Pipe jacking hole sealing device

Abstract

The application provides a pipe jacking grouting hole sealing device, and relates to the technical field of pipe jacking grouting. The pipe jacking grouting hole sealing device comprises a sealing mechanism and a locking and sealing mechanism; the sealing mechanism comprises a sealing block, a connecting rod, a sealing push plate and an inner chamber arranged at the top of a grouting hole pipe, the sealing block is clamped with the side wall of the inner chamber; the sealing push plate is connected with the connecting rod, and the sealing push plate is located on the side of the sealing block close to the inside of the grouting hole pipe, the connecting rod is clamped with the sealing block; the locking and sealing mechanism comprises a first connecting flange, a second connecting flange, a sealing top cover and a first connecting structure arranged on the outer wall of the grouting hole pipe, one end of the first connecting flange is connected with the grouting hole pipe, and the other end is connected with the second connecting flange; the sealing top cover is installed on the second connecting flange; the second connecting flange is clamped and matched with the sealing block. The pipe jacking grouting hole sealing device provided by the application solves the technical problems of the traditional sealing mode, such as complicated operation, poor sealing performance and insufficient durability.

Description

Technical Field

[0001] This application relates to the field of pipe jacking grouting technology, and more specifically, to a pipe jacking grouting hole sealing device. Background Technology

[0002] During pipe jacking construction, grouting holes must be sealed promptly after grouting to prevent groundwater and mud leakage and instability of the pipe structure. Traditional sealing methods often involve manual plugging with cement grout or rubber plugs, which are cumbersome, have poor sealing performance, and lack durability. Utility Model Content

[0003] The purpose of this utility model is to provide a grouting hole sealing device for jacking pipes, so as to alleviate the technical problems of traditional sealing methods in the prior art, such as cumbersome operation, poor sealing performance and insufficient durability.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: The grouting hole sealing device provided by this utility model is applied to the top of the grouting hole pipe fixedly connected to the side wall of the jacking pipe, and includes a sealing mechanism and a locking and sealing mechanism. The sealing mechanism includes a sealing block, a connecting rod, a sealing push plate, and an inner cavity located at the top of the grouting hole pipe. The sealing block is located inside the inner cavity and is engaged with the side wall of the inner cavity. The sealing push plate is connected to the connecting rod and is located on the side of the sealing block closer to the inside of the grouting hole pipe. The connecting rod is engaged with the sealing block. The locking and sealing mechanism includes a first connecting flange, a second connecting flange, a sealing top cover, and a first connecting structure disposed on the outer wall of the top of the grouting hole pipe. One end of the first connecting flange is fitted onto the grouting hole pipe and is provided with a second connecting structure connected to the first connecting structure, while the other end is connected to the second connecting flange. The sealing top cover is installed on the second connecting flange. The second connecting flange engages with the sealing block.

[0005] Furthermore, the grouting hole pipe includes a sealing pipe section and a grouting pipe section, one end of the grouting pipe section is connected to the sealing pipe section, and the other end is connected to the jacking pipe; The sealing pipe section forms the inner cavity and has the first connection structure, and the diameter of the sealing pipe section is larger than the diameter of the grouting pipe section; The bottom wall of the plugging pipe section is engaged with the sealing block.

[0006] Furthermore, the bottom wall of the sealing pipe section is provided with a first insertion hole or a first insertion post, and correspondingly, the end wall of the sealing block facing the inside of the grouting hole pipe is provided with a first insertion post or a first insertion hole, and the first insertion post is inserted into the first insertion hole.

[0007] Furthermore, the diameter of the sealing pusher plate is equal to the diameter of the grouting pipe section.

[0008] Furthermore, the sealing block is provided with a through hole, and the connecting rod passes through the through hole and engages with the end face of the sealing block opposite to the sealing push plate.

[0009] Furthermore, one end of the connecting rod is connected to the sealing push plate, and the other end is equipped with a top sealing end; The top sealing end is provided with a second insertion hole or a second insertion post, and correspondingly, the end face of the sealing block opposite to the sealing push plate is provided with a second insertion post or a second insertion hole, and the second insertion post is inserted into the second insertion hole.

[0010] Furthermore, the first connecting structure is threadedly connected to the second connecting structure.

[0011] Furthermore, the second connecting flange is provided with a third insertion hole or a third insertion post, and correspondingly, the end face of the sealing block opposite to the sealing push plate is provided with a third insertion post or a third insertion hole, and the third insertion post is inserted into the third insertion hole.

[0012] Furthermore, the sealing top cover is fixedly connected to the second connecting flange.

[0013] Furthermore, the locking and sealing mechanism also includes a sealing gasket, which is sandwiched between the first connecting flange and the second connecting flange.

[0014] Based on the above technical solutions, the technical effects achievable by this utility model can be analyzed as follows: The grouting hole sealing device provided by this utility model is applied to the top of the grouting hole pipe fixedly connected to the side wall of the jacking pipe. It includes a sealing mechanism and a locking and sealing mechanism. The sealing mechanism includes a sealing block, a connecting rod, a sealing push plate, and an inner cavity located at the top of the grouting hole pipe. The sealing block is located in the inner cavity and is engaged with the side wall of the inner cavity. The sealing push plate is connected to the connecting rod and is located on the side of the sealing block closer to the inside of the grouting hole pipe. The connecting rod is engaged with the sealing block. The locking and sealing mechanism includes a first connecting flange, a second connecting flange, a sealing top cover, and a first connecting structure located on the outer wall of the top of the grouting hole pipe. One end of the first connecting flange is fitted with the grouting hole pipe and is provided with a second connecting structure connected to the first connecting structure. The other end is connected to the second connecting flange. The sealing top cover is installed on the second connecting flange. The second connecting flange is engaged with the sealing block.

[0015] The sealing mechanism includes an inner chamber located at the top of the grouting hole pipe. A sealing block is installed inside the inner chamber, which engages with the inner chamber to quickly complete the initial fixation and sealing, making installation convenient. A sealing push plate is fixedly connected to the bottom of the connecting rod, and the connecting rod engages with the sealing block to achieve secondary sealing of the grouting hole pipe by the sealing push rod, improving the sealing tightness. The overall structure has a multi-layered interlocking structure that works together to prevent the sealing components from shifting, ensuring long-term stable sealing of the grouting hole and reducing the risk of leakage.

[0016] The first connecting flange of the locking and sealing mechanism is installed on the top of the grouting hole pipe. A second connecting flange is installed on top of the first connecting flange, and a sealing cap is connected to the top of the second connecting flange. The top of the sealing block is engaged with the bottom wall of the second connecting flange. The first connecting flange is connected to the second connecting structure and the grouting hole pipe through the first connecting structure, which is a firm connection and easy to disassemble and maintain. The connection between the first and second connecting flanges enhances the top sealing effect, isolating external impurities and moisture. The connection between the sealing block and the second connecting flange forms multiple positioning, strengthens the overall structural stability, and prevents the sealing mechanism from loosening.

[0017] The sealing mechanism and locking mechanism of the grouting hole sealing device are sequentially assembled on the top surface of the grouting hole pipe. The sealing mechanism achieves initial sealing through the engagement of the sealing block with the inner cavity; the connecting rod drives the sealing push plate to engage with the sealing block to achieve secondary sealing, improving the tightness. The locking mechanism is connected by a first connecting flange and a second connecting flange. Combined with the positioning effect of the second connecting flange and the sealing block, it enhances the structural stability.

[0018] This pipe jacking grouting hole sealing device features a multi-layer snap-fit ​​and multi-seal design, making it easy to install, disassemble, and maintain. It effectively prevents displacement and leakage of sealing components, and is suitable for the long-term stable sealing requirements of grouting holes during pipe jacking construction. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an overall schematic diagram of the grouting hole sealing device for the jacking pipe provided in the embodiments of this application; Figure 2 This is a schematic diagram of the sealing mechanism in the grouting hole sealing device for jacking pipes provided in the embodiments of this application; Figure 3 A schematic diagram of the grouting hole pipe of the jacking pipe grouting hole sealing device provided in the embodiments of this application; Figure 4 This is a schematic diagram of the locking and sealing mechanism in the grouting hole sealing device for jacking pipes provided in the embodiments of this application; Figure 5 This is a schematic diagram of the locking and sealing mechanism in the grouting hole sealing device for jacking pipes provided in the embodiments of this application. Figure 6 A schematic diagram of the sealing block in the grouting hole sealing device for jacking pipe provided in the embodiments of this application; Figure 7 A schematic diagram of the top sealing end of the grouting hole sealing device provided in the embodiment of this application.

[0021] icon: 1-Pipe jacking; 2- Grouting hole pipe; 3-Blocking mechanism; 31-Inner chamber; 32-First insertion hole; 33-Sealing block; 34-First insertion post; 35-Through hole; 36-Connecting rod; 361-Top sealing end; 37-Sealing push plate; 38-Second insertion hole; 39-Second insertion post; 4-Locking and sealing mechanism; 41-First connecting structure; 42-First connecting flange; 43-Second connecting structure; 44-Second connecting flange; 45-Sealing top cover; 46-Third insertion post; 47-Third insertion hole; 48-Sealing gasket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] See Figures 1 to 6 The grouting hole sealing device provided in this embodiment of the utility model is applied to the top of the grouting hole pipe 2, which is fixedly connected to the side wall of the jacking pipe 1. It includes a sealing mechanism 3 and a locking and sealing mechanism 4. The sealing mechanism 3 includes a sealing block 33, a connecting rod 36, a sealing push plate 37, and an inner chamber 31 located at the top of the grouting hole pipe 2. The sealing block 33 is located inside the inner chamber 31 and is engaged with the side wall of the inner chamber 31. The sealing push plate 37 is connected to the connecting rod 36, and the sealing push plate 37 is located near the inside of the grouting hole pipe 2, close to the sealing block 33. On one side, the connecting rod 36 is engaged with the sealing block 33; the locking and sealing mechanism 4 includes a first connecting flange 42, a second connecting flange 44, a sealing top cover 45, and a first connecting structure 41 located on the outer wall of the top of the grouting hole pipe 2. One end of the first connecting flange 42 is fitted with the grouting hole pipe 2 and is provided with a second connecting structure 43 connected to the first connecting structure 41, and the other end is connected to the second connecting flange 44; the sealing top cover 45 is installed on the second connecting flange 44; the second connecting flange 44 is engaged with the sealing block 33.

[0026] Specifically, see Figure 1 and Figure 5 The grouting hole pipe 2 is fixed to the top right side of the jacking pipe 1, and the sealing mechanism 3 and the locking and closing mechanism 4 are sequentially assembled on the surface of the grouting hole pipe 2. The sealing mechanism 3 is provided inside the grouting hole pipe 2, and the locking and closing mechanism 4 is connected to the grouting hole pipe 2 and the sealing mechanism 3.

[0027] See Figure 2 and Figure 3 The sealing mechanism 3 includes an inner chamber 31, which is located at the top inside the grouting hole pipe 2. A sealing block 33 is installed inside the inner chamber 31. The sealing block 33 is snapped into the inner chamber 31 to quickly complete the initial fixation and sealing, making installation convenient. A sealing push plate 37 is fixedly connected to the bottom of the connecting rod 36. The connecting rod 36 is snapped into the sealing block 33 to achieve secondary sealing of the grouting hole pipe 2 by the sealing push rod, thereby improving the sealing tightness. The overall structure has a multi-layer snap-fit ​​structure that works together to prevent the sealing components from shifting, ensuring the long-term stable sealing of the grouting hole and reducing the risk of leakage.

[0028] See Figure 4 and Figure 5The first connecting flange 42 of the locking and sealing mechanism 4 is installed on the top of the grouting hole pipe 2. A second connecting flange 44 is installed on the top of the first connecting flange 42. A sealing top cover 45 is connected to the top of the second connecting flange 44, and the top of the sealing block 33 is engaged with the bottom wall of the second connecting flange 44. The first connecting flange 42 is connected to the second connecting structure 43 and the grouting hole pipe 2 through the first connecting structure 41, which is a firm connection and easy to disassemble and maintain. The connection between the first connecting flange 42 and the second connecting flange 44 enhances the top sealing effect, isolates external impurities and moisture, and the connection between the sealing block 33 and the second connecting flange 44 forms multiple positioning, strengthens the overall structural stability, and prevents the sealing mechanism 3 from loosening.

[0029] The sealing mechanism 3 and locking and sealing mechanism 4 of the grouting hole sealing device are sequentially assembled on the top surface of the grouting hole pipe 2. The sealing mechanism 3 achieves initial sealing by engaging the sealing block 33 with the inner cavity 31; the connecting rod 36 drives the sealing push plate 37 to engage with the sealing block 33 to achieve secondary sealing and improve tightness. The locking and sealing mechanism 4 is connected by a first connecting flange 42 and a second connecting flange 44. Combined with the positioning effect of the second connecting flange 44 and the sealing block 33, the structural stability is enhanced.

[0030] The grouting hole sealing device for jacking pipes features a multi-layer snap-fit ​​and multi-seal design, making it easy to install, disassemble, and maintain. It effectively prevents displacement and leakage of sealing components and meets the long-term stable sealing requirements of grouting holes during the construction of jacking pipe 1.

[0031] The structure and shape of the blocking mechanism 3 are described in detail below: In the optional solutions provided by the embodiments of this utility model, see Figure 2 and Figure 3 The grouting pipe 2 includes a sealing pipe section and a grouting pipe section. One end of the grouting pipe section is connected to the sealing pipe section, and the other end is connected to the jacking pipe 1. The sealing pipe section forms an inner cavity 31 and has a first connecting structure 41. The diameter of the sealing pipe section is larger than the diameter of the grouting pipe section. The bottom wall of the sealing pipe section is engaged with the sealing block 33.

[0032] Specifically, the sealing mechanism 3 includes an inner cavity 31 formed by the grouting pipe section, so that the inner cavity 31 is located at the top inside the grouting hole pipe 2.

[0033] The bottom wall of the sealing pipe section is engaged with the sealing block 33, so that the sealing block 33 is located inside the grouting hole pipe 2 and engaged with the inner wall of the grouting hole pipe 2.

[0034] In the optional solution provided by this utility model embodiment, the bottom wall of the sealing pipe section is provided with a first insertion hole 32 or a first insertion post 34, and correspondingly, the end wall of the sealing block 33 facing the inside of the grouting hole pipe 2 is provided with a first insertion post 34 or a first insertion hole 32, and the first insertion post 34 is inserted into the first insertion hole 32.

[0035] Specifically, the bottom wall of the sealing pipe section is provided with a first insertion hole 32, and correspondingly, the end wall of the sealing block 33 facing the inside of the grouting hole pipe 2 is provided with a first insertion post 34; or, the bottom wall of the sealing pipe section is provided with a first insertion post 34, and correspondingly, the end wall of the sealing block 33 facing the inside of the grouting hole pipe 2 is provided with a first insertion hole 32; wherein multiple first insertion posts 34 and multiple first insertion holes 32 are provided, the multiple first insertion posts 34 are spaced apart along the circumference of the grouting hole pipe 2, and the multiple first insertion holes 32 are inserted into the multiple first insertion posts 34 one by one. In this embodiment, see Figure 2 The inner cavity 31 has a first insertion hole 32 at the bottom, and a sealing block 33 is provided inside the inner cavity 31. A first insertion post 34 is fixedly connected to the bottom of the sealing block 33, and the first insertion post 34 is inserted into the first insertion hole 32.

[0036] The sealing block 33 is precisely connected to the first insertion hole 32 of the inner cavity 31 through the first insertion post 34, which quickly completes the initial fixation and sealing, making installation convenient.

[0037] In the optional embodiment of this utility model, the diameter of the sealing push plate 37 is equal to the diameter of the grouting pipe section.

[0038] Specifically, the sealing pusher plate 37 is located inside the grouting pipe section. The sealing pusher plate 37 is made of an elastic material such as sealing rubber.

[0039] The dimensions of the sealing push plate 37 match the bottom of the grouting hole pipe 2 to achieve secondary sealing and improve the tightness of the sealing.

[0040] In the optional solution provided by this utility model embodiment, the sealing block 33 is provided with a through hole 35, and the connecting rod 36 passes through the through hole 35 and is engaged with the end face of the sealing block 33 away from the sealing push plate 37.

[0041] Specifically, a through hole 35 is formed in the center of the sealing block 33, the connecting rod 36 is located inside the through hole 35, and a sealing push plate 37 is fixedly connected to the bottom of the connecting rod 36. It is worth noting that, see [link to previous section]... Figure 6 The length of the connecting rod 36 is greater than the length of the sealing block 33. The sealing block 33 is used to initially seal the pipe section. Initially, the sealing push plate 37 can be attached to the bottom of the sealing block 33, that is, the end of the connecting rod 36 away from the sealing push plate 37 extends out of the sealing block 33. After the grouting is completed, the connecting rod 36 is pushed to make the sealing push plate 37 seal the bottom of the grouting pipe section, and the end of the connecting rod 36 away from the sealing push plate 37 is engaged with the sealing block 33.

[0042] The connecting rod 36 passes through the through hole 35, allowing the position of the sealing push plate 37 to be easily adjusted from the outside of the grouting hole pipe 2 by controlling the connecting rod 36, which is convenient to operate; the connecting rod 36 and the sealing block 33 are engaged with the end face away from the sealing push plate 37, so that the engagement position of the connecting rod 36 and the sealing block 33 is located at the outer end of the grouting hole pipe 2, which facilitates the fixing of the connecting rod 36 and the sealing push plate 37.

[0043] In the optional solution provided by this utility model embodiment, one end of the connecting rod 36 is connected to the sealing push plate 37, and the other end is equipped with a top sealing end 361; the top sealing end 361 is provided with a second insertion hole 38 or a second insertion post 39, and correspondingly, the end face of the sealing block 33 facing away from the sealing push plate 37 is provided with a second insertion post 39 or a second insertion hole 38, and the second insertion post 39 is inserted into the second insertion hole 38.

[0044] Specifically, the top sealing end 361 is provided with a second insertion hole 38, and correspondingly, the end face of the sealing block 33 facing away from the sealing push plate 37 is provided with a second insertion post 39; or, the top sealing end 361 is provided with a second insertion post 39, and correspondingly, the end face of the sealing block 33 facing away from the sealing push plate 37 is provided with a second insertion hole 38. In this embodiment, the top sealing end 361 is fixedly connected with a second insertion post 39, the top of the sealing block 33 is provided with a second insertion hole 38, and the connecting rod 36 and the sealing push plate 37 are fixed to the second insertion hole 38 of the sealing block 33 through the second insertion post 39. Preferably, the top sealing end 361 is fixedly connected with a plurality of second insertion posts 39, and the plurality of second insertion posts 39 are arranged at intervals along the circumference of the grouting hole pipe 2; the top of the sealing block 33 is provided with a plurality of second insertion holes 38, and the plurality of second insertion holes 38 are inserted into the plurality of second insertion posts 39 one by one. Furthermore, on the end face projection of the sealing block 33, a plurality of first insertion posts 34 are arranged around the outer periphery of a plurality of second insertion holes 38, avoiding each other. See also Figure 7 In this embodiment, the top sealing end 361 is inserted into or threadedly connected to the connecting rod 36. During assembly, the top end of the connecting rod 36 extends upward from the bottom of the sealing block 33 and engages with or is threadedly connected to the top sealing end 361. Of course, the method of fixing the top sealing end 361 to the connecting rod 36 and then connecting the bottom end of the connecting rod 36 downward from the top of the sealing block 33 to the sealing push plate 37 should also be within the protection scope of this utility model embodiment.

[0045] The sealing mechanism 3 adopts a multi-layer plug-in structure to prevent the sealing components from shifting, ensuring long-term stable sealing of the grouting hole and reducing the risk of leakage.

[0046] In this sealing mechanism 3, the sealing block 33 is precisely connected to the first insertion hole 32 of the inner cavity 31 through the first insertion post 34, which quickly completes the initial fixation and sealing. The installation is convenient. The connecting rod 36 and the sealing push plate 37 are fixed to the second insertion hole 38 of the sealing block 33 through the second insertion post 39. The size of the sealing push plate 37 matches the bottom of the grouting hole pipe 2 to achieve secondary sealing and improve the sealing tightness. The overall structure has a multi-layered insertion structure that works together to avoid displacement of the sealing components, ensure long-term stable sealing of the grouting hole, and reduce the risk of leakage.

[0047] The structure and shape of the locking and closing mechanism 4 are described in detail below: In the optional solution provided by this utility model embodiment, the first connecting structure 41 and the second connecting structure 43 are threadedly connected.

[0048] Specifically, see Figure 4 The first connecting structure 41 is configured as an external connecting thread, which is opened at the top of the surface of the grouting hole pipe 2, that is, the outer wall of the sealing section pipe; the second connecting structure 43 is configured as an internal connecting thread, which is opened inside the first connecting flange 42.

[0049] The first connecting flange 42 is connected to the internal connecting thread and the grouting hole pipe 2 via the external connecting thread, which is secure and easy to disassemble and maintain.

[0050] In the optional solution provided by this utility model embodiment, the second connecting flange 44 is provided with a third insertion hole 47 or a third insertion post 46, and correspondingly, the end face of the sealing block 33 away from the sealing push plate 37 is provided with a third insertion post 46 or a third insertion hole 47, and the third insertion post 46 is inserted into the third insertion hole 47.

[0051] Specifically, the second connecting flange 44 is provided with a third insertion hole 47, and correspondingly, the end face of the sealing block 33 facing away from the sealing push plate 37 is provided with a third insertion post 46; or, the second connecting flange 44 is provided with a third insertion post 46, and correspondingly, the end face of the sealing block 33 facing away from the sealing push plate 37 is provided with a third insertion hole 47. In this embodiment, the top outer end of the sealing block 33 is fixedly connected with a third insertion post 46, and the bottom inner end of the second connecting flange 44 is provided with a third insertion hole 47, and the third insertion post 46 of the sealing block 33 is inserted into the third insertion hole 47 of the second connecting flange 44. Furthermore, the top outer end of the sealing block 33 is fixedly connected with multiple third insertion posts 46, and the multiple third insertion posts 46 are spaced apart circumferentially along the grouting hole pipe 2; the bottom inner end of the second connecting flange 44 is provided with multiple third insertion holes 47, and the multiple third insertion holes 47 are inserted into the multiple third insertion posts 46 one by one. Furthermore, on the end face projection of the sealing block 33, a plurality of third insertion posts 46 are arranged around the outer periphery of a plurality of second insertion holes 38, avoiding each other.

[0052] The third insertion post 46 of the sealing block 33 is inserted into the third insertion hole 47 of the second connecting flange 44 to form multiple positioning, which enhances the overall structural stability and prevents the sealing mechanism 3 from loosening.

[0053] In the optional embodiment of this utility model, the sealing top cover 45 is fixedly connected to the second connecting flange 44.

[0054] Specifically, a second connecting flange 44 is mounted on the top of the first connecting flange 42, and a sealing top cover 45 is fixedly connected to the top of the second connecting flange 44. The first connecting flange 42 and the second connecting flange 44 are flange-connected.

[0055] The sealing top cover 45 is fixedly connected to the second connecting flange 44 to enhance the connection performance.

[0056] In the optional solution provided by this utility model embodiment, the locking and sealing mechanism 4 further includes a sealing gasket 48, which is sandwiched between the first connecting flange 42 and the second connecting flange 44.

[0057] Specifically, a sealing gasket 48 is fixedly connected to the bottom outer end of the second connecting flange 44. The sealing gasket 48 further enhances the top sealing effect and isolates external impurities and moisture.

[0058] In the locking and sealing mechanism 4, the first connecting flange 42 is threadedly connected to the second connecting structure 43 and the grouting hole pipe 2 through the first connecting structure 41. The connection is firm and easy to disassemble and maintain. The first connecting flange 42 is connected to the second connecting flange 44 and equipped with a sealing gasket 48 to further enhance the top sealing effect and isolate external impurities and moisture. The third insertion post 46 of the sealing block 33 corresponds to the third insertion hole 47 of the second connecting flange 44, forming multiple positioning, strengthening the overall structural stability and preventing the sealing mechanism 3 from loosening.

[0059] The following is a detailed explanation of how to use the grouting hole sealing device for jacking pipes: In actual operation, the connecting rod 36 is inserted through the through hole 35 at the bottom of the sealing block 33, and then the top sealing end 361 is inserted into the top of the connecting rod 36 for port connection. The sealing block 33 is placed inside the inner cavity 31 and installed inside the inner cavity 31 through the first insertion post 34 and the first insertion hole 32. Then, the grouting operation is completed inside the jacking pipe 1. The connecting rod 36 is pushed to push the sealing push plate 37 to the bottom of the grouting hole pipe 2. The second insertion post 39 is inserted into the second insertion hole 38 for locking. The size of the sealing push plate 37 is exactly the same as the bottom of the grouting hole pipe 2. Thus, the sealing push plate 37 can prevent mud from entering the grouting hole pipe 2. At the same time, the mud inside the grouting hole pipe 2 can be cleaned during the pushing process, thereby sealing the grouting hole pipe 2, ensuring long-term stable sealing of the grouting hole, and reducing the risk of leakage.

[0060] Next, the first connecting flange 42 can be installed on the first connecting structure 41 on the surface of the grouting hole pipe 2 through the second connecting structure 43. Then, the third insertion post 46 is inserted into the third insertion hole 47 to achieve primary fixation. Then, the first connecting flange 42 and the second connecting flange 44 are connected by bolts to achieve secondary sealing, forming multiple positioning, strengthening the overall structural stability, and preventing the sealing mechanism 3 from loosening.

[0061] The sealing mechanism 3 connects the first insertion post 34 of the sealing block 33 to the first insertion hole 32 of the inner cavity 31 to complete the initial seal. The connecting rod 36 drives the sealing push plate 37 to achieve a secondary seal through the second insertion structure, improving the tightness. The locking and sealing mechanism 4 adopts a double flange connection, combined with threaded fixing and sealing gasket 48, and the positioning effect of the third insertion post 46 and the insertion hole enhances the structural stability. Through multi-layer insertion and multi-seal design, this device is easy to install, disassemble and maintain, and can effectively prevent the displacement and leakage of sealing components, meeting the long-term stable sealing requirements of grouting holes in the construction of pipe jacking 1.

[0062] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A grouting hole sealing device for a jacking pipe, applied to the top of a grouting hole pipe (2) fixedly connected to the side wall of a jacking pipe (1), characterized in that, include: The sealing mechanism (3) and the locking and closing mechanism (4); The sealing mechanism (3) includes a sealing block (33), a connecting rod (36), a sealing push plate (37), and an inner cavity (31) located at the top of the grouting hole pipe (2). The sealing block (33) is located inside the inner cavity (31) and is engaged with the side wall of the inner cavity (31). The sealing push plate (37) is connected to the connecting rod (36), and the sealing push plate (37) is located on the side of the sealing block (33) close to the inside of the grouting hole pipe (2). The connecting rod (36) is engaged with the sealing block (33). The locking and sealing mechanism (4) includes a first connecting flange (42), a second connecting flange (44), a sealing top cover (45), and a first connecting structure (41) disposed on the top outer wall of the grouting hole pipe (2). One end of the first connecting flange (42) is fitted onto the grouting hole pipe (2) and is provided with a second connecting structure (43) connected to the first connecting structure (41), and the other end is connected to the second connecting flange (44). The sealing top cover (45) is installed on the second connecting flange (44). The second connecting flange (44) engages with the sealing block (33).

2. The grouting hole sealing device for pipe jacking according to claim 1, characterized in that, The grouting pipe (2) includes a sealing pipe section and a grouting pipe section. One end of the grouting pipe section is connected to the sealing pipe section, and the other end is connected to the jacking pipe (1). The sealing pipe section forms the inner cavity (31) and has the first connecting structure (41), and the diameter of the sealing pipe section is larger than the diameter of the grouting pipe section; The bottom wall of the plugging pipe section is engaged with the sealing block (33).

3. The grouting hole sealing device for jacking pipes according to claim 2, characterized in that, The bottom wall of the sealing pipe section is provided with a first insertion hole (32) or a first insertion post (34). Correspondingly, the end wall of the sealing block (33) facing the inside of the grouting hole pipe (2) is provided with a first insertion post (34) or a first insertion hole (32). The first insertion post (34) is inserted into the first insertion hole (32).

4. The grouting hole sealing device for jacking pipes according to claim 3, characterized in that, The diameter of the sealing pusher plate (37) is equal to the diameter of the grouting pipe section.

5. The grouting hole sealing device for pipe jacking according to claim 1, characterized in that, The sealing block (33) is provided with a through hole (35), and the connecting rod (36) passes through the through hole (35) and is engaged with the end face of the sealing block (33) away from the sealing push plate (37).

6. The grouting hole sealing device for jacking pipes according to claim 5, characterized in that, One end of the connecting rod (36) is connected to the sealing push plate (37), and the other end is equipped with a top sealing end (361). The top sealing end (361) is provided with a second insertion hole (38) or a second insertion post (39). Correspondingly, the end face of the sealing block (33) away from the sealing push plate (37) is provided with a second insertion post (39) or a second insertion hole (38). The second insertion post (39) is inserted into the second insertion hole (38).

7. The grouting hole sealing device for pipe jacking according to any one of claims 1-6, characterized in that, The first connecting structure (41) is threadedly connected to the second connecting structure (43).

8. The grouting hole sealing device for jacking pipes according to claim 7, characterized in that, The second connecting flange (44) is provided with a third insertion hole (47) or a third insertion post (46). Correspondingly, the end face of the sealing block (33) away from the sealing push plate (37) is provided with a third insertion post (46) or a third insertion hole (47). The third insertion post (46) is inserted into the third insertion hole (47).

9. The grouting hole sealing device for pipe jacking according to claim 7, characterized in that, The sealing top cover (45) is fixedly connected to the second connecting flange (44).

10. The grouting hole sealing device for jacking pipes according to claim 7, characterized in that, The locking and sealing mechanism (4) further includes a sealing gasket (48), which is sandwiched between the first connecting flange (42) and the second connecting flange (44).

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