

[0042] 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 4 and the second yoke-type rubber ring 5 is better.

[0043] For further information, see Figure 2 , the rubber strip 6 is a water-swellable rubber strip.

[0044] In this embodiment, a rubber strip 6 is further provided on the inner side of the second yoke-shaped rubber ring 5. 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.

[0045] For further information, see Figure 3 The outer side of the square pipe plug 8 is sealed with epoxy cement mortar.

[0046] In this embodiment, a square pipe plug 8 is provided at one end of the grouting pipe 10, and epoxy cement mortar is provided on the outside of the square pipe plug 8 to provide a tight sealing effect; wherein the inner ring of the square pipe plug 8 is a threaded structure,

[0047] Furthermore, a check valve is provided inside the grouting pipe 10 .

[0048] In this embodiment, the check valve refers to a valve whose opening and closing part is a circular valve disc and which relies on its own weight and medium pressure to produce a movement to block the backflow of the medium; backflow occurs when grouting is placed to ensure the smooth completion of grouting.

[0049] 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, wherein the cross section of the docking joint 2 is a trapezoidal structure, 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 tighter the first wedge-shaped rubber ring 4 and the second wedge-shaped rubber ring 5 are connected to the outer wall of the docking joint 2. At this time, the first wedge-shaped rubber ring 4 and the second wedge-shaped rubber ring 5 are 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 4 and the second wedge-shaped rubber ring 5 is better, and the first wedge-shaped rubber ring 4 and the second wedge-shaped rubber ring 5 are better. The second type rubber ring 5 is conducive to improving the sealing performance and ensuring the sealing effect; a rubber strip 6 is also provided on the inner side of the second type rubber ring 5, and the rubber strip 6 swells when it comes into contact with water. The rubber strip 6 can further swell when it comes into contact with water to achieve a tighter sealing connection between the butt joint 2 and the stainless steel ring socket 3; a wooden gasket 9 is provided at the port of the butt joint 2, and the wooden gasket 9 can provide a cushioning function to ensure a stable use effect; a two-component polysulfide sealing paste 7 is provided on the outside of the wooden gasket 9, and the two-component polysulfide sealing paste 7 also improves the sealing performance; a square pipe plug 8 is provided at one end of the grouting pipe 10, and an epoxy cement mortar plug is provided on the outside of the square pipe plug 8, which is conducive to providing a tight sealing effect; the grouting pipe 10 and the grouting hole 13 facilitate grouting to the inside, which improves the convenience of grouting, and the external joint 12 facilitates the realization of the external connection function, which improves the convenience during connection.

[0050] 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 stainless steel socket jacking pipe, characterized in that: It comprises a socket pipe (1); One end of the socket pipe (1) is provided with a butt joint (2), and the other end is provided with a stainless steel ring socket (3). The cross section of the butt joint (2) is a trapezoidal structure, and the stainless steel ring socket (3) is a corrugated structure. The inner wall of the stainless steel ring socket (3) is provided with a first yoke-shaped rubber ring (4), a second yoke-shaped rubber ring (5) and a rubber strip (6) in sequence from the outside to the inside. The butt joint (2) is inserted into the inside of the stainless steel ring socket (3). A wooden gasket (9) is provided at the port, a two-component polysulfide sealing paste (7) is provided on the outer wall of the wooden gasket (9), a grouting pipe (10) is provided inside the butt joint (2), a square pipe plug (8) is provided at one end of the grouting pipe (10), a steel wing ring (11) is provided on the outer wall of the grouting pipe (10), an external joint (12) is provided on the outer wall of one end of the grouting pipe (10) close to the square pipe plug (8), and a grouting hole (13) is provided on the grouting pipe (10).

2. A stainless steel bell-end jacking pipe according to claim 1, characterized in that: The connection surfaces between the first yoke-shaped rubber ring (4) and the second yoke-shaped rubber ring (5) and the butt joint (2) are of a corrugated structure.

3. A stainless steel bell-end jacking pipe according to claim 2, characterized in that: A connecting rib is provided between the first yoke-shaped rubber ring (4) and the second yoke-shaped rubber ring (5), one end of the connecting rib being connected to the first yoke-shaped rubber ring (4) and the other end being connected to the second yoke-shaped rubber ring (5).

4. A stainless steel bell-end jacking pipe according to claim 3, characterized in that: One side of the connecting rib is connected to the inner wall of the stainless steel ring socket (3), and the other side is connected to the outer wall of the butt joint (2), and the connecting surface between the connecting rib and the outer wall of the butt joint (2) is a corrugated structure.

5. The stainless steel socket jacking pipe according to claim 3, characterized in that: The first yoke-shaped rubber ring (4) and the second yoke-shaped rubber ring (5) are yoke-shaped EPDM rubber rings.

6. A stainless steel bell-end jacking pipe according to claim 1, characterized in that: The rubber strip (6) is a water-swellable rubber strip.

7. The stainless steel socket jacking pipe according to claim 1, characterized in that: The outer side of the square pipe plug (8) is provided with epoxy cement mortar plugging.

8. The stainless steel socket jacking pipe according to claim 1, characterized in that: A check valve is provided inside the grouting pipe (10).

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