A seal brush mounting structure

Abstract

The utility model belongs to the shield construction sealing technical field discloses a kind of sealing brush installation structure, including annular installation component and the multiple groups of sealing brush being installed along annular installation component ring, multiple groups sealing brush include sealing brush one and the sealing brush two of installation gap between adjacent two sealing brush one, the width of installation gap is less than the width of sealing brush one, sealing brush one and sealing brush two all include bottom plate, brush body, pressboard and connecting assembly, and connecting assembly is connected together with bottom plate, brush body and pressboard are worn.The utility model can realize effective sealing, avoid the problem of sealing brush water and slurry leakage at joint, can also adapt to different installation gap, only need to process compatible bottom plate and pressboard, structure practical, easy to install.

Description

Technical Field

[0001] This utility model belongs to the field of shield tunneling sealing technology, specifically relating to a sealing brush installation structure. Background Technology

[0002] During shield tunneling, steel sleeves or extension sleeves are typically connected to the pre-embedded steel rings at the tunnel portal. Sealing is achieved through sealing brushes on the inner side of the steel sleeves or extension rings. As the shield diameter increases, the number of steel sleeve sections increases. The sealing brushes are prefabricated to standard dimensions in the factory and then installed onto the steel sleeves. However, during actual construction, the remaining space on each steel sleeve section is insufficient to install a standard sealing brush, and the width of the last remaining brush on each steel sleeve section is also inconsistent. This necessitates cutting the standard-sized sealing brushes to the required dimensions on-site. Such modified sealing brushes have low precision and poor sealing ability, resulting in inadequate sealing between steel sleeve sections after installation. Consequently, water and grout leakage frequently occurs at the steel sleeve joints. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a sealing brush installation structure to solve the problem of poor sealing that occurs when existing sealing brushes are installed on annular components such as sleeves.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A sealing brush mounting structure includes an annular mounting member and multiple sets of sealing brushes mounted circumferentially along the annular mounting member. The multiple sets of sealing brushes include a first sealing brush and a second sealing brush disposed in an mounting gap between two adjacent first sealing brushes. The width of the mounting gap is smaller than the width of the first sealing brush. Both the first sealing brush and the second sealing brush include a base plate, a brush body, a pressure plate, and a connecting assembly. The connecting assembly connects the base plate, the brush body, and the pressure plate together.

[0006] The brush body includes a spring plate. The width of the bottom plate and pressure plate of the second sealing brush is the same as the width of the installation gap. The width of the spring plate of the second sealing brush is greater than the width of the installation gap of the sealing brush. The second sealing brush is provided with an adjustment hole for the connecting assembly to pass through. The adjustment direction of the adjustment hole is parallel to the width direction of the brush body. The spring plate of the second sealing brush overlaps the spring plate of the first sealing brush.

[0007] In one possible implementation, the adjustment hole on the spring plate of the second sealing brush extends in the width direction so that it is simultaneously passed through by the connecting assembly of the first sealing brush.

[0008] In a possible implementation, the brush body further includes a steel wire bundle disposed between the upper and lower spring plates of the brush body.

[0009] In one possible implementation, the wire bundle is formed by folding and bending, with the bent end located outside the spring plate. A limiting member is provided inside the folded end of the wire bundle, and the limiting member and the spring plate form a limiting relationship.

[0010] In one possible implementation, the spring plate of the second sealing brush includes a sealing end that mates with the tail end of the wire bundle, the sealing end having a sealing flange on its side in the width direction that extends in the width direction to overlap the adjacent first sealing brush.

[0011] In a possible implementation, the connecting assembly includes multiple sets of fasteners, and both the base plate and the pressure plate are provided with several connecting holes for the fasteners to pass through.

[0012] In a possible implementation, the fastener includes a screw and a nut.

[0013] In one possible implementation, the adjustment hole is an elongated, waist-shaped hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The sealing brush installation structure of this utility model can seal the final installation gap by using an adjustable-width sealing brush, based on the size of the installation gap smaller than the standard sealing brush size left after the sealing brush is installed along the circumference of the annular installation component. The adjustable-width sealing brush can flexibly adjust the spring plate and make it overlap with the adjacent sealing brush. This can achieve effective sealing and avoid the problem of water and grout leakage at the joint. It can also adapt to different installation gaps. Only a matching base plate and pressure plate need to be processed. The structure is practical and easy to install.

[0016] Furthermore, the adjustable-width sealing brush, with its split structure, allows for easy sequential installation when placed in the installation gap, making the installation more convenient and adjustable.

[0017] Meanwhile, the steel wire bundle held between the upper and lower spring plates is prevented from being dragged and displaced during the sealing process by the setting of the limiting rod, thus improving the stability of the seal. Attached Figure Description

[0018] Figure 1 A schematic diagram of the installation gap for a sealing brush mounting structure;

[0019] Figure 2 A cross-sectional view of a sealing brush 2 in a sealing brush mounting structure;

[0020] Figure 3 This is a schematic diagram of the installation structure of a sealing brush mounting structure when the base plates of sealing brush one and sealing brush two are installed.

[0021] Figure 4 This is a schematic diagram of the installation structure of a sealing brush mounting structure when the spring plates of sealing brush one and sealing brush two are installed.

[0022] Figure 5 This is a schematic diagram of the installation structure of a sealing brush mounting structure when the pressure plates of sealing brush one and sealing brush two are installed.

[0023] Figure 6 This is a schematic diagram of the structure of a sealing brush mounting structure on the spring plate of sealing brush two.

[0024] In the diagram: 1-Sealing brush one; 2-Installation gap; 3-Base plate; 4-Spring plate; 41-Sealing end; 42-Sealing flange; 43-Adjustment hole one; 5-Wire bundle; 6-Pressure plate; 7-Connecting assembly; 71-Screw; 72-Nut; 8-Limiting component. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.

[0026] In existing technologies, such as Figure 1 As shown, when sealing brushes are installed on annular installation components such as steel sleeves, there is often a risk of installation due to size mismatch. This is because each sealing brush has a standard width. For example, the first sealing brush installed in a week and the last sealing brush installed all have a standard width of 200mm. However, the width of the remaining installation gap 2 is 100mm. In practice, the standard-sized sealing brushes are usually cut on-site to make the 200mm wide sealing brushes into 100mm wide sealing brushes so that they can be installed in the installation gap 2. However, the sealing brushes cut on-site are of poorer precision and sealing ability, resulting in reduced sealing performance and easy leakage of water and grout at the joint.

[0027] To solve the above technical problems, please refer to Figure 1-6As shown, an embodiment of this application provides a sealing brush mounting structure, including an annular mounting member (not shown) and multiple sets of sealing brushes mounted circumferentially along the annular mounting member. Each set of sealing brushes includes a first sealing brush 1 and a second sealing brush 2 located in a mounting gap 2 between two adjacent first sealing brushes 1. The width of the mounting gap 2 is less than the width of the first sealing brush 1. Both the first sealing brush 1 and the second sealing brush 2 include a base plate 3, a brush body, a pressure plate 6, and a connecting assembly 7. The connecting assembly 7 connects the base plate 3, brush body, and pressure plate 6 together. The brush body includes a spring plate 4. The width of the base plate 3 and pressure plate 6 of the second sealing brush is the same as the width of the mounting gap 2. The width of the spring plate 4 of the second sealing brush is greater than the width of the mounting gap 2. The second sealing brush has an adjustment hole 43 through which the connecting assembly 7 passes. The adjustment direction of the adjustment hole 43 is parallel to the width direction of the brush body. The spring plate 4 of the second sealing brush overlaps the spring plate 4 of the first sealing brush 1.

[0028] The sealing brush used for installation in the installation gap 2 is called sealing brush two. Its structure is basically the same as sealing brush one, but the dimensions of the base plate 3 and pressure plate 6 are different from those of sealing brush one, but they match the dimensions of the installation gap 2, allowing for seamless installation and better sealing. Sealing brush two and sealing brush one adopt a split structure, meaning the base plate 3, pressure plate 6, brush body, and connecting assembly 7 can all be disassembled for separation, facilitating sequential installation. The brush body can be a steel wire bundle 5 or a steel plate brush, without limitation, but both have a spring plate 4. The spring plate 4 of sealing brush two has an adjustment hole 43 for the connecting assembly 7 to pass through. The adjustment direction of the adjustment hole 43 is parallel to the width direction, facilitating the movement of the spring plate 4. Furthermore, the width of the spring plate 4 is greater than the width of the installation gap 2, allowing it to overlap with adjacent sealing brushes of two. This overlap provides better sealing, effectively preventing water leakage at the joints between sealing brushes. In the specific implementation process, the ring-shaped installation component can be any of the following: a steel sleeve, a transition ring, or a pre-embedded steel ring used for sleeve acceptance or initiation. The specific installation configuration can be determined according to the usage requirements.

[0029] It is understandable that the spring plate 4 of the sealing brush 2 can be attached to the two adjacent sealing brushes 1 on both sides, or it can be attached to only one of the sealing brushes 1. However, in the preferred embodiment, the spring plate 4 of the sealing brush 2 is attached to an adjacent sealing brush 1. This is convenient for installation and structural design, and also convenient for adjustment. Although it is possible to make some adjustments by attaching it to two sealing brushes 1 at the same time, the adjustment range is relatively small and requires more complex dimensional matching. Therefore, the former embodiment is more convenient for manufacturing and installation.

[0030] Through the above technical solution, an adjustable-width sealing brush can be used to seal the final installation gap 2, which is smaller than the standard sealing brush size, after the sealing brush is installed on the annular mounting component along the circumference. The adjustable-width sealing brush can flexibly adjust the spring plate 4 and make it overlap the adjacent sealing brush. This can achieve effective sealing, avoid the problem of water and grout leakage at the joint, and adapt to different installation gaps 2. Only the matching base plate 3 and pressure plate 6 need to be processed. The structure is practical and easy to install.

[0031] In one embodiment, the adjustment hole 43 on the spring plate 4 of the second sealing brush extends in the width direction so that it is simultaneously passed through by the connecting assembly 7 of the first sealing brush.

[0032] In this way, by extending the spring plate 4, which is wider than the spring plate 1, and extending the adjustment hole 43 on it, it is easier to cooperate with the connecting component 7 on the sealing brush 1. The adjustment hole 43, which has a larger adjustment range, can adjust the overlap length of the spring plate 4 of the sealing brush 2 on the sealing brush 1 over a wider range. For example, if the spring plate 4 of the sealing brush 2 is 200mm wide, its overlap width on the sealing brush 1 can be 100mm. However, in the actual implementation, it is not limited to overlapping on one side of the sealing brush 1. It can also overlap on both adjacent sealing brushes 1, with an overlap width of 50mm on each side. There is no limitation.

[0033] In one embodiment of the brush body, the brush body further includes a steel wire bundle 5, which is disposed between the upper and lower spring plates 4 of the brush body.

[0034] The brush body can be made of steel wire bundles 5, which are set between the upper and lower spring plates 4. The steel wire bundles 5 are also installed sequentially, and their width during installation is also equivalent to the width of the base plate 3 and the pressure plate 6. This makes it easy to install steel wire bundles 5 with appropriate bundle amount.

[0035] Since the sealing brush 2 adopts a split structure, the steel wire bundle 5 may be pulled during use. Based on the above-mentioned structure, the steel wire bundle 5 is formed by folding and bending, and the bent end is located outside the spring plate 4. A limiting member 8 is provided on the inner side of the folded end of the steel wire bundle 5, and the limiting member 8 and the spring plate 4 form a limiting relationship.

[0036] The steel wire bundle 5, held between the upper and lower spring plates 4, is prevented from being dragged and displaced during the sealing process by the setting of the limiting member 8, thereby improving the stability of the seal. Specifically, the limiting member 8 has a rod-shaped or shaft-shaped structure.

[0037] To achieve a better overlapping and sealing effect, the spring plate 4 of the second sealing brush includes a sealing end 41 that cooperates with the tail end of the wire bundle 5. The sealing end 41 has a sealing flange 42 extending in the width direction to overlap the adjacent sealing brush 1 on its side.

[0038] In this way, the sealing flange 42 extending from the sealing end 41 can assist in the overlapping seal, thus shortening the width of the fixed end of the spring plate 4, or even shortening it to the same width as the base plate 3. This facilitates better installation of the spring plate 4 and also reduces the width of the spring plate 4 itself. By increasing the width through the sealing flange 42 for sealing, the structural design is more reasonable.

[0039] In practical implementation, the connecting assembly 7 includes multiple sets of fasteners, and both the base plate 3 and the pressure plate 6 are provided with several connecting holes for the fasteners to pass through. Connecting via fasteners facilitates disassembly and installation, and offers strong versatility.

[0040] Specifically, the fastener includes a screw 71 and a nut 72. One end of the screw 71 is threaded into a connecting hole on the base plate 3, and the other end passes through the lower spring plate 4, the wire bundle 5, the upper spring plate 4 and the pressure plate 6 in sequence, and is then locked and fixed by the nut 72.

[0041] Preferably, the adjustment hole 43 is an oblong hole. The oblong hole facilitates adjustment in the width direction.

[0042] An embodiment of this application describes a sealing brush mounting structure, taking the spring plate 4 of sealing brush 2 overlapping one of the sealing brushes 1 as an example. The mounting method includes:

[0043] 1. Machin a base plate 3 for sealing brush 2, with a width of 100 mm, and machine 4 bolt holes in the base plate 3.

[0044] 2. Weld the base plate 3 of the standard-sized sealing brush 1 and the base plate 3 of the sealing brush 2 onto the inner wall of the steel sleeve.

[0045] 3. Install screws 71 on the base plates 3 of sealing brush 1 and sealing brush 2;

[0046] 4. Install spring steel plates on the base plates 3 of sealing brush 1 and sealing brush 2 respectively. The spring plate 4 is 200 mm wide, while the base plate 3 of sealing brush 2 is only 100 mm wide. Therefore, half of the width of the spring plate 4 on sealing brush 2 will overlap with the spring plate 4 on the base plate 3 of sealing brush 1. The spring plate 4 on the base plate 3 of sealing brush 2 can be adjusted arbitrarily according to the width of the base plate 3. By fixing the spring plate 4 on the base plate 3 of sealing brush 2 to a width of 200 mm, it will completely overlap the adjacent standard size base plate 3 of sealing brush 1.

[0047] 5. Bent sealing steel wire bundles 5 are laid on the spring plates 4 of sealing brush 1 and sealing brush 2. These steel wire bundles 5 are placed on the spring steel plate after being bent in half. A thin steel bar is added at the fold position as a limiter 8. In this way, when the entire sealing brush is completed, these steel wire bundles 5 can be prevented from being dragged, thereby avoiding displacement.

[0048] 6. Install the upper spring plate 4, pressure plate 6 and nut 72 in sequence.

[0049] 7. Cut off the excess screw 71 at the top of nut 72. The non-standard width sealing brush at the joint of the steel sleeve is now installed.

[0050] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A sealing brush mounting structure, characterized in that, The device includes an annular mounting component and multiple sets of sealing brushes installed circumferentially along the annular mounting component. The multiple sets of sealing brushes include a first sealing brush (1) and a second sealing brush located in the mounting gap (2) between two adjacent first sealing brushes (1). The width of the mounting gap (2) is smaller than the width of the first sealing brush (1). Both the first sealing brush (1) and the second sealing brush include a base plate (3), a brush body, a pressure plate (6), and a connecting assembly (7). The connecting assembly (7) connects the base plate (3), the brush body, and the pressure plate (6) together. The brush body includes a spring plate (4). The width of the bottom plate (3) and pressure plate (6) of the second sealing brush is the same as the width of the installation gap (2). The width of the spring plate (4) of the second sealing brush is greater than the width of the sealing brush installation gap (2). The second sealing brush is provided with an adjustment hole (43) for the connecting assembly (7) to pass through. The adjustment direction of the adjustment hole (43) is parallel to the width direction of the brush body. The spring plate (4) of the second sealing brush overlaps the spring plate (4) of the first sealing brush (1).

2. The sealing brush mounting structure as described in claim 1, characterized in that, The adjustment hole (43) on the spring plate (4) of the second sealing brush extends in the width direction so that the connecting assembly (7) of the first sealing brush (1) passes through it.

3. The sealing brush mounting structure as described in claim 1, characterized in that, The brush body also includes a steel wire bundle (5), which is disposed between the upper and lower spring plates (4) of the brush body.

4. The sealing brush mounting structure as described in claim 3, characterized in that, The steel wire bundle (5) is formed by folding and bending, and the bent end is located outside the spring plate (4). A limiting member (8) is provided on the inner side of the folded end of the steel wire bundle (5), and the limiting member (8) and the spring plate (4) form a limiting relationship.

5. The sealing brush mounting structure as described in claim 3, characterized in that, The spring plate (4) of the second sealing brush includes a sealing end (41) that mates with the tail end of the wire bundle (5). The sealing end (41) has a sealing flange (42) extending in the width direction to overlap the adjacent first sealing brush (1) on its side.

6. The sealing brush mounting structure as described in claim 1, characterized in that, The connecting assembly (7) includes multiple sets of fasteners, and both the base plate (3) and the pressure plate (6) are provided with several connecting holes for the fasteners to pass through.

7. The sealing brush mounting structure as described in claim 6, characterized in that, The fasteners include a screw (71) and a nut (72).

8. The sealing brush mounting structure as described in claim 1, characterized in that, The adjustment hole 1 (43) is an elongated, waist-shaped hole.

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