Efficient quick-release cast-in-place box girder inner mold

Abstract

The utility model relates to the technical field of box girder internal molds, and discloses an efficient quick-disassembly type cast-in-place box girder internal mold which comprises a first mold assembly, two second mold assemblies and a disassembly and assembly mold assembly, the two second mold assemblies are rotationally connected with the first mold assembly, the disassembly and assembly mold assembly is movably installed in the first mold assembly, and the two second mold assemblies are rotationally connected with the first mold assembly. The disassembly and assembly mold assembly is connected with the two second mold assemblies and drives the two second mold assemblies to rotate; according to the utility model, through the arrangement of the first mold assembly, the second mold assembly and the disassembly and assembly mold assembly, a worker can disassemble and assemble the mold only by disassembling and assembling two bolts, so that the construction steps are simplified to a greater extent.

Description

Technical Field

[0001] The utility model relates to the technical field of box girder internal molds, and more specifically to an efficient quick-disassembly cast-in-place box girder internal mold. Background Technique

[0002] A box girder is a type of beam in bridge engineering. It is hollow inside and has flanges on both sides of the upper part, resembling a box, hence the name. The box girder internal mold is a special mold used for forming the hollow part inside the box girder.

[0003] Currently, most existing box girder internal molds are two-part types, consisting of a left mold and a right mold. When disassembling, the left mold and the right mold need to be disassembled separately, and when used next time, the left mold and the right mold need to be fixed separately and then spliced together. The construction steps are relatively cumbersome. Therefore, there is an urgent need to design an efficient quick-disassembly cast-in-place box girder internal mold to solve the above problems. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an efficient quick-disassembly cast-in-place box girder internal mold to solve the problem that when disassembling the two-part box girder internal mold in the above-mentioned background technique, the left mold and the right mold need to be disassembled separately, and when installing, the left mold and the right mold need to be fixed separately and then spliced together, and the construction steps are relatively cumbersome.

[0005] The utility model provides the following technical solution: An efficient quick-disassembly cast-in-place box girder internal mold includes a first mold assembly, and also includes two second mold assemblies and a disassembly and assembly mold assembly. Both second mold assemblies are rotatably connected to the first mold assembly. The disassembly and assembly mold assembly is movably installed in the first mold assembly, and the disassembly and assembly mold assembly is connected to the two second mold assemblies and drives the two second mold assemblies to rotate.

[0006] Further, the first mold assembly includes a first mold body, the second mold assembly includes a second mold body, and the second mold body is rotatably installed on the top of the first mold body.

[0007] Further, the second mold assembly further includes two driven parts, and both driven parts are fixedly installed at the bottom of the second mold body.

[0008] Further, the driven part includes two first fixing pieces, a rotating sleeve, and a limiting groove. Both first fixing pieces are fixedly installed at the bottom of the second mold body. The rotating sleeve is rotatably installed between the two first fixing pieces, and the limiting groove is opened between the top and the bottom of the rotating sleeve.

[0009] Further, the disassembly and assembly mold assembly includes a disassembly and assembly mold body and four driving parts, and the four driving parts are respectively fixedly installed at both ends of the disassembly and assembly mold body.

[0010] Furthermore, the active part includes two second fixing pieces, a rotating plate, a telescopic plate, and two limiting strips. Both of the two second fixing pieces are fixedly installed at one end of the disassembly and assembly mold body. The rotating plate is rotatably installed between the two second fixing pieces. The telescopic plate is fixedly installed at one end of the rotating plate and is adapted to the rotating sleeve. The two limiting strips are respectively fixedly installed at the top and bottom of the telescopic plate, and the limiting strips are adapted to the limiting grooves.

[0011] Furthermore, the disassembly and assembly mold assembly further includes three first fixing blocks, three rotating rods, three second fixing blocks, and a sliding plate. The three first fixing blocks are all fixedly installed at the bottom of the disassembly and assembly mold body. The three rotating rods are respectively rotatably installed in the three first fixing blocks. The three second fixing blocks are respectively rotatably installed outside the three rotating rods. The sliding plate is fixedly installed between the bottoms of the three second fixing blocks. The first mold assembly further includes a sliding groove, which is arranged on the inner wall of the bottom of the first mold body. The sliding plate is slidably installed in the sliding groove.

[0012] Furthermore, the disassembly and assembly mold assembly further includes a strip-shaped plate, two bolts, and a pull ring. The strip-shaped plate is fixedly installed on the front side of the sliding plate. The two bolts are both movably installed in the strip-shaped plate through threads. The pull ring is fixedly installed on the front side of one of the second fixing blocks. The first mold assembly further includes two threaded holes and a limiting plate. The two threaded holes are both opened on the inner wall of the bottom of the sliding groove. The limiting plate is fixedly installed in the sliding groove. The bolts are adapted to the threaded holes, and the limiting plate is in contact with the rear side of the sliding plate.

[0013] Furthermore, the first mold assembly further includes four support rods, and the four support rods are all fixedly installed on the inner wall of the bottom of the first mold body. The disassembly and assembly mold assembly further includes four support sleeves, and the four support sleeves are all fixedly installed at the bottom of the disassembly and assembly mold body. The four support sleeves are respectively slidably sleeved outside the four support rods.

[0014] The technical effects and advantages of the present utility model:

[0015] In the present utility model, when disassembling, the staff enters the first die body, removes two bolts from the two threaded holes, and hooks the winch cable onto the pull ring. After the staff leaves the first die body, the winch is started. At this time, due to the frictional force between the box girder and the first die body and the two second die bodies, the first die body and the two second die bodies will not be pulled and slide, while the sliding plate will be pulled and slide in the chute, driving the three second fixing blocks to slide. At this time, the three rotating rods will rotate in the three second fixing blocks and become inclined, generating a pulling force on the three first fixing blocks, thereby pulling the disassembly and assembly die body to slide downward. The downward sliding of the disassembly and assembly die body will drive the four rotating plates to rotate while sliding downward, and then drive the four telescopic plates to slide out of the four rotating sleeves. When the telescopic plate slides out to a certain distance, the limiting strip slides to contact the limiting groove, and the telescopic plate will not continue to slide outward. At this time, when the disassembly and assembly die body continues to slide downward, it will pull the four rotating sleeves to slide downward, and then pull the two second die bodies to rotate downward. When the two second die bodies are pulled and rotated downward, the frictional force between the two second die bodies and the box girder will disappear. At this time, the frictional force between the first die body and the box girder is not sufficient to prevent the first die body from sliding under the pulling of the winch. Continuing to pull the sliding plate, the first die body and the two second die bodies can be pulled out of the box girder. After being completely pulled out, the disassembly and assembly die body is connected to the crane. During the hoisting process, the disassembly and assembly die body will be pulled upward and reset. After being hoisted to the next construction position, the staff enters the first die body again and installs two bolts to complete the installation. By setting the first die assembly, the second die assembly, and the disassembly and assembly die assembly, the staff only needs to disassemble and install two bolts to disassemble and install the mold, greatly simplifying the construction steps. Description of the Drawings

[0016] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Schematic diagram of the structure of the first die assembly of the present utility model;

[0018] Figure 3 Schematic diagram of the structure of the second die assembly of the present utility model;

[0019] Figure 4 Schematic diagram of the structure of the disassembly and assembly die assembly of the present utility model;

[0020] Figure 5 Schematic diagram of the structure of the strip plate of the present utility model;

[0021] Figure 6 Schematic diagram of the structure of the limiting strip of the present utility model.

[0022] The reference numerals are: 1, the first die assembly; 101, the first die body; 102, the chute; 103, the threaded hole; 104, the limiting plate; 105, the support rod; 2, the second die assembly; 201, the second die body; 202, the first fixing piece; 203, the rotating sleeve; 204, the limiting groove; 3, the disassembly and assembly die assembly; 301, the disassembly and assembly die body; 302, the second fixing piece; 303, the rotating plate; 304, the telescopic plate; 305, the first fixing block; 306, the rotating rod; 307, the second fixing block; 308, the sliding plate; 309, the support sleeve; 310, the strip plate; 311, the bolt; 312, the pull ring; 313, the limiting strip. Detailed implementation manners

[0023] The present utility model will be further described below in conjunction with specific embodiments. However, those skilled in the art should understand that the detailed description given here in conjunction with the accompanying drawings is for better explanation. The structure of the present utility model necessarily goes beyond these limited embodiments, and for some equivalent replacement schemes or common means, no detailed description will be given herein, but they still fall within the protection scope of the present application.

[0024] Figures 1 to 6 is the best embodiment of the present utility model. The following will Figures 1 to 6 further describe the present utility model.

[0025] An efficient quick-disassembly in-situ cast box girder internal mold includes a first die assembly 1, and also includes two second die assemblies 2 and a disassembly and assembly die assembly 3. The two second die assemblies 2 are both rotatably connected to the first die assembly 1. The disassembly and assembly die assembly 3 is movably installed in the first die assembly 1, and the disassembly and assembly die assembly 3 is connected to the two second die assemblies 2 and drives the two second die assemblies 2 to rotate;

[0026] The first die assembly 1 includes a first die body 101. The second die assembly 2 includes a second die body 201. The second die body 201 is rotatably installed on the top of the first die body 101;

[0027] The second die assembly 2 further includes two driven parts, and the two driven parts are both fixedly installed at the bottom of the second die body 201;

[0028] The driven part includes two first fixing pieces 202, a rotating sleeve 203, and a limiting groove 204. The two first fixing pieces 202 are both fixedly installed at the bottom of the second die body 201. The rotating sleeve 203 is rotatably installed between the two first fixing pieces 202. The limiting groove 204 is opened between the top and the bottom of the rotating sleeve 203;

[0029] The disassembly and assembly die assembly 3 includes a disassembly and assembly die body 301 and four driving parts, and the four driving parts are respectively fixedly installed at both ends of the disassembly and assembly die body 301;

[0030] The driving part includes two second fixing pieces 302, a rotating plate 303, a telescopic plate 304, and two limiting strips 313. The two second fixing pieces 302 are both fixedly installed at one end of the disassembly and assembly die body 301. The rotating plate 303 is rotatably installed between the two second fixing pieces 302. The telescopic plate 304 is fixedly installed at one end of the rotating plate 303, and the telescopic plate 304 is adapted to the rotating sleeve 203. The two limiting strips 313 are respectively fixedly installed at the top and bottom of the telescopic plate 304, and the limiting strip 313 is adapted to the limiting groove 204;

[0031] The disassembly and assembly die assembly 3 further includes three first fixing blocks 305, three rotating rods 306, three second fixing blocks 307, and a sliding plate 308. The three first fixing blocks 305 are all fixedly installed at the bottom of the disassembly and assembly die body 301. The three rotating rods 306 are respectively rotatably installed in the three first fixing blocks 305. The three second fixing blocks 307 are respectively rotatably installed outside the three rotating rods 306. The sliding plate 308 is fixedly installed between the bottoms of the three second fixing blocks 307. The first die assembly 1 further includes a chute 102. The chute 102 is arranged on the inner wall of the bottom of the first die body 101. The sliding plate 308 is slidably installed in the chute 102;

[0032] The disassembly and assembly die assembly 3 further includes a strip-shaped plate 310, two bolts 311, and a pull ring 312. The strip-shaped plate 310 is fixedly installed on the front side of the sliding plate 308. The two bolts 311 are both movably installed in the strip-shaped plate 310 by means of threads. The pull ring 312 is fixedly installed on the front side of one of the second fixing blocks 307. The first die assembly 1 further includes two threaded holes 103 and a limiting plate 104. The two threaded holes 103 are both opened on the inner wall of the bottom of the chute 102. The limiting plate 104 is fixedly installed in the chute 102. The bolt 311 is adapted to the threaded hole 103, and the limiting plate 104 is in contact with the rear side of the sliding plate 308.

[0033] In this implementation plan, when disassembling, the staff enter the first mold body 101, remove two bolts 311 from the two threaded holes 103, and hang the steel cable of the winch on the pull ring 312. After the staff leave the first mold body 101, the winch is started. At this time, due to the frictional force between the box girder and the first mold body 101 and the two second mold bodies 201, the first mold body 101 and the two second mold bodies 201 will not be pulled and slide, while the sliding plate 308 will be pulled and slide in the chute 102, driving the three second fixing blocks 307 to slide. At this time, the three rotating rods 306 will rotate in the three second fixing blocks 307 and become inclined, generating a pulling force on the three first fixing blocks 305, thereby pulling the disassembly and assembly mold body 301 to slide downward. The downward sliding of the disassembly and assembly mold body 301 will drive the four rotating plates 303 to rotate while sliding downward, thereby driving the four telescopic plates 304 to slide out of the four rotating sleeves 203. When the telescopic plate 304 slides out to a certain distance, the limiting strip 313 slides to contact the limiting groove 204, and the telescopic plate 304 will not continue to slide outward. At this time, when the disassembly and assembly mold body 301 continues to slide downward, it will pull the four rotating sleeves 203 to slide downward, thereby pulling the two second mold bodies 201 to rotate downward. When the two second mold bodies 201 are pulled and rotate downward, the frictional force between the two second mold bodies 201 and the box girder will disappear. At this time, the frictional force between the first mold body 101 and the box girder is not sufficient to prevent the first mold body 101 from sliding under the pulling of the winch. Continuing to pull the sliding plate 308 can pull out the first mold body 101 and the two second mold bodies 201 from the box girder. After completely pulling out, connect the disassembly and assembly mold body 301 to the crane. During the hoisting process, the disassembly and assembly mold body 301 will be pulled upward and reset. After hoisting to the next construction position, the staff enter the first mold body 101 again and install two bolts 311 to complete the installation. By setting the first mold assembly 1, the second mold assembly 2, and the disassembly and assembly mold assembly 3, the staff only need to disassemble and assemble two bolts 311 to disassemble and install the mold, greatly simplifying the construction steps.

[0034] Specifically, the first mold assembly 1 further includes four support rods 105, and the four support rods 105 are all fixedly installed on the bottom inner wall of the first mold body 101. The disassembly and assembly mold assembly 3 further includes four support sleeves 309, and the four support sleeves 309 are all fixedly installed on the bottom of the disassembly and assembly mold body 301. The four support sleeves 309 are respectively slidably sleeved outside the four support rods 105.

[0035] In this implementation plan, by setting the support rods 105 and the support sleeves 309, the disassembly and assembly mold body 301 can be supported when it slides downward, so that it maintains vertical up and down sliding, improves its stability, and prevents dislocation.

[0036] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical content of the technical solution of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An efficient quick-detachable cast-in-place box girder inner mold, comprising a first mold assembly (1), characterized in that: It also comprises two second mould assemblies (2) and a disassembly mould assembly (3), wherein the two second mould assemblies (2) are both rotatably connected to the first mould assembly (1), the disassembly mould assembly (3) is movably mounted in the first mould assembly (1), and the disassembly mould assembly (3) is connected to the two second mould assemblies (2) and drives the two second mould assemblies (2) to rotate.

2. According to claim 1, a highly efficient quick-detachable cast-in-place box girder inner mold is characterized by: The first mold assembly (1) comprises a first mold body (101), and the second mold assembly (2) comprises a second mold body (201), wherein the second mold body (201) is rotatably mounted on the top of the first mold body (101).

3. The efficient quick-detachable cast-in-place box girder inner mold according to claim 1 is characterized in that: The second mold assembly (2) further comprises two driven parts, both of which are fixedly mounted on the bottom of the second mold body (201).

4. The efficient quick-detachable cast-in-place box girder inner mold according to claim 3 is characterized in that: The driven part comprises two first fixing plates (202), a rotating sleeve (203), and a limiting groove (204); the two first fixing plates (202) are fixedly mounted on the bottom of the second mold body (201); the rotating sleeve (203) is rotatably mounted between the two first fixing plates (202); and the limiting groove (204) is provided between the top and the bottom of the rotating sleeve (203).

5. The efficient quick-detachable cast-in-place box girder inner mold according to claim 1 is characterized in that: The disassembly mold assembly (3) comprises a disassembly mold body (301) and four active parts, wherein the four active parts are respectively fixedly mounted at two ends of the disassembly mold body (301).

6. The efficient quick-detachable cast-in-place box girder inner formwork according to claim 5 is characterized in that: The active part comprises two second fixing plates (302), a rotating plate (303), a telescopic plate (304), and two limiting strips (313). The two second fixing plates (302) are fixedly mounted on one end of the disassembly and assembly mold body (301). The rotating plate (303) is rotatably mounted between the two second fixing plates (302). The telescopic plate (304) is fixedly mounted on one end of the rotating plate (303), and the telescopic plate (304) is matched with the rotating sleeve (203). The two limiting strips (313) are respectively fixedly mounted on the top and bottom of the telescopic plate (304), and the limiting strips (313) are matched with the limiting grooves (204).

7. The efficient quick-detachable cast-in-place box girder inner mold according to claim 1 is characterized in that: The disassembly mold assembly (3) further comprises three first fixed blocks (305), three rotating rods (306), three second fixed blocks (307), and a sliding plate (308). The three first fixed blocks (305) are all fixedly mounted on the bottom of the disassembly mold body (301). The three rotating rods (306) are respectively rotatably mounted inside the three first fixed blocks (305). The three second fixed blocks (307) are respectively rotatably mounted outside the three rotating rods (306). The sliding plate (308) is fixedly mounted between the bottoms of the three second fixed blocks (307). The first mold assembly (1) further comprises a slide groove (102). The slide groove (102) is arranged on the inner wall of the bottom of the first mold body (101). The sliding plate (308) is slidably mounted in the slide groove (102).

8. The efficient quick-detachable cast-in-place box girder inner formwork according to claim 1 is characterized in that: The disassembly and assembly mold assembly (3) further comprises a strip plate (310), two bolts (311), and a pull ring (312); the strip plate (310) is fixedly mounted on the front side of the sliding plate (308); the two bolts (311) are both movably mounted in the strip plate (310) through threads; the pull ring (312) is fixedly mounted on the front side of one of the second fixed blocks (307); the first mold assembly (1) further comprises two threaded holes (103) and a limit plate (104); the two threaded holes (103) are both formed on the bottom inner wall of the slide groove (102); the limit plate (104) is fixedly mounted in the slide groove (102); the bolts (311) are matched with the threaded holes (103); and the limit plate (104) is in contact with the rear side of the sliding plate (308).

9. The efficient quick-detachable cast-in-place box girder inner formwork according to claim 1 is characterized in that: The first mold assembly (1) further comprises four support rods (105), the four support rods (105) are all fixedly mounted on the bottom inner wall of the first mold body (101), and the disassembly mold assembly (3) further comprises four support sleeves (309), the four support sleeves (309) are all fixedly mounted on the bottom of the disassembly mold body (301), and the four support sleeves (309) are respectively slidably sleeved on the outside of the four support rods (105).

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