An integral hydraulic casting formwork

Abstract

The present invention relates to the technical field of casting forms, and discloses an integral hydraulic casting form, which includes a bottom form system, an inner form system, an outer form system and an end form system. It further includes a guide beam, which is used for positioning and assembling the inner form system. The guide beam is arranged above the bottom form assembly along the length direction of the bottom form assembly. The inner form system includes a plurality of inner form assemblies arranged in an array along the length direction of the guide beam. The inner form assembly includes an inner form plate assembly and a support assembly. The inner form plate assembly is slidably sleeved on the guide beam. The inner form plate assembly includes two groups of inner form plate mechanisms arranged in opposite mirror images. The inner form plate mechanism includes an upper inner form plate and a lower inner form plate. The support assembly is used to control the opening and closing of the inner form plate mechanism. The present invention provides an integral hydraulic casting form, which can solve or at least alleviate the problems that there are many joints in the inner form of the existing hydraulic form and deformation is likely to occur, affecting the flatness and position accuracy of the inner hole of the box girder.

Description

Technical Field

[0001] The invention relates to the technical field of formwork, and in particular to an integral hydraulic casting formwork. Background Art

[0002] With the rapid development of modern transportation, bridge construction has become an important part of urban construction and planning. In bridge construction, box girder formwork is an indispensable auxiliary part, and its main function is to protect the box girder from external damage. However, there are some problems with traditional prefabricated box girder formwork, such as insufficient formwork strength, insufficient rigidity, and short service life, which limit the use effect and service life of the box girder formwork.

[0003] To solve these problems, a new type of hydraulic formwork came into being. Compared with the traditional formwork, the new hydraulic formwork has many advantages, such as the formwork is made of high-strength materials, has sufficient rigidity and stability, and can effectively protect the box beam from external damage.

[0004] In the prior art, the demoulding process of hydraulic templates has widely adopted the hydraulic cylinder to drive the contraction action of the multi-section articulated template (for example, the hydraulic slide disclosed in CN117817807A cooperates with the moving component to realize template demoulding, and the hydraulic opening and closing unit disclosed in CN116872333A controls the closing and opening of the template). This type of technology realizes the synchronous opening and closing of the template through a hydraulic linkage mechanism, and its action principle is common knowledge in the field.

[0005] The outer mold of the hydraulic formwork is driven by the hydraulic cylinder to move horizontally to the outside of the box beam after casting, and the outer mold can be demoulded. The inner mold is located inside the box beam, and the inner mold can only shrink inward when demoulding. Therefore, the inner mold mostly adopts a multi-section hinged structure, and the hydraulic cylinder is used to make the multi-section inner mold rotate inward and shrink, so as to complete the demoulding. At present, the inner mold of the hydraulic formwork has many sections, which produces more joints. The more joints there are, the greater the probability of template leakage, which will also affect the flatness of the box beam appearance.

[0006] For example, a prefabricated railway box girder hydraulic formwork structure with publication number CN118342614A specifically relates to the technical field of box girder formwork. In the present invention, a laser 1 emits a parallel red light beam against the top surface of the side block formwork. The height difference can be visually observed through this beam, and as the gear and the fixed rack are meshed and transmitted, the transmission seat slides along the side block formwork. In order to facilitate the scraping of the upper surface of the concrete, a scraping plate is installed between the two transmission seats, and the bottom surface of the scraping plate is flush with the red light beam. The upper surface of the prefabricated box girder is scraped while calibrating; a longitudinal light beam is emitted toward the bottom of the prefabricated box girder by laser 2, and then the rotary cylinder is rotated 90 degrees. The laser 2 changes from longitudinal to transverse, that is, a transverse light beam is emitted toward the bottom of the prefabricated box girder, and the transverse position can be changed with the slide, so as to assist the construction personnel in leveling the bottom of the box girder to obtain a flat prefabricated box girder.

[0007] However, although this solution ensures the flatness of the outside of the precast box girder, the internal formwork is inside the box girder, and this solution cannot ensure the flatness of the inner holes of the box girder. After the internal formwork is assembled, it has a long length. When using a lifting tool to hoist the assembled internal formwork as a whole into the external formwork, the internal formwork will undergo complete deformation, and the deformation of the internal formwork affects the flatness and position accuracy of the inner holes of the box girder formed by pouring. At the same time, in the prior art, the internal formwork is divided into six sections and controlled to open and close by twelve oil cylinders, its structure is complex, and the six joints are also prone to leakage and affect the flatness of the box girder. Summary of the Invention

[0008] The purpose of the present invention is to overcome the deficiencies in the prior art, solve or at least mitigate the problems that the internal formwork joints of the existing hydraulic formwork are numerous and prone to deformation, affecting the flatness and position accuracy of the inner holes of the box girder, and provide an integral hydraulic casting formwork.

[0009] To achieve the above object, the present invention provides the following technical solution: An integral hydraulic casting formwork, including a bottom formwork system, an internal formwork system, an external formwork system, and an end formwork system. The two external formwork systems are relatively mirror - set on both sides above the bottom formwork assembly. The two end formwork systems are respectively located at both ends of the bottom formwork system and are hermetically connected to the ends of the external formwork system. The internal formwork system is located in the space formed by the bottom formwork system, the external formwork system, and the end formwork system, and further includes:

[0010] A guide beam, which is used to position and assemble the internal formwork system. The guide beam is arranged above the bottom formwork assembly along the length direction of the bottom formwork assembly. One end of the guide beam is fitted into one of the end formwork systems, and the other end extends outwards through the other end formwork system.

[0011] The internal formwork system includes a plurality of internal formwork components arranged in an array along the length direction of the guide beam. The internal formwork component includes:

[0012] An internal formwork component, the internal formwork component is slidably sleeved on the guide beam. The internal formwork component includes two sets of relatively mirror - set internal formwork mechanisms. The internal formwork mechanism includes an upper internal formwork and a lower internal formwork. One end of the upper internal formwork is hinged to the end of the lower internal formwork, and the ends of the upper internal formworks of the two internal formwork mechanisms away from the lower internal formworks overlap each other.

[0013] A support assembly, which is used to control the opening and closing of the internal formwork mechanism. A plurality of support assemblies are arranged along the length direction of the internal formwork component. The support assembly includes a positioning sleeve and a support mechanism. The positioning sleeve is slidably sleeved on the guide beam, and the two support mechanisms are respectively located on both sides of the positioning sleeve.

[0014] Preferably, the support mechanism includes:

[0015] Support hydraulic cylinder, the support hydraulic cylinder is horizontally arranged, the fixed part of the support hydraulic cylinder is fixedly arranged on the side surface of the positioning sleeve, and the end of the telescopic part of the support hydraulic cylinder is hinged at the hinge joint of the upper inner template and the lower inner template;

[0016] Sliding sleeve, the sliding sleeve is slidably sleeved on the telescopic part of the support hydraulic cylinder, and the sliding sleeve moves synchronously and in the opposite direction to the telescopic part of the support hydraulic cylinder;

[0017] Upper connecting rod, both ends of the upper connecting rod are respectively hinged to the sliding sleeve and one end of the upper inner template away from the lower inner template;

[0018] Lower connecting rod, both ends of the lower connecting rod are respectively hinged to the sliding sleeve and one end of the lower inner template away from the upper inner template.

[0019] Preferably, the support mechanism further includes a linkage mechanism for making the sliding sleeve move synchronously and in the opposite direction to the telescopic part of the support hydraulic cylinder. The linkage mechanism includes:

[0020] Positioning plate, the positioning plate is fixedly arranged on the side surface of the fixed part of the support hydraulic cylinder;

[0021] Linkage gear, the linkage gear is rotatably arranged on the positioning plate;

[0022] First linkage rack, the first linkage rack is arranged along the telescopic direction of the telescopic part of the support hydraulic cylinder and is fixedly arranged on the front part of the telescopic part of the support hydraulic cylinder, and the first linkage rack meshes with the linkage gear;

[0023] Second linkage rack, the second linkage rack is arranged along the sliding direction of the sliding sleeve and is fixedly arranged on the sliding sleeve, and the second linkage rack meshes with the linkage gear.

[0024] Preferably, the inner mold system further includes a leveling component for making all inner mold components at the same height position. The leveling component includes:

[0025] Leveling oil cylinder, the number of leveling oil cylinders is equal to and corresponds to the number of positioning sleeves one by one. The leveling oil cylinders are vertically arranged in the upper part of the positioning sleeves. The fixed part of the leveling oil cylinder is fixedly arranged on the top surface of the positioning sleeve, and the telescopic part of the leveling oil cylinder extends vertically downward and faces the guide beam;

[0026] Traveling wheel, the traveling wheel is rotatably arranged at the end of the telescopic part of the leveling oil cylinder, and the traveling wheel rolls and fits on the upper surface of the guide beam.

[0027] Preferably, the leveling oil cylinders of two adjacent inner mold components extend and contract synchronously and in the opposite direction. Among them, the leveling oil cylinder of one inner mold component is in a contracted state before leveling, and the leveling oil cylinder of the other inner mold component is in an extended state before leveling;

[0028] The leveling component further includes:

[0029] The limiting plates, two of which are respectively arranged at both ends of the inner mold assembly where the leveling oil cylinder is in a contracted state before leveling. One end of the limiting plate is fixedly arranged on the positioning sleeve at the end of the inner mold assembly, and the other end extends horizontally outward. After leveling, the extended end of the limiting plate extends into the positioning sleeve at the end of another inner mold assembly and fits against the top plate of the positioning sleeve.

[0030] Preferably, a limiting groove is arranged along the length direction on the upper surface of the guide beam, and the traveling wheels are rollingly arranged in the limiting groove.

[0031] Preferably, the bottom mold system includes:

[0032] A pedestal, which is made of concrete;

[0033] A bottom template, which is horizontally laid above the pedestal;

[0034] Brackets, which are located between the pedestal and the bottom template, and a plurality of brackets are arranged in an equidistant array;

[0035] A height adjusting mechanism, which is used to make the upper surfaces of all brackets at the same horizontal height, and the height adjusting mechanism is located at both ends of the brackets.

[0036] Preferably, the outer mold system includes:

[0037] An outer template;

[0038] An installation frame, which is used to fix the outer template;

[0039] An adjustment assembly, which is used to adjust the lateral position and height position of the installation frame;

[0040] A guide rail, which is arranged along the length direction of the bottom mold system;

[0041] A traveling assembly, which is used to drive the installation frame to move along the guide rail.

[0042] Preferably, the end mold system includes:

[0043] An end template;

[0044] A traveling vehicle, which is used to drive the end template to move along the guide rail, and the end template is installed at one end of the traveling vehicle facing the outer mold system;

[0045] A pressing oil cylinder, which is used to press the end template against the outer mold system, and the pressing oil cylinder is arranged at one end of the traveling vehicle away from the outer mold system.

[0046] The beneficial effects of the present invention are:

[0047] 1. The inner template assembly of the present invention adopts a four-section structure, with only four seams, which has fewer seams compared to the current inner mold structure, reduces the leakage probability, and has better flatness of the appearance.

[0048] 2. The inner mold assembly of the present invention controls the opening and closing of the inner template assembly through support hydraulic cylinders horizontally arranged on both sides of the positioning sleeve, reducing the number of used hydraulic cylinders. The structure is simple and reliable. When the support hydraulic cylinders contract, the inner template mechanism moves inward horizontally, disengaging from the inner side of the box girder. At the same time, it drives the sliding sleeve to move horizontally, causing the upper inner template and the lower inner template to rotate inward, and the upper inner template and the lower inner template are respectively disengaged from the top surface and the bottom surface inside the box girder. Since the number of hydraulic cylinders is greatly reduced, the total weight of the inner mold system is also correspondingly reduced, thereby reducing the deformation amount of the inner mold system due to gravity, and thus ensuring the flatness and position accuracy of the inner hole of the box girder.

[0049] 3. The inner mold assembly of the present invention enters the outer mold system from the end face of the outer mold system along the guide beam, and multiple inner mold assemblies form an inner mold system inside the outer mold system, avoiding deformation during conventional hoisting and further ensuring the flatness and position accuracy of the inner hole of the box girder. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 is a schematic structural diagram of the present invention.

[0051] Figure 2 is one of the structural cross-sectional views of the present invention.

[0052] Figure 3 is another structural cross-sectional view of the present invention.

[0053] Figure 4 is of the present invention Figure 3 enlarged view of part A.

[0054] Figure 5 is a schematic structural diagram of the inner mold system of the present invention.

[0055] Figure 6 is a front view of the inner mold system of the present invention.

[0056] Figure 7 is a schematic structural diagram of the support assembly of the present invention.

[0057] Figure 8 is a structural cross-sectional view of the support assembly of the present invention.

[0058] Figure 9 is of the present invention Figure 8 cross-sectional view taken along line B-B.

[0059] Figure 10 is a schematic structural diagram of the outer mold system of the present invention.

[0060] Figure 11 is a schematic structural diagram of the end mold system of the present invention.

[0061] Figure 12Schematic structural diagram of the bottom die system of the present invention.

[0062] The reference numerals are as follows:

[0063] 1 - guide beam; 2 - upper inner formwork; 3 - lower inner formwork; 4 - positioning sleeve; 5 - sliding sleeve; 6 - upper connecting rod; 7 - lower connecting rod; 8 - positioning plate; 9 - linkage gear; 10 - first linkage rack; 11 - second linkage rack; 12 - leveling oil cylinder; 13 - traveling wheel; 14 - limiting plate; 15 - pedestal; 16 - bottom formwork; 17 - bracket; 18 - outer formwork; 19 - mounting frame; 20 - traveling assembly; 21 - guide rail; 22 - end formwork; 23 - traveling vehicle; 24 - pressing oil cylinder; 25 - supporting hydraulic cylinder. Detailed implementation manners

[0064] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present invention.

[0066] Embodiment 1

[0067] The outer formwork of the hydraulic formwork is driven by a hydraulic cylinder to translate outward to the outside of the cast box girder, and the demoulding of the outer formwork can be completed. The inner formwork is located inside the box girder. When the inner formwork is demoulded, it can only contract inward. Therefore, the inner formwork mostly adopts a multi-section hinged structure, and the multi-section inner formwork is rotated and contracted inward by a hydraulic cylinder to complete the demoulding. At present, the inner formwork of the hydraulic formwork has more segments, resulting in more joints. The more joints there are, the greater the probability of formwork leakage, and it will also affect the flatness of the appearance of the box girder.

[0068] After the inner formwork is assembled, its length is relatively long. When the assembled inner formwork is hoisted as a whole into the outer formwork by a lifting tool, the inner formwork will be completely deformed, and the deformation of the inner formwork affects the flatness and position accuracy of the inner hole of the cast box girder.

[0069] Refer to Figures 1-12, An integral hydraulic casting formwork, comprising a bottom formwork system, an inner formwork system, an outer formwork system and an end formwork system. Two outer formwork systems are relatively mirror - arranged on both sides above the bottom formwork assembly. Two end formwork systems are respectively located at both ends of the bottom formwork system and are hermetically connected to the ends of the outer formwork system. The inner formwork system is located within the space formed by the bottom formwork system, the outer formwork system and the end formwork system. It also includes a guide beam 1, which is used to position and assemble the inner formwork system. The guide beam 1 is arranged above the bottom formwork assembly along the length direction of the bottom formwork assembly. One end of the guide beam 1 is fitted into one of the end formwork systems, and the other end extends outwards through the other end formwork system;

[0070] The inner formwork system includes a plurality of inner formwork components arranged in an array along the length direction of the guide beam 1. The inner formwork component includes an inner formwork plate component and a support component;

[0071] The inner formwork plate component is slidably sleeved on the guide beam 1. The inner formwork plate component includes two groups of relatively mirror - arranged inner formwork mechanisms. The inner formwork mechanism includes an upper inner formwork 2 and a lower inner formwork 3. One end of the upper inner formwork 2 is hinged to the end of the lower inner formwork 3. The ends of the upper inner formworks 2 of the two inner formwork mechanisms that are far from the lower inner formworks 3 overlap each other;

[0072] The support component is used to control the opening and closing of the inner formwork mechanism. A plurality of support components are arranged along the length direction of the inner formwork component. The support component includes a positioning sleeve 4 and a support mechanism. The positioning sleeve 4 is slidably sleeved on the guide beam 1. The two support mechanisms are respectively located on both sides of the positioning sleeve 4.

[0073] The bottom formwork system includes a pedestal 15, a bottom formwork 16, brackets 17 and a height - adjusting mechanism,

[0074] The pedestal 15 is made of concrete. The bottom formwork 16 is horizontally laid above the pedestal 15. The brackets 17 are located between the pedestal 15 and the bottom formwork 16. A plurality of brackets 17 are arranged in an equidistant array. The height - adjusting mechanism is used to make the upper surfaces of all the brackets 17 at the same horizontal height. The height - adjusting mechanism is located at both ends of the brackets 17. In this embodiment, the height - adjusting mechanism is a screw mechanism.

[0075] The outer formwork system includes an outer formwork 18, a mounting frame 19, an adjustment component, a guide rail 21 and a traveling component 20;

[0076] The mounting frame 19 is used to fix the outer formwork 18. The adjustment component is used to adjust the lateral position and height position of the mounting frame 19. The adjustment component includes hydraulic cylinders arranged horizontally and vertically. The guide rail 21 is arranged along the length direction of the bottom formwork system. The traveling component 20 is used to drive the mounting frame 19 to move along the guide rail 21.

[0077] The end formwork system includes an end formwork 22, a traveling vehicle 23 and a pressing oil cylinder 24;

[0078] The walking vehicle 23 is used to drive the end formwork 22 to move along the guide rail 21. The end formwork 22 is installed at one end of the walking vehicle 23 facing the external formwork system. The pressing oil cylinder 24 is used to press the end formwork 22 against the external formwork system, and the pressing oil cylinder 24 is arranged at one end of the walking vehicle 23 away from the external formwork system.

[0079] The inner formwork assembly adopts a four-section structure with only four joints, which has fewer joints than the current inner formwork structure, reduces the leakage probability, and has better flatness of the appearance.

[0080] The inner formwork assembly enters the external formwork system along the guide beam 1 from the end face of the external formwork system. Multiple inner formwork assemblies form an inner formwork system inside the external formwork system, avoiding deformation during conventional hoisting and further ensuring the flatness and position accuracy of the inner hole of the box girder.

[0081] Embodiment 2

[0082] In the prior art, the number of oil cylinders required to control the opening and closing of the inner formwork is large, which not only makes the structure complex, but also increases the overall weight of the inner formwork, exacerbating the bending deformation of the inner formwork caused by gravity.

[0083] Refer to Figures 6-9 , the support mechanism includes a support hydraulic cylinder 25, a sliding sleeve 5, an upper connecting rod 6 and a lower connecting rod 7;

[0084] The support hydraulic cylinder 25 is arranged horizontally. The fixed part of the support hydraulic cylinder 25 is fixedly arranged on the side of the positioning sleeve 4, and the end of the telescopic part of the support hydraulic cylinder 25 is hinged at the hinge joint of the upper inner formwork 2 and the lower inner formwork 3;

[0085] The sliding sleeve 5 is slidably sleeved on the telescopic part of the support hydraulic cylinder 25, and the sliding sleeve 5 moves synchronously and in the opposite direction to the telescopic part of the support hydraulic cylinder 25;

[0086] Both ends of the upper connecting rod 6 are respectively hinged to the sliding sleeve 5 and one end of the upper inner formwork 2 away from the lower inner formwork 3;

[0087] Both ends of the lower connecting rod 7 are respectively hinged to the sliding sleeve 5 and one end of the lower inner formwork 3 away from the upper inner formwork 2.

[0088] The support mechanism further includes a linkage mechanism, which is used to make the sliding sleeve 5 move synchronously and in the opposite direction to the telescopic part of the support hydraulic cylinder 25. The linkage mechanism includes a positioning plate 8, a linkage gear 9, a first linkage rack 10 and a second linkage rack 11;

[0089] The positioning plate 8 is fixedly arranged on the side of the fixed part of the support hydraulic cylinder 25. The linkage gear 9 is rotatably arranged on the positioning plate 8. The first linkage rack 10 is arranged along the telescopic direction of the telescopic part of the support hydraulic cylinder 25 and is fixedly arranged at the front part of the telescopic part of the support hydraulic cylinder 25. The first linkage rack 10 meshes with the linkage gear 9. The second linkage rack 11 is arranged along the sliding direction of the sliding sleeve 5 and is fixedly arranged on the sliding sleeve 5. The second linkage rack 11 meshes with the linkage gear 9.

[0090] The opening and closing of the inner formwork assembly is controlled by the support hydraulic cylinders 25 horizontally arranged on both sides of the positioning sleeve 4, reducing the number of hydraulic cylinders used. The structure is simple and reliable. When the support hydraulic cylinders 25 contract, the inner formwork mechanism moves inward horizontally, separating the inner formwork mechanism from the inner side of the box girder. At the same time, the sliding sleeve 5 is driven to move horizontally, causing the upper inner formwork 2 and the lower inner formwork 3 to rotate inward, and the upper inner formwork 2 and the lower inner formwork 3 are respectively separated from the top surface and the bottom surface inside the box girder. Since the number of hydraulic cylinders is greatly reduced, the total weight of the inner form system is also correspondingly reduced, thereby reducing the deformation amount of the inner form system due to gravity, and ensuring the flatness and position accuracy of the inner hole of the box girder.

[0091] Embodiment III

[0092] In the prior art, the inner form is directly placed on the steel wire cage inside the outer form. The shape of the steel wire cage is not easy to accurately control, which in turn makes it difficult to accurately position the position state of the inner form inside the outer form, ultimately affecting the position accuracy of the inner hole of the box girder. At the same time, the bottom surface of the inner form directly contacts the steel wire cage. After pouring, the part of the steel wire cage in contact with the bottom surface of the inner form will be exposed to the air, which will accelerate the corrosion of the steel wire cage and affect the service life of the box girder.

[0093] In the technical solution of Embodiment I, although multiple inner form components are re - combined into an inner form system inside the outer form system to avoid deformation during conventional hoisting, the guide beam 1 is horizontally arranged inside the outer form system. After the inner form components are arranged behind the guide beam 1, the guide beam 1 will also generate bending deformation due to gravity, which not only affects the splicing between the inner form components but also affects the position accuracy of the inner hole of the box girder.

[0094] Refer to Figure 3 、 Figure 4 and Figures 6-9 The inner form system further includes a leveling component, which is used to make all inner form components at the same height position. The leveling component includes a leveling oil cylinder 12 and a walking wheel 13;

[0095] The number of leveling oil cylinders 12 is equal to and corresponds one - to - one with the number of positioning sleeves 4. The leveling oil cylinders 12 are vertically arranged in the upper part of the positioning sleeves 4. The fixed part of the leveling oil cylinder 12 is fixedly arranged on the top surface of the positioning sleeve 4, and the telescopic part of the leveling oil cylinder 12 extends vertically downward and faces the guide beam 1;

[0096] The walking wheels 13 are rotatably arranged at the end of the telescopic part of the leveling oil cylinder 12. The walking wheels 13 roll and fit on the upper surface of the guide beam 1. A limiting groove is arranged along the length direction of the upper surface of the guide beam 1, and the walking wheels 13 are rotatably arranged in the limiting groove.

[0097] The leveling oil cylinders 12 of two adjacent inner form components synchronously extend and retract in the opposite direction. Among them, the leveling oil cylinder 12 of one inner form component is in a contracted state before leveling, and the leveling oil cylinder 12 of the other inner form component is in an extended state before leveling;

[0098] The leveling assembly further includes a limiting plate 14. The two limiting plates 14 are respectively arranged at both ends of the inner mold assembly in a contracted state before leveling of the leveling oil cylinder 12. One end of the limiting plate 14 is fixedly arranged on the positioning sleeve 4 at the end of the inner mold assembly, and the other end extends horizontally outwards. After leveling, the extended end of the limiting plate 14 extends into the positioning sleeve 4 at the end of another inner mold assembly and fits against the top plate of the positioning sleeve 4.

[0099] Before the inner mold assemblies are spliced and leveled, the adjacent inner mold assemblies are arranged in a staggered height. The height difference is much larger than the deformation of the guide beam 1. Therefore, the adjacent two inner mold assemblies can easily abut against each other. After all the inner mold assemblies abut, the inner mold assembly at the lower position rises, and the inner mold assembly at the higher position descends. Through the limiting plate 14, the adjacent inner mold assemblies are in the same height position, compensating for the influence of the bending deformation of the guide beam 1 on the inner mold system and ensuring the positional accuracy of the inner hole of the box girder. And the inner mold system is arranged along the guide beam 1 and does not need to be directly placed on the steel reinforcement cage, so that the steel reinforcement cage is completely poured into the box girder.

[0100] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An integral hydraulic casting formwork, comprising a bottom formwork system, an inner formwork system, an outer formwork system and an end formwork system. Two of the outer formwork systems are arranged opposite to each other and mirror-image on both sides above the bottom formwork assembly. Two end formwork systems are respectively located at both ends of the bottom formwork system and are hermetically connected to the ends of the outer formwork system. The inner formwork system is located in the space formed by the bottom formwork system, the outer formwork system and the end formwork system, and is characterized in that, Further included are: A guiding beam (1) for positioning and assembling the internal mold system. The guiding beam (1) is arranged above the bottom mold assembly along the length direction of the bottom mold assembly. One end of the guiding beam (1) is fitted into one of the end mold systems, and the other end extends outwards through the other end mold system. The internal mold system includes a plurality of internal mold components arranged in an array along the length direction of the guiding beam (1). The internal mold components include: An internal template assembly. The internal template assembly is slidably sleeved on the guiding beam (1). The internal template assembly includes two sets of internally template mechanisms arranged in opposite mirror images. The internally template mechanism includes an upper internal template (2) and a lower internal template (3). One end of the upper internal template (2) is hinged to the end of the lower internal template (3), and the ends of the upper internal templates (2) of the two internally template mechanisms away from the lower internal templates (3) overlap each other. A support assembly for controlling the opening and closing of the internally template mechanism. A plurality of support assemblies are arranged along the length direction of the internal mold component. The support assembly includes a positioning sleeve (4) and a support mechanism. The positioning sleeve (4) is slidably sleeved on the guiding beam (1), and the two support mechanisms are respectively located on both sides of the positioning sleeve (4). The support mechanism includes: A support hydraulic cylinder (25). The support hydraulic cylinder (25) is arranged horizontally. The fixed part of the support hydraulic cylinder (25) is fixedly arranged on the side surface of the positioning sleeve (4), and the end of the telescopic part of the support hydraulic cylinder (25) is hinged to the hinge joint of the upper internal template (2) and the lower internal template (3). A sliding sleeve (5). The sliding sleeve (5) is slidably sleeved on the telescopic part of the support hydraulic cylinder (25), and the sliding sleeve (5) moves synchronously and in the opposite direction to the telescopic part of the support hydraulic cylinder (25). An upper connecting rod (6). Both ends of the upper connecting rod (6) are respectively hinged to the sliding sleeve (5) and the end of the upper internal template (2) away from the lower internal template (3). A lower connecting rod (7). Both ends of the lower connecting rod (7) are respectively hinged to the sliding sleeve (5) and the end of the lower internal template (3) away from the upper internal template (2). A linkage mechanism for enabling the sliding sleeve (5) to move synchronously and in the opposite direction to the telescopic part of the support hydraulic cylinder (25). Among them, the linkage mechanism includes: A positioning plate (8). The positioning plate (8) is fixedly arranged on the side surface of the fixed part of the support hydraulic cylinder (25). A linkage gear (9). The linkage gear (9) is rotatably arranged on the positioning plate (8). A first linkage rack (10). The first linkage rack (10) is arranged along the telescopic direction of the telescopic part of the support hydraulic cylinder (25) and is fixedly arranged at the front part of the telescopic part of the support hydraulic cylinder (25). The first linkage rack (10) meshes with the linkage gear (9). A second linkage rack (11). The second linkage rack (11) is arranged along the sliding direction of the sliding sleeve (5) and is fixedly arranged on the sliding sleeve (5). The second linkage rack (11) meshes with the linkage gear (9).

2. The integral hydraulic casting formwork according to claim 1, wherein: The internal mold system further includes a leveling component for enabling all internal mold components to be at the same height position. The leveling component includes: Leveling cylinders (12), the number of the leveling cylinders (12) is equal to that of the positioning sleeves (4) and they are arranged in one-to-one correspondence. The leveling cylinders (12) are vertically arranged in the upper part of the positioning sleeves (4). The fixed parts of the leveling cylinders (12) are fixedly arranged on the top surfaces of the positioning sleeves (4), and the telescopic parts of the leveling cylinders (12) extend vertically downward and face the guide beam (1). Traveling wheels (13), the traveling wheels (13) are rotatably arranged at the ends of the telescopic parts of the leveling cylinders (12), and the traveling wheels (13) roll and fit on the upper surface of the guide beam (1).

3. The integral hydraulic casting form according to claim 2, wherein: The leveling cylinders (12) of two adjacent inner mold assemblies synchronously extend and retract in opposite directions. Among them, the leveling cylinders (12) of one inner mold assembly are in a contracted state before leveling, and the leveling cylinders (12) of the other inner mold assembly are in an extended state initially before leveling. The leveling assembly further includes: Limiting plates (14), the two limiting plates (14) are respectively arranged at both ends of the inner mold assembly where the leveling cylinders (12) are in a contracted state before leveling. One end of the limiting plate (14) is fixedly arranged on the positioning sleeve (4) at the end of the inner mold assembly, and the other end extends horizontally outward. After leveling, the extended end of the limiting plate (14) extends into the positioning sleeve (4) at the end of the other inner mold assembly and fits against the top plate of the positioning sleeve (4).

4. The integral hydraulic casting form according to claim 2, wherein: A limiting groove is arranged along the length direction of the upper surface of the guide beam (1), and the traveling wheels (13) are rotatably arranged in the limiting groove.

5. The integral hydraulic casting form according to claim 1, characterized in that: The bottom mold system includes: A pedestal (15), the pedestal (15) is made of concrete; A bottom formwork (16), the bottom formwork (16) is horizontally laid above the pedestal (15); Brackets (17), the brackets (17) are located between the pedestal (15) and the bottom formwork (16), and multiple brackets (17) are arranged in an equidistant array; A height adjustment mechanism, which is used to make the upper surfaces of all the brackets (17) be at the same horizontal height, and the height adjustment mechanism is located at both ends of the brackets (17).

6. The integral hydraulic casting form according to claim 1, wherein: The outer mold system includes: An outer formwork (18); An installation frame (19), which is used to fix the outer formwork (18); An adjustment assembly, which is used to adjust the lateral position and height position of the installation frame (19); Guide rails (21), the guide rails (21) are arranged along the length direction of the bottom mold system; A traveling assembly (20), which is used to drive the installation frame (19) to move along the guide rails (21).

7. The integral hydraulic casting form according to claim 6, wherein: The end mold system includes: An end formwork (22); A traveling vehicle (23), which is used to drive the end formwork (22) to move along the guide rails (21), and the end formwork (22) is installed at one end of the traveling vehicle (23) facing the outer mold system; A pressing cylinder (24), which is used to press the end formwork (22) against the outer mold system, and the pressing cylinder (24) is arranged at one end of the traveling vehicle (23) away from the outer mold system.

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