Internal mold structure of bridge fabrication machine

Abstract

The invention discloses an internal mold structure of a bridge fabrication machine, and aims to overcome the defects that an existing bridge fabrication machine can only adapt to the size change of a box girder by replacing an internal mold, the working efficiency is low, and the cost is high. The device comprises an inner formwork and two opposite top plates, the top plates are slidably mounted on the inner formwork, and a telescopic mechanism is mounted on the inner formwork and connected with the top plates so as to push the top plates to move. According to the internal mold structure of the bridge fabrication machine, the width of the internal mold can be adjusted to adapt to the thickness change of a beam web, the working efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge-building machines, and more particularly to an inner mold structure of a bridge-building machine. Background Art

[0002] During the bridge construction process, an inner mold is set at the box beam, and an outer mold is set outside the inner mold. The box beam is formed by filling slurry between the inner mold and the outer mold. Since the web thickness of some beams varies at different longitudinal positions, the size of the inner mold also needs to be adjusted when the bridge is constructed in sections. The existing bridge-building machine can only adapt to the size changes of the box beam by replacing the inner mold. This bridge-building method requires more construction personnel, has low work efficiency, and is costly. For example, Chinese patent application No. 2025103438529 discloses a lightweight bridge-building machine. When the web thickness of the beam changes, the inner mold needs to be replaced to adapt to the size changes of the box beam, resulting in low work efficiency and high cost. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings, the present invention provides an inner mold structure of a bridge-building machine, the width of which can be adjusted to adapt to changes in the thickness of the web of the beam body, which is conducive to improving work efficiency and reducing costs.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: an inner mold structure of a bridge-building machine, comprising an inner mold frame and two oppositely arranged top plates, the top plates being slidably installed on the inner mold frame, a telescopic mechanism being installed on the inner mold frame, the telescopic mechanism being connected to the top plates to push the top plates to move.

[0005] The two top plates of the bridge-building machine's inner formwork are designed to move. When the thickness of the beam web changes, the top plates are moved to adjust the overall width. The edges of the two top plates are partially stacked to ensure the integrity of the top plates after sliding, facilitating subsequent beam pouring. The top plates are driven by the telescopic movement of the telescopic mechanism, ensuring smooth and reliable movement. This mechanism pushes the top plates to slide, ensuring that the two top plates of the inner formwork structure always match the required width, significantly improving the efficiency of the entire bridge-building machine and reducing the cost of the entire bridge-building operation.

[0006] The width of the inner mold structure of the bridge-building machine of this patent can be adjusted to adapt to the change in the thickness of the web of the beam body, which is beneficial to improving work efficiency and reducing costs.

[0007] Preferably, an intermediate beam is slidably connected between the two top plates, and after the top plates slide into place, the intermediate beam and the top plates are locked and positioned.

[0008] The middle beam secures the two top plates together, ensuring the stability of the entire top plate. The middle beam creates a connection between the two top plates, forming a flexible, integrated structure that ensures the integrity and stability of the inner mold structure. It also allows the telescopic mechanism to more accurately adjust the distance between the two top plates.

[0009] Preferably, a reinforcing beam is installed on the top plate, a long sliding hole is provided on the reinforcing beam, a locking column is connected to the middle beam, and the locking column is connected to the sliding hole by insertion.

[0010] The reinforcement beam improves the structural strength of the roof and facilitates the connection between the roof and the middle beam. The locking post is inserted into the sliding hole. As the roof slides, the locking post slides along the sliding hole to ensure smooth sliding of the roof. Once the roof slides into place, the locking post is tightened to secure the reinforcement beam and the middle beam, making the connection convenient and reliable.

[0011] Preferably, the telescopic mechanism is one of an electric cylinder, a pneumatic cylinder and an oil cylinder.

[0012] The electric cylinder, air cylinder and oil cylinder are used as the telescopic mechanism, which has a simple structure and stable and reliable operation.

[0013] Preferably, the edge of the top plate is rotatably connected to the side plates, and the two top plates and the two side plates together form an inverted U-shaped inner mold frame.

[0014] Through the articulated cooperation between the side panels and the top panel, the side panels can be rotated inwards during demoulding to achieve rapid demoulding, and the inner mold structure can also avoid other structures when moving.

[0015] Preferably, an inclined upper connecting part is provided on the edge of the top plate, an inclined lower connecting part is provided on the upper part of the side plate, the upper connecting part and the lower connecting part are connected correspondingly, a fixed plate is provided on the lower side of the upper connecting part, and a rotating plate is provided on the lower side of the lower connecting part, and the rotating plate is rotatably connected to the fixed plate through a hinge shaft.

[0016] The rotating plate and the fixed plate are rotatably connected via a hinge shaft, and the connection is convenient and reliable.

[0017] Preferably, a telescopic rod is provided on the telescopic mechanism, a mounting seat is provided on the top plate, and the end of the telescopic rod is rotatably connected to the mounting seat.

[0018] The end of the telescopic rod is rotatably connected to the mounting base to prevent jamming during the operation of the telescopic mechanism.

[0019] Preferably, two upper and lower clamping plates are installed on the inner mold frame, and long strip slots are provided on the clamping plates. Inserting posts are provided on the telescopic mechanism, and the telescopic mechanism is clamped between the two clamping plates. The inserting posts are movably connected to the slots.

[0020] The pins and slots are movably plug-in connected to achieve sliding cooperation between the telescopic mechanism and the inner mold bracket, avoiding dead points, thereby preventing excessive local stress in the inner mold structure during operation and improving the service life of the entire inner mold structure.

[0021] Preferably, sliding beams are provided on both sides of the inner mold frame, and supporting beams are provided below the sliding beams. A plurality of rolling rollers are installed on the sliding beams at intervals, and the rolling rollers are supported on the supporting beams.

[0022] The roller on the sliding beam is supported on the supporting beam, thereby supporting the entire inner mold frame. When moving, the rolling roller rolls along the supporting beam, which is stable and reliable.

[0023] Preferably, a plurality of reinforcing beams are arranged at intervals in front and back on the lower surface of the top, and a supporting beam is arranged below the reinforcing beam. The supporting beam and the reinforcing beam are fastened together, and the supporting beam is supported on the sliding beam.

[0024] The provision of multiple reinforcing beams and supporting beams is beneficial to improving the structural strength of the top plate and ensuring the stability of the top plate support.

[0025] Compared with the prior art, the beneficial effects of the present invention are: (1) the width of the inner mold of the inner mold structure of the bridge-building machine of this patent can be adjusted to adapt to the change in the thickness of the web of the beam body, which is conducive to improving work efficiency and reducing costs; (2) the top plate structure has good strength and is easy to demould. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0028] Figure 3 It is a position structure diagram of the telescopic mechanism of the present invention.

[0029] Figure 4 It is a side view of embodiment 1 of the present invention.

[0030] Figure 5 It is a side view of embodiment 2 of the present invention.

[0031] Figure 6 It is a side view of embodiment 3 of the present invention.

[0032] , 32. Anti-slip plate, 33. Side plate, 34. Upper connecting part, 35. Lower connecting part, 36. Fixed plate, 37. Rotating plate, 38. Articulated shaft, 39. Rear plate, 40. Rear plate, 41. Rear plate, 42. Rear plate, 43. Rear plate, 44. Rear plate, 45. Rear plate, 46. Rear plate, 47. Rear plate, 48. Rear plate, 49. Rear plate, 50. Rear plate, 51. Rear plate, 52. Rear plate, 53. Rear plate, 54. Rear plate, 55. Rear plate, 56. Rear plate, 57. Rear plate, 58. Rear plate, 59. Rear plate, 60. Rear plate, 61. Rear plate, 62. Rear plate, 63. Rear plate, 64. Rear plate, 65. Rear plate, 66. Rear plate, 67. Rear plate, 68. Rear plate, 69. Rear plate, 70. Rear plate, 71. Rear plate, 72. Rear plate, 73. Rear plate, 74. Rear plate, 75. Rear plate, 76. Rear plate, 77. Rear plate, 78. Rear plate, 79. Rear plate, DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: A bridge-building machine inner mold structure (see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The structure comprises an inner formwork frame 1 and two opposing top plates 2, each slidably mounted on the inner formwork frame 1. The two top plates 2 are positioned opposite each other and can be moved left and right. A telescopic mechanism 3 is mounted on the inner formwork frame 1, connecting the top plates 2 and thereby driving their movement. The edges of the two top plates 2, which are positioned adjacent to each other, are partially stacked to ensure that the entire top plate 2 remains intact after sliding, facilitating subsequent pouring of the beam.

[0034] The telescopic mechanism 3 is one of an electric cylinder, a pneumatic cylinder, and an oil cylinder. In this embodiment, the telescopic mechanism 3 is an oil cylinder. Each top plate 2 is connected to at least two telescopic mechanisms 3. In this embodiment, two pairs of telescopic mechanisms 3 are provided. The same pair of telescopic mechanisms 3 are connected to form a whole and share a cylinder body. A telescopic rod 8 is provided on the telescopic mechanism 3, and a mounting seat 9 is provided on the top plate 2. The end of the telescopic rod 8 is rotatably connected to the mounting seat 9. The end of the telescopic rod 8 is rotatably connected to the mounting seat 9 to prevent jamming during the operation of the telescopic mechanism 3. Two upper and lower splints 19 are installed on the inner mold frame 1. A long strip of slots 20 is provided on the splint 19. The length direction of the slots 20 is arranged front to back. A column 21 is provided on the telescopic mechanism 3. The column 21 is provided on the outer wall of the oil cylinder. The column 21 is vertically arranged. The telescopic mechanism 3 is clamped between the two splints 19. The column 21 is movably plug-in connected to the slot 20. The pin 21 is movably connected to the slot 20 to achieve sliding cooperation between the telescopic mechanism 3 and the inner mold bracket, avoiding dead points, thereby avoiding excessive local stress in the inner mold structure during operation and improving the service life of the entire inner mold structure.

[0035] The middle beam 22 is slidably connected between the two top plates 2. After the top plates 2 slide into place, the middle beam 22 and the top plates 2 are locked and positioned. The middle beam 22 realizes the connection and fastening of the two top plates 2, ensuring the stability of the entire top plate 2. Through the provision of the middle beam 22, a connection relationship can be established between the two top plates 2, so that the three are connected into a movable integral structure, ensuring the integrity and stability of the inner mold structure, and also making the telescopic mechanism 3 more accurate when adjusting the distance between the two top plates 2. A reinforcing beam 23 is installed on the top plate 2, and a long strip of sliding holes 24 is provided on the reinforcing beam 23. Several sliding holes 24 are provided at intervals on the left and right. A locking column is connected to the middle beam 22, and the locking column is plug-connected to the sliding hole 24. The reinforcing beam 23 is conducive to improving the structural strength of the top plate 2 and facilitates the connection between the top plate 2 and the middle beam 22. The locking column is inserted into the sliding hole 24. During the sliding process of the top plate 2, the locking column slides along the sliding hole 24 to ensure the smooth sliding of the top plate 2. After the top plate 2 slides into place, the nut is connected to the locking column and the locking column is tightened, thereby achieving the fastening of the reinforcing beam 23 and the middle beam 22. The connection is convenient and reliable.

[0036] Sliding beams 25 are installed on both sides of the inner formwork frame 1. Support beams 26 are installed below the sliding beams 25. The support beams 26 are hoisted and installed via a suspender rod and arranged in a longitudinal direction. A number of rolling rollers 27 are installed on the sliding beams 25. The rolling rollers 27 are spaced apart in a longitudinal direction and arranged in a longitudinal direction. The rolling rollers 27 are supported by the support beams 26. Several reinforcement beams 23 are installed in a longitudinal direction on the top lower surface. Support beams 28 are installed below the reinforcement beams 23. The support beams 28 and reinforcement beams 23 are tightly connected and supported by the sliding beams 25. Both the support beams 28 and reinforcement beams 23 are U-shaped channel steel structures. The rollers on the sliding beams 25 are supported by the support beams 26, thereby supporting the entire inner formwork frame 1. During movement, the rolling rollers 27 roll along the support beams 26, providing stability and reliability.

[0037] The sliding beam 25 is equipped with an anti-slip mechanism, which includes a primary anti-slip frame 29 and a secondary anti-slip frame 30. Both the primary anti-slip frame 29 and the secondary anti-slip frame 30 are U-shaped structures. The primary anti-slip frame 29 is rotatably connected to an anti-slip roller 31, and the secondary anti-slip frame 30 is equipped with an anti-slip plate 32. The anti-slip roller 31 is arranged higher than the anti-slip plate 32. Both the anti-slip roller 31 and the anti-slip plate 32 are positioned below the support beam 26 and close to the lower surface of the support beam 26. The anti-slip mechanism ensures the vertical positioning of the inner formwork frame 1, preventing the inner formwork frame 1 from separating from the support beam 26.

[0038] The edge of the top plate 2 is rotatably connected to the side plates 33, and the two top plates 2 and the two side plates 33 together form an inverted U-shaped inner mold frame. Through the hinged connection between the side plates 33 and the top plate 2, the side plates 33 can be rotated inward during demoulding to achieve rapid demoulding, and at the same time, it can also avoid other structures when the inner mold structure is moving. An inclined upper connecting portion 34 is provided at the edge of the top plate 2, and an inclined lower connecting portion 35 is provided on the upper part of the side plate 33. The upper connecting portion 34 and the lower connecting portion 35 are correspondingly connected. A fixed plate 36 is provided on the lower side of the upper connecting portion 34, and a rotating plate 37 is provided on the lower side of the lower connecting portion 35. The rotating plate 37 is rotatably connected to the fixed plate 36 via a hinge shaft 38. The upper connecting portion 34 and the lower connecting portion 35 are both tilted to facilitate demoulding. The rotating plate 37 and the fixed plate 36 are rotatably connected via a hinge shaft 38, and the connection is convenient and reliable.

[0039] The two top plates 2 of the bridge machine's inner mold are movable. When the thickness of the beam web changes, the overall width is adjusted by moving the top plates 2. The edges of the two top plates 2, which are close to each other, are partially stacked to ensure that the top plates 2 remain intact after sliding, facilitating the subsequent pouring of the beam. The telescopic movement of the top plates 2 is driven by the telescopic mechanism 3, which moves the top plates 2 smoothly and reliably. This mechanism pushes the top plates 2 to slide, ensuring that the two top plates 2 of the inner mold structure always match the required inner mold width, significantly improving the efficiency of the entire bridge machine and reducing the cost of the entire bridge construction process.

[0040] Example 2: A bridge-building machine inner mold structure (see Figure 5 ), including an inner mold frame 1 and two oppositely arranged top plates 2, the top plates 2 are slidably installed on the inner mold frame 1, the two top plates 2 are arranged opposite to each other left and right, the top plates 2 are installed on the inner mold frame 1 and can move left and right, and a telescopic mechanism 3 is installed on the inner mold frame 1, the telescopic mechanism 3 is connected to the top plates 2 to push the top plates 2 to move.

[0041] A jacking mechanism 4 is mounted on the inner formwork frame 1. A gap-filling formwork 5 is detachably connected to the jacking mechanism 4. After the top plate 2 moves, a gap appears between the two top plates 2. The jacking mechanism 4 fills the gap-filling formwork 5 between the two top plates 2, ensuring that the entire top plate 2 remains intact after sliding, facilitating subsequent pouring of the beam body. At least two jacking mechanisms 4 are provided. Each jacking mechanism 4 is a hydraulic cylinder. A lifting rod 6 is provided on the jacking mechanism 4. The lifting rod 6 is connected to the hydraulic cylinder. The upper end of the lifting rod 6 is connected to a support base plate 7. The gap-filling formwork 5 is detachably connected to the support base plate 7.

[0042] The telescopic mechanism 3 is one of an electric cylinder, a pneumatic cylinder, and an oil cylinder. In this embodiment, the telescopic mechanism 3 is an oil cylinder. Each top plate 2 is connected to at least two telescopic mechanisms 3. In this embodiment, two pairs of telescopic mechanisms 3 are provided. The same pair of telescopic mechanisms 3 are connected to form a whole and share a cylinder body. A telescopic rod 8 is provided on the telescopic mechanism 3, and a mounting seat 9 is provided on the top plate 2. The end of the telescopic rod 8 is rotatably connected to the mounting seat 9. The end of the telescopic rod 8 is rotatably connected to the mounting seat 9 to prevent jamming during the operation of the telescopic mechanism 3. Two upper and lower splints 19 are installed on the inner mold frame 1. A long strip of slots 20 is provided on the splint 19. The length direction of the slots 20 is arranged front to back. A column 21 is provided on the telescopic mechanism 3. The column 21 is provided on the outer wall of the oil cylinder. The column 21 is vertically arranged. The telescopic mechanism 3 is clamped between the two splints 19. The column 21 is movably plug-in connected to the slot 20. The pin 21 is movably connected to the slot 20 to achieve sliding cooperation between the telescopic mechanism 3 and the inner mold bracket, avoiding dead points, thereby avoiding excessive local stress in the inner mold structure during operation and improving the service life of the entire inner mold structure.

[0043] The middle beam 22 is slidably connected between the two top plates 2. After the top plates 2 slide into place, the middle beam 22 and the top plates 2 are locked and positioned. The middle beam 22 realizes the connection and fastening of the two top plates 2, ensuring the stability of the entire top plate 2. Through the provision of the middle beam 22, a connection relationship can be established between the two top plates 2, so that the three are connected into a movable integral structure, ensuring the integrity and stability of the inner mold structure, and also making the telescopic mechanism 3 more accurate when adjusting the distance between the two top plates 2. A reinforcing beam 23 is installed on the top plate 2, and a long strip of sliding holes 24 is provided on the reinforcing beam 23. Several sliding holes 24 are provided at intervals on the left and right. A locking column is connected to the middle beam 22, and the locking column is plug-connected to the sliding hole 24. The reinforcing beam 23 is conducive to improving the structural strength of the top plate 2 and facilitates the connection between the top plate 2 and the middle beam 22. The locking column is inserted into the sliding hole 24. During the sliding process of the top plate 2, the locking column slides along the sliding hole 24 to ensure the smooth sliding of the top plate 2. After the top plate 2 slides into place, the nut is connected to the locking column and the locking column is tightened, thereby achieving the fastening of the reinforcing beam 23 and the middle beam 22. The connection is convenient and reliable.

[0044] Sliding beams 25 are installed on both sides of the inner formwork frame 1. Support beams 26 are installed below the sliding beams 25. The support beams 26 are hoisted and installed via a suspender rod and arranged in a longitudinal direction. A number of rolling rollers 27 are installed on the sliding beams 25. The rolling rollers 27 are spaced apart in a longitudinal direction and arranged in a longitudinal direction. The rolling rollers 27 are supported by the support beams 26. Several reinforcement beams 23 are installed in a longitudinal direction on the top lower surface. Support beams 28 are installed below the reinforcement beams 23. The support beams 28 and reinforcement beams 23 are tightly connected and supported by the sliding beams 25. Both the support beams 28 and reinforcement beams 23 are U-shaped channel steel structures. The rollers on the sliding beams 25 are supported by the support beams 26, thereby supporting the entire inner formwork frame 1. During movement, the rolling rollers 27 roll along the support beams 26, providing stability and reliability.

[0045] The sliding beam 25 is equipped with an anti-slip mechanism, which includes a primary anti-slip frame 29 and a secondary anti-slip frame 30. Both the primary anti-slip frame 29 and the secondary anti-slip frame 30 are U-shaped structures. The primary anti-slip frame 29 is rotatably connected to an anti-slip roller 31, and the secondary anti-slip frame 30 is equipped with an anti-slip plate 32. The anti-slip roller 31 is arranged higher than the anti-slip plate 32. Both the anti-slip roller 31 and the anti-slip plate 32 are positioned below the support beam 26 and close to the lower surface of the support beam 26. The anti-slip mechanism ensures the vertical positioning of the inner formwork frame 1, preventing the inner formwork frame 1 from separating from the support beam 26.

[0046] The edge of the top plate 2 is rotatably connected to the side plates 33, and the two top plates 2 and the two side plates 33 together form an inverted U-shaped inner mold frame. Through the hinged connection between the side plates 33 and the top plate 2, the side plates 33 can be rotated inward during demoulding to achieve rapid demoulding, and at the same time, it can also avoid other structures when the inner mold structure is moving. An inclined upper connecting portion 34 is provided at the edge of the top plate 2, and an inclined lower connecting portion 35 is provided on the upper part of the side plate 33. The upper connecting portion 34 and the lower connecting portion 35 are correspondingly connected. A fixed plate 36 is provided on the lower side of the upper connecting portion 34, and a rotating plate 37 is provided on the lower side of the lower connecting portion 35. The rotating plate 37 is rotatably connected to the fixed plate 36 via a hinge shaft 38. The upper connecting portion 34 and the lower connecting portion 35 are both tilted to facilitate demoulding. The rotating plate 37 and the fixed plate 36 are rotatably connected via a hinge shaft 38, and the connection is convenient and reliable.

[0047] The two top plates 2 of the bridge-building machine's inner mold are movable. When the thickness of the beam web changes, the top plates 2 are moved to adjust the overall width. The lifting mechanism 4 then fills the gap between the two top plates 2 with supplementary formwork 5, ensuring the integrity of the top plates 2 after sliding, allowing for subsequent pouring of the beam. The telescopic mechanism 3 drives the top plates 2 in a smooth and reliable manner. This mechanism pushes the top plates 2 to slide, ensuring that the two top plates 2 of the inner mold structure always match the required inner mold width, significantly improving the efficiency of the entire bridge-building machine and reducing the cost of the entire bridge-building operation.

[0048] Example 3: A bridge-building machine inner mold structure (see Figure 6 ), including an inner mold frame 1 and two oppositely arranged top plates 2, the top plates 2 are slidably installed on the inner mold frame 1, the two top plates 2 are arranged opposite to each other left and right, the top plates 2 are installed on the inner mold frame 1 and can move left and right, and a telescopic mechanism 3 is installed on the inner mold frame 1, the telescopic mechanism 3 is connected to the top plates 2 to push the top plates 2 to move.

[0049] A jacking mechanism 4 is mounted on the inner formwork frame 1. A gap-filling formwork 5 is detachably connected to the jacking mechanism 4. After the top plate 2 moves, a gap appears between the two top plates 2. The jacking mechanism 4 fills the gap-filling formwork 5 between the two top plates 2, ensuring that the entire top plate 2 remains intact after sliding, facilitating subsequent pouring of the beam body. At least two jacking mechanisms 4 are provided. Each jacking mechanism 4 is a hydraulic cylinder. A lifting rod 6 is provided on the jacking mechanism 4. The lifting rod 6 is connected to the hydraulic cylinder. The upper end of the lifting rod 6 is connected to a support base plate 7. The gap-filling formwork 5 is detachably connected to the support base plate 7.

[0050] The telescopic mechanism 3 is an electric cylinder, a pneumatic cylinder, or an oil cylinder. In this embodiment, the telescopic mechanism 3 is an oil cylinder. Each top plate 2 is connected to at least two telescopic mechanisms 3. In this embodiment, two pairs of telescopic mechanisms 3 are provided. Each pair of telescopic mechanisms 3 is connected to form a single unit and share a common cylinder. A telescopic rod 8 is provided on the telescopic mechanism 3, and a mounting base 9 is provided on the top plate 2. The end of the telescopic rod 8 is rotatably connected to the mounting base 9. This rotatable connection between the end of the telescopic rod 8 and the mounting base 9 prevents the telescopic mechanism 3 from becoming stuck during operation.

[0051] The telescopic rod 8 includes a driving section 10 and a connecting section 11, with a buffer spring 12 connected between the driving section 10 and the connecting section 11. The driving section 10 is connected to the telescopic mechanism 3, and the connecting section 11 is connected to the top plate 2. The driving rod is connected to a slide rod 13, which is rotatably connected to a rocker arm 14 on the top plate 2. A force storage spring 15 is installed between the rocker arm 14 and the top plate 2. A striking ball 16 is provided at the end of the rocker arm 14. A toggle plate 17 is connected to the slide rod 13, and the toggle plate 17 rests on the striking ball 16. In the initial stage of demoulding, when the telescopic mechanism 3 drives the two top plates 2 to approach each other, the pulling force of the telescopic rod 8 is not enough to pull the top plates 2 to move. At this time, the driving rod moves, and the buffer spring 12 is stretched. The toggle plate 17 abuts against the impact ball 16 and pushes the rocker arm 14 to swing toward the side of the force storage spring 15. The force storage spring 15 is compressed and stores force. As the driving rod continues to move, the toggle plate 17 breaks away from the impact ball 16. At this time, under the action of the force storage spring 15, the rocker arm 14 swings in the opposite direction and hits the top plate 2, causing the top plate 2 to vibrate for easy demoulding.

[0052] A vertically positioned impact block 18 is provided on the top plate 2, upon which the impact ball 16 can strike. A plurality of rocker arms 14 are connected to the top plate 2 at intervals, and a plurality of toggle plates 17 are provided on the slide bar 13, each corresponding to each rocker arm 14. The connecting section 11 of the telescopic rod 8 is rotatably connected to the mounting base 9.

[0053] Two vertically arranged clamping plates 19 are mounted on the inner mold frame 1. These plates are provided with elongated slots 20, which are arranged in a longitudinal direction. The telescopic mechanism 3 is provided with plug posts 21, which are mounted on the outer wall of the oil cylinder and arranged vertically. The telescopic mechanism 3 is clamped between the two clamping plates 19, and the plug posts 21 are movably connected to the slots 20. This movably connected connection between the plug posts 21 and the slots 20 enables sliding cooperation between the telescopic mechanism 3 and the inner mold frame, avoiding dead spots, thereby preventing localized excessive stress in the inner mold structure during operation and extending the service life of the entire inner mold structure.

[0054] The middle beam 22 is slidably connected between the two top plates 2. After the top plates 2 slide into place, the middle beam 22 and the top plates 2 are locked and positioned. The middle beam 22 realizes the connection and fastening of the two top plates 2, ensuring the stability of the entire top plate 2. Through the provision of the middle beam 22, a connection relationship can be established between the two top plates 2, so that the three are connected into a movable integral structure, ensuring the integrity and stability of the inner mold structure, and also making the telescopic mechanism 3 more accurate when adjusting the distance between the two top plates 2. A reinforcing beam 23 is installed on the top plate 2, and a long strip of sliding holes 24 is provided on the reinforcing beam 23. Several sliding holes 24 are provided at intervals on the left and right. A locking column is connected to the middle beam 22, and the locking column is plug-connected to the sliding hole 24. The reinforcing beam 23 is conducive to improving the structural strength of the top plate 2 and facilitates the connection between the top plate 2 and the middle beam 22. The locking column is inserted into the sliding hole 24. During the sliding process of the top plate 2, the locking column slides along the sliding hole 24 to ensure the smooth sliding of the top plate 2. After the top plate 2 slides into place, the nut is connected to the locking column and the locking column is tightened, thereby achieving the fastening of the reinforcing beam 23 and the middle beam 22. The connection is convenient and reliable.

[0055] Sliding beams 25 are installed on both sides of the inner formwork frame 1. Support beams 26 are installed below the sliding beams 25. The support beams 26 are hoisted and installed via a suspender rod and arranged in a longitudinal direction. A number of rolling rollers 27 are installed on the sliding beams 25. The rolling rollers 27 are spaced apart in a longitudinal direction and arranged in a longitudinal direction. The rolling rollers 27 are supported by the support beams 26. Several reinforcement beams 23 are installed in a longitudinal direction on the top lower surface. Support beams 28 are installed below the reinforcement beams 23. The support beams 28 and reinforcement beams 23 are tightly connected and supported by the sliding beams 25. Both the support beams 28 and reinforcement beams 23 are U-shaped channel steel structures. The rollers on the sliding beams 25 are supported by the support beams 26, thereby supporting the entire inner formwork frame 1. During movement, the rolling rollers 27 roll along the support beams 26, providing stability and reliability.

[0056] The sliding beam 25 is equipped with an anti-slip mechanism, which includes a primary anti-slip frame 29 and a secondary anti-slip frame 30. Both the primary anti-slip frame 29 and the secondary anti-slip frame 30 are U-shaped structures. The primary anti-slip frame 29 is rotatably connected to an anti-slip roller 31, and the secondary anti-slip frame 30 is equipped with an anti-slip plate 32. The anti-slip roller 31 is arranged higher than the anti-slip plate 32. Both the anti-slip roller 31 and the anti-slip plate 32 are positioned below the support beam 26 and close to the lower surface of the support beam 26. The anti-slip mechanism ensures the vertical positioning of the inner formwork frame 1, preventing the inner formwork frame 1 from separating from the support beam 26.

[0057] The edge of the top plate 2 is rotatably connected to the side plates 33, and the two top plates 2 and the two side plates 33 together form an inverted U-shaped inner mold frame. Through the hinged connection between the side plates 33 and the top plate 2, the side plates 33 can be rotated inward during demoulding to achieve rapid demoulding, and at the same time, it can also avoid other structures when the inner mold structure is moving. An inclined upper connecting portion 34 is provided at the edge of the top plate 2, and an inclined lower connecting portion 35 is provided on the upper part of the side plate 33. The upper connecting portion 34 and the lower connecting portion 35 are correspondingly connected. A fixed plate 36 is provided on the lower side of the upper connecting portion 34, and a rotating plate 37 is provided on the lower side of the lower connecting portion 35. The rotating plate 37 is rotatably connected to the fixed plate 36 via a hinge shaft 38. The upper connecting portion 34 and the lower connecting portion 35 are both tilted to facilitate demoulding. The rotating plate 37 and the fixed plate 36 are rotatably connected via a hinge shaft 38, and the connection is convenient and reliable.

[0058] The two top plates 2 of the bridge-building machine's inner mold are movable. When the thickness of the beam web changes, the top plates 2 are moved to adjust the overall width. The lifting mechanism 4 then fills the gap between the two top plates 2 with supplementary formwork 5, ensuring the integrity of the top plates 2 after sliding, allowing for subsequent pouring of the beam. The telescopic mechanism 3 drives the top plates 2 in a smooth and reliable manner. This mechanism pushes the top plates 2 to slide, ensuring that the two top plates 2 of the inner mold structure always match the required inner mold width, significantly improving the efficiency of the entire bridge-building machine and reducing the cost of the entire bridge-building operation.

[0059] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A bridge-building machine inner mold structure, characterized in that: The utility model comprises an inner mold frame and two oppositely arranged top plates. The top plates are slidably mounted on the inner mold frame. A telescopic mechanism is mounted on the inner mold frame. The telescopic mechanism is connected to the top plates to push the top plates to move.

2. The inner mold structure of a bridge-building machine according to claim 1 is characterized in that: The middle beam is connected by sliding between the two top plates, and after the top plates slide into place, the middle beam and the top plates are locked and positioned.

3. The inner mold structure of a bridge-building machine according to claim 2 is characterized in that: A reinforcing beam is installed on the top plate, a long strip sliding hole is provided on the reinforcing beam, a locking column is connected to the middle beam, and the locking column is connected to the sliding hole by insertion.

4. The inner mold structure of a bridge-building machine according to claim 1 is characterized in that: The telescopic mechanism is one of an electric cylinder, a pneumatic cylinder and an oil cylinder.

5. The inner mold structure of a bridge-building machine according to claim 1 is characterized in that: The edge of the top plate is rotated to connect the side plates, and the two top plates and the two side plates together form an inverted U-shaped inner mold frame.

6. The inner mold structure of a bridge-building machine according to claim 5 is characterized in that: An inclined upper connecting part is set at the edge of the top plate, an inclined lower connecting part is set at the upper part of the side plate, the upper connecting part and the lower connecting part are correspondingly connected, a fixed plate is set at the lower side of the upper connecting part, and a rotating plate is set at the lower side of the lower connecting part, and the rotating plate is rotatably connected to the fixed plate through a hinge shaft.

7. The inner mold structure of a bridge-building machine according to claim 1 is characterized in that: A telescopic rod is arranged on the telescopic mechanism, a mounting seat is arranged on the top plate, and an end portion of the telescopic rod is rotatably connected to the mounting seat.

8. The inner mold structure of a bridge-building machine according to claim 1 is characterized in that: Two upper and lower clamping plates are installed on the inner mold frame. Long strip slots are arranged on the clamping plates. Inserting columns are arranged on the telescopic mechanism. The telescopic mechanism is clamped between the two clamping plates. The inserting columns are movably inserted into the slots.

9. The inner mold structure of a bridge-building machine according to any one of claims 1 to 8, characterized in that: Sliding beams are arranged on both sides of the inner mold frame, and supporting hanging beams are arranged below the sliding beams. A plurality of rolling rollers arranged at intervals are installed on the sliding beams, and the rolling rollers are supported on the supporting hanging beams.

10. The inner mold structure of a bridge-building machine according to claim 9, characterized in that: A plurality of reinforcing beams are arranged at intervals in front and back on the lower surface of the top, a supporting beam is arranged below the reinforcing beam, the supporting beam and the reinforcing beam are fastened and connected, and the supporting beam is supported on the sliding beam.

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