Mould assembly and method for prefabricating caissons

Abstract

The present invention relates to the technical field of caisson molds, and in particular to a mold assembly and method for prefabricating caissons, wherein the inner mold is installed on the first section of the caisson, the inner mold can slide on the inner surface of the first section of the caisson, the inner mold can move synchronously with the first section of the caisson, the top of the outer mold is fixedly connected with a connecting disk, the inner side of the connecting disk is rotatably connected with a rotating ball, the side of the rotating ball away from the outer mold is fixedly connected with a power rod, and the side of the rotating ball close to the inner mold is fixedly connected with a telescopic rod, four frame plates are evenly arranged on the outer mold, and the inner side of the frame plates is slidably connected with a baffle. When the power rod is tilted, the two baffles on the side perpendicular to the tilting direction can move toward the inner mold, so as to partition and close the casting space between the outer mold and the inner mold, so that the concrete cast by the casting pipe stays on one side of the casting space, so that the gravity on the casting side is increased, and under the action of gravity, the inner mold and the first section of the caisson are compensated to the opposite side of the tilt, so as to realize automatic and timely leveling of the inner mold and the first section of the caisson.

Description

Technical Field

[0001] The invention relates to the technical field of caisson moulds, in particular to a mould assembly and a method for prefabricating a caisson. Background Art

[0002] The caisson structure is a giant reinforced concrete hollow box with a bottom. There are round caissons and square caissons. During the construction process, after the site preparation is completed, the caisson is often divided into multiple sections and the templates are installed and used in a cycle, such as Figure 1 As shown, the first section caisson 2 is manufactured on the surface of the site 1. After the first section caisson 2 is constructed through the formwork, the soil at the bottom of the first section caisson 2 is excavated to make the first section caisson 2 sink under the action of gravity, and then the second section caisson is constructed through the formwork again;

[0003] During subsequent construction, the inner formwork 5 lacks the support of the site 1, and the outer formwork 4 is set on the ring beam 3 of the processed site 1. During the construction process using the inner formwork 5 and the outer formwork 4, the first section caisson 2 is in a relatively balanced state, and the verticality of the inner formwork 5 needs to be maintained, and the vertical positive and negative deviations of the inner formwork 5 need to be controlled within a reasonable range.

[0004] In the prior art, the verticality of the inner mold 5 is monitored by arranging plumb bobs around the inner mold, which has low accuracy and is not convenient for timely adjustment of the inner mold 5, which can easily lead to an increase in the tilt of the inner mold 5.

[0005] Therefore, in order to solve the above problems, a mold assembly and method for prefabricating a caisson are proposed. Summary of the invention

[0006] The object of the present invention is to provide a mold assembly and method for prefabricated caissons to solve the problem raised in the above background technology that "the monitoring of the verticality of the inner mold in the prior art is achieved by setting plumb bobs around the inner mold, which has low accuracy and is not convenient for timely adjustment of the inner mold, which easily leads to increased inclination of the inner mold."

[0007] To achieve the above object, the present invention provides the following technical solution: a mold assembly for prefabricating a caisson, comprising an inner mold, an outer mold installed on a ring beam, and a bottom plate, wherein the inner mold is installed on the first section of the caisson, the inner mold can slide on the inner surface of the first section of the caisson, and the inner mold can move synchronously with the first section of the caisson;

[0008] The top of the outer mold is fixedly connected with a connecting disk, and the inner side of the connecting disk is rotatably connected with a rotating ball, the side of the rotating ball away from the outer mold is fixedly connected with a power rod, and the side of the rotating ball close to the inner mold is fixedly connected with a telescopic rod, and the telescopic rod is used to play a role of distance compensation, one end of the telescopic rod is fixedly connected with a connecting piece, the top of the inner mold is fixedly connected with a fixing rod, and the inner side of the fixing rod is slidably connected with an insertion rod, and the inner side of the fixing rod can be slidably connected to the bottom end of the connecting piece, and the connecting piece and the fixing rod can be connected or separated by plugging and pulling the insertion rod. After the connecting piece is separated from the fixing rod, the inner mold and the outer mold can be disassembled. After the connecting piece is connected to the fixing rod, a lever mechanism is formed on both sides of the rotating ball. When the inner mold is slightly tilted, it can drive the power rod to tilt more to one side, thereby realizing the function of monitoring and observation;

[0009] Four frame plates are evenly arranged on the outer mold, and the four frame plates are respectively arranged at the front, rear, left and right positions of the outer mold. The inner side of the frame plate is slidably connected with a baffle. When the power rod is tilted, the two baffles on the side perpendicular to the tilting direction can move toward the inner mold, so as to partition and close the casting space between the outer mold and the inner mold, so that the concrete cast by the casting pipe stays on one side of the casting space, and the gravity on the casting side is increased. Under the action of gravity, the inner mold and the first caisson are compensated to the opposite side of the tilt, so as to realize automatic and timely leveling of the inner mold and the first caisson.

[0010] Under the above settings, the present invention installs the inner mold on the first section caisson, the inner mold can slide on the inner surface of the first section caisson, the inner mold can move synchronously with the first section caisson, and the inclination of the inner mold can synchronously reflect the inclination state of the first section caisson. In the process of correcting the inner mold, the correction of the first section caisson can also be completed at the same time. After the correction is completed, the height of the inner mold needs to be re-calibrated so that its top end is flush with the top end of the outer mold;

[0011] The present invention uses the rotating ball at the center of the connecting disk on the top of the fixed outer mold as a fulcrum. When the inner mold tilts, the slight change of the inner mold can be magnified by the lever mechanism where the rotating ball is located, which plays a role in facilitating observation. At the same time, the deformation caused by the slight tilt change of the inner mold and the first caisson can be used as the source power to tilt the power rod, and the two baffles on the vertical side of the tilt direction of the inner mold can be moved toward the inner mold, so that the casting space between the outer mold and the inner mold is partitioned and closed, so that the concrete cast by the casting pipe can stay in one side of the casting space in a short time, so that the gravity on the casting side is increased. Under the action of gravity, the inner mold and the first caisson are compensated to the opposite side of the tilt, so that the inner mold and the first caisson are automatically and timely leveled. This leveling method is simple and efficient, can effectively avoid leveling delays, and is convenient for the inner mold to make timely adjustments to avoid aggravating the tilt of the inner mold.

[0012] As a preferred mold assembly for prefabricated caissons of the present invention, a plurality of connecting blocks are anchored on the inner side of the first section caisson, the inner side of the connecting blocks is spirally connected with a screw rod, the top end of the screw rod is rotatably connected with a connecting rod, the outer side of the connecting rod is fixedly connected to the inner side of the inner mold, and the height position of the inner mold can be adjusted by rotating the screw rod.

[0013] Under the above setting, the synchronous movement of the first section caisson and the inner mold can be achieved, because as the first section caisson continues to sink, in order to make the inner mold flush with the outer mold, the screw rod can be selected as a screw rod that can be connected and extended to achieve the change of the upward and downward sliding stroke of the inner mold, or, as the first section caisson continues to sink, the anchoring position of the connecting block is changed, so that the connecting block is changed upward, so that the inner mold can be flush with the outer mold;

[0014] As a preferred mold assembly for prefabricated caissons of the present invention, a second hydraulic rod is fixedly connected to the inner side of one end of the frame plate, and a movable end of the second hydraulic rod is fixedly connected to one side of the baffle plate. The movement of the baffle plate in the frame plate is achieved by extending the second hydraulic rod, and an empty groove is opened on the inner side of the baffle plate, and the empty groove is used to avoid the steel bars in the casting space.

[0015] As a preferred mold assembly for prefabricated caissons of the present invention, the inner side of the top end of the empty slot is rotatably connected with a rotating plate through a hinge, and the weight of the rotating plate is mainly distributed at the bottom end. The rotating plate can slide over the steel bars to make the baffle nearly complete, reduce the permeability of the baffle, and make a more obvious weight difference appear on both sides of the template, thereby facilitating leveling.

[0016] As a preferred mold assembly for prefabricated caissons of the present invention, the top of the base plate is fixedly connected to a support column, the top of the support column is fixedly connected to a cylinder, the cylinder is arranged on the outside of the power rod, and in an initial state, the power rod is in the center of the cylinder, and the rotating ball, the fixed rod and the power rod are in the same plane.

[0017] As a preferred mold assembly for prefabricated caissons of the present invention, the top, bottom, front and rear of the cylinder are fixedly connected with a first hydraulic rod, the first hydraulic rod includes an outer cylinder, the inner side of the outer cylinder is slidably connected with a piston, one end of the piston is fixedly connected with an inner rod, one end of the inner rod faces the inner side of the cylinder, one end of the inner rod is fixedly connected with a resistance plate, the resistance plate is arranged on the outer side of the power rod, when the power rod is tilted, it can drive the corresponding resistance plate to move toward the outer side of the cylinder, a spring is arranged on the inner side of the outer cylinder, the two ends of the spring are respectively fixedly connected to one end of the piston and the inner side of one end of the outer cylinder, and the spring is used to realize the resetting of the piston.

[0018] As a preferred mold assembly for prefabricated caissons of the present invention, each of the outer cylinders is provided with two outlets on a side away from the cylinder, each outlet is connected to a soft oil pipe, and the other ends of the two soft oil pipes are respectively connected to the two second hydraulic rod inlets corresponding to the first hydraulic rod at that location, and the inner wall diameter of the outer cylinder is larger than the inner wall diameter of the second hydraulic rod. This arrangement is to convert the shorter stroke of the outer cylinder into a longer stroke of the second hydraulic rod, so that the baffle can separate the casting space, and the power rod can use a metal part with a certain elastic rebound function to prevent the power rod from rigid deformation.

[0019] As a preferred mold assembly for prefabricated caissons of the present invention, when the resistance plate at the upper or lower position is squeezed, the second hydraulic rods on the front and rear sides can be extended through the soft oil pipe. At this time, the casting space is divided into two left and right parts, and leveling is achieved by casting into the casting space on one side.

[0020] As a preferred mold assembly for prefabricated caissons of the present invention, when the resistance plate at the front or rear position is squeezed, the second hydraulic rods on the left and right sides can be extended through the soft oil pipe. At this time, the casting space is divided into two front and rear parts, and leveling is achieved by casting into the casting space on one side.

[0021] The method for using the mold assembly for prefabricating a caisson comprises the following steps:

[0022] Step 1: After the first section of the caisson is sunk, first complete the installation of the inner mold and install the inner mold on the first section of the caisson;

[0023] Step 2: Move the inner mold upward to form a casting space for the second section caisson between the inner mold and the outer mold;

[0024] Step 3: Use the pouring pipe to pour the pouring space. During the pouring process, always observe the inclination of the power rod and judge and analyze the verticality of the inner mold;

[0025] Step 4: When the power rod tilts to one side, due to the existence of the rotating ball, it indicates that the fixed rod side of the inner mold tilts to the opposite side of the power rod, and the outlet position of the pouring pipe is moved to the higher position side of the inner mold;

[0026] Step 5: The power rod will contact the contact plate on the corresponding side, causing the corresponding second hydraulic rod to extend. At this time, the pouring space is divided into two parts, left and right, and leveling is achieved by pouring into the pouring space on one side.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The mold assembly for prefabricated caissons can connect or separate the connecting piece and the fixed rod by plugging and pulling out the plug rod. After the connecting piece is separated from the fixed rod, the inner mold and the outer mold can be disassembled. After the connecting piece is connected to the fixed rod, a lever mechanism is formed on both sides of the rotating ball. When the inner mold is slightly tilted, it can drive the power rod to tilt more to one side, thereby realizing the function of monitoring and observation.

[0029] 2. The mold assembly for prefabricated caissons has four frame plates evenly arranged on the outer mold, and the inner side of the frame plates is slidably connected with a baffle. When the power rod is tilted, the two baffles on the side perpendicular to the tilting direction can move toward the inner mold, partitioning and closing the casting space between the outer mold and the inner mold, so that the concrete cast by the casting pipe stays on one side of the casting space, increasing the gravity on the casting side, and under the action of gravity, the inner mold and the first caisson are compensated to the opposite side of the tilt, thereby realizing automatic and timely leveling of the inner mold and the first caisson.

[0030] 3. The mold assembly for prefabricating caissons of the present invention installs the inner mold on the first section caisson. The inner mold can slide on the inner surface of the first section caisson. The inner mold can move synchronously with the first section caisson. The inclination of the inner mold can synchronously reflect the inclination state of the first section caisson. In the process of correcting the inner mold, the correction of the first section caisson can also be completed at the same time.

[0031] 4. The mold assembly for prefabricated caissons of the present invention uses the rotating ball at the center of the connecting plate on the top of the fixed outer mold as a fulcrum. When the inner mold is tilted, the slight change of the inner mold can be amplified by the lever mechanism where the rotating ball is located, which is convenient for observation. At the same time, the deformation caused by the slight change of the inner mold and the first caisson can be used as the source power to tilt the power rod, and the two baffles on the vertical side of the inner mold tilting direction can be moved toward the inner mold, so that the casting space between the outer mold and the inner mold is partitioned and closed, so that the concrete poured by the pouring pipe can stay in one side of the casting space for a short time, so that the gravity on the casting side is increased. Under the action of gravity, the inner mold and the first caisson are compensated to the opposite side of the tilt, so as to realize automatic and timely leveling of the inner mold and the first caisson. This leveling method is simple and efficient, can effectively avoid leveling delays, and is convenient for timely adjustment of the inner mold to avoid aggravating the tilt of the inner mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the existing caisson construction structure;

[0033] Figure 2 It is a schematic diagram of the support adjustment structure of the inner mold of the present invention;

[0034] Figure 3 It is a schematic diagram of the overall installation structure of the present invention;

[0035] Figure 4This is a schematic diagram of the appearance structure of the connection disk of the present invention;

[0036] Figure 5 It is a schematic diagram of the cross-sectional installation structure inside the cylinder of the present invention;

[0037] Figure 6 It is a schematic diagram of the installation structure from the side view at the cylinder;

[0038] Figure 7 It is a schematic diagram of the installation structure inside the first hydraulic rod of the present invention;

[0039] Figure 8 It is a schematic diagram of the installation structure of the connecting piece of the present invention;

[0040] Fig. 9 It is a schematic diagram of the connection relationship between the first hydraulic rod and the second hydraulic rod at the upper or lower position of the present invention;

[0041] Fig.10 It is a schematic diagram of the connection relationship between the first hydraulic rod and the second hydraulic rod in the front or rear position of the present invention;

[0042] Fig.11 For the present invention Fig. 9 Schematic diagram of the installation structure at A in FIG.

[0043] Fig.12 It is a schematic diagram of the installation structure of the second hydraulic rod of the present invention;

[0044] Fig.13 It is a schematic diagram of the installation structure of the baffle of the present invention.

[0045] In the figure: 1. Site; 2. First section caisson; 3. Ring beam; 4. External formwork; 5. Internal formwork; 6. Casting pipe; 7. Connecting rod; 8. Screw rod; 9. Connecting block;

[0046] 10. Bottom plate; 11. Support column; 12. Cylinder; 13. First hydraulic rod; 14. Soft oil pipe; 15. Connecting plate; 16. Frame plate; 17. Second hydraulic rod; 18. Power rod; 19. Turning ball; 20. Connecting piece; 21. Inserting rod; 22. Telescopic rod; 23. Fixed rod; 24. Contact plate; 25. Baffle; 26. Empty slot; 27. Turning plate; 28. Reinforcement;

[0047] 131. Outer cylinder; 132. Inner rod; 133. Piston; 134. Spring. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] For examples, see Figure 1-Figure 13 The present invention provides a technical solution: a mold assembly for prefabricating a caisson, comprising an inner mold 5, an outer mold 4 installed on a ring beam 3, and a bottom plate 10, wherein the ring beam 3 is arranged on a site 1, the inner mold 5 is installed on a first section caisson 2, the inner mold 5 can slide on the inner surface of the first section caisson 2, and the inner mold 5 can move synchronously with the first section caisson 2;

[0050] The top of the outer mold 4 is fixedly connected with a connecting disk 15, and the inner side of the connecting disk 15 is rotatably connected with a rotating ball 19. The side of the rotating ball 19 away from the outer mold 4 is fixedly connected with a power rod 18, and the side of the rotating ball 19 close to the inner mold 5 is fixedly connected with a telescopic rod 22, and one end of the telescopic rod 22 is fixedly connected with a connecting piece 20, and the top of the inner mold 5 is fixedly connected with a fixing rod 23, and the inner side of the fixing rod 23 is slidably connected with an insert rod 21. The inner side of the fixing rod 23 can be slidably connected with the bottom end of the connecting piece 20, and the connecting piece 20 and the fixing rod 23 can be connected or separated by plugging and pulling the insert rod 21. After the connecting piece 20 is separated from the fixing rod 23, the inner mold 5 and the outer mold 4 can be disassembled. After the connecting piece 20 is connected to the fixing rod 23, a lever mechanism is formed on both sides of the rotating ball 19. When the inner mold 5 is slightly tilted, it can drive the power rod 18 to tilt more to one side, thereby realizing the function of monitoring and observation;

[0051] Four frame plates 16 are evenly arranged on the outer mold 4, and the four frame plates 16 are respectively arranged at the front, rear, left and right positions of the outer mold 4. The inner side of the frame plate 16 is slidably connected with a baffle 25. When the power rod 18 is tilted, the two baffles 25 on the side perpendicular to the tilting direction can move toward the inner mold 5, and the casting space between the outer mold 4 and the inner mold 5 is partitioned and closed, so that the concrete cast by the casting pipe 6 stays on one side of the casting space, so that the gravity on the casting side is increased. Under the action of gravity, the inner mold 5 and the first caisson 2 are compensated to the opposite side of the tilt, thereby realizing automatic and timely leveling of the inner mold 5 and the first caisson 2.

[0052] Under the above setting, the present invention installs the inner mold 5 on the first section caisson 2, the inner mold 5 can slide on the inner surface of the first section caisson 2, the inner mold 5 can move synchronously with the first section caisson 2, and the inclination of the inner mold 5 can synchronously reflect the inclination state of the first section caisson 2. In the process of correcting the inner mold 5, the correction of the first section caisson 2 can also be completed at the same time. After the correction is completed, the height of the inner mold 5 needs to be re-calibrated so that its top is flush with the top of the outer mold 4;

[0053] The present invention uses the rotating ball 19 at the center of the connecting plate 15 on the top of the fixed outer mold 4 as a fulcrum. When the inner mold 5 is tilted, the slight change of the inner mold 5 can be magnified by the lever mechanism where the rotating ball 19 is located, which plays a role in facilitating observation. At the same time, the deformation caused by the slight change of the inner mold 5 and the first caisson 2 can be used as the source power to tilt the power rod 18, so that the two baffles 25 on the vertical side of the tilting direction of the inner mold 5 can move toward the inner mold 5, and the casting space between the outer mold 4 and the inner mold 5 is partitioned and closed, so that the concrete cast by the casting pipe 6 can stay in one side of the casting space for a short time, so that the gravity on the casting side is increased. Under the action of gravity, the inner mold 5 and the first caisson 2 are compensated to the opposite side of the tilt, so that the inner mold 5 and the first caisson 2 are automatically and timely leveled. This leveling method is simple and efficient, can effectively avoid leveling delays, and is convenient for the inner mold to make timely adjustments to avoid aggravating the tilt of the inner mold.

[0054] Specifically, a plurality of connecting blocks 9 are anchored on the inner side of the first section caisson 2, a screw rod 8 is spirally connected to the inner side of the connecting block 9, a connecting rod 7 is rotatably connected to the top end of the screw rod 8, and the outer side of the connecting rod 7 is fixedly connected to the inner side of the inner mold 5, and the height position of the inner mold 5 can be adjusted by rotating the screw rod 8.

[0055] Under the above setting, the synchronous movement of the first section caisson 2 and the inner mold 5 can be achieved, because as the first section caisson 2 continues to sink, in order to make the inner mold 5 flush with the outer mold 4, the screw 8 can be selected as a screw that can be docked and extended to achieve the change of the upward and downward sliding stroke of the inner mold 5, or, as the first section caisson 2 continues to sink, the anchoring position of the connecting block 9 is changed, so that the connecting block 9 is changed upward, so that the inner mold 5 can be flush with the outer mold 4;

[0056] Specifically, a second hydraulic rod 17 is fixedly connected to the inner side of one end of the frame plate 16, and a movable end of the second hydraulic rod 17 is fixedly connected to one side of the baffle plate 25. The movement of the baffle plate 25 in the frame plate 16 is achieved by extending the second hydraulic rod 17. An empty groove 26 is opened on the inner side of the baffle plate 25, and the empty groove 26 is used to avoid the steel bars 28 in the casting space.

[0057] Specifically, the inner side of the top of the empty slot 26 is rotatably connected with a rotating plate 27 through a hinge. The weight of the rotating plate 27 is mainly distributed at the bottom. The rotating plate 27 can slide over the steel bar 28 to make the baffle 25 nearly complete, reduce the permeability of the baffle 25, and make a more obvious weight difference appear on both sides of the template, which is convenient for leveling.

[0058] Specifically, the top of the base plate 10 is fixedly connected to a support column 11, and the top of the support column 11 is fixedly connected to a cylinder 12. The cylinder 12 is arranged on the outside of the power rod 18. In the initial state, the power rod 18 is at the center of the cylinder 12, and the rotating ball 19, the fixed rod 23 and the power rod 18 are on the same plane.

[0059] Specifically, the top, bottom, front and rear of the cylinder 12 are fixedly connected with the first hydraulic rod 13, and the first hydraulic rod 13 includes an outer cylinder 131, and the inner side of the outer cylinder 131 is slidably connected with a piston 133, one end of the piston 133 is fixedly connected with an inner rod 132, and one end of the inner rod 132 faces the inner side of the cylinder 12, and one end of the inner rod 132 is fixedly connected with a contact plate 24, and the contact plate 24 is in an arc shape, and four contact plates 24 are connected end to end to form a circle, and the contact plate 24 is arranged on the outer side of the power rod 18. When the power rod 18 is tilted, it can drive the corresponding contact plate 24 to move toward the outer side of the cylinder 12, and a spring 134 is arranged on the inner side of the outer cylinder 131, and the two ends of the spring 134 are respectively fixedly connected with one end of the piston 133 and the inner side of one end of the outer cylinder 131, and the spring 134 is used to realize the resetting of the piston 133.

[0060] Specifically, the diameters of the resistance plate 24 and the power rod 18 can be increased. When the inner mold 5 tilts in the left front, left rear, right front and right rear directions, the power rod 18 can simultaneously drive the resistance plates 24 at the corresponding two positions to move, so as to close the four positions of the casting space, and then selectively cast for leveling.

[0061] Specifically, each outer cylinder 131 has two outlets on one side away from the cylinder 12, each outlet is connected to a soft oil pipe 14, and the other ends of the two soft oil pipes 14 are respectively connected to the inlets of the two second hydraulic rods 17 corresponding to the first hydraulic rod 13 at that location. The inner wall diameter of the outer cylinder 131 is larger than the inner wall diameter of the second hydraulic rod 17. This arrangement is to convert the shorter stroke of the outer cylinder 131 into a longer stroke of the second hydraulic rod 17, so that the baffle 25 can distinguish the casting space. The power rod 18 can use a metal part with a certain elastic rebound function to prevent the power rod 18 from rigid deformation.

[0062] Specifically, when the upper or lower resistance plate 24 is squeezed, the second hydraulic rods 17 on the front and rear sides can be extended through the soft oil pipe 14. At this time, the pouring space is divided into two left and right parts, and leveling is achieved by pouring into the pouring space on one side.

[0063] Specifically, when the resistance plate 24 at the front or rear position is squeezed, the second hydraulic rods 17 on the left and right sides can be extended through the soft oil pipe 14. At this time, the pouring space is divided into two front and rear spaces, and leveling is achieved by pouring into the pouring space on one side.

[0064] For example, when the left side of the inner mold 5 moves downward, the power rod 18 will tilt upward. At this time, the abutment plate 24 on the upper first hydraulic rod 13 is squeezed, and the baffles 25 on the front and rear sides move toward the inner mold 5 to close the casting space. At this time, it is also necessary to confirm whether the left side of the inner mold 5 moves downward due to the tilt of the inner mold 5 or the overall settlement of the inner mold 5. It can be measured and confirmed by a level ruler. If it is caused by the overall settlement of the inner mold 5, it is necessary to recalibrate the height of the inner mold 5 to reset the power rod 18. If it is caused by the tilt of the inner mold 5, pour into the casting space on the right side to achieve leveling. After the leveling is completed, the height of the inner mold 5 is recalibrated.

[0065] For example, when the front side of the inner mold 5 tilts downward, the power rod 18 tilts backward. At this time, the abutment plate 24 on the first hydraulic rod 13 at the rear side is squeezed, and the baffles 25 on the left and right sides move toward the inner mold 5 to close the pouring space. At this time, pouring is performed in the pouring space at the rear side to achieve leveling. After the leveling is completed, the height of the inner mold 5 is recalibrated.

[0066] For example, when the rear side of the inner mold 5 tilts downward, the power rod 18 tilts forward. At this time, the abutment plate 24 on the first hydraulic rod 13 on the front side is squeezed, and the baffles 25 on the left and right sides move toward the inner mold 5 to close the pouring space. At this time, pouring is performed toward the pouring space on the front side to achieve leveling. After the leveling is completed, the height of the inner mold 5 is recalibrated.

[0067] For example, when the right side of the inner mold 5 tilts downward, the power rod 18 tilts downward. At this time, the abutment plate 24 on the first hydraulic rod 13 at the lower side is squeezed, and the baffles 25 at the front and rear sides move toward the inner mold 5 to close the pouring space. At this time, pouring is performed toward the pouring space on the left side to achieve leveling. After the leveling is completed, the height of the inner mold 5 is recalibrated.

[0068] The present invention also discloses a method for using a mold assembly for prefabricating a caisson, the steps of which are:

[0069] Step 1: After the first section caisson 2 is sunk, first complete the installation of the inner mold 5, and install the inner mold 5 on the first section caisson 2;

[0070] Step 2: Move the inner mold 5 upward to form a casting space for the second section caisson between the inner mold 5 and the outer mold 4;

[0071] Step 3: Casting of the casting space is achieved through the casting pipe 6. During the casting process, the inclination of the power rod 18 is always observed to judge and analyze the verticality of the inner mold 5;

[0072] Step 4: When the power rod 18 tilts to one side, due to the existence of the rotating ball 19, it indicates that the fixed rod 23 of the inner mold 5 tilts to the opposite side of the power rod 18, and the outlet position of the pouring pipe 6 is moved to the higher position side of the inner mold 5;

[0073] Step 5: The power rod 18 will contact the contact plate 24 on the corresponding side, causing the corresponding second hydraulic rod 17 to extend. At this time, the pouring space is divided into two parts, left and right, and leveling is achieved by pouring into the pouring space on one side.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold assembly for prefabricating a caisson, comprising an inner mold (5), an outer mold (4) capable of being mounted on a ring beam (3), and a bottom plate (10), characterized in that: The inner mold (5) is installed on the first section caisson (2), the inner mold (5) can slide on the inner surface of the first section caisson (2), and the inner mold (5) can move synchronously with the first section caisson (2); The top of the outer mold (4) is fixedly connected to a connecting plate (15), the inner side of the connecting plate (15) is rotatably connected to a rotating ball (19), the side of the rotating ball (19) away from the outer mold (4) is fixedly connected to a power rod (18), the side of the rotating ball (19) close to the inner mold (5) is fixedly connected to a telescopic rod (22), one end of the telescopic rod (22) is fixedly connected to a connecting piece (20), the top of the inner mold (5) is fixedly connected to a fixing rod (23), the inner side of the fixing rod (23) is slidably connected to an insertion rod (21), the inner side of the fixing rod (23) can be slidably connected to the bottom end of the connecting piece (20), the connecting piece (20) and the fixing rod (23) can be connected or separated by plugging and unplugging the insertion rod (21), when the inner mold (5) is tilted, it can drive the power rod (18) to tilt to one side, so as to achieve the function of monitoring and observation; Four frame plates (16) are evenly arranged on the outer mold (4), and the four frame plates (16) are respectively arranged at the front, rear, left and right positions of the outer mold (4). The inner side of the frame plate (16) is slidably connected with a baffle plate (25). When the power rod (18) is tilted, the two baffle plates (25) on the side perpendicular to the tilting direction of the power rod (18) can move toward the inner mold (5), thereby partitioning and closing the pouring space between the outer mold (4) and the inner mold (5), so that the concrete poured by the pouring pipe (6) stays on one side of the pouring space, thereby increasing the gravity on the pouring side. Under the action of gravity, the inner mold (5) and the first section caisson (2) are compensated to the opposite side of the tilt, thereby realizing automatic and timely leveling of the inner mold (5) and the first section caisson (2); A plurality of connection blocks (9) are anchored on the inner side of the first section caisson (2); a screw rod (8) is spirally connected to the inner side of the connection block (9); a connection rod (7) is rotatably connected to the top end of the screw rod (8); the outer side of the connection rod (7) is fixedly connected to the inner side of the inner mold (5); and the height position of the inner mold (5) can be adjusted by rotating the screw rod (8); A second hydraulic rod (17) is fixedly connected to the inner side of one end of the frame plate (16); a movable end of the second hydraulic rod (17) is fixedly connected to one side of the baffle plate (25); the movement of the baffle plate (25) in the frame plate (16) is achieved by extending the second hydraulic rod (17); an empty groove (26) is provided on the inner side of the baffle plate (25); the empty groove (26) is used to avoid the steel bars (28) in the casting space.

2. The mold assembly for prefabricated caisson according to claim 1, characterized in that: A rotating plate (27) is rotatably connected to the inner side of the top end of the hollow groove (26) via a hinge, and the weight of the rotating plate (27) is distributed at the bottom end. The rotating plate (27) can slide over the steel bars (28) to make the blocking surface of the baffle (25) close to complete, thereby reducing the permeability of the baffle (25).

3. The mold assembly for prefabricated caisson according to claim 2, characterized in that: The top end of the bottom plate (10) is fixedly connected to a support column (11), the top end of the support column (11) is fixedly connected to a cylinder (12), the cylinder (12) is arranged outside a power rod (18), and in an initial state, the power rod (18) is located at the center of the cylinder (12), and the rotating ball (19), the fixed rod (23) and the power rod (18) are located on the same plane.

4. The mold assembly for prefabricated caisson according to claim 3, characterized in that: The cylinder (12) is fixedly connected with a first hydraulic rod (13) at the top, bottom, front and rear. The first hydraulic rod (13) comprises an outer cylinder (131). A piston (133) is slidably connected to the inner side of the outer cylinder (131). One end of the piston (133) is fixedly connected to an inner rod (132). One end of the inner rod (132) faces the inner side of the cylinder (12). One end of the inner rod (132) is fixedly connected to a contact plate (24). The contact plate (24) is arranged on the outer side of the power rod (18). When the power rod (18) tilts, it can drive the corresponding contact plate (24) to move toward the outer side of the cylinder (12). A spring (134) is arranged on the inner side of the outer cylinder (131). Two ends of the spring (134) are respectively fixedly connected to one end of the piston (133) and the inner side of one end of the outer cylinder (131).

5. The mold assembly for prefabricated caisson according to claim 4, characterized in that: Each of the outer cylinders (131) has two outlets on a side away from the cylinder (12), each outlet being connected to a soft oil pipe (14), the other ends of the two soft oil pipes (14) being respectively connected to the inlets of two second hydraulic rods (17) corresponding to the first hydraulic rod (13), and the inner wall diameter of the outer cylinder (131) being larger than the inner wall diameter of the second hydraulic rod (17).

6. The mold assembly for prefabricated caisson according to claim 5, characterized in that: When the upper or lower contact plate (24) is squeezed, the second hydraulic rods (17) on the front and rear sides can be extended through the soft oil pipe (14). At this time, the pouring space is divided into two left and right parts, and leveling is achieved by pouring into the pouring space on one side.

7. The mold assembly for prefabricated caisson according to claim 6, characterized in that: When the resistance plate (24) at the front or rear position is squeezed, the second hydraulic rods (17) on the left and right sides can be extended through the soft oil pipe (14). At this time, the pouring space is divided into two front and rear parts, and leveling is achieved by pouring into the pouring space on one side.

8. A method for using a mold assembly for prefabricating a caisson, characterized in that: Using the mold assembly for prefabricating caissons as claimed in claim 7, the steps are: Step 1: After the first section caisson (2) is sunk, firstly the inner mold (5) is installed, and the inner mold (5) is installed on the first section caisson (2); Step 2: the inner mold (5) is moved upward to form a casting space for the second section caisson between the inner mold (5) and the outer mold (4); Step 3: Casting the casting space through the casting pipe (6). During the casting process, the inclination of the power rod (18) is constantly observed to judge and analyze the verticality of the inner mold (5); Step 4: When the power rod (18) tilts to one side, due to the presence of the rotating ball (19), it is indicated that the fixed rod (23) of the inner mold (5) tilts to the opposite side of the power rod (18), and the outlet position of the pouring pipe (6) is moved to the high side of the tilting direction of the inner mold (5); Step 5: The power rod (18) will contact the contact plate (24) on the corresponding side, causing the corresponding second hydraulic rod (17) to extend. At this time, the pouring space is divided into two parts, left and right, and leveling is achieved by pouring into the pouring space on one side.

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