Self-compacting concrete formwork below track plate
By setting insert slots and limiting structures on the self-compacting concrete formwork under the track slab, the construction problem of adapting the formwork to different height sections is solved, and the versatility and cost savings of the formwork are achieved.
Patent Information
- Application Number
- CN202522626196.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-12-11
AI Technical Summary
Existing self-compacting concrete formwork is difficult to adapt to the construction needs of different height sections, resulting in low formwork reuse rate and high investment costs.
Design a self-compacting concrete formwork for track slabs, with slots for insert plates on the side formwork. The insert plates can be inserted and fixed by a limiting structure, allowing adjustment of the number and specifications of the insert plates to meet the grouting needs of different height sections.
It improves the versatility of the formwork, reduces material consumption and investment costs, and enables the same batch of formwork to meet the construction needs of various height sections.
Smart Images
Figure CN223793437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of track construction technology, and in particular to a self-compacting concrete formwork for track slabs. Background Technology
[0002] In the CRTSⅢ type slab track structure, a self-compacting concrete layer is provided between the track slab and the base, serving as an intermediate force-transfer layer between the track slab and the base. In existing self-compacting concrete construction processes, it is typically necessary to customize templates according to the design height of the current construction section, and to use these templates to limit and seal the perimeter of the self-compacting concrete filling layer. T-shaped mounting seats are then bolted to the lifting holes on both sides of the track slab. These T-shaped mounting seats are threadedly connected to fine-tuning claws, and the height of the track slab is precisely adjusted by rotating the fine-tuning claws. After the track slab is finely adjusted, self-compacting concrete is poured to form the self-compacting concrete layer, achieving a tight bond with the track base and track slab. The self-compacting concrete flows and self-compacts under its own weight, requiring no vibration.
[0003] Traditional formwork technology typically uses a fixed height design, which is difficult to adapt to the construction needs of different high-altitude sections. Custom-made formwork of corresponding specifications is required based on different heights and road conditions, resulting in low formwork reuse rates and high investment costs. Therefore, there is an urgent need to develop a self-compacting concrete formwork that can adapt to different pouring heights, achieving height-adjustable design and improving formwork versatility. Utility Model Content
[0004] The purpose of this utility model is to provide a self-compacting concrete formwork for track slabs, addressing the problem that existing general-purpose self-compacting concrete formwork cannot dynamically match the self-compacting concrete pouring conditions at different heights.
[0005] This utility model provides a self-compacting concrete formwork under a track slab, including side molds set on both sides of the track longitudinal direction. The side molds are provided with insert plate slots corresponding to the corresponding side lifting hole positions of the track slab. The insert plate slots open upwards, and limiting structures are provided on the opposite sides of the insert plate slots.
[0006] It also includes an insert plate for sealing the insert plate slot, the insert plate being inserted into the insert plate slot and engaging with the limiting structures on both sides.
[0007] Preferably, the limiting structure is disposed on the side of the side mold away from the track plate, and the limiting structure protrudes laterally from the side mold toward the side where the insert groove is located.
[0008] Preferably, the insert plate is provided with an L-shaped clip that mates with the limiting structure, the L-shaped clip forming a groove with the outer surface of the insert plate, and the limiting structure being embedded in the groove.
[0009] Preferably, the L-shaped clips are continuously arranged along the height direction of the insert plate.
[0010] Preferably, the number of insert plates is provided as several pieces, and the several pieces of insert plates are used to be inserted into the insert plate slot in sequence, and a joint can be formed between two adjacent pieces of insert plates.
[0011] Preferably, all the inserts have the same shape and are rectangular plates.
[0012] Preferably, the dimensions of several of the insert plates are set to be the same.
[0013] Preferably, the two adjacent insert plates are in a concave-convex fit.
[0014] Preferably, a sealing layer is provided between two adjacent insert plates.
[0015] Preferably, the self-compacting concrete formwork under the track slab further includes two parallel end molds, which are laterally connected to the side molds on both sides.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This utility model provides a self-compacting concrete formwork for track slabs. By opening insert plate slots on the side mold of the formwork corresponding to the hoisting holes of the track slab, it is possible to adapt to the pouring of self-compacting concrete at different heights by using insert plates of different heights. This achieves the effect that the same batch of formwork can be adapted to construction at various heights, improving the versatility of the formwork, greatly saving the amount of material for self-compacting formwork, and reducing investment costs. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the self-compacting concrete formwork under the track slab in an embodiment.
[0019] Figure 2 for Figure 1 Top view;
[0020] Figure 3 for Figure 2 Enlarged view of part A in the image;
[0021] Figure 4 This is a planar structural diagram of the insert plate;
[0022] Figure 5 This is a cross-sectional view of the insert plate;
[0023] Figure 6 This is a schematic diagram of another type of concave-convex fit structure between the insert plate and the insert plate groove;
[0024] Figure 7 A schematic diagram of the plan view when self-compacting concrete formwork is installed under the track slab;
[0025] Figure 8 A schematic diagram illustrating the adjustment process when applying self-compacting concrete formwork at different road heights.
[0026] Markings in the diagram: 1-Side mold; 11-Insertion plate groove; 12-Limiting structure; 2-Insertion plate; 21-L-shaped clamp; 3-Track plate; 31-Lifting hole; 4-End mold; 5-Corner mold. Detailed Implementation
[0027] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0028] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0029] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0030] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0031] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0032] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0033] Example
[0034] like Figures 1-5 As shown, a self-compacting concrete formwork for track slabs (hereinafter referred to as self-compacting formwork) includes side molds 1 set on both sides of the track longitudinal direction. The side molds 1 are provided with insert plate slots 11 corresponding to the positions of the corresponding side lifting holes 31 of the track slab 3. The insert plate slots 11 open upwards and can be used to accommodate the installation structure (i.e., T-shaped mounting base) of the track slab 3 and the fine adjustment claw. Limiting structures 12 are provided on opposite sides of the insert plate slots 11. It also includes insert plates 2 for sealing the insert plate slots 11. The insert plates 2 are inserted into the insert plate slots 11 and are engaged with the limiting structures 12 on both sides of the insert plate slots 11 to prevent the insert plates 2 from falling off under the pressure of concrete during the pouring process. By replacing the insert plates 2 with different specifications and sizes, or adjusting the number of insert plates 2, the insert plate slots 11 can be sealed at different heights, thereby adapting to different pouring heights of the self-compacting concrete.
[0035] In an optional embodiment, the limiting structure 12 is disposed on the side of the side mold 1 facing away from the track plate 3. The limiting structure 12 protrudes laterally from the side mold 1 toward the side where the insert plate groove 11 is located, and is used to limit the insert plate externally to prevent the insert plates on both sides from being squeezed off by the injected concrete grout. Distributing the limiting structure on the outside of the side mold helps to ensure a smooth and aesthetically pleasing surface of the self-compacting concrete layer. Preferably, the insert plate 2 is provided with an L-shaped clip 21 that mates with the limiting structure 12. A groove is formed between the L-shaped clip 21 and the outer surface of the insert plate 2, and the limiting structure 12 is embedded in the groove, which helps to ensure stable installation of the insert plate 2 and prevents it from falling off.
[0036] In an optional embodiment, the L-shaped clips 21 can be continuously arranged along the height direction of the insert plate 2. As another possible embodiment, multiple L-shaped clips 21 can be arranged along the height direction of the insert plate 2 and spaced apart. The L-shaped clips 21 can be fixedly connected to the insert plate 2, or the clips can be rotatably connected to the insert plate 2.
[0037] As another possible implementation, the limiting structure 12 can also be disposed on the two side walls of the insertion slot 11, for example, as a groove or a protrusion, such as... Figure 6 As shown, protrusions or grooves that slide in cooperation with the limiting structure 12 are provided on both sides of the insert plate 2 to keep the insert plate 2 stable and detachable in the insert plate groove 11, and are not limited to the above examples.
[0038] In an optional embodiment, a plurality of insert plates 2 are provided, which are sequentially inserted into the insert plate slot 11, and a joint can be formed between adjacent insert plates 2. The number of insert plates 2 can be adjusted to accommodate different pouring heights of the self-compacting concrete layer. The joint between adjacent insert plates 2 can be set as a straight line or a curved line, such as an arc, a sawtooth, or a wave, etc., with good sealing performance.
[0039] Preferably, in this embodiment, each insert plate 2 has the same shape and is made of rectangular plates. The joint between two adjacent insert plates 2 is straight, resulting in a simple structure, easy manufacturing, good versatility, and reduced processing costs. The dimensions of the insert plates 2 can be the same or different. The thickness of the insert plates 2 is preferably the same as the thickness of the side formwork 1, which helps to ensure a smooth surface of the poured self-compacting concrete layer.
[0040] In an optional embodiment, two adjacent insert plates 2 are fitted together with a concave-convex joint, and the splicing surfaces of the insert plates 2 are pressed together by the concave-convex surfaces, which helps to reduce the loss of concrete slurry. For example, the splicing surfaces of the insert plates 2 can be set in an L-shaped step shape.
[0041] In an optional embodiment, a sealing layer is provided between two adjacent insert plates 2 to improve the sealing performance between the two insert plates 2.
[0042] Furthermore, such as Figure 7 As shown, the self-compacting concrete formwork under the track slab also includes two parallel end molds 4, which are laterally connected to the side molds 1 on both sides.
[0043] In an optional embodiment, the self-compacting concrete formwork under the track slab also includes a corner mold 5 set at the corner. The corner mold 5 is located between the end mold 4 and the side mold 1 and is L-shaped. The corner mold 5 can be set as a rounded corner plate. The end mold 4 is detachably connected to the side mold 1 through the corner mold 5. The two end molds 4, the four corner molds 5 and the two side molds 1 enclose a rectangle.
[0044] In use, the self-compacting template is installed on the track base. The sealing height of the insert plate 2 is adjusted according to the road conditions and the thickness of the self-compacting concrete layer to be poured, ensuring the self-compacting template seamlessly surrounds the outside of the track slab 3. A cavity is formed between the track slab 3 and the track base. The distance between the bottom surface of the track slab 3 and the track base is the thickness h of the self-compacting concrete layer to be poured. The insert plate groove 11 on the side mold 1 of the self-compacting template corresponds to the lifting hole 31 on the track slab 3. The track slab 3 is fixed by multiple clamping and locking devices and fine-tuning claws. Self-compacting concrete is poured through the middle hole of the track slab 3. Depending on road conditions, when the thickness h of the self-compacting concrete layer to be poured is less than the height of the self-compacting template, the installation structure of the track slab 3 and the fine-tuning claws can be lowered using the space at the notch of the insert plate groove 11, allowing the self-compacting template to fit tightly against the outside of the track slab 3. Figure 8 As shown.
[0045] This solution pre-reserves a slot 11 for insert plates at the formwork location of the hoisting hole 31. With the help of insert plates 2 of different heights, it can adapt to the pouring of self-compacting concrete at different heights. This achieves the effect that the same batch of formwork can be adapted to construction at various heights. The formwork has high versatility, which can greatly improve the reuse rate of the same batch of formwork, save the amount of self-compacting formwork material, and reduce investment costs.
[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A self-compacting concrete formwork for track slabs, characterized in that, Includes side molds (1) set on both sides of the longitudinal direction of the track. The side molds (1) are provided with insert plate slots (11) corresponding to the positions of the corresponding side lifting holes (31) of the track plate (3). The insert plate slots (11) open upwards, and the opposite sides of the insert plate slots (11) are provided with limiting structures (12). It also includes a plug plate (2) for sealing the plug plate slot (11), the plug plate (2) being plugged into the plug plate slot (11), and the plug plate (2) being snapped into the limiting structure (12) on both sides.
2. The self-compacting concrete formwork under the track slab according to claim 1, characterized in that, The limiting structure (12) is located on the side of the side mold (1) away from the track plate (3), and the limiting structure (12) protrudes laterally from the side mold (1) toward the side where the insert groove (11) is located.
3. The self-compacting concrete formwork under the track slab according to claim 2, characterized in that, The insert plate (2) is provided with an L-shaped clip (21) that is in concave-convex cooperation with the limiting structure (12). The L-shaped clip (21) can form a groove with the outer surface of the insert plate (2), and the limiting structure (12) is embedded in the groove.
4. The self-compacting concrete formwork under the track slab according to claim 3, characterized in that, The L-shaped clip (21) is continuously arranged along the height direction of the insert plate (2).
5. The self-compacting concrete formwork under the track slab according to claim 1, characterized in that, The number of insert plates (2) is provided as several pieces, and several insert plates (2) are used to be inserted into the insert plate slot (11) in sequence, and a joint can be formed between two adjacent insert plates (2).
6. The self-compacting concrete formwork under the track slab according to claim 5, characterized in that, All the inserts (2) have the same shape and are rectangular plates.
7. The self-compacting concrete formwork under the track slab according to claim 6, characterized in that, The dimensions of several of the insert plates (2) are set to be consistent.
8. The self-compacting concrete formwork under the track slab according to claim 5, characterized in that, The two adjacent insert plates (2) are fitted together with a concave-convex fit.
9. The self-compacting concrete formwork under the track slab according to claim 5, characterized in that, A sealing layer is provided between two adjacent insert plates (2).
10. The self-compacting concrete formwork under the track slab according to any one of claims 1-9, characterized in that, It also includes two parallel end molds (4), which are laterally connected to the side molds (1) on both sides.