A concrete sleeper pouring mold

By designing a detachable concrete sleeper casting mold, the problems of existing molds being difficult to disassemble and having poor vibration effects were solved, enabling convenient transportation of the mold and high-quality casting of the sleepers, thereby improving the stability and service life of the sleepers.

CN224374403UActive Publication Date: 2026-06-19CCCC THIRD HARBOR ENGINEERING CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC THIRD HARBOR ENGINEERING CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing concrete sleeper casting molds are difficult to disassemble, leading to difficulties in demolding. Furthermore, the pre-embedded steel reinforcement cages affect the effect of vibrating concrete, making it difficult to guarantee the quality and stability of the sleepers.

Method used

An integral mold composed of a first mold body and a second mold body was designed. It is equipped with transverse and longitudinal ribs, splicing plates, mold end plates and a detachable vibrator to realize the detachable connection of the mold and the vibration of the concrete, thereby ensuring the stability of the mold and the compactness of the concrete.

Benefits of technology

This enabled convenient disassembly and transportation of the molds, ensuring the quality and stability of the sleepers, improving the density of the concrete, and extending the service life and operational safety of the sleepers.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a concrete sleeper casting mold, comprising an integral mold with a sleeper casting cavity, formed by splicing a first mold body and a second mold body; a set of transverse ribs and multiple sets of longitudinal ribs symmetrically arranged on the outer surface of the integral mold; a splicing plate located at the connection between the first mold body and the second mold body and extending outward; mold end plates detachably connected to both ends of the integral mold; and multiple vibrators detachably installed on the bottom outer wall of the sleeper casting cavity. The concrete sleeper casting mold of this utility model has a detachable structure, which not only saves space and facilitates transportation in batches, but also has a simple connection structure, allowing for quick and convenient assembly and disassembly, facilitating demolding after concrete curing. The vibrators can vibrate the concrete in the sleeper casting cavity during casting, ensuring the density of the concrete and thus guaranteeing the quality of the sleeper.
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Description

Technical Field

[0001] This utility model relates to the field of railway equipment manufacturing mold technology, and in particular to a concrete sleeper casting mold. Background Technology

[0002] With the continuous development of industry and the increasing demand for fast and convenient travel, heavy-haul railways and high-speed railways are also experiencing a period of rapid development. Track is a crucial infrastructure in railway construction, and a sound track structure is an important guarantee for safe, reliable, comfortable, and efficient railway operation.

[0003] The sleeper is a key component of the track structure, ensuring the stable and rapid operation of trains. Its main functions include two aspects: firstly, bearing the loads from the rails in all directions and transmitting them to the underlying track bed; secondly, effectively maintaining the geometric shape of the railway line, such as track gauge and alignment.

[0004] Concrete sleepers are characterized by high load-bearing capacity, strong stability, and good track smoothness, making them one of the mainstream railway types worldwide. Their manufacturing process typically involves welding steel plates together to form a sleeper casting mold. However, this welded mold shell cannot be disassembled or moved, making demolding difficult after the concrete has hardened. In existing technology, to enhance sleeper strength and extend its service life, a reinforcing cage is usually pre-embedded inside the sleeper. However, once the reinforcing cage is placed in the casting mold, it becomes difficult to use conventional immersion vibrators to vibrate the concrete within the mold. Utility Model Content

[0005] In view of this, the present invention provides a concrete sleeper casting mold, which solves the technical problems mentioned in the background art.

[0006] This utility model solves the above problems through the following technical means:

[0007] The concrete sleeper casting mold of this utility model includes an integral mold with a sleeper casting cavity, which is spliced ​​from a first mold body and a second mold body; a set of transverse ribs and multiple sets of longitudinal ribs symmetrically arranged on the outer surface of the integral mold; a splicing plate arranged at the connection between the first mold body and the second mold body and extending outward; a mold end plate detachably connected to both ends of the integral mold; and multiple vibrators detachably installed on the bottom outer wall of the sleeper casting cavity.

[0008] Preferably, the bottom of the plurality of longitudinal ribs is flush with the outer edge of the splicing plate.

[0009] Preferably, the bottom of the mold end plate is flush with the outer edge of the splicing plate.

[0010] Preferably, the first mold body and the second mold body are provided with connecting plates at both ends for detachably connecting the mold end plates.

[0011] Preferably, the connecting plate and the mold end plate are connected by bolts.

[0012] As a further improvement to the above technical solution, the upper ends of the first mold body and the second mold body are provided with outwardly protruding horizontal plates along the length direction, and the top surface of the horizontal plates is set higher than the top of the opening of the sleeper casting cavity.

[0013] Preferably, the inner bottom edges of the two horizontal plates are welded and fixed to the outer top edges of the first mold body and the second mold body, respectively.

[0014] Preferably, the inner edges of the two horizontal plates are inclined outwards and form an angle with the upper surfaces of the first mold body and the second mold body.

[0015] As a further improvement to the above technical solution, two strip-shaped pre-embedded holes are provided at the bottom of the sleeper casting cavity.

[0016] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0017] The concrete sleeper casting mold of this utility model has a detachable structure for the first mold body, the second mold body, and the two mold end plates. This not only saves space and facilitates transportation during batch transport, but also has a simple connection structure, making assembly and disassembly quick and convenient, and facilitating demolding after concrete curing. A set of transverse ribs and multiple sets of longitudinal ribs symmetrically arranged on the outer surface of the overall mold not only strengthen the first mold body and the second mold body, but also provide grid support for the overall mold at the bottom, ensuring overall stability. Multiple vibrators installed on the bottom outer wall of the sleeper casting cavity can vibrate the concrete in the sleeper casting cavity during casting, ensuring the compactness of the concrete and thus ensuring the quality of the sleeper. Attached Figure Description

[0018] Figure 1 This is a perspective view of the concrete sleeper casting mold of this utility model;

[0019] Figure 2 A perspective view of the overall mold of the concrete sleeper casting mold of this utility model;

[0020] Figure 3 This is a schematic diagram of the concrete sleeper casting mold of this utility model;

[0021] Figure 4 for Figure 3Top view;

[0022] Figure 5 for Figure 3 The cross-sectional view at point AA.

[0023] like Figures 1-5 The components are: integral mold-1, first mold body-11, second mold body-12, sleeper casting cavity-13, pre-embedded reserved hole-14, transverse rib plate-2, longitudinal rib plate-3, splicing plate-4, mold end plate-5, vibrator-6, connecting plate-7, bolt-8, and horizontal plate-9. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "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. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figures 1 to 5 As shown: The concrete sleeper casting mold described in this embodiment includes an integral mold 1 with a sleeper casting cavity 13, which is spliced ​​from a first mold body 11 and a second mold body 12; a set of transverse ribs 2 and multiple sets of longitudinal ribs 3 symmetrically arranged on the outer surface of the integral mold 1; a splicing plate 4 arranged at the connection between the first mold body 11 and the second mold body 12 and extending outward; a mold end plate 5 detachably connected to both ends of the integral mold 1; and multiple vibrators 6 detachably installed on the bottom outer wall of the sleeper casting cavity 13.

[0027] The concrete sleeper casting mold described in this embodiment has a detachable structure for the first mold body 11, the second mold body 12, and the two mold end plates 5. This not only saves space and facilitates transportation during batch transport, but also has a simple connection structure, making assembly and disassembly quick and convenient, and facilitating demolding after concrete curing. A set of transverse ribs 2 and multiple sets of longitudinal ribs 3 symmetrically arranged on the outer surface of the overall mold 1 not only strengthen the first mold body 11 and the second mold body 12, but also provide grid support for the overall mold 1 at its bottom, ensuring overall stability. Multiple vibrators 6 installed on the bottom outer wall of the sleeper casting cavity 13 can vibrate the concrete in the sleeper casting cavity 13 during casting, ensuring the compactness of the concrete and thus ensuring the quality of the sleeper.

[0028] In a preferred embodiment of this invention, the bottom of the plurality of longitudinal ribs 3 is flush with the outer edge of the splicing plate 4. This structure makes the outer edge of the overall bottom surface smooth and without protrusions, which is more aesthetically pleasing and safer.

[0029] In a preferred embodiment of this invention, the bottom of the mold end plate 5 is flush with the outer edge of the splicing plate 4, providing support for the overall mold 1 from both ends and the middle, thereby further enhancing stability.

[0030] For ease of installation, in a preferred embodiment of this invention, the first mold body 11 and the second mold body 12 are provided with connecting plates 7 at both ends for detachably connecting the mold end plates 5.

[0031] In the above embodiments, the connecting plate 7 and the mold end plate 5 are specifically connected by bolts 8. In practical applications, they can also be connected by a pull-in connection structure and a snap-fit ​​connection structure.

[0032] As a further improvement of this embodiment, the upper ends of the first mold body 11 and the second mold body 12 are provided with outwardly protruding horizontal plates 9 along the length direction. The top surface of the horizontal plate 9 is set higher than the top edge of the opening of the sleeper pouring cavity 13. The position of the horizontal plate 9 can control the amount of concrete poured, and a small amount of excess concrete will slide onto the horizontal plate 9, preventing concrete from falling onto the pouring site and causing excessive concrete accumulation. At the same time, the height difference between the horizontal plate 9 and the top edge of the opening of the sleeper pouring cavity 13 provides a limiting plane for workers to smooth the concrete surface, thereby improving the quality of the sleeper.

[0033] In the above embodiments, a further preferred embodiment is that the inner bottom edges of the two horizontal plates 9 are welded and fixed to the outer top edges of the first mold body 11 and the second mold body 12, respectively, thereby ensuring the maximization of the height difference.

[0034] In the above embodiments, a further preferred embodiment is that the inner edges of the two horizontal plates 9 are inclined outwards and form an angle with the upper surfaces of the first mold body 11 and the second mold body 12. The setting of the two angles can serve as slots to limit the smoothing tool, thereby improving the smoothing efficiency and effect, and further improving the quality of the sleeper.

[0035] As a further improvement to this embodiment, the bottom of the sleeper casting cavity 13 is provided with two strip-shaped pre-embedded reserved holes 14, which can fix the pre-embedded bolts 8 at appropriate positions as needed, making it more practical and convenient.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A concrete sleeper casting mold, characterized in that: The system includes an integral mold with a sleeper casting cavity, which is formed by splicing a first mold body and a second mold body; a set of transverse ribs and multiple sets of longitudinal ribs symmetrically arranged on the outer surface of the integral mold; a splicing plate located at the connection between the first mold body and the second mold body and extending outward; mold end plates detachably connected to both ends of the integral mold; and multiple vibrators detachably installed on the bottom outer wall of the sleeper casting cavity.

2. The concrete sleeper casting mold according to claim 1, characterized in that: The bottom of the plurality of longitudinal ribs is flush with the outer edge of the splicing plate.

3. The concrete sleeper casting mold according to claim 2, characterized in that: The bottom of the mold end plate is flush with the outer edge of the splicing plate.

4. The concrete sleeper casting mold according to claim 1, characterized in that: Both ends of the first mold body and the second mold body are provided with connecting plates for detachably connecting the mold end plates.

5. A concrete sleeper casting mold according to claim 4, characterized in that: The connecting plate and the mold end plate are connected by bolts.

6. A concrete sleeper casting mold according to claim 1, characterized in that: The upper ends of the first mold body and the second mold body are provided with outwardly protruding horizontal plates along the length direction, and the top surface of the horizontal plates is set above the opening of the sleeper casting cavity.

7. A concrete sleeper casting mold according to claim 6, characterized in that: The inner bottom edges of the two horizontal plates are welded and fixed to the outer top edges of the first mold body and the second mold body, respectively.

8. A concrete sleeper casting mold according to claim 7, characterized in that: The inner edges of the two horizontal plates are inclined outwards and form an angle with the upper surfaces of the first mold body and the second mold body.

9. A concrete sleeper casting mold according to claim 1, characterized in that: The bottom of the sleeper casting cavity has two strip-shaped pre-embedded holes.