Vertical type pouring hydraulic opening and closing type box culvert mold of piece shaped like Chinese character'mu '

Abstract

The invention relates to a vertically-poured hydraulically-opened-and-closed box culvert mold with pieces shaped like a Chinese character'mu ', and relates to the technical field of box culvert molds. The mold comprises a bottom plate, a front outer mold, a middle culvert inner mold, a rear outer mold and a side culvert inner mold. The front outer mold and the rear outer mold are connected to the bottom plate in a sliding mode through a moving assembly and used for mold closing and mold opening. The front outer mold comprises a top plate outer mold and a corner mold rotationally connected with the top plate outer mold; the rear outer mold comprises an outer arc mold and an outer rotating mold which are hinged; the side culvert inner mold comprises a side culvert longitudinal straight mold, a side culvert front rotating mold, a side culvert rear rotating mold and a side culvert angular mold. Through the modular, movable and rotatable mold design, precise forming and efficient demolding of the complex box culvert shaped like the Chinese character'mu 'are achieved, the problems that demolding of a traditional mold is interfered and operation is complex are effectively solved, and the production efficiency and the product forming quality are improved.

Description

Technical Field

[0001] This application relates to the field of culvert box molds, and particularly to a box culvert mold for vertical pouring with hydraulic opening and closing for a character-shaped component. Background Art

[0002] A box culvert is a precast concrete structural component commonly used in fields such as water conservancy, transportation, and municipal engineering. Its cross-sectional shape is diverse. Among them, the "character-shaped" box culvert is widely used because it has multiple parallel culverts inside, with high structural strength and good water passing capacity. Currently, for the production of the "character-shaped" box culvert, vertical pouring molds are mostly used for molding.

[0003] In the prior art, the vertical box culvert mold mainly includes an outer mold and an inner mold, and both the outer mold and the inner mold are of integral structure. During demolding, the inner mold is integrally withdrawn from the formed concrete box culvert through a hydraulic system. However, for a complex structure like the "character-shaped" with multiple long and narrow inner cavities, However, the integral inner mold has a large contact area with the concrete, resulting in huge demolding resistance, difficult demolding, and easy damage to the concrete surface or even the component. Moreover, due to structural limitations, the demolding slope of the integral inner mold is usually small, further exacerbating the demolding difficulty. Therefore, it needs to be improved. Summary of the Invention

[0004] In order to improve the problems of difficult demolding and low efficiency of the existing box culvert mold, this application provides a box culvert mold for vertical pouring with hydraulic opening and closing for a character-shaped component.

[0005] The box culvert mold for vertical pouring with hydraulic opening and closing for a character-shaped component provided by this application adopts the following technical solutions: A box culvert mold for vertical pouring with hydraulic opening and closing for a character-shaped component includes a bottom plate and a front outer mold, a middle culvert inner mold, two rear outer molds, and two side culvert inner molds arranged on the bottom plate. The middle culvert inner mold is located in the middle of the bottom plate. The two rear outer molds are symmetrically arranged with respect to the central axis of the bottom plate. The two rear outer molds are respectively connected to the two ends of the front outer mold. The end of the middle culvert rear outer mold away from the front outer mold is connected to the middle culvert inner mold. The front outer mold and the two rear outer molds enclose a frame. The two side culvert inner molds are located in the frame. The middle culvert inner mold is located between the two side culvert inner molds. The front outer mold and the rear outer molds are both slidably connected to the bottom plate through moving components. The moving components are used to drive the front outer mold and the rear outer molds to approach or move away from each other. The front outer mold and the rear outer molds are connected through connecting components.

[0006] By adopting the above technical solution, the present application divides the mold into multiple independent functional modules such as a front outer mold, a rear outer mold, a middle culvert inner mold, and side culvert inner molds, achieving accurate disassembly of the complex "eye" - shaped structure. The middle culvert inner mold is located in the middle of the bottom plate and is used to form the middle culvert; the two side culvert inner molds are located on both sides and are used to form the culverts on both sides; the front outer mold and the rear outer mold together enclose to form the overall outer contour. Through the moving components, the front outer mold and the rear outer mold can approach or move away from each other along the bottom plate, so as to close during pouring to form a sealed pouring space and open during demolding to make room for the product to be lifted out. This modular and movable design enables the independent movement of each component without interference, effectively solving the problem of demolding interference caused by rigid connection in traditional molds. The connection components ensure the connection strength between the front outer mold and the rear outer mold in the closed - mold state, guarantee the overall rigidity of the mold, and improve the precision of pouring and forming.

[0007] Optionally, the front outer mold includes a top - plate outer mold and two corner molds. The two corner molds are located on both sides of the top - plate outer mold, and the corner molds are rotationally connected to the top - plate outer mold through a rotating shaft; The middle culvert inner mold includes a middle - culvert front inner mold and two middle - culvert side molds that are slidably connected to the bottom plate. The middle - culvert front inner mold is located between the two middle - culvert side molds; The rear outer mold includes an outer - arc mold and an outer - rotating mold. The two outer - arc molds correspond to the corner molds one by one. One end of the outer - arc mold is connected to the corresponding corner mold, and the other end is hinged to the outer - rotating mold. The two outer - rotating molds correspond to the middle - culvert side molds one by one. The end of the outer - rotating mold far from the outer - arc mold is connected to the corresponding middle - culvert side mold; The side culvert inner mold includes a side - culvert longitudinal straight mold, a side - culvert front - rotating mold, a side - culvert rear - rotating mold, and a side - culvert angular mold. The side - culvert longitudinal straight mold is slidably connected to the bottom plate. The side - culvert front - rotating mold and the side - culvert rear - rotating mold are respectively hinged to both ends of the side - culvert longitudinal straight mold. One end of the side - culvert angular mold is connected to the end of the side - culvert front - rotating mold far from the side - culvert longitudinal straight mold, and the other end is connected to the end of the side - culvert rear - rotating mold far from the side - culvert longitudinal straight mold.

[0008] By adopting the above technical solutions, the rotational connection between the top slab outer mold and the corner mold allows the corner mold to rotate outward during demolding, avoiding interference with the top corner of the already formed box culvert. The inner mold of the middle culvert uses a combination of the front inner mold and two side molds, achieving closure and contraction through sliding, simplifying the demolding process of the middle cavity. The rear outer mold is split into an outer arc mold and an outer rotating mold, which are hinged together, allowing the mold to move in segments when opened, facilitating mold closing and demolding. The inner mold of the side culvert is split into a longitudinal mold, a front rotating mold, a rear rotating mold, and a corner mold. This combined structure allows the inner mold of the side culvert to be smoothly extracted from the narrow side culvert cavity during demolding through a combination of rotation and sliding, avoiding the problems of mold jamming or damage to the concrete surface caused by insufficient draft angle in traditional integral inner molds. This series of designs makes the entire mold system more flexible and adaptable, significantly improving the demolding success rate of complex box culvert structures.

[0009] Optionally, the moving component includes a moving guide rail and a moving cylinder. The moving guide rail is disposed on the base plate, and the moving cylinder is disposed on the moving guide rail. The output end of the moving cylinder is connected to a moving block, and the moving block is slidably connected to the moving guide rail. The moving cylinder is used to drive the moving block to move. The moving block is provided on both the outer arc mold and the top plate outer mold.

[0010] By adopting the above technical solution, the outer arc mold and the top plate outer mold are automatically slidable on the base plate through the cooperation of the moving guide rail and the moving cylinder. The moving cylinder drives the moving block to move along the guide rail, which is smooth and accurate in positioning. It can effectively control the stroke of mold closing and opening, improve the automation level and repeatability of mold operation, reduce manual intervention, and improve production efficiency.

[0011] Optionally, the connecting assembly includes a connecting hook, a connecting rod, a fixing hook, and a fixing rod. The connecting hook is rotatably connected to the outer arc mold, the connecting rod is fixed to the corner mold, the connecting hook can rotate in the direction of the corner mold and hook onto the connecting rod, the fixing hook is rotatably connected to the corner mold, the fixing rod is fixed to the outer arc mold, and the fixing hook can rotate in the direction of the outer arc mold and hook onto the fixing rod.

[0012] By adopting the above technical solution and setting a double-hooking structure of connecting hooks and connecting rods, and fixed hooks and fixed rods, a reliable connection between the outer arc mold and the corner mold is achieved. The connecting hooks and fixed hooks engage from different directions, forming a bidirectional locking mechanism that effectively prevents mold loosening or displacement caused by pouring pressure after mold closing, ensuring the sealing of the mold cavity and molding accuracy. At the same time, the hooking structure is simple to operate, facilitating quick mold closing and demolding.

[0013] Optionally, the moving component includes a moving rod, a moving seat, and two sliders. The moving rod is disposed on the base plate, and the end of the moving rod is rotatably connected to the base plate. The moving seat is slidably connected to the base plate and sleeved on the moving rod. The moving seat is threadedly connected to the moving rod. The two sliders correspond one-to-one with the outer arc molds. The sliders are fixed to the corresponding outer arc molds, and the moving seat is fixed to the sliders.

[0014] By adopting the above technical solution, rotating the moving rod drives the moving seat to move along the axial direction of the moving rod, which in turn drives the outer arc mold to move via the slider. This structure has a self-locking characteristic, which can keep the mold position stable after mold closing and prevent mold displacement due to external forces. At the same time, the screw drive has high transmission accuracy, which is beneficial for achieving precise position adjustment of the outer arc mold and improving the mold closing quality.

[0015] Optionally, the outer mold of the top plate is provided with a rotating assembly for driving the two corner molds to rotate synchronously. The rotating assembly includes a sliding cylinder, two rotating gears, two rotating racks, and two sliding rods. The sliding cylinder is located on the outer mold of the top plate. The two rotating gears correspond one-to-one with the rotating shafts. The rotating gears are coaxially sleeved on the corresponding rotating shafts and fixed to the rotating shafts. The rotating racks are slidably connected to the outer mold of the top plate. The two rotating racks correspond one-to-one with the rotating gears and mesh with the corresponding rotating gears. The two sliding rods are symmetrically arranged about the sliding cylinder as an axis. The two sliding rods correspond one-to-one with the rotating racks. One end of each sliding rod is hinged to the output end of the sliding cylinder, and the other end is hinged to the corresponding rotating rack.

[0016] By adopting the above technical solution, the rotating assembly achieves synchronous and automated opening and closing of the two corner molds. When the sliding cylinder extends or retracts, it drives the two rotating racks to move synchronously via the sliding rod, which in turn drives the rotating gears meshing with them to rotate, ultimately driving the two corner molds to rotate synchronously via the rotating shaft. This ensures the consistency of the movement of the left and right corner molds and avoids mold skewing or interference with the product caused by different opening and closing angles on both sides.

[0017] Optionally, the connecting assembly includes an adjusting member, a positioning rod, and a limiting block. The adjusting member is disposed on the outer arc mold and connected to the positioning rod, used to drive the positioning rod to move towards or away from the corner mold. The corner mold is provided with an insertion hole. One end of the positioning rod is connected to the adjusting member, and the other end is hinged to the limiting block. The adjusting member is used to drive the limiting block to pass horizontally through the insertion hole. The inner wall of the insertion hole is provided with a limiting groove, and the limiting block can be vertically inserted into the limiting groove.

[0018] By adopting the above technical solution, the adjusting component drives the positioning rod to move, causing the positioning rod to move closer to the corner mold until the limiting block is inserted into the insertion hole on the corner mold. Then, the positioning rod is driven to rotate, thereby causing the limiting block to rotate in the insertion hole, so that the limiting block rotates to a vertical state. At this time, the end of the limiting block is inserted into the limiting groove, and the inner wall of the limiting groove abuts against the side wall of the limiting block, thereby preventing the limiting block from being pulled out of the insertion hole, and realizing the fixed connection between the outer arc mold and the corner mold.

[0019] Optionally, the adjusting component includes an adjusting rod and a mounting sleeve. The adjusting rod is rotatably connected to the outer arc mold and coaxially inserted into one end of the positioning rod. The adjusting rod and the positioning rod are threaded together. The mounting sleeve is fitted onto the outer arc mold and onto the positioning rod. The inner wall of the mounting sleeve has a mounting groove arranged along the moving direction of the positioning rod. The side wall of the positioning rod has a mounting block inserted into the mounting groove and movable within the mounting groove. The adjusting rod rotates to drive the positioning rod to move. The outer arc mold has a rotating assembly for driving the adjusting rod to rotate.

[0020] By adopting the above technical solution, the adjusting rod is driven to rotate. Because the adjusting rod and the positioning rod are threaded together, the mounting block on the positioning rod is inserted into the mounting groove. The inner wall of the mounting groove abuts against the inner wall of the mounting block, restricting the rotation of the mounting block. As a result, the positioning rod cannot rotate with the adjusting rod, and thus the positioning rod moves along the length of the adjusting rod. At this time, the mounting block moves in the mounting groove, which not only guides the positioning rod but also restricts its rotation, allowing it to move only along the axial direction, thereby improving the stability and accuracy of the adjustment.

[0021] Optionally, the rotating assembly includes a rotating gear and a rotating rack. The rotating gear is coaxially fixed with the adjusting rod, and the rotating rack is slidably connected to the outer arc mold. The rotating rack meshes with the rotating gear.

[0022] By adopting the above technical solution, the rotating rack drives the rotating gear to rotate when it slides, which in turn drives the adjusting rod to rotate, making it easier to automatically adjust the extension length of the positioning rod and improve the convenience of mold closing connection.

[0023] Optionally, the mounting sleeve is provided with a drive assembly for driving the mounting sleeve to rotate the positioning rod. The drive assembly includes a drive cylinder and a drive gear. The drive cylinder is located on the mounting sleeve, and the drive gear is slidably connected to the mounting sleeve. The output end of the drive cylinder is fixed to the drive gear. The drive cylinder is used to drive the drive gear to move towards or away from the rotating gear. The rotating gear is provided with a limiting tooth groove, and the drive gear can be adapted to be inserted into the limiting tooth groove.

[0024] By adopting the above technical solution, when it is necessary to drive the positioning rod to translate, the driving gear is separated from the rotating gear, and the mounting sleeve is fixed on the outer arc mold, so as to ensure that the positioning rod does not rotate. When the limiting block is inserted into the jack, the driving cylinder is started at this time, so that the driving gearbox moves in the direction of driving the rotating gear until the driving gear is inserted into the limiting tooth groove, and the inner wall of the limiting tooth groove abuts against the side wall of the driving gear to play a limiting role. When the rotating gear rotates, it带动 the driving gear to rotate synchronously, so that the mounting sleeve rotates following the rotation of the adjusting rod, and then the positioning rod rotates self, realizing the rotation of the limiting block, and making the limiting block inserted into the limiting groove. Through the setting of the driving gear, the control of the translation and self-rotation of the positioning rod is realized.

[0025] In summary, the present application includes at least one of the following beneficial effects: 1. By splitting the mold as a whole into multiple independent, movable and rotatable modules, the fine forming and efficient demoulding of the "mesh" - shaped complex culvert are realized. The actions of each module do not interfere with each other, effectively avoiding demoulding jamming and product damage; 2. When it is necessary to drive the positioning rod to translate, the driving gear is separated from the rotating gear, and the mounting sleeve is fixed on the outer arc mold, so as to ensure that the positioning rod does not rotate. When the limiting block is inserted into the jack, the driving cylinder is started at this time, so that the driving gearbox moves in the direction of driving the rotating gear until the driving gear is inserted into the limiting tooth groove, and the inner wall of the limiting tooth groove abuts against the side wall of the driving gear to play a limiting role. When the rotating gear rotates, it带动 the driving gear to rotate synchronously, so that the mounting sleeve rotates following the rotation of the adjusting rod, and then the positioning rod rotates self, realizing the rotation of the limiting block, and making the limiting block inserted into the limiting groove. Through the setting of the driving gear, the control of the translation and self-rotation of the positioning rod is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of Embodiment 1 of the present application; Figure 2 is a side view of Embodiment 1 of the present application; Figure 3 is Figure 2 the enlarged view at A in Figure 4 is a schematic structural diagram of Embodiment 2 of the present application; Figure 5 is a side view of Embodiment 2 of the present application; Figure 6 is Figure 5 the enlarged view at B in <00​​​

[0027] In the diagram: 1. Base plate; 2. Front outer mold; 21. Top plate outer mold; 22. Corner mold; 221. Insertion hole; 222. Limiting groove; 23. Rotating shaft; 3. Inner mold of the culvert; 31. Front inner mold of the culvert; 32. Side mold of the culvert; 4. Rear outer mold; 41. Outer arc mold; 42. Outer rotating mold; 5. Inner mold of the side culvert; 51. Longitudinal mold of the side culvert; 52. Front rotating mold of the side culvert; 53. Rear rotating mold of the side culvert; 54. Corner mold of the side culvert; 6. Moving component; 61. Moving guide rail; 62. Moving cylinder; 63. Moving block; 64. Moving rod; 65. Moving seat; 66. Slider; 7. 71. Connecting component; 72. Connecting hook; 73. Fixing hook; 74. Fixing rod; 75. Adjusting component; 751. Adjusting rod; 752. Mounting sleeve; 7521. Mounting groove; 76. Positioning rod; 761. Mounting block; 77. Limiting block; 78. Rotating component; 781. Rotating gear; 7811. Limiting tooth groove; 782. Rotating rack; 79. Drive component; 791. Drive cylinder; 792. Drive gear; 80. Rotating component; 81. Sliding cylinder; 82. Rotating gear; 83. Rotating rack; 84. Sliding rod. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0029] This application discloses a vertically cast hydraulically opening and closing box culvert mold. Example

[0030] Reference Figure 1 and Figure 2 The vertically cast hydraulically opening and closing box culvert mold includes a base plate 1, a front outer mold 2, a central culvert inner mold 3, two rear outer molds 4, and two side culvert inner molds 5. The base plate 1 serves as the installation foundation for the entire mold. The central culvert inner mold 3 is fixed to the center of the base plate 1 and is used to form the culvert opening in the middle of the box culvert. The two rear outer molds 4 are symmetrically arranged about the central axis of the base plate 1, and are connected to both ends of the front outer mold 2 respectively. The end of the rear outer mold 4 furthest from the front outer mold 2 is connected to the central culvert inner mold 3. The front outer mold 2 and the two rear outer molds 4 together form the outer contour frame of the box culvert. The two side culvert inner molds 5 are located within this frame and symmetrically arranged on both sides of the central culvert inner mold 3, used to form the culvert openings on both sides. Both the front outer mold 2 and the rear outer mold 4 are slidably connected to the base plate 1 via a moving assembly 6. The moving assembly 6 is used to drive the front outer mold 2 and the rear outer mold 4 closer together or further apart, realizing the mold closing and opening actions. The front outer mold 2 and the rear outer mold 4 are also connected by a connecting component 7 to ensure the overall rigidity after mold closing.

[0031] Reference Figure 1 and Figure 2The front outer mold 2 includes a top plate outer mold 21 and two corner molds 22. The two corner molds 22 are located on both sides of the top plate outer mold 21, and each corner mold 22 is rotatably connected to the top plate outer mold 21 via a rotating shaft 23. The culvert inner mold 3 includes a culvert front inner mold 31 slidably connected to the bottom plate 1 and two culvert side molds 32. The culvert front inner mold 31 is located between the two culvert side molds 32. The rear outer mold 4 includes an outer arc mold 41 and an outer rotating mold 42. The two outer arc molds 41 correspond one-to-one with the two corner molds 22. One end of the outer arc mold 41 is connected to the corresponding corner mold 22, and the other end is hinged to the outer rotating mold 42. The two outer rotating molds 42 correspond one-to-one with the two culvert side molds 32. The end of the outer rotating mold 42 away from the outer arc mold 41 is connected to the corresponding culvert side mold 32. The inner mold 5 of the culvert includes a longitudinal mold 51, a front rotating mold 52, a rear rotating mold 53, and a corner mold 54. The longitudinal mold 51 is slidably connected to the base plate 1. The front rotating mold 52 and the rear rotating mold 53 are respectively hinged to both ends of the longitudinal mold 51. One end of the corner mold 54 is connected to the end of the front rotating mold 52 away from the longitudinal mold 51, and the other end is connected to the end of the rear rotating mold 53 away from the longitudinal mold 51.

[0032] Reference Figure 1 and Figure 2 In this embodiment, the moving component 6 includes a moving guide rail 61 and a moving cylinder 62. The moving guide rail 61 is arranged along the length direction of the base plate 1, and the moving cylinder 62 is fixed to one end of the moving guide rail 61. Its output end is connected to a moving block 63, which slides in cooperation with the moving guide rail 61. Moving blocks 63 are fixed on both the outer arc mold 41 and the top plate outer mold 21. Driven by the moving cylinder 62, the moving blocks 63 drive the outer arc mold 41 and the top plate outer mold 21 to slide on the base plate 1.

[0033] Reference Figure 1 and Figure 3 The connecting assembly 7 includes a connecting hook 71, a connecting rod 72, a fixing hook 73, and a fixing rod 74. The connecting hook 71 is rotatably connected to the outer arc mold 41 via a pin, and the connecting rod 72 is fixed to the corner mold 22. When the mold is closed, the outer arc mold 41 moves closer to the corner mold 22, and the connecting hook 71 rotates towards the corner mold 22 and hooks onto the connecting rod 72. At the same time, the fixing hook 73 is rotatably connected to the corner mold 22 via a pin, and the fixing rod 74 is fixed to the outer arc mold 41. The fixing hook 73 rotates towards the outer arc mold 41 and hooks onto the fixing rod 74, forming a bidirectional locking mechanism.

[0034] The implementation principle of Embodiment 1 of this application is as follows: During mold closing, the inner mold components, including the front inner mold 31, the side mold 32, and the longitudinal mold 51 of the culvert, are first slid into place and fixed using the moving component 6, forming an internal cavity. Then, the moving cylinder 62 drives the top plate outer mold 21 and the outer arc mold 41 to move inwards, while simultaneously driving the corner mold 22 to rotate inwards until it is coplanar with the outer arc mold 41. The outer rotating mold 42 also rotates inwards. As the outer arc mold 41 approaches the corner mold 22, the connecting hook 71 and the fixing hook 73 of the connecting component 7 hook onto the connecting rod 72 and the fixing rod 74 respectively, locking the front outer mold 2 and the rear outer mold 4 to form a closed mold cavity. Afterwards, concrete is poured. Once the concrete has cured to its strength, when opening the mold, the locking of the connecting component 7 is first released, and the moving component 6 drives the outer arc mold 41 and the top plate outer mold 21 to move outwards, while simultaneously driving the corner mold 22 to rotate inwards, causing the outer mold to detach from the product. Subsequently, the components of the inner mold 5 of the side culvert and the inner mold 3 of the middle culvert are shrunken in sequence to complete the demolding. Example

[0035] The difference between this embodiment and Embodiment 1 lies in the different structures of the moving component 6 and the connecting component 7.

[0036] Reference Figure 4 and Figure 5 In this embodiment, the moving assembly 6 includes a moving rod 64, a moving seat 65, and two sliders 66. The moving rod 64 is a lead screw, with both ends rotatably connected to the base plate 1. The moving seat 65 is slidably connected to the base plate 1 and has a threaded hole inside that engages with the moving rod 64. The two sliders 66 are respectively fixed to the outer arc mold 41, and the moving seat 65 is fixedly connected to the sliders 66. By driving the moving rod 64 to rotate by a motor, the moving seat 65, sliders 66, and outer arc mold 41 can be moved along the base plate 1, achieving synchronous movement of the two outer arc molds 41 and improving the displacement accuracy of the outer arc mold 41.

[0037] Reference Figure 6 and Figure 7 The connecting assembly 7 includes an adjusting member 75, a positioning rod 76, and a limiting block 77. The adjusting member 75 is disposed on the outer arc mold 41 and includes an adjusting rod 751 and a mounting sleeve 752. The adjusting rod 751 is rotatably connected to the outer arc mold 41, and its outer side wall is provided with external threads. The positioning rod 76 has a hollow structure, one end of which is sleeved on the adjusting rod 751 and threadedly connected to it, and the other end is hinged to the limiting block 77.

[0038] Reference Figure 6 and Figure 8The mounting sleeve 752 is disposed on the outer arc mold 41 and sleeved over the positioning rod 76. The inner wall of the mounting sleeve 752 has an axially extending mounting groove 7521. A mounting block 761, which slides within the mounting groove 7521, is fixed to the side wall of the positioning rod 76 to prevent the positioning rod 76 from rotating with the adjusting rod 751. The outer arc mold 41 also has a rotating assembly 78 for driving the adjusting rod 751 to rotate. This rotating assembly 78 includes a meshing rotating gear 781 and a rotating rack 782. The rotating gear 781 is coaxially fixed to the adjusting rod 751.

[0039] Reference Figure 6 and Figure 8 A cylinder is provided on the outer arc mold 41. The output end of the cylinder is fixed to the rotating rack 782, which is used to drive the rotating rack 782 to move, thereby driving the rotating gear 781 to rotate, and then driving the adjusting rod 751 to rotate. Because the adjusting rod 751 is threadedly engaged with the positioning rod 76, the mounting block 761 on the positioning rod 76 is inserted into the mounting groove 7521. The inner wall of the mounting groove 7521 abuts against the inner wall of the mounting block 761, restricting the rotation of the mounting block 761. This prevents the positioning rod 76 from rotating with the adjusting rod 751, thus allowing the positioning rod 76 to move along the length of the adjusting rod 751.

[0040] During installation, the adjusting rod 751 drives the positioning rod 76 to move closer to the corner mold 22 until the limiting block 77 is horizontally inserted into the insertion hole 221 on the corner mold 22. Then, the positioning rod 76 is driven to rotate, thereby causing the limiting block 77 to rotate in the insertion hole 221, so that the limiting block 77 rotates to a vertical state. At this time, the end of the limiting block 77 is inserted into the limiting groove 222, and the inner wall of the limiting groove 222 abuts against the side wall of the limiting block 77, thereby preventing the limiting block 77 from being pulled out of the insertion hole 221, and realizing the fixed connection between the outer arc mold 41 and the corner mold 22.

[0041] Reference Figure 6 and Figure 8 The mounting sleeve 752 is also equipped with a drive assembly 79 for driving the mounting sleeve 752 to rotate the positioning rod 76. The drive assembly 79 includes a drive cylinder 791 and a drive gear 792. The drive cylinder 791 is fixed to the mounting sleeve 752, and its output end is fixed to the drive gear 792. The drive gear 792 is connected to the mounting sleeve 752 through a telescopic rod, and the drive gear 792 can mesh with the limiting tooth groove 7811 on the rotating gear 781.

[0042] When the positioning rod 76 needs to be moved horizontally, the drive gear 792 separates from the rotating gear 781, and the mounting sleeve 752 is fixed on the outer arc mold 41 to ensure that the positioning rod 76 does not rotate. When the limiting block 77 is inserted into the insertion hole 221, the drive cylinder 791 is activated, causing the drive gear 792 to move in the direction of the rotating gear 781 until the drive gear 792 is inserted into the limiting tooth groove 7811. The inner wall of the limiting tooth groove 7811 abuts against the side wall of the drive gear 792, thus limiting it. When the rotating gear 781 rotates, it drives the drive gear 792 to rotate synchronously, thereby causing the mounting sleeve 752 to rotate with the rotation of the adjusting rod 751, which in turn causes the positioning rod 76 to rotate, realizing the rotation of the limiting block 77. This allows the limiting block 77 to be inserted into the limiting groove 222. Through the setting of the drive gear 792, the translation and rotation of the positioning rod 76 are controlled.

[0043] Reference Figure 4 and Figure 5 The top plate outer mold 21 is equipped with a rotating assembly 8 for driving the two corner molds 22 to rotate synchronously. The rotating assembly 8 includes a sliding cylinder 81, two rotating gears 82, two rotating racks 83, and two sliding rods 84. The sliding cylinder 81 is fixed to the middle of the top plate outer mold 21, and its output end extends away from the top plate outer mold 21. The two rotating gears 82 are coaxially sleeved and fixed on two rotating shafts 23. The two rotating racks 83 are slidably connected to the top plate outer mold 21 and mesh with the corresponding rotating gears 82. The two sliding rods 84 are symmetrically arranged about the sliding cylinder 81, with one end hinged to the output end of the sliding cylinder 81 and the other end hinged to the corresponding rotating rack 83. When the sliding cylinder 81 is activated, the sliding rods 84 drive the two rotating racks 83 to slide synchronously, thereby driving the rotating gears 82 and rotating shafts 23 to rotate, ultimately realizing the synchronous opening and closing of the two corner molds 22.

[0044] The implementation principle of Embodiment 2 of this application is as follows: During mold closing, after the outer arc mold 41 moves into place, the positioning rod 76 needs to be extended first. At this time, the drive cylinder 791 retracts, causing the drive gear 792 to disengage from the rotating gear 781. The rotating assembly 78 drives the adjusting rod 751 to rotate. Due to the restriction of the mounting block 761 and the mounting groove 7521, the positioning rod 76 cannot rotate and can only extend axially until the limiting block 77 passes through the insertion hole 221 on the corner mold 22. Then, the drive cylinder 791 extends, causing the drive gear 792 to insert into the limiting tooth groove 7811 of the rotating gear 781. The rotating assembly 78 drives the rotating gear 781 to rotate again. This time, because the drive gear 792 meshes with the limiting tooth groove 7811, it drives the mounting sleeve 752 and the positioning rod 76 to rotate together, thereby causing the limiting block 77 to rotate 90 degrees within the insertion hole 221, and its end is locked into the limiting groove 222 on the inner wall of the insertion hole 221. When opening the mold, the action sequence is reversed: first rotate the positioning rod 76 to reset the limiting block 77, and then pull it out.

[0045] This application embodiment also provides a control method for the above-mentioned vertical casting hydraulic opening and closing box culvert mold, including the following steps: S1: Demolding open state, install bottom mold lifting point base plate.

[0046] S2: Hoist the steel cage into the mold and position it correctly.

[0047] S3: Use a special lifting tool to install the window mold.

[0048] S4: Sequentially operate the two side molds 32 and the front inner mold 31 of the culvert.

[0049] S5: Sequentially operate the culvert longitudinal mold 51, culvert front rotating mold 52, culvert rear rotating mold 53 and culvert corner mold 54 of one set of culvert inner mold 5.

[0050] S6: Sequentially operate the longitudinal mold 51, the front rotating mold 52, the rear rotating mold 53, and the corner mold 54 of the other set of side culvert inner molds 5.

[0051] S7: Lock the bolts at the 54 joints of the corner mold.

[0052] S8: Outer mold of mold top plate 21.

[0053] S9: Mold closing and external mold transfer 42.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vertically cast hydraulically opening and closing box culvert mold, characterized in that, The system includes a base plate (1) and a front outer mold (2), a central culvert inner mold (3), two rear outer molds (4), and two side culvert inner molds (5) mounted on the base plate (1). The central culvert inner mold (3) is located in the middle of the base plate (1). The two rear outer molds (4) are arranged symmetrically about the central axis of the base plate (1). The two rear outer molds (4) are connected to both ends of the front outer mold (2). The end of the rear outer mold (4) of the central culvert away from the front outer mold (2) is connected to the central culvert inner mold (3). The front outer mold... (2) and two rear outer molds (4) enclose to form a frame, the two side culvert inner molds (5) are located in the frame, the middle culvert inner mold (3) is located between the two side culvert inner molds (5), the front outer mold (2) and the rear outer mold (4) are slidably connected to the base plate (1) by a moving component (6), the moving component (6) is used to drive the front outer mold (2) and the rear outer mold (4) to move closer or further away from each other, the front outer mold (2) and the rear outer mold (4) are connected by a connecting component (7).

2. The vertical casting hydraulically opening and closing box culvert mold according to claim 1, characterized in that, The front outer mold (2) includes a top plate outer mold (21) and two corner molds (22). The two corner molds (22) are located on both sides of the top plate outer mold (21), and the corner molds (22) are rotatably connected to the top plate outer mold (21) through a rotating shaft (23). The inner mold (3) of the culvert includes a front inner mold (31) of the culvert and two side molds (32) of the culvert that are slidably connected to the base plate (1). The front inner mold (31) of the culvert is located between the two side molds (32). The rear outer mold (4) includes an outer arc mold (41) and an outer rotating mold (42). The two outer arc molds (41) correspond one-to-one with the corner mold (22). One end of the outer arc mold (41) is connected to the corresponding corner mold (22), and the other end is hinged to the outer rotating mold (42). The two outer rotating molds (42) correspond one-to-one with the middle culvert side mold (32). The end of the outer rotating mold (42) away from the outer arc mold (41) is connected to the corresponding middle culvert side mold (32). The inner mold (5) of the culvert includes a longitudinal mold (51), a front rotating mold (52), a rear rotating mold (53), and a corner mold (54). The longitudinal mold (51) is slidably connected to the base plate (1). The front rotating mold (52) and the rear rotating mold (53) are respectively hinged to both ends of the longitudinal mold (51). One end of the corner mold (54) is connected to the end of the front rotating mold (52) away from the longitudinal mold (51), and the other end is connected to the end of the rear rotating mold (53) away from the longitudinal mold (51).

3. The vertical casting hydraulically opening and closing box culvert mold according to claim 2, characterized in that, The moving component (6) includes a moving guide rail (61) and a moving cylinder (62). The moving guide rail (61) is located on the base plate (1), and the moving cylinder (62) is located on the moving guide rail (61). The output end of the moving cylinder (62) is connected to a moving block (63). The moving block (63) is slidably connected to the moving guide rail (61). The moving cylinder (62) is used to drive the moving block (63) to move. The moving block (63) is provided on both the outer arc mold (41) and the top plate outer mold (21).

4. The vertical casting hydraulically opening and closing box culvert mold according to claim 2, characterized in that, The connecting assembly (7) includes a connecting hook (71), a connecting rod (72), a fixing hook (73), and a fixing rod (74). The connecting hook (71) is rotatably connected to the outer arc mold (41), and the connecting rod (72) is fixed to the corner mold (22). The connecting hook (71) can rotate in the direction of the corner mold (22) and hook onto the connecting rod (72). The fixing hook (73) is rotatably connected to the corner mold (22), and the fixing rod (74) is fixed to the outer arc mold (41). The fixing hook (73) can rotate in the direction of the outer arc mold (41) and hook onto the fixing rod (74).

5. The vertical casting hydraulically opening and closing box culvert mold according to claim 2, characterized in that, The moving component (6) includes a moving rod (64), a moving seat (65), and two sliders (66). The moving rod (64) is mounted on the base plate (1), and the end of the moving rod (64) is rotatably connected to the base plate (1). The moving seat (65) is slidably connected to the base plate (1) and is sleeved on the moving rod (64). The moving seat (65) is threadedly connected to the moving rod (64). The two sliders (66) correspond one-to-one with the outer arc mold (41). The sliders (66) are fixed to the corresponding outer arc mold (41), and the moving seat (65) is fixed to the sliders (66).

6. The vertical casting hydraulically opening and closing box culvert mold according to claim 2, characterized in that, The top plate outer mold (21) is provided with a rotating assembly (8) for driving the two corner molds (22) to rotate synchronously. The rotating assembly (8) includes a sliding cylinder (81), two rotating gears (82), two rotating racks (83), and two sliding rods (84). The sliding cylinder (81) is located on the top plate outer mold (21). The two rotating gears (82) correspond one-to-one with the rotating shafts (23). The rotating gears (82) are coaxially sleeved on the corresponding rotating shafts (23). The rotating rack (83) is fixed and slidably connected to the outer mold (21) of the top plate. The two rotating racks (83) correspond one-to-one with the rotating gears (82). The rotating racks (83) mesh with the corresponding rotating gears (82). The two sliding rods (84) are arranged symmetrically about the sliding cylinder (81). The two sliding rods (84) correspond one-to-one with the rotating racks (83). One end of the sliding rod (84) is hinged to the output end of the sliding cylinder (81), and the other end is hinged to the corresponding rotating rack (83).

7. The vertical casting hydraulically opening and closing box culvert mold according to claim 2, characterized in that, The connecting assembly (7) includes an adjusting member (75), a positioning rod (76), and a limiting block (77). The adjusting member (75) is disposed on the outer arc mold (41). The adjusting member (75) is connected to the positioning rod (76) and is used to drive the positioning rod (76) to move towards or away from the corner mold (22). The corner mold (22) is provided with an insertion hole (221). One end of the positioning rod (76) is connected to the adjusting member (75), and the other end is hinged to the limiting block (77). The adjusting member (75) is used to drive the limiting block (77) to pass horizontally through the insertion hole (221). The inner wall of the insertion hole (221) is provided with a limiting groove (222), and the limiting block (77) can be vertically inserted into the limiting groove (222).

8. The vertical casting hydraulically opening and closing box culvert mold according to claim 7, characterized in that, The adjusting component (75) includes an adjusting rod (751) and a mounting sleeve (752). The adjusting rod (751) is rotatably connected to the outer arc mold (41). The adjusting rod (751) is coaxially inserted into one end of the positioning rod (76). The adjusting rod (751) and the positioning rod (76) are threadedly connected. The mounting sleeve (752) is disposed on the outer arc mold (41) and sleeved on the positioning rod (76). The inner wall of the mounting sleeve (752) is provided with... The mounting groove (7521) is arranged along the moving direction of the positioning rod (76). The side wall of the positioning rod (76) is provided with a mounting block (761). The mounting block (761) is inserted into the mounting groove (7521) and can move in the mounting groove (7521). The adjusting rod (751) rotates to drive the positioning rod (76) to move. The outer arc mold (41) is provided with a rotating component (78) for driving the adjusting rod (751) to rotate.

9. The vertical casting hydraulically opening and closing box culvert mold according to claim 8, characterized in that, The rotating assembly (78) includes a rotating gear (781) and a rotating rack (782). The rotating gear (781) is coaxially fixed with the adjusting rod (751), and the rotating rack (782) is slidably connected to the outer arc mold (41). The rotating rack (782) meshes with the rotating gear (781).

10. The vertical casting hydraulically opening and closing box culvert mold according to claim 9, characterized in that, The mounting sleeve (752) is provided with a drive assembly (79) for driving the mounting sleeve (752) to rotate the positioning rod (76). The drive assembly (79) includes a drive cylinder (791) and a drive gear (792). The drive cylinder (791) is located on the mounting sleeve (752), and the drive gear (792) is slidably connected to the mounting sleeve (752). The output end of the drive cylinder (791) is fixed to the drive gear (792). The drive cylinder (791) is used to drive the drive gear (792) to move closer to or away from the rotating gear (781). The rotating gear (781) is provided with a limiting tooth groove (7811), and the drive gear (792) can be adapted to be inserted into the limiting tooth groove (7811).

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