Foundation pit pre-embedded type double-liquid grouting leaking stoppage structure

Abstract

The utility model relates to the field of foundation pits, in particular to a foundation pit embedded type double-liquid grouting leaking stoppage structure which comprises a main leaking stoppage cover used for conducting secondary leaking stoppage on a foundation pit embedded type double-liquid grouting pipe and an installation block arranged outside the main leaking stoppage cover and used for connecting and installing the main leaking stoppage cover and an external foundation pit, and a positioning bolt penetrates through the upper portion of the installation block. According to the foundation pit embedded type double-liquid grouting leaking stoppage structure, the main leaking stoppage cover, the inner supporting frame, the fixing screw rod, the pressing block, the pipe sleeve plate, the upper leaking stoppage plate and the pipe opening expansion plug are arranged, and when the foundation pit embedded type double-liquid grouting leaking stoppage structure is used, the upper leaking stoppage plate can be installed above the pipe sleeve plate through the fixing clamping groove and the fixing clamping block after grouting is completed; the upper leaking stoppage plate can firmly block pipe openings of the first grouting pipe and the second grouting pipe through two sets of pipe opening expansion plugs and reinforcing sealing rings, then the main leaking stoppage cover is installed outside the upper leaking stoppage plate, and a fixing screw is twisted to enable a pressing block to be pressed downwards to abut against the upper leaking stoppage plate.

Description

Technical Field

[0001] The utility model relates to the field of foundation pits, and particularly relates to a pre-buried type double-fluid grouting leakage plugging structure for foundation pits. Background Technique

[0002] A foundation pit is an earth pit excavated at the designed position of the foundation according to the base elevation and the foundation plane size. The foundation pit is mainly used for foundation construction to provide a construction space. According to the different excavation depths and construction conditions, foundation pits can be divided into two categories: unshored foundation pits and shored foundation pits. Unshored foundation pits are applicable to occasions where the foundation is buried shallowly, the construction period is short, and the safety of adjacent buildings is not affected. Shored foundation pits are applicable to situations where the construction site is restricted or adjacent buildings need to be protected. During the construction of the foundation pit, pre-buried type double-fluid grouting refers to injecting a slurry formed by mixing two mixed liquids through a special mixer into the voids of the object to be solidified through the grouting pipes arranged in the concrete structure. A leakage plugging structure is required after the grouting is about to end.

[0003] After retrieval, a pre-buried type double-fluid grouting leakage plugging structure with the publication number of CN218521827U includes a fixing block. A stabilizing mechanism is arranged outside the fixing block. The stabilizing mechanism includes two rotating sleeves. An expanding component is arranged on the outer surface of the rotating sleeve. The outer surface of one rotating sleeve is fixedly connected through the inside of the fixing block. The inner surface of one rotating sleeve is rotatably connected with a pin rod. A rotating groove is arranged on the outer surface of the pin rod. The inner surface of the rotating groove is rotatably connected with a rotating ring. The outer surface of the rotating ring is fixedly connected with the inner surface of one rotating sleeve. One end of the pin rod is fixedly connected with a screw rod. The utility model relates to the technical field of foundation pit enclosure anti-seepage and leakage plugging construction, and solves the problem that when the existing pre-buried type double-fluid grouting leakage plugging structure for foundation pits is actually used, due to the contact area between the fixing rod and the ground and the small contact friction force, the fixing rod is prone to tilt when subjected to external forces, thereby reducing the overall stability of the device.

[0004] During the use of the existing pre-buried type double-fluid grouting leakage plugging structure for foundation pits, since the leakage plugging structure only plugs the leakage through a sleeve rod or a cover, such a leakage plugging structure is too simple and lacks tightness, and it is easy to cause leakage after the pre-buried type double-fluid grouting for foundation pits. Moreover, the above comparative case also lacks methods to enhance the tightness and the stability of the leakage plugging structure. In this way, not only the requirements for pre-buried type double-fluid grouting leakage plugging for foundation pits cannot be met after long-term use, but also the grouting penetration will affect the surrounding foundation pit construction.

[0005] Therefore, it is very necessary to invent a pre-buried type double-fluid grouting leakage plugging structure for foundation pits to solve the above problems. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a double-fluid grouting leakage plugging structure for foundation pit pre-embedding type. Through the main leakage plugging cover, inner support frame, fixing screw, pressing block, pipe sleeve plate, upper leakage plugging plate and pipe orifice expansion plug, the leakage plugging strength and sealing performance of the double-fluid grouting leakage plugging structure for foundation pit pre-embedding type for the first grouting pipe and the second grouting pipe are enhanced. Moreover, it also meets the requirements of double-fluid grouting leakage plugging for foundation pit pre-embedding type, reduces the probability of grouting penetration, ensures the normal construction effect of the foundation pit, so as to solve the problems in the prior art that during the use of the double-fluid grouting leakage plugging structure for foundation pit pre-embedding type, since the leakage plugging structure only plugs the leakage through the sleeve rod or the cover, such a leakage plugging structure is too simple and lacks sealing performance, and it is easy to cause leakage after double-fluid grouting for foundation pit pre-embedding type. And in the above comparative cases, there is also a lack of methods to enhance the sealing performance and the stability of the leakage plugging structure. In this way, after long-term use, it not only cannot meet the requirements of double-fluid grouting leakage plugging for foundation pit pre-embedding type, but also will cause grouting penetration, thus affecting the surrounding foundation pit construction.

[0007] To achieve the above purpose, the present utility model provides the following technical solutions: A double-fluid grouting leakage plugging structure for foundation pit pre-embedding type, including a main leakage plugging cover, which is used for secondary leakage plugging of the double-fluid grouting pipe for foundation pit pre-embedding type;

[0008] An installation block is arranged outside the main leakage plugging cover and is used for connecting and installing the main leakage plugging cover and the external foundation pit. And a positioning bolt penetrates through the upper part of the installation block. An inner support frame is fixedly installed inside the main leakage plugging cover. A fixing screw penetrates through the upper part of the inner support frame, and one end of the fixing screw is fixedly installed with a pressing block;

[0009] A foundation pit pre-embedding sleeve plate is arranged below the main leakage plugging cover and is used for connecting and installing the grouting pipe. And a fixing bolt penetrates through the upper part of the foundation pit pre-embedding sleeve plate. One end of the fixing bolt is movably connected with a pipe sleeve plate. A fixing card slot is formed on the surface of the pipe sleeve plate. A fixing card block is movably connected inside the fixing card slot, and one end of the fixing card block is fixedly installed with an upper leakage plugging plate;

[0010] An embedded groove is arranged inside the upper leakage plugging plate and is used for enhancing the sealing ability of the upper leakage plugging plate. And a pipe orifice expansion plug is fixedly installed inside the embedded groove. A reinforcing sealing ring is arranged outside the pipe orifice expansion plug. A first grouting pipe is fixedly installed inside the pipe sleeve plate, and a second grouting pipe is arranged on one side of the first grouting pipe.

[0011] Preferably, the pressing block is movably connected with the main leakage plugging cover, and the center line of the inner support frame coincides with the center line of the fixing screw.

[0012] Preferably, the fixing card block fixedly installed at the bottom of the upper leakage plugging plate is in snap-fit connection with the fixing card slot formed on the surface of the pipe sleeve plate, and the fixing card block and the fixing card slot are used in cooperation.

[0013] Preferably, the reinforcing sealing ring is movably connected to the pipe orifice expansion plug, and the pipe orifice expansion plugs are symmetrically arranged with respect to the central axis of the upper plugging plate.

[0014] Preferably, a reinforcing pipe sleeve is arranged outside the first grouting pipe, a clamping jaw is fixedly installed outside the reinforcing pipe sleeve, and slurry outlet holes are formed in the outside of the first grouting pipe.

[0015] Preferably, the number of the clamping jaws is multiple, and the multiple clamping jaws are distributed in a circular array on the reinforcing pipe sleeve.

[0016] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0017] 1. The present utility model is provided with a main plugging cover, an inner support frame, a fixing screw, a pressing block, a pipe sleeve plate, an upper plugging plate and a pipe orifice expansion plug. When using the double-fluid grouting plugging structure for foundation pit embedding, after grouting is completed, the upper plugging plate can be installed above the pipe sleeve plate through the fixing card slot and the fixing block. The upper plugging plate can firmly block the orifices of the first grouting pipe and the second grouting pipe through two groups of pipe orifice expansion plugs and the reinforcing sealing ring. Then, the main plugging cover is installed outside, and the fixing screw is turned to make the pressing block press down against the upper plugging plate. This not only strengthens the plugging strength and sealing performance of the double-fluid grouting plugging structure for foundation pit embedding for the first grouting pipe and the second grouting pipe, but also meets the requirements of double-fluid grouting plugging for foundation pit embedding, reduces the probability of grouting penetration, and ensures the normal construction of the foundation pit.

[0018] 2. The present utility model is provided with a foundation pit embedding sleeve plate, fixing bolts, a pipe sleeve plate, a first grouting pipe, a reinforcing pipe sleeve, clamping jaws, slurry outlet holes and a second grouting pipe. When using the double-fluid grouting plugging structure for foundation pit embedding, the fixing bolts are simple to operate, facilitating the quick installation of the pipe sleeve plate, the first grouting pipe and the second grouting pipe into the foundation pit embedding sleeve plate. Moreover, after the first grouting pipe and the second grouting pipe penetrate into the foundation pit, the upper and lower reinforcing pipe sleeves and clamping jaws strengthen the stability of the first grouting pipe and the second grouting pipe in the foundation pit, ensuring the normal operation of the device for double-fluid grouting plugging for foundation pit embedding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the structure of the fixing screw of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of the upper plugging plate of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of the reinforced sealing ring of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of the second grouting pipe of the present utility model.

[0025] Explanation of reference numerals:

[0026] 1. Main plugging cover; 2. Installation block; 3. Positioning bolt; 4. Inner support frame; 5. Fixed screw; 6. Compression block; 7. Foundation pit embedded sleeve plate; 8. Fixed bolt; 9. Pipe sleeve plate; 10. Fixed card slot; 11. Fixed card block; 12. Upper plugging plate; 13. Embedded groove; 14. Pipe orifice expansion plug; 15. Reinforced sealing ring; 16. First grouting pipe; 17. Reinforcement pipe sleeve; 18. Claw; 19. Grout outlet hole; 20. Second grouting pipe. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further introduced in detail below in conjunction with the drawings.

[0028] The present utility model provides a Figures 1-5 kind of foundation pit embedded type double-fluid grouting plugging structure as shown in the figure, including a main plugging cover 1 for secondary plugging of the foundation pit embedded type double-fluid grouting pipe;

[0029] An installation block 2 is arranged outside the main plugging cover 1 for connecting and installing the main plugging cover 1 and the external foundation pit, and a positioning bolt 3 penetrates through the upper part of the installation block 2. An inner support frame 4 is fixedly installed inside the main plugging cover 1, a fixed screw 5 penetrates through the upper part of the inner support frame 4, and one end of the fixed screw 5 is fixedly installed with a compression block 6;

[0030] A foundation pit embedded sleeve plate 7 is arranged below the main plugging cover 1 for connecting and installing the grouting pipe, and a fixed bolt 8 penetrates through the upper part of the foundation pit embedded sleeve plate 7. One end of the fixed bolt 8 is movably connected with a pipe sleeve plate 9. A fixed card slot 10 is formed on the surface of the pipe sleeve plate 9, a fixed card block 11 is movably connected inside the fixed card slot 10, and one end of the fixed card block 11 is fixedly installed with an upper plugging plate 12;

[0031] The embedded groove 13 is arranged inside the upper plugging plate 12 to enhance the sealing ability of the upper plugging plate 12. A pipe orifice expansion plug 14 is fixedly installed inside the embedded groove 13, and a reinforcing sealing ring 15 is arranged outside the pipe orifice expansion plug 14. A first grouting pipe 16 is fixedly installed inside the pipe sleeve plate 9. A second grouting pipe 20 is arranged on one side of the first grouting pipe 16. After grouting is completed, the upper plugging plate 12 is installed above the pipe sleeve plate 9 through the fixing card slot 10 and the fixing block 11. The upper plugging plate 12 can firmly block the pipe orifices of the first grouting pipe 16 and the second grouting pipe 20 through the two pipe orifice expansion plugs 14 and the reinforcing sealing ring 15.

[0032] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the pressing block 6 is movably connected to the main plugging cover 1. The center line of the inner support frame 4 coincides with the center line of the fixing screw 5. The main plugging cover 1 is installed externally. The fixing screw 5 is twisted to make the pressing block 6 press down against the upper plugging plate 12. In this way, the plugging strength and sealing performance of the pre-buried double-fluid grouting plugging structure for the foundation pit for the first grouting pipe 16 and the second grouting pipe 20 are enhanced. The fixing block 11 fixedly installed at the bottom of the upper plugging plate 12 is engaged with the fixing card slot 10 opened on the surface of the pipe sleeve plate 9. The fixing block 11 and the fixing card slot 10 are used in cooperation. The structure of the fixing card slot 10 and the fixing block 11 is simple, which is convenient for quickly installing the upper plugging plate 12. The reinforcing sealing ring 15 is movably connected to the pipe orifice expansion plug 14. The pipe orifice expansion plugs 14 are symmetrically arranged with respect to the central axis of the upper plugging plate 12. The reinforcing sealing ring 15 and the pipe orifice expansion plug 14 can seal the inside and outside of the pipe orifice, ensuring the sealing performance of the pre-buried double-fluid grouting plugging structure for the foundation pit.

[0033] As Figure 1 , Figure 4 and Figure 5 shown, a reinforcing pipe sleeve 17 is arranged outside the first grouting pipe 16. A clamping jaw 18 is fixedly installed outside the reinforcing pipe sleeve 17. A slurry outlet hole 19 is opened on the outside of the first grouting pipe 16. After the first grouting pipe 16 and the second grouting pipe 20 penetrate into the foundation pit, the upper and lower reinforcing pipe sleeves 17 and clamping jaws 18 enhance the stability of the first grouting pipe 16 and the second grouting pipe 20 in the foundation pit, ensuring the normal operation of the device for pre-buried double-fluid grouting in the foundation pit. The number of the clamping jaws 18 is set to be multiple, and the multiple clamping jaws 18 are arranged in a circular array on the reinforcing pipe sleeve 17. The manufacturing costs of the clamping jaws 18 and the reinforcing pipe sleeve 17 are low. If a failure occurs, it is convenient for maintenance personnel to replace them in time without delaying the normal use of the device.

[0034] Working principle of this utility model: First, take out the device, insert the first grouting pipe 16 and the second grouting pipe 20 into the foundation pit. Quickly install the pipe sleeve plate 9, the first grouting pipe 16 and the second grouting pipe 20 in the foundation pit embedded sleeve plate 7 through the fixing bolts 8. Then, after the first grouting pipe 16 and the second grouting pipe 20 penetrate into the foundation pit, the upper and lower reinforcement pipe sleeves 17 and the clamping claws 18 enhance the stability of the first grouting pipe 16 and the second grouting pipe 20 in the foundation pit, ensuring the normal operation of the device for the double-fluid grouting work of the foundation pit embedding type. Next, start the external grouting machine to grout the first grouting pipe 16 and the second grouting pipe 20. After the grouting is completed, the leak plugging work can be started. Install the leak plugging plate 12 above the pipe sleeve plate 9 through the fixing card slots 10 and the fixing blocks 11. Subsequently, the upper leak plugging plate 12 can firmly block the pipe orifices of the first grouting pipe 16 and the second grouting pipe 20 through the two groups of pipe orifice expansion plugs 14 and the reinforcing sealing rings 15. Then, install the main leak plugging cover 1 externally, twist the fixing screw rod 5 to make the pressing block 6 press down and abut against the upper leak plugging plate 12. Then, twist the positioning bolt 3 outside the main leak plugging cover 1 to enhance the stability of the main leak plugging cover 1. In this way, not only the use of the double-fluid grouting leak plugging structure of the foundation pit embedding type is completed, but also the leak plugging strength and sealing performance of the double-fluid grouting leak plugging structure of the foundation pit embedding type for the first grouting pipe 16 and the second grouting pipe 20 are enhanced. Finally, after completing all the installation and use work of the double-fluid grouting leak plugging structure of the foundation pit embedding type according to the above operations, maintain the device daily. Just like this, the use process of the double-fluid grouting leak plugging structure of the foundation pit embedding type is completed.

[0035] Only some exemplary embodiments of the present utility model are described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A double-fluid grouting leakage plugging structure embedded in a foundation pit, characterized in that: including a main plugging cover (1) for secondary plugging of the foundation pit embedded double-fluid grouting pipe; a mounting block (2) arranged outside the main plugging cover (1) for connecting and installing the main plugging cover (1) with the external foundation pit. A positioning bolt (3) penetrates through the upper part of the mounting block (2). An inner support frame (4) is fixedly installed inside the main plugging cover (1). A fixing screw rod (5) penetrates through the upper part of the inner support frame (4). One end of the fixing screw rod (5) is fixedly installed with a pressing block (6); a foundation pit embedded sleeve plate (7) arranged below the main plugging cover (1) for connecting and installing the grouting pipe. A fixing bolt (8) penetrates through the upper part of the foundation pit embedded sleeve plate (7). One end of the fixing bolt (8) is movably connected with a pipe sleeve plate (9). A fixing card slot (10) is formed on the surface of the pipe sleeve plate (9). A fixing card block (11) is movably connected inside the fixing card slot (10). One end of the fixing card block (11) is fixedly installed with an upper plugging plate (12); an embedded groove (13) arranged inside the upper plugging plate (12) for enhancing the sealing ability of the upper plugging plate (12). A pipe orifice expansion plug (14) is fixedly installed inside the embedded groove (13). A reinforcing sealing ring (15) is arranged outside the pipe orifice expansion plug (14). A first grouting pipe (16) is fixedly installed inside the pipe sleeve plate (9). A second grouting pipe (20) is arranged on one side of the first grouting pipe (16).

2. The double-fluid grouting leakage plugging structure embedded in the foundation pit according to claim 1, characterized in that: The pressing block (6) is movably connected with the main plugging cover (1). The central axis of the inner support frame (4) coincides with the central axis of the fixing screw rod (5).

3. The double-fluid grouting and leakage plugging structure embedded in the foundation pit according to claim 1, characterized in that: The fixing card block (11) fixedly installed at the bottom of the upper plugging plate (12) is snap-fitted with the fixing card slot (10) formed on the surface of the pipe sleeve plate (9). The fixing card block (11) and the fixing card slot (10) are used in cooperation.

4. A double-fluid grouting leakage plugging structure embedded in a foundation pit according to claim 1, characterized in that: The reinforcing sealing ring (15) is movably connected with the pipe orifice expansion plug (14). The pipe orifice expansion plug (14) is symmetrically arranged with respect to the central axis of the upper plugging plate (12).

5. The double-fluid grouting plugging structure embedded in the foundation pit according to claim 1, characterized in that: A reinforcing pipe sleeve (17) is arranged outside the first grouting pipe (16). Claws (18) are fixedly installed outside the reinforcing pipe sleeve (17). A slurry outlet hole (19) is formed on the outside of the first grouting pipe (16).

6. A double-fluid grouting leakage plugging structure embedded in a foundation pit according to claim 5, characterized in that: The number of the claws (18) is set to be multiple. The multiple claws (18) are distributed in a circular array on the reinforcing pipe sleeve (17).

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