Embedded sealing strip for floating slab ballast bed
By using a combination of embedded sealing strips and buckle devices on the floating plate bed, the problems of complex construction and poor sealing of traditional sealing strips are solved, and the effects of simplifying construction, improving sealing properties and reducing the risk of expansion bolts falling off are achieved.
Patent Information
- Application Number
- CN202421965998.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-14
AI Technical Summary
Traditional seal strips have multiple expansion screws in the construction and operation of floating plate beds, resulting in a large number of construction processes, long working hours and high construction strength. The expansion screws are easy to loosen after the line is opened to traffic, resulting in the seal strip falling off and failing.
The embedded seal strip is used, and the seal is a flexible material. It is installed in the side seams of the floating plate by pressing and fixed to the tunnel wall with a buckle device to ensure that the seal does not break away from the seams.
The construction process is simplified, the working hours and construction strength are reduced, the sealing is improved, the problem of seal strips falling off, and the possibility of expansion bolts falling off later.
Smart Images
Figure CN222990497U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vibration isolation and noise reduction of rail transit, in particular to an embedded sealing strip for a floating plate track bed. Background Art
[0002] With the rapid development of central cities, the quality of urban life is constantly improving, and more and more subway lines are being planned and constructed. As one of the most effective technologies to reduce the impact of trains on the surrounding environment, floating slab track bed technology has also been widely used.
[0003] The spring floating slab roadbed is a vibration-damping roadbed that floats the concrete roadbed on spring supports. After the construction is completed, there is a 3cm gap between the bottom of the roadbed and the foundation surface layer and the tunnel wall. In order to prevent debris from entering the gap and affecting the overall vibration reduction effect of the roadbed, it is necessary to set a sealing strip to effectively block the debris.
[0004] Reference Figure 1 The traditional sealing strip is in the form of a strip, and expansion screws are used to drill holes on both sides of the sealing strip to fix it on the ballast and the tunnel wall. Six expansion screws are usually installed per meter of sealing strip. The traditional method has many construction processes, long working hours, and high construction intensity. After the line is opened to traffic, the expansion screws on the ballast side vibrate with the ballast and are easy to loosen, causing the sealing strip to fall off and fail. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an embedded sealing strip for floating slab track bed, which is made of flexible material and can be installed into the side seam of the floating slab simply by pressing. The strip seal is evenly pressed into the slab seam to completely cover the gap, which is simple and labor-saving to construct, and the sealing performance is much better than that of traditional sealing strips.
[0006] The above utility model object of the utility model is achieved through the following technical solutions:
[0007] An embedded sealing strip for a floating slab track bed comprises a sealing member which is used to be inserted into a gap between a side edge of the track bed and a tunnel wall to prevent foreign matter from entering.
[0008] As a further technical solution of the utility model: the sealing member is a strip-shaped flexible material.
[0009] As a further technical solution of the utility model: it also includes a plurality of clamping devices which are detachably fixedly connected to the sealing member, and the side of the clamping device away from the plate seam can be detachably fixed to the tunnel wall, and the clamping device is used to prevent the sealing member from being separated from the plate seam.
[0010] As a further technical solution of the utility model: the clamping device is a metal part or a non-metal part, which is fixed to the tunnel wall by expansion bolts.
[0011] As a further technical solution of the utility model: the cross section of the buckling device is in a "Z" shape, an "L" shape or a "凵" shape.
[0012] As a further technical solution of the present invention: the cross section of the sealing member is quadrilateral, and a slope is provided on one side of the sealing member.
[0013] As a further technical solution of the utility model: the surface of the sealing member is covered with a fireproof layer.
[0014] As a further technical solution of the utility model: a plurality of the buckling devices are evenly distributed on both sides of the floating plate, and the distances between two adjacent buckling devices are the same.
[0015] In summary, the present invention includes at least one of the following beneficial technical effects:
[0016] The utility model discloses an embedded sealing strip for a floating slab track bed, which includes a sealing member, which is made of a flexible material and can be installed into the side seam of the floating slab simply by pressing. The strip-shaped sealing member is evenly pressed into the slab seam to completely cover the gap, the construction is simple and labor-saving, and the sealing performance is much better than that of traditional sealing strips. A pressing device is used to hold the sealing member so that it will not fall out of the slab seam at a later stage.
[0017] The clamping device is fixed to the tunnel wall with expansion bolts. Compared with the traditional sealing strip, which requires the installation of expansion bolts on the floating plate and the tunnel wall respectively, it saves time and materials. It can also reduce the possibility of expansion bolts falling off later (the expansion bolts on the floating plate of the traditional sealing strip are very easy to loosen and fall off with the operation of the train). The new sealing strip is different from the traditional sealing strip and there is no risk of being stepped on and torn. The application of the new sealing strip to new lines and the rectification of existing lines not only greatly shortens the working hours, but is also more economical. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A schematic diagram of the cross-sectional structure of a sealing strip of a spring floating plate in the prior art;
[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0020] Figure 3 It is a schematic diagram of each component of the utility model;
[0021] Figure 4 It is the installation diagram of the utility model.
[0022] Figure numerals: 1. seal; 2. clamping device; 3. expansion bolt; 4. plate seam; 5. floating plate; 6. tunnel wall. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0024] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0025] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0026] Embodiment 1:
[0027] Referring to Figure 2 , an embedded sealing strip for a floating slab track bed disclosed in the present utility model includes a sealing member 1, and the sealing member 1 is used to be inserted into the gap between the side of the track bed and the tunnel wall to prevent sundries from entering.
[0028] In this embodiment, the sealing member 1 is a strip-shaped flexible material. Preferably, the sealing strip is a strip-shaped rubber material. Further, it also includes a plurality of buckling devices 2 detachably and fixedly connected to the sealing member 1. The side of the buckling device 2 away from the plate seam 4 is detachably and fixedly mounted on the tunnel wall, and the buckling device 2 is used to prevent the sealing member 1 from detaching from the plate seam 4. The buckling device 2 firmly restrains the side of the sealing member 1 away from the plate seam 4 to prevent the sealing member 1 from detaching from the plate seam 4 during the operation of the train.
[0029] The buckling device 2 is a metal part or a non-metal part and is fixed to the tunnel wall through an expansion bolt 3. Referring to Figure 3The cross section of the buckling device 2 is in the shape of "Z" or "L" or "凵". The cross section of the seal 1 is in the shape of a quadrilateral, and a slope is provided on one side of the seal 1. The surface of the seal 1 is covered with a fireproof layer, and the fireproof grade is Class A. The seal 1 is inserted into the side seam of the ballast bed of the floating plate 5, close to the gap between the ballast bed and the tunnel wall, and completely blocks the side seam of the ballast bed.
[0030] A plurality of crimping devices 2 are evenly distributed on both sides of the floating plate 5, and the spacing between two adjacent crimping devices 2 is the same. Two adjacent crimping devices 2 are controlled at a certain spacing and are evenly distributed on the side of the floating plate 5. The cross section of the flexible strip seal 1 is a trapezoid, and one side of the cross section is a bevel to form an acute angle, which is convenient for insertion into the plate seam 4. After the seal 1 is inserted into the plate seam 4, it is squeezed and tightly adheres to the floating plate 5 and the tunnel wall. The side seam of the floating plate 5 is sealed, and debris is effectively prevented from entering the gap. The side of the seal 1 away from the plate seam 4 is compacted by the crimping device 2. The crimping device 2 is fixed to the tunnel wall by the expansion bolt 3. The outer surface of the seal 1 has a fire protection grade of A, and the surface of the crimping device 2 is rust-proof.
[0031] Reference Figure 4 The side seams of the floating plate 5 are fully covered with sealing members 1, and the pressing devices 2 are evenly distributed on the sealing members 1 at intervals of 60 cm.
[0032] The implementation principle of the utility model is as follows: the utility model discloses an embedded sealing strip for a floating plate track bed, which includes a sealing member 1, which is made of a flexible material and can be installed into the side seam of a floating plate 5 by simply pressing. The strip-shaped sealing member 1 is evenly pressed into the plate seam 4 to completely cover the gap, which is simple and labor-saving to construct, and the sealing performance is much better than that of a traditional sealing strip. The sealing member 1 is then buckled with a buckling device 2 so that it does not fall off the plate seam 4 at a later stage.
[0033] The clamping device 2 is fixed to the tunnel wall with expansion bolts 3. Compared with the traditional sealing strip, the expansion bolts 3 need to be installed on the floating plate 5 and the tunnel wall respectively, which saves time and materials. It can also reduce the possibility of the expansion bolts 3 falling off at a later time (the expansion bolts 3 of the traditional sealing strip located on the floating plate 5 are very easy to loosen and fall off with the operation of the train). The new sealing strip is different from the traditional sealing strip and there is no risk of being stepped on and torn. The application of the new sealing strip to new lines and the rectification of existing lines not only greatly shortens the working hours, but is also more economical.
[0034] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. An embedded sealing strip for a floating slab track bed, characterized in that: It includes a seal (1) which is used to be stuffed into the gap between the side of the roadbed and the tunnel wall to prevent sundries from entering.
2. The embedded sealing strip for floating slab track bed according to claim 1, characterized in that: The seal (1) is a strip-shaped flexible material.
3. The embedded sealing strip for floating slab track bed according to claim 1, characterized in that: It also includes a plurality of buckling devices (2) detachably and fixedly connected to the seal (1). The side of the buckling device (2) away from the plate gap (4) is detachably and fixedly mounted on the tunnel wall, and the buckling device (2) is used to prevent the seal (1) from detaching from the plate gap (4).
4. The embedded sealing strip for floating slab track bed according to claim 3, characterized in that: The buckling device (2) is a metal part or a non-metal part and is fixed to the tunnel wall by an expansion bolt (3).
5. The embedded sealing strip for floating slab track bed according to claim 3, characterized in that: The cross-section of the buckling device (2) is in a "Z" shape or an "L" shape or a "凵" shape.
6. The embedded sealing strip for floating slab track bed according to claim 1, characterized in that: The cross-section of the seal (1) is quadrilateral, and one side of the seal (1) is provided with an inclined surface.
7. The embedded sealing strip for floating slab track bed according to claim 1, characterized in that: The surface of the seal (1) is covered with a fireproof layer.
8. The embedded sealing strip for floating slab track bed according to claim 3, characterized in that: A plurality of the buckling devices (2) are evenly distributed on both sides of the floating slab (5), and the distance between adjacent two buckling devices (2) is the same.