Detachable sealing tool for steel pipe grouting

Abstract

The utility model relates to a detachable sealing tool for steel pipe grouting, which comprises a fixing ring, a sealing ring and a sealing ring. The two groups of first positioning screw rods are respectively welded on the two sides of the fixing ring; the steel plug cover is arranged on the lower end port surface of the steel pipe; the steel pipe plug is welded on the steel plug cover, and the outer diameter of the steel pipe plug is matched with the inner diameter of the steel pipe; the sealing ring is connected to the root of the steel pipe plug in a sleeving mode and is pressed on the steel plug cover through the end opening face of the steel pipe; the two groups of third positioning screw rods are respectively welded on the two sides of the steel plug cover; first positioning screw holes are distributed in the upper part of the connecting plate; third positioning screw holes are distributed in the lower portion of the base. The first positioning nut is in threaded connection with the first positioning screw rod and tightly presses the upper part of the connecting plate on the fixing ring; and the third positioning nut is in threaded connection with the third positioning screw rod and presses the lower part of the connecting plate on the steel plug cover. The utility model is convenient for plugging the port of the steel pipe and is beneficial to disassembly.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe grouting, and in particular to a detachable sealing tool for steel pipe grouting. Background Technology

[0002] When constructing large-volume concrete in deep foundation pits, steel pipes are often used as reinforcement supports. Grouting is carried out through a transverse steel pipe grouting process, and the bottom of the grouting steel pipe usually needs to be sealed.

[0003] At current construction sites, steel plates are often directly welded to seal the bottom of grouting steel pipes. This method is simple to operate, but after the steel pipe is welded, it is troublesome to clean later, and blockages are easily formed inside. Furthermore, the steel plates can only be removed by grinding or cutting, which can easily cause damage to the steel pipe. It cannot be flexibly disassembled and reused, and it does not have the function of detachable sealing components. Utility Model Content

[0004] The technical problem to be solved by this utility model is a detachable sealing tool for grouting steel pipes, which is convenient for sealing the ends of steel pipes and is also easy to disassemble.

[0005] To solve the above problems, a detachable sealing tool for steel pipe grouting was adopted, which includes:

[0006] A fixing ring is circumferentially wrapped around and fixed to the lower end of a steel pipe with grouting holes;

[0007] The first positioning screw consists of two sets, which are welded to both sides of the retaining ring respectively;

[0008] A steel plug cap is installed on the lower end face of the steel pipe, and its outer diameter is larger than the inner diameter of the steel pipe.

[0009] A steel pipe plug is welded to a steel plug cover, and its outer diameter matches the inner diameter of the steel pipe. The steel pipe plug extends into the end of the steel pipe.

[0010] The sealing ring is fitted onto the root of the steel pipe plug and is pressed against the steel plug cover by the end face of the steel pipe.

[0011] The third positioning screw consists of two sets, which are welded to both sides of the steel plug cap respectively;

[0012] The connecting plate has a first positioning screw hole on its upper part, which is adapted to the first positioning screw; and a third positioning screw hole on its lower part, which is adapted to the third positioning screw.

[0013] The first positioning nut is threaded onto the first positioning screw and presses the upper part of the connecting plate onto the retaining ring;

[0014] The third positioning nut is threaded onto the third positioning screw and presses the lower part of the connecting plate against the steel plug cover.

[0015] With this structure, the connecting plate is positioned by a fixing ring, and the steel plug cap is positioned at the lower end of the connecting plate. The steel pipe plug on the steel plug cap blocks the lower end of the steel pipe, so that the end will not leak grout and prevent the formation of an enlarged section at the end, which would be not conducive to the extraction of the steel pipe.

[0016] As a further improvement of this utility model, a second positioning screw is welded to both sides of the fixing ring. The second positioning screw is located below the first positioning screw and is parallel to the first positioning screw. A second positioning screw eye is also distributed on the upper part of the connecting plate. The second positioning screw eye is located below the first positioning screw eye. The second positioning screw eye is passed through by the second positioning screw, and a second positioning nut is threaded onto the second positioning screw.

[0017] This structure, with its double positioning screws, ensures the verticality of the connecting plate, allowing it to accurately position the steel plug cap.

[0018] As a further improvement of this utility model, a pressure sensor is installed at the top of the steel pipe plug; a sensor terminal is fixedly connected to the middle position of the bottom end of the steel plug cover, and the sensor terminal is electrically connected to the pressure sensor. The wiring of the two is set in the cavity opened in the steel plug cover and the steel pipe plug, and is located in the hollow mounting rod in the cavity. The pressure sensor is installed at the upper end of the hollow mounting rod, and a fourth positioning nut is threaded to the upper end of the rod and fastened to the upper port of the cavity. The sensor terminal is installed at the lower end of the hollow mounting rod, and a flange is provided at the lower end of the hollow mounting rod to cover the lower port of the cavity. The bottom surface of the steel plug cover is connected to the upper end of the left support plate and the upper end of the right support plate, and the lower ends of the left support plate and the right support plate are connected to the protective plate.

[0019] This structure facilitates the electrical connection between the sensor terminals and the pressure sensor, while the left and right support plates and the protective plate protect the sensor terminals.

[0020] As a further improvement of this utility model, a reserved groove is provided on the protective plate.

[0021] With this structure, the reserved slots facilitate the connection of the sensor terminals.

[0022] As a further improvement of this utility model, a horizontal upper welding groove and a lower welding groove parallel to the lower side of the fixing ring are provided on the side of the fixing ring, and a vertical connecting groove is provided between the upper welding groove and the lower welding groove; a horizontal right welding groove and a left welding groove are also provided between the upper welding groove and the lower welding groove, the right welding groove and the left welding groove are on the same straight line and connected on the connecting groove.

[0023] This structure makes it easier to weld the retaining ring with the welding gun.

[0024] The beneficial effects of this utility model are: the detachable sealing tool for steel pipe grouting not only realizes the function of detachable sealing parts, but also realizes the function of grouting pressure monitoring, and also realizes the function of easy welding and fixing.

[0025] The system comprises a first positioning screw, a second positioning screw, a first positioning nut, a second positioning nut, a connecting plate, a first positioning screw hole, a second positioning screw hole, a third positioning screw hole, a third positioning screw, a third positioning nut, a steel plug cap, a sealing ring, and a steel pipe plug. During grouting, the concrete grout, pumped by the grouting pump, flows down the grouting steel pipe and overflows from the holes in the pipe body. Before lowering the grouting steel pipe, its bottom is pre-sealed. Before sealing, a fixing ring is welded to the bottom of the pipe body. Then, the steel pipe plug at the end of the steel plug cap is inserted into the bottom opening of the grouting steel pipe and tightened. The sealing ring fits tightly against the opening of the grouting steel pipe. Two sets of connecting plates are then fitted onto the fixing ring and the steel plug cap. On both sides, the first positioning screw, the second positioning screw, and the third positioning screw on both sides of the fixing ring and the steel plug cover are respectively inserted into the first positioning screw hole, the second positioning screw hole, and the third positioning screw hole inside the connecting plate. Then, the first positioning nut, the second positioning nut, and the third positioning nut are respectively put on the outside of the first positioning screw, the second positioning nut, and the third positioning nut to complete the assembly. The steel plug cover, the sealing ring, and the steel pipe plug seal the bottom of the steel pipe. When disassembling later, you only need to remove the first positioning nut, the second positioning nut, and the third positioning nut, and then remove the connecting plate. The steel plug cover can then be removed from the bottom of the steel pipe, which is convenient for cleaning and recycling of the grouting steel pipe and realizes the function of detachable sealing parts.

[0026] By incorporating a pressure sensor, sensor terminals, a bottom protective plate, a left support plate, a right support plate, and a reserved slot, the bottom of the steel pipe is sealed by a steel plug cap and a steel pipe plug during use. During grouting, the internal pressure of the steel pipe will rise significantly. The sensor wiring is connected to the sensor terminals, and the pressure sensor senses the pressure of the concrete grout inside the steel pipe in real time and feeds the data back to the ground monitoring personnel. The protective frame composed of the bottom protective plate, the left support plate, and the right support plate can protect the sensor terminals and prevent damage to the sensor terminals when the steel pipe is lowered. The reserved slot facilitates wiring operations, thus realizing the function of monitoring grouting pressure.

[0027] By setting up an upper welding groove, a lower welding groove, a connecting groove, a right welding groove, and a left welding groove, when fixing the fixing ring, the fixing ring is placed on the tail end of the grouting steel pipe. The hole and groove area formed by the upper welding groove, lower welding groove, connecting groove, right welding groove, and left welding groove facilitates the insertion of the welding gun for spot welding connection, reducing the welding difficulty and realizing the function of easy welding and fixing. Attached Figure Description

[0028] Figure 1 This is a front view structural diagram of the present utility model;

[0029] Figure 2 This is a front view schematic diagram of the fixing ring structure of this utility model;

[0030] Figure 3 This is a side view of the connecting plate structure of this utility model;

[0031] Figure 4 This is a side view of the steel plug cap of this utility model;

[0032] Figure 5 This is a top view of the bottom protective plate structure of this utility model.

[0033] Reference numerals: 1. Fixing ring; 2. First positioning screw; 3. Second positioning screw; 4. First positioning nut; 5. Second positioning nut; 6. Connecting plate; 7. First positioning screw eye; 8. Second positioning screw eye; 9. Third positioning screw eye; 10. Third positioning screw; 11. Third positioning nut; 12. Steel plug cap; 13. Sealing ring; 14. Steel pipe plug; 15. Pressure sensor; 16. Sensor wiring terminal; 17. Bottom protective plate; 18. Left side support plate; 19. Right side support plate; 20. Reserved groove; 21. Upper welding groove; 22. Lower welding groove; 23. Connecting groove; 24. Right welding groove; 25. Left welding groove. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] Example 1

[0037] like Figures 1-5 As shown, a detachable sealing tool for steel pipe grouting includes:

[0038] Fixed ring 1, which is circumferentially wrapped and fixed to the lower end of the steel pipe with grouting hole;

[0039] The first positioning screw 2 consists of two sets, which are welded to both sides of the fixing ring 1 respectively;

[0040] A steel plug cap 12 is installed on the lower end face of the steel pipe, and its outer diameter is larger than the inner diameter of the steel pipe.

[0041] A steel pipe plug 14 is welded to the steel plug cover 12, and its outer diameter matches the inner diameter of the steel pipe. The steel pipe plug 14 extends into the end of the steel pipe.

[0042] The sealing ring 13 is fitted onto the root of the steel pipe plug 14 and is pressed against the steel plug cover 12 by the end face of the steel pipe.

[0043] The third positioning screw 10 consists of two sets, which are welded to both sides of the steel plug cover 12 respectively;

[0044] The connecting plate 6 has a first positioning screw hole 7 on its upper part, which is adapted to the first positioning screw 2; and a third positioning screw hole 9 on its lower part, which is adapted to the third positioning screw 10.

[0045] The first positioning nut 4 is threaded onto the first positioning screw 2 and presses the upper part of the connecting plate 6 onto the fixing ring 1;

[0046] The third positioning nut 11 is threaded onto the third positioning screw 10 and presses the lower part of the connecting plate 6 onto the steel plug cover 12.

[0047] With this structure, the connecting plate 6 is positioned by the fixing ring 1, and the lower end of the connecting plate 6 positions the steel plug cover 12. The steel pipe plug 14 on the steel plug cover 12 blocks the lower end of the steel pipe, so that the end will not leak grout and prevent the end from forming an enlarged section, which is not conducive to the extraction of the steel pipe.

[0048] In this embodiment, the fixing ring 1 is also welded with a second positioning screw 3 on both sides. The second positioning screw 3 is located below the first positioning screw 2 and is parallel to the first positioning screw 2. The upper part of the connecting plate 6 is also distributed with a second positioning screw eye 8, which is located below the first positioning screw eye 7. The second positioning screw eye 8 is passed through by the second positioning screw 3, and the second positioning screw 3 is threadedly connected to a second positioning nut 5.

[0049] With this structure, the double positioning screws ensure the verticality of the connecting plate 6, so that the connecting plate 6 can accurately position the steel plug cover 12.

[0050] The first positioning screw 2, the second positioning screw 3, and the third positioning screw 10 have the same outer diameter, and the external threads of the first positioning screw 2, the second positioning screw 3, and the third positioning screw 10 respectively match the internal threads of the first positioning nut 4, the second positioning nut 5, and the third positioning nut 11.

[0051] The first positioning screw hole 7, the second positioning screw hole 8, and the third positioning screw hole 9 respectively pass through the left and right sides of the connecting plate 6, and the positional dimensions of the first positioning screw hole 7, the second positioning screw hole 8, and the third positioning screw hole 9 correspond one-to-one with the positional dimensions of the first positioning screw 2, the second positioning screw 3, and the third positioning screw 10.

[0052] In this embodiment, a pressure sensor 15 is installed at the top of the steel pipe plug 14; a sensor terminal 16 is fixedly connected to the middle position of the bottom end of the steel plug cover 12, and the sensor terminal 16 is electrically connected to the pressure sensor 15. The wiring of the two is set in the cavity opened in the steel plug cover 12 and the steel pipe plug 14, and is located in the hollow mounting rod in the cavity. The pressure sensor 15 is installed at the upper end of the hollow mounting rod, and a fourth positioning nut is threaded to the upper end of the rod and fastened to the upper port of the cavity. The sensor terminal 16 is installed at the lower end of the hollow mounting rod, and a flange is provided at the lower end of the hollow mounting rod to cover the lower port of the cavity. The bottom surface of the steel plug cover 12 is connected to the upper end of the left support plate 18 and the upper end of the right support plate 19. The lower ends of the left support plate 18 and the right support plate 19 are connected to the protective plate 17.

[0053] This structure facilitates the electrical connection between the sensor terminal 16 and the pressure sensor 15, while the left support plate 18, the right support plate 19, and the protective plate 17 protect the sensor terminal 16.

[0054] In this embodiment, a reserved groove 20 is provided on the protective plate 17.

[0055] With this structure, the reserved slot 20 facilitates the connection of the sensor terminal 16.

[0056] In this embodiment, a horizontal upper welding groove 21 and a lower welding groove 22 parallel to the lower side of the fixing ring 1 are provided on the side. A vertical connecting groove 23 connects the upper welding groove 21 and the lower welding groove 22. A horizontal right welding groove 24 and a left welding groove 25 are also provided between the upper welding groove 21 and the lower welding groove 22. The right welding groove 24 and the left welding groove 25 are on the same straight line and are connected to the connecting groove 23.

[0057] This structure facilitates the welding of the fixing ring 1 with the welding gun.

[0058] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A detachable sealing tool for grouting steel pipes, characterized in that... include: A fixing ring (1) is circumferentially wrapped and fixed to the lower end of a steel pipe with grouting holes; The first positioning screw (2) consists of two sets, which are welded to both sides of the fixing ring (1); A steel plug cap (12) is installed on the lower end face of the steel pipe, and its outer diameter is larger than the inner diameter of the steel pipe; A steel pipe plug (14) is welded to the steel plug cap (12), and its outer diameter matches the inner diameter of the steel pipe. The steel pipe plug (14) extends into the end of the steel pipe. A sealing ring (13) is fitted onto the root of the steel pipe plug (14) and is pressed against the steel plug cover (12) by the end face of the steel pipe. The third positioning screw (10) consists of two sets, which are welded to both sides of the steel plug cover (12); The connecting plate (6) has a first positioning screw hole (7) on its upper part, which is adapted to the first positioning screw (2); and a third positioning screw hole (9) on its lower part, which is adapted to the third positioning screw (10). The first positioning nut (4) is threaded onto the first positioning screw (2) and presses the upper part of the connecting plate (6) onto the fixing ring (1); The third positioning nut (11) is threaded onto the third positioning screw (10) and presses the lower part of the connecting plate (6) onto the steel plug cover (12).

2. The detachable sealing tool for steel pipe grouting according to claim 1, characterized in that... The fixing ring (1) is also welded with a second positioning screw (3) on both sides. The second positioning screw (3) is located below the first positioning screw (2) and is parallel to the first positioning screw (2). The upper part of the connecting plate (6) is also provided with a second positioning screw eye (8). The second positioning screw eye (8) is located below the first positioning screw eye (7). The second positioning screw eye (8) is passed through by the second positioning screw (3). The second positioning screw (3) is threadedly connected to the second positioning nut (5).

3. The detachable sealing tool for steel pipe grouting according to claim 1, characterized in that... A pressure sensor (15) is installed at the top of the steel pipe plug (14); a sensor terminal (16) is fixedly connected at the middle position of the bottom end of the steel plug cover (12). The sensor terminal (16) is electrically connected to the pressure sensor (15). The wiring of the two is set in the cavity opened in the steel plug cover (12) and the steel pipe plug (14), and is located in the hollow mounting rod in the cavity. The pressure sensor (15) is installed at the upper end of the hollow mounting rod, and a fourth positioning nut is threaded to the upper end of the rod and fastened to the upper port of the cavity. The sensor terminal (16) is installed at the lower end of the hollow mounting rod, and a flange is provided at the lower end of the hollow mounting rod to cover the lower port of the cavity. The bottom surface of the steel plug cover (12) is connected to the upper end of the left support plate (18) and the upper end of the right support plate (19). The lower ends of the left support plate (18) and the right support plate (19) are connected to the protective plate (17).

4. The detachable sealing tool for steel pipe grouting according to claim 3, characterized in that... A pre-reserved groove (20) is provided on the protective plate (17).

5. The detachable sealing tool for steel pipe grouting according to claim 1, characterized in that... The fixing ring (1) has a horizontal upper welding groove (21) and a lower welding groove (22) parallel to the upper welding groove (21) on its side. The upper welding groove (21) and the lower welding groove (22) are connected by a vertical connecting groove (23). A horizontal right welding groove (24) and a left welding groove (25) are also provided between the upper welding groove (21) and the lower welding groove (22). The right welding groove (24) and the left welding groove (25) are on the same straight line and are connected to the connecting groove (23).

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