A kind of steel pipe double-block type sleeper production template

Abstract

The utility model provides a kind of steel pipe double-block type sleeper production template, including two symmetrical setting mould, the top of mould is equipped with multiple closed mechanisms to avoid slurry leakage;The mould is fixedly connected by connecting plate, and the inside of connecting plate is equipped with extrusion mechanism;The extrusion mechanism is communicated with adjusting mechanism, and the adjusting mechanism includes cylinder, and the bottom of mould, connecting plate is equipped with multiple cylinder, and the inside of cylinder is slidably connected with second piston and support rod, and the surface of second piston is fixedly connected with support rod;The top of multiple support rod is fixedly connected with supporting plate or support plate, and the supporting plate with side wall is "U" shape and is in contact with steel pipe;Sealing ring is installed at the connecting place of support plate and mould, and the support plate is slidably connected with mould.The steel pipe double-block type sleeper production template provided by the utility model has the advantage of facilitating the rapid removal of double-block type sleeper.

Description

Technical Field

[0001] This utility model relates to the field of double-block railway sleeper technology, and in particular to a template for producing steel pipe double-block railway sleepers. Background Technology

[0002] Twin-block ballastless track is suitable for use in high-speed railway ballastless track. It consists of two precast concrete blocks connected by a steel pipe. In high-speed railway construction, the application of twin-block ballastless track on high-speed passenger lines is becoming increasingly widespread, especially on lines with complex terrain, where this structure is almost universally adopted. Twin-block ballastless track offers advantages such as good track smoothness, durable and reliable stability, and high transport efficiency.

[0003] The double-block sleeper consists of concrete blocks at both ends and a steel pipe in the middle. During demolding, the concrete is usually removed from the mold by pulling the steel pipe. However, since the concrete blocks are more than 20 centimeters high, and the ends of the double-block sleeper are embedded in the mold, the resistance to removing the concrete blocks from the mold is high. In addition, the double-block sleeper is thicker at both ends and thinner in the middle, resulting in a small contact area between the steel pipe and the concrete. During the pulling process, the connection between the steel pipe and the concrete is prone to loosening and damage, which reduces the quality of the double-block sleeper.

[0004] Therefore, it is necessary to provide a new template for the production of double-block steel pipe sleepers to solve the above problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a template for producing steel pipe double-block sleepers that facilitates the removal of double-block sleepers.

[0006] To solve the above-mentioned technical problems, the template for producing double-block steel pipe sleepers provided by this utility model includes: two symmetrically arranged molds, with multiple sealing mechanisms installed at the top of the molds to prevent grout leakage; the molds are fixedly connected by a connecting plate, and an extrusion mechanism is installed inside the connecting plate; the extrusion mechanism is connected to an adjustment mechanism, the adjustment mechanism includes a cylinder, multiple cylinders are installed at the bottom of the molds and the connecting plate, a second piston and a support rod are slidably connected inside the cylinder, and the support rod is fixedly connected to the surface of the second piston; the tops of the multiple support rods are fixedly connected to a support plate or a pallet, and the support plate with a "U"-shaped sidewall abuts against the steel pipe; a sealing ring is installed at the connection between the support plate and the mold, and the support plate is slidably connected to the mold.

[0007] Preferably, the sidewall of the mold is provided with multiple grooves, and the steel pipe is placed inside the grooves; a precast sleeper is cast inside the mold, and a reinforcing cage is set inside the precast sleeper, and the steel pipe is fixedly connected to the reinforcing cage.

[0008] Preferably, the closing mechanism includes a clamping plate, multiple clamping plates are fixed to the side wall of the mold, a fixed plate is slidably connected inside the clamping plate, and two fixed plates are slidably connected to a connecting rod; a rubber pad is installed on the side wall of the fixed plate, and the rubber pad abuts against one side of the groove; an air bladder with an arc-shaped side wall is installed on the side wall of the rubber pad, the air bladder wraps around the steel pipe, and an air pipe is installed on the side wall of the air bladder.

[0009] Preferably, the sidewall cross-section of the card plate has an "L" shape, and the thickness of the sidewall of the card plate gradually decreases from top to bottom.

[0010] Preferably, the extrusion mechanism includes a clamping plate, the clamping plate is mounted on the surface of the connecting plate, and a lever is rotatably connected inside the clamping plate; the side wall of the lever is provided with a slot, and an extrusion rod is slidably connected inside the slot; an oil tank is mounted on the bottom surface of the connecting plate, a storage cylinder is fixedly connected inside the oil tank, the extrusion rod and a first piston are slidably connected inside the storage cylinder, the top of the first piston is fixedly connected to the extrusion rod, and the area of ​​the bottom surface of the first piston is much smaller than the area of ​​the bottom surface of the second piston.

[0011] Preferably, an oil suction pipe and an oil inlet pipe are installed at the bottom of the storage cylinder. The oil suction pipe is connected to the bottom of the oil tank, the oil inlet pipe is connected to the bottom of the cylinder, and the two ends of the return pipe are connected to the oil inlet pipe and the oil tank, respectively.

[0012] Preferably, the installation direction of the one-way valve inside the oil suction pipe is opposite to that of the one-way valve inside the oil inlet pipe. The one-way valve includes a locking block. The locking block and the limiting rod are installed inside both the oil suction pipe and the oil inlet pipe. The locking block, which is funnel-shaped inside, engages with a closed ball, and the closed ball abuts against the side wall of the limiting rod.

[0013] Compared with related technologies, the steel pipe double-block sleeper production template provided by this utility model has the following beneficial effects: This utility model provides a template for producing a double-block steel pipe railway sleeper. When casting the precast sleeper, the reinforcing cage is first placed inside the mold, and the steel pipe enters the groove. The extrusion mechanism is then activated, supplying hydraulic oil into the cylinder directly below the connecting plate. This pushes the second piston and the support rod inside the cylinder upwards. The support rod pushes the pallet upwards, and the pallet upwards extrudes the steel pipe and reinforcing cage, lifting the reinforcing cage from inside the mold. This allows the reinforcing cage to be suspended inside the mold before concrete is poured, preventing exposed reinforcement. When demolding is required, the extrusion mechanism is opened, allowing hydraulic oil to enter the interior of the cylinder. This pushes the support rod, the pallet, and the support plate upwards. The multiple pallets move upwards to extrude the steel pipe, and the support plate moves upwards to extrude the precast sleeper inside the mold. Both the precast sleeper and the support rod are subjected to upward thrust, ensuring uniform force on their surfaces. This prevents excessive extrusion pressure at the connection between the precast sleeper and the support rod, which could damage the concrete. Furthermore, the precast sleeper is subjected to upward thrust from different angles, facilitating its upward sliding within the mold and enabling rapid demolding. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the template for producing double-block steel pipe railway sleepers provided by this utility model; Figure 2 for Figure 1 The diagram shows the internal structure of the mold. Figure 3 for Figure 1 The diagram shows an enlarged view of the structure at point A. Figure 4 for Figure 2 The diagram shows an enlarged view of the structure at point B. Figure 5 for Figure 2 The diagram shows an enlarged view of the structure at point C.

[0015] The diagram is labeled as follows: 1. Mold, 11. Connecting plate, 12. Groove, 2. Extrusion mechanism, 21. Oil tank, 22. Extrusion rod, 23. Lever, 24. Clamping plate, 25. Slot, 26. Storage cylinder, 27. First piston, 28. Oil suction pipe, 3. Adjustment mechanism, 31. Cylinder, 32. Support rod, 33. Oil inlet pipe, 34. Oil return pipe, 35. Support plate, 36. Spring, 37. Second piston, 38. Support plate, 39. Sealing ring, 4. Sealing mechanism, 41. Clamping plate, 42. Fixing plate, 43. Connecting rod, 44. Rubber pad, 45. Airbag, 46. Air pipe, 5. One-way valve, 51. Limiting rod, 52. Sealing ball, 53. Clamping block, 6. Precast sleeper, 61. Reinforcing cage, 62. Steel pipe. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please see Figures 1 to 5 , Figure 1 A schematic diagram of a preferred embodiment of the template for producing double-block steel pipe railway sleepers provided by this utility model; Figure 2 for Figure 1 The diagram shows the internal structure of the mold. Figure 3 for Figure 1 The diagram shows an enlarged view of the structure at point A. Figure 4 for Figure 2 The diagram shows an enlarged view of the structure at point B. Figure 5 for Figure 2 The diagram shows an enlarged view of the structure at point C. A template for producing a double-block steel pipe sleeper includes two symmetrically arranged molds 1. The side walls of each mold 1 have multiple grooves 12, and the steel pipe 62 is placed inside the grooves 12. A precast sleeper 6 is cast inside the mold 1, and a reinforcing cage 61 is installed inside the precast sleeper 6. The steel pipe 62 is fixedly connected to the reinforcing cage 61.

[0018] Multiple sealing mechanisms 4 are installed at the top of the mold 1 to prevent slurry leakage. Each sealing mechanism 4 includes a clamping plate 41, with multiple clamping plates 41 fixed to the side wall of the mold 1. A fixing plate 42 is slidably connected inside each clamping plate 41. Two fixing plates 42 are slidably connected to a connecting rod 43, and the connecting plate 43 secures two fixing plates 42 together to prevent them from detaching. A rubber pad 44 is installed on the side wall of the fixing plate 42, and the rubber pad 44 abuts against one side of the groove 12. An airbag 45 with an arc-shaped side wall is installed on the side wall of the rubber pad 44, and the airbag 45 encloses the steel pipe 62. An air pipe 46 is installed on the side wall of the airbag 45. When the steel pipe 62 is placed inside the groove 12, the fixing plate 42 is inserted into the clamping plate 41. Inside plate 41, the sidewall of the clamping plate 41 has an "L" shaped cross-section, facilitating the installation of two fixing plates 42. The fixing plates 42 gradually enter the interior of the clamping plate 41. As the thickness of the sidewall of the clamping plate 41 gradually decreases from top to bottom, the two fixing plates 42 approach each other, and the compressive force between the two fixing plates 42 and the mold 1 gradually increases, causing the rubber pads 44 to press against each other and adhere to the mold 1, sealing the groove 12. The steel pipe 62 enters the interior of the two airbags 45, opens the valve on the sidewall of the air pipe 46, and injects gas into the airbags 45 through the air pipe 46, causing the airbags 45 to inflate. The airbags 45 are tightly attached to the sidewall of the steel pipe 62, sealing the space between the steel pipe 62 and the groove 12 to prevent slurry leakage.

[0019] The molds 1 are fixedly connected by a connecting plate 11, and an extrusion mechanism 2 is installed inside the connecting plate 11. The extrusion mechanism 2 includes a clamping plate 24, which is installed on the surface of the connecting plate 11. A lever 23 is rotatably connected inside the clamping plate 24. A slot 25 is provided on the side wall of the lever 23, and an extrusion rod 22 is slidably connected inside the slot 25. An oil tank 21 is installed on the bottom surface of the connecting plate 11, and a storage cylinder 26 is fixedly connected inside the oil tank 21. The extrusion rod 22 and a first piston 27 are slidably connected inside the storage cylinder 26. The top of the first piston 27 is fixedly connected to the extrusion rod 22. When the lever 23 is rotated, the lever 23 rotates inside the clamping plate 24. The lever 23 drives the slot 25 to rotate, and the slot 25 drives the extrusion rod 22 to move up and down, so that the extrusion rod 22 drives the first piston 27 to move up and down continuously inside the storage cylinder 26.

[0020] The bottom end of the storage cylinder 26 is equipped with an oil suction pipe 28 and an oil inlet pipe 33. The oil suction pipe 28 is connected to the bottom end of the oil tank 21, and the oil inlet pipe 33 is connected to the bottom end of the cylinder 31. The two ends of the return pipe 34 are connected to the oil inlet pipe 33 and the oil tank 21, respectively. The installation direction of the one-way valve 5 inside the oil suction pipe 28 is opposite to that inside the oil inlet pipe 33. The one-way valve 5 includes a locking block 53. The locking block 53 and the limiting rod 51 are installed inside both the oil suction pipe 28 and the oil inlet pipe 33. The internal funnel-shaped locking block 53 engages with a closing ball 52, and the closing ball 52 abuts against the side wall of the limiting rod 51. When the first piston 27 moves upward inside the storage cylinder 26... During movement, a suction force is generated inside the storage cylinder 26, the sealing ball 52 inside the oil suction pipe 28 abuts against the limiting rod 51, and the sealing ball 52 inside the oil inlet pipe 33 engages with the locking block 53, opening the oil suction pipe 28 and closing the oil inlet pipe 33, allowing the hydraulic oil inside the oil tank 21 to enter the storage cylinder 26; when the first piston 27 moves downward inside the storage cylinder 26, the sealing ball 52 inside the oil inlet pipe 33 abuts against the limiting rod 51, the sealing ball 52 inside the oil suction pipe 28 engages with the locking block 53, closing the oil suction pipe 28 and opening the oil inlet pipe 33, allowing the hydraulic oil inside the storage cylinder 26 to be discharged through the oil inlet pipe 33.

[0021] The extrusion mechanism 2 is connected to the adjustment mechanism 3. The adjustment mechanism 3 includes a cylinder 31. Multiple cylinders 31 are installed at the bottom of the mold 1 and the connecting plate 11. Springs 36 are installed inside the cylinders 31, and the top of the springs 36 is fixedly connected to a second piston 37. The second piston 37 and a support rod 32 are slidably connected inside the cylinders 31, and the support rod 32 is fixedly connected to the surface of the second piston 37. The tops of the multiple support rods 32 are fixedly connected to a support plate 35 or a support plate 38. The support plate 35, with its U-shaped sidewall, abuts against the steel pipe 62. A sealing ring 39 is installed at the connection between the support plate 38 and the mold 1. The support plate 38 is slidably connected to the mold 1. When pouring concrete, the sealing ring 39 prevents concrete from entering the connection between the support plate 38 and the mold 1. When hydraulic oil is delivered into the interior of the cylinder 31 through the oil inlet pipe 33, it pushes the second piston 37 and the support rod 32 to move upward, and the upward movement of the second piston 37 stretches the spring 36. When the support rod 32 needs to move downward, the return pipe 34 is opened, the spring 36 contracts and drives the second piston 37 to move upward, so that the second piston 37 inputs the hydraulic oil inside the cylinder 31 into the interior of the oil tank 21 through the return pipe 34.

[0022] The area of ​​the bottom surface of the first piston 27 is much smaller than that of the bottom surface of the second piston 37. When the first piston 27 squeezes the hydraulic oil to push the second piston 37 upward, according to Pascal's law, the pressure of a liquid is the same everywhere in a closed container. When the pressure is transmitted from the small piston to the large piston, the pressure will be amplified multiple times according to the area ratio. Therefore, it is easier for the first piston 27 to push the second piston 37 to move. Moreover, it is easier to move the first piston 27 through the lever 32, thus reducing the workload of the workers.

[0023] The working principle of the steel pipe double-block sleeper production template provided by this utility model is as follows: When casting the precast sleeper 6, the reinforcing cage 61 is first placed inside the mold 1, and the steel pipe 62 enters the groove; the valve inside the oil inlet pipe 33 corresponding to the support plate 35 is opened, and the lever 23 is continuously squeezed, so that the first piston 27 moves continuously to squeeze the hydraulic oil into the cylinder 31, pushing the second piston 37 directly below the connecting plate 11 to move upward. The second piston 37 pushes the support rod 32 to move upward, and the support rod 32 pushes the support plate 35 to move upward. The support plate 35 squeezes the steel pipe 62 and the reinforcing cage 61 upward, providing upward support force to the reinforcing cage 61, so that the reinforcing cage 61 is suspended inside the mold before concrete is poured, avoiding exposed reinforcing bars. After the steel pipe 62 is fixed in position, the fixing plate 42 is placed inside the clamping plate 41. The side wall of the clamping plate 41 has an "L" shaped cross-section, which facilitates the two fixing plates 42. The fixing plate 42 gradually enters the interior of the clamping plate 41. As the thickness of the side wall of the clamping plate 41 gradually decreases from top to bottom, the two fixing plates 42 move closer to each other, and the squeezing force between the two fixing plates 42 and the mold 1 gradually increases, causing the rubber pads 44 to squeeze against each other and adhere to the mold 1, sealing the groove 12. The steel pipe 62 enters the interior of the two airbags 45. The valve on the side wall of the air pipe 46 is opened, and gas is injected into the airbag 45 through the air pipe 46 to inflate the airbag 45. The airbag 45 adheres tightly to the side wall of the steel pipe 62, sealing the steel pipe 62 and the groove 12. Concrete can then be poured into the mold 1. When demolding is required, open the valves on the side walls of all the oil inlet pipes 33, press the lever 23, and push the support rod 32, the pallet 35, and the support plate 38 upward. The multiple pallets 35 move upward to squeeze the steel pipe 62, and the support plate 38 moves upward to squeeze the precast sleeper 6 inside the mold 1. The precast sleeper 6 and the support rod 38 are both subjected to upward thrust, so that the surface of the precast sleeper 6 and the support rod 38 is evenly stressed, preventing excessive extrusion pressure at the connection between the precast sleeper 6 and the support rod 62 from damaging the concrete. Furthermore, the precast sleeper 6 is subjected to upward thrust from different angles, which facilitates the precast sleeper 6 to slide upward inside the mold 1, allowing the precast sleeper 6 to separate from the mold 1.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A template for producing double-block steel pipe railway sleepers, characterized in that, include: Two symmetrically arranged molds (1) are provided, and multiple sealing mechanisms (4) to prevent slurry leakage are installed on the top of the molds (1); the molds (1) are fixedly connected by a connecting plate (11), and an extrusion mechanism (2) is installed inside the connecting plate (11). The extrusion mechanism (2) is connected to the adjustment mechanism (3). The adjustment mechanism (3) includes a cylinder (31). Multiple cylinders (31) are installed at the bottom of the mold (1) and the connecting plate (11). The second piston (37) and the support rod (32) are slidably connected inside the cylinder (31). The support rod (32) is fixedly connected to the surface of the second piston (37). The top of the multiple support rods (32) is fixedly connected to a support plate (35) or a support plate (38). The support plate (35) with a "U" shaped sidewall abuts against the steel pipe (62). A sealing ring (39) is installed at the connection between the support plate (38) and the mold (1). The support plate (38) is slidably connected to the mold (1).

2. The template for producing double-block steel pipe sleepers according to claim 1, characterized in that, The mold (1) has multiple grooves (12) on its side wall, and the steel pipe (62) is placed inside the grooves (12); a precast sleeper (6) is cast inside the mold (1), and a steel cage (61) is set inside the precast sleeper (6), and the steel pipe (62) is fixedly connected to the steel cage (61).

3. The template for producing double-block steel pipe sleepers according to claim 2, characterized in that, The closing mechanism (4) includes a clamping plate (41), multiple clamping plates (41) are fixed to the side wall of the mold (1), and a fixed plate (42) is slidably connected inside the clamping plate (41). Two fixed plates (42) are slidably connected to the connecting rod (43). A rubber pad (44) is installed on the side wall of the fixed plate (42), and the rubber pad (44) abuts against one side of the groove (12). An airbag (45) with an arc-shaped side wall is installed on the side wall of the rubber pad (44), the airbag (45) wraps the steel pipe (62), and an air tube (46) is installed on the side wall of the airbag (45).

4. The template for producing double-block steel pipe sleepers according to claim 3, characterized in that, The side wall cross-section of the card plate (41) is "L" shaped, and the thickness of the side wall of the card plate (41) gradually decreases from top to bottom.

5. The template for producing double-block steel pipe sleepers according to claim 1, characterized in that, The extrusion mechanism (2) includes a clamping plate (24), which is mounted on the surface of the connecting plate (11). The clamping plate (24) is rotatably connected to a lever (23). The side wall of the lever (23) is provided with a slot (25), and the extrusion rod (22) is slidably connected inside the slot (25). An oil tank (21) is mounted on the bottom surface of the connecting plate (11), and a storage cylinder (26) is fixedly connected inside the oil tank (21). The extrusion rod (22) and a first piston (27) are slidably connected inside the storage cylinder (26). The top of the first piston (27) is fixedly connected to the extrusion rod (22), and the area of ​​the bottom surface of the first piston (27) is much smaller than the area of ​​the bottom surface of the second piston (37).

6. The template for producing double-block steel pipe sleepers according to claim 5, characterized in that, The bottom end of the storage cylinder (26) is equipped with an oil suction pipe (28) and an oil inlet pipe (33). The oil suction pipe (28) is connected to the bottom end of the oil tank (21), and the oil inlet pipe (33) is connected to the bottom end of the cylinder (31). The two ends of the return pipe (34) are connected to the oil inlet pipe (33) and the oil tank (21) respectively.

7. The template for producing double-block steel pipe sleepers according to claim 6, characterized in that, The installation direction of the one-way valve (5) inside the oil suction pipe (28) is opposite to that of the one-way valve (5) inside the oil inlet pipe (33). The one-way valve (5) includes a locking block (53). The locking block (53) and the limiting rod (51) are installed inside both the oil suction pipe (28) and the oil inlet pipe (33). The locking block (53), which is funnel-shaped inside, engages with the closing ball (52), and the closing ball (52) abuts against the side wall of the limiting rod (51).

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