Duct piece hand hole plugging and template fixing device based on suspender embedded sleeve

Abstract

The utility model relates to a segment hand hole plugging and template fixing device based on a suspender embedded sleeve. The segment hand hole plugging and formwork fixing device based on the suspender embedded sleeve comprises the embedded sleeve, a suspender and a formwork supporting mechanism. The embedded sleeve is nested at the bottom of a hand hole of a duct piece, internal threads are arranged in the embedded sleeve, the formwork supporting mechanism is mounted at an opening of the hand hole through the hanging rod, one end of the hanging rod is in threaded connection with the embedded sleeve, the other end of the hanging rod is located on the outer side of the formwork supporting mechanism and is in threaded connection with an end nut, and the hanging rod is further sleeved with a middle nut. The middle nut is located in the hand hole. Damage of a traditional drilling fixing mode to the segment structure is avoided, and the construction efficiency and stability are improved; the plugging mechanism is filled with micro-expansive concrete and is combined with a water stop ring, so that the plugging strength and the waterproof performance are effectively improved, the long-term stability of hand hole plugging is ensured, and the construction convenience, the applicability and the waterproof reliability are improved.

Description

Technical Field

[0001] This application relates to the field of tunnel construction technology, and in particular to a segment manhole sealing and formwork fixing device based on a pre-embedded sleeve for a hanger. Background Technology

[0002] During tunnel and underground utility tunnel construction, precast concrete segments typically require manholes for hoisting, connection, or maintenance. However, existing manhole sealing methods mainly rely on filling with concrete or sealant, which are prone to leakage or insufficient sealing strength. Furthermore, formwork fixing usually requires additional drilling or welding of support structures, which not only compromises the integrity of the segments but also increases construction complexity. Therefore, an integrated solution is urgently needed to achieve efficient sealing and stable formwork fixing. Utility Model Content

[0003] To address or partially address the problems existing in related technologies, this application provides a segment manhole sealing and template fixing device based on a pre-embedded sleeve on a hanger, which can improve sealing strength and waterproof performance, ensure the long-term stability of manhole sealing, and avoid damage to the segment structure caused by traditional drilling fixing methods.

[0004] This application provides a segment manhole sealing and template fixing device based on a pre-embedded sleeve of a hanger rod, including a pre-embedded sleeve 3, a hanger rod 4, and a template support mechanism 7; the pre-embedded sleeve 3 is nested at the bottom of the manhole 2 of the segment 1, and the interior of the pre-embedded sleeve 3 is provided with internal threads. The template support mechanism 7 is installed at the opening of the manhole 2 through the hanger rod 4. One end of the hanger rod 4 is threadedly connected to the pre-embedded sleeve 3, and the other end is located outside the template support mechanism 7 and is threadedly connected to an end nut 6. A middle nut 8 is also sleeved on the hanger rod 4 and is located inside the manhole 2.

[0005] Optionally, in some embodiments, the outer wall of the pre-embedded sleeve 3 is filled with sealing material between it and the inner wall of its mounting hole, and a water-stop ring 5 is provided between the end of the pre-embedded sleeve 3 and the opening of the mounting hole, with the water-stop ring 5 fitted around the outside of the hanger rod 4.

[0006] Optionally, in some embodiments, the axis of the pre-embedded sleeve 3 is perpendicular to the surface of the segment 1.

[0007] The technical solution provided in this application may include the following beneficial effects:

[0008] This application achieves integrated functions of manhole sealing and formwork fixing by pre-embedding sleeves during the segment prefabrication stage. The gap between the sleeve and the manhole is filled with sealing material to form a structural seal, which, combined with an external water-stop ring, provides a double waterproofing effect. This device avoids the damage to the segment structure caused by traditional drilling fixing methods, improving construction efficiency and stability. The hanger assembly is detachable, and the formwork is reusable, reducing construction costs. The sealing mechanism uses micro-expansion concrete filling, combined with a water-stop ring, to effectively improve sealing strength and waterproofing performance, ensuring the long-term stability of the manhole sealing and improving construction convenience, applicability, and waterproofing reliability.

[0009] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0010] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0011] Figure 1 This is a schematic diagram of the installation structure of the segment manhole sealing and template fixing device based on the pre-embedded sleeve of the hanger, as shown in the embodiments of this application;

[0012] Figure 2 This is a schematic diagram of the installation structure of the boom shown in the embodiment of this application.

[0013] Figure label:

[0014] 1-Segment, 2-Handhole, 3-Embedded sleeve, 4-Hanging rod, 5-Waterstop ring, 6-End nut, 7-Formwork support mechanism, 8-Middle nut. Detailed Implementation

[0015] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0016] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0017] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0018] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] To address the aforementioned issues, this application provides a segment manhole sealing and template fixing device based on a pre-embedded sleeve on a hanger, which can improve sealing strength and waterproof performance, ensure the long-term stability of the manhole sealing, and avoid damage to the segment structure caused by traditional drilling fixing methods.

[0020] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0021] See Figure 1-2 The segment manhole sealing and template fixing device based on the pre-embedded sleeve of the hanger includes a pre-embedded sleeve 3, a hanger 4, and a template support mechanism 7. The pre-embedded sleeve 3 is nested at the bottom of the manhole 2 of the segment 1. The pre-embedded sleeve 3 has an internal thread. The template support mechanism 7 is installed at the opening of the manhole 2 through the hanger 4. One end of the hanger 4 is threadedly connected to the pre-embedded sleeve 3, and the other end is located outside the template support mechanism 7 and is threadedly connected to an end nut 6. A middle nut 8 is also fitted on the hanger 4 and is located inside the manhole 2.

[0022] During operation, the embedded sleeve 3 is made of metal or composite material and has a threaded structure inside. It is embedded inside the handhole 2 during the prefabrication of the segment 1 to ensure integration with the segment 1 structure and thus ensure structural stability. One end of the hanger 4 is connected to the embedded sleeve 3 and further positioned by the middle nut 8, while the other end is connected to the template support mechanism 7 by the end nut 6, enabling rapid installation and removal of the template. The connection length of the hanger 4 can be adjusted according to construction needs to accommodate templates of different thicknesses, improving construction flexibility. The template fixing component uses a nut locking method, which works in conjunction with the threaded structure inside the embedded sleeve 3, eliminating the need for additional drilling, avoiding damage to the segment 1 structure, and improving construction efficiency. The template is reusable and can be removed by loosening the hanger 4 and the end nut 6. The sealing structure is permanently retained inside the segment 1, achieving standardized construction and is suitable for underground tunnels, integrated utility tunnels, and prefabricated structure construction.

[0023] In some embodiments, the outer wall of the pre-embedded sleeve 3 is filled with sealing material between it and the inner wall of its mounting hole, and a water-stop ring 5 is provided between the end of the pre-embedded sleeve 3 and the opening of the mounting hole, with the water-stop ring 5 fitted around the outside of the hanger rod 4.

[0024] During operation, a water-stop ring is installed on the outside of the pre-embedded sleeve 3 to enhance the sealing performance of the sealing system. The sealing material is micro-expansion concrete, which is filled in the gap between the manhole 2 and the pre-embedded sleeve 3 to form a high-strength sealing layer. Combined with the external water-stop ring 5, a double sealing structure is formed to improve the waterproof effect and prevent leakage.

[0025] In some embodiments, the axis of the pre-embedded sleeve 3 is perpendicular to the surface of the segment 1.

[0026] During operation, the pre-embedded sleeve 3 is installed during the prefabrication stage of the segment 1. The axis of the pre-embedded sleeve 3 is perpendicular to the surface of the segment 1 to ensure accurate positioning during subsequent construction and improve the stability of the template installation.

[0027] The working process of this application:

[0028] During the segment prefabrication process, the pre-embedded sleeve 3 is inserted into the manhole 2, ensuring its axis is perpendicular to the surface of segment 1. During sealing, sealing material is injected into the gap between the pre-embedded sleeve 3 and the manhole 2. During construction, the hanger 4 is screwed into the pre-embedded sleeve 3 and fixed by rotation, further positioned by the central nut 8. Combined with the external water-stop ring, a high-strength, double-waterproof sealing layer is formed. The exposed end of the hanger 4 is used to connect to the formwork support system. After construction is completed, the formwork can be disassembled by loosening the end nut 6, and the pre-embedded sleeve 3 remains permanently inside segment 1. This device integrates the sealing of the manhole 2 of segment 1 with formwork fixing using the pre-embedded sleeve 3 structure, reducing traditional sealing procedures and avoiding damage to the segment 1 structure from additional drilling. It is suitable for the efficient construction needs of underground tunnels, integrated utility tunnels, and other prefabricated assembled structures.

[0029] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0030] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0031] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A pipe segment hand hole plugging and formwork fixing device based on a suspender embedded sleeve, characterized in that: The pipe piece hand hole plugging and formwork fixing device based on the suspender pre-buried sleeve comprises a pre-buried sleeve (3), a suspender (4), and a formwork support mechanism (7); the pre-buried sleeve (3) is nested at the bottom of a hand hole (2) of a pipe piece (1), the inside of the pre-buried sleeve (3) is provided with an internal thread, the formwork support mechanism (7) is installed at the opening of the hand hole (2) through the suspender (4), one end of the suspender (4) is threadedly connected with the pre-buried sleeve (3), the other end is outside the formwork support mechanism (7) and is threadedly connected with an end nut (6), and a middle nut (8) is further nested on the suspender (4), and the middle nut (8) is inside the hand hole (2).

2. The boom pre-embedded sleeve based segment handhole plugging and formwork fixing device according to claim 1, characterized in that: The outer wall of the pre-buried sleeve (3) is filled with a plugging material between the inner wall of the mounting hole, a water stop ring (5) is arranged between the end of the pre-buried sleeve (3) and the opening of the mounting hole, and the water stop ring (5) is nested outside the suspender (4).

3. The boom pre-embedded sleeve based segment handhole plugging and formwork fixing device according to claim 1 or 2, characterized in that: The axis of the pre-buried sleeve (3) is perpendicular to the surface of the pipe piece (1).

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