A spliced ​​bridge prefabricated mold

Abstract

The present application relates to a spliced ​​bridge prefabricated mold, belonging to the field of bridge prefabricated panels, which includes a bottom mold, on which two side molds and two end molds are arranged, the side molds and the end molds are arranged to form a casting space, the end mold is formed by splicing a plurality of splicing units, a connecting structure is arranged between adjacent splicing units, the splicing unit includes a straight portion and a forming portion protruding toward the casting space, the forming portion includes an end plate parallel to the straight portion, the two ends of the end plate are connected to a side plate, and a preset angle is formed between the side plate and the end plate. The present application has the effect of improving the application scope of the bridge prefabricated mold.

Description

Technical Field

[0001] The present application relates to the field of prefabricated bridge panels, and in particular to a spliced ​​prefabricated bridge mould. Background Art

[0002] In the process of bridge construction, there are two forms: cast-in-place and prefabrication. The cast-in-place construction method is to set up molds on the construction site for pouring, and the bridge prefabricated panels are directly transported to the construction site for installation after being processed and formed in the factory. If the bridge is long and relatively standard, the use of prefabrication can both reduce costs and shorten the construction period.

[0003] In the related art, a bridge prefabricated mold generally includes a base mold and a side mold arranged on the base mold. The shape and length of the side mold are determined according to the shape of the bridge prefabricated board. Each prefabricated board requires a set of corresponding molds. The application scope of the molds is relatively limited. The prefabricated board processing factory needs to prepare more molds, and the mold cost is relatively high. Especially when protruding connecting parts are provided at both ends of the prefabricated board to improve the stability of the connection, the application scope of the corresponding mold is more narrow. Summary of the invention

[0004] In order to improve the application scope of bridge precast molds, the present application provides a spliced ​​bridge precast mold.

[0005] The present application provides a spliced ​​bridge prefabricated mold adopting the following technical solution:

[0006] A spliced ​​bridge prefabricated mold comprises a bottom mold, on which two side molds and two end molds are arranged, the side molds and the end molds are arranged to form a casting space, the end mold is formed by splicing a plurality of splicing units, a connecting structure is arranged between adjacent splicing units, the splicing unit comprises a straight portion and a forming portion protruding toward the casting space, the forming portion comprises an end plate parallel to the straight portion, both ends of the end plate are connected to side plates, and a preset angle is formed between the side plate and the end plate.

[0007] By adopting the above technical solution, when in use, the number of splicing units can be flexibly selected according to the width of the bridge prefabricated panel. When the size of the prefabricated panel is larger, the number of splicing units is more, and when the size of the prefabricated panel is smaller, the number of splicing units is reduced accordingly. The same set of molds can produce a variety of bridge prefabricated panels of different specifications, with a wide range of applications and low mold costs.

[0008] The straight part and the forming part can form undulating edges at both ends of the bridge precast panels. When the bridge precast panels are connected, the raised and recessed parts of the precast panels can be staggered and engaged, and then concrete can be poured, which can improve the stability of the connection of the bridge precast panels.

[0009] Optionally, the forming portion further comprises a bottom plate fixedly connected to the bottom mold, and the bottom plate is fixedly connected to the end plate and the side plate at the same time.

[0010] By adopting the above technical solution, the bottom plate can fix the end plate and the side plate, so that the end plate and the side plate are not easily deformed when squeezed by concrete. At the same time, the preset angle between the end plate and the side plate will not change, and the stability is better.

[0011] Optionally, a hinge shaft is provided between the side panel and the end panel, and the hinge shaft is rotatably matched with the side panel and the end panel. A connecting plate is provided at the bottom of the side panel, and a locking rod is threadedly connected to the connecting plate. A plurality of locking holes cooperating with the locking rod are provided on the bottom plate, and the locking holes are evenly distributed on an arc with the hinge shaft as the center.

[0012] By adopting the above technical solution, the angle between the side panel and the end panel can be adjusted according to needs, and the application range is wider. After the adjustment is completed, the locking rod can be inserted into the locking hole by rotating the locking rod to position the side panel, which makes the adjustment more convenient.

[0013] Optionally, the forming portion and the straight portion are formed integrally, and at least one of the two ends of the forming portion is connected to the straight portion.

[0014] By adopting the above technical solution, for bridge prefabricated panels with relatively uniform end protrusions, the integrally formed forming portion and straight portion can reduce the connection structure, facilitate assembly, and at the same time improve the stability of the overall mold.

[0015] Optionally, the forming portion and the straight portion are detachably matched, so that the forming portion and the straight portion are arranged and combined, and the straight portion between adjacent forming portions is configured as one or more.

[0016] By adopting the above technical solution, the forming part and the straight part can be flexibly assembled according to the shape of the bridge precast plate. The two forming parts can be directly connected, or multiple straight parts can be arranged between the two forming parts, which has a wider range of applications.

[0017] Optionally, the end plate includes an upper half and a lower half, the lower half is formed with an upper steel bar groove, the upper half is formed with an upper steel bar groove corresponding to the lower steel bar groove, and the upper steel bar groove and the lower steel bar groove are combined to form a steel bar hole for passing steel bars.

[0018] By adopting the above technical solution, when there are extended steel bars on the prefabricated bridge plate, holes for the steel bars to pass through need to be reserved on the mold. If the direct hole opening method is used, the steel bars need to be inserted into or pulled out of the reserved holes when installing and removing the mold, which makes the disassembly and assembly more troublesome and laborious. By dividing the end plate into the upper half and the lower half, the steel bars can be placed from top to bottom into the lower steel bar groove when installing the mold, which makes the installation more convenient. At the same time, when removing the mold, the upper half and the lower half can be removed separately, which saves labor when removing the mold.

[0019] Optionally, a plurality of support plates corresponding to the upper steel bar grooves are arranged between the upper half and the lower half, and one end of the support plate is located in the upper steel bar groove, and the other end is located in the lower steel bar groove.

[0020] By adopting the above technical solution, when there are two layers of extended steel bars on the prefabricated bridge plate, the upper and lower groups of steel bars can be separated by setting a support plate, the steel bars located at the bottom can be pressed into the lower steel bar groove, and the steel bars located at the top can be pushed into the upper steel bar groove.

[0021] Optionally, an upper mounting groove is formed on the upper half, a lower mounting groove is formed on the lower half, a mounting plate is provided on the side panel, one end of the mounting plate is located in the upper mounting groove, and the other end is located in the lower mounting groove, and the hinge shaft passes through the upper half, the mounting plate and the lower half in sequence.

[0022] By adopting the above technical solution, on the one hand, the hinge shaft can facilitate the relative rotation between the end plate and the side plate, and on the other hand, the hinge shaft can also position the upper half and the lower half. When installing the upper half, it only needs to be put on the hinge shaft to position the upper half and the lower half.

[0023] Optionally, all the support plates are connected by a cross bar, and connecting heads are respectively provided at both ends of the cross bar, and the connecting heads are sleeved on the hinge shaft.

[0024] By adopting the above technical solution, all support plates are connected to the cross bar. Moving the cross bar can drive all support plates to move together, which is convenient for installation and storage. At the same time, the connecting head sleeve is arranged on the hinge shaft, which can play the role of positioning the cross bar, and then position the support plate to prevent the support plate from sliding under the backlog of concrete.

[0025] Optionally, the connection structure includes a first baffle and a second baffle, the first baffle is located at an end of the side plate away from the end plate, the second baffle is fixedly connected to the straight portion, and a locking bolt is commonly provided on the first baffle and the second baffle.

[0026] By adopting the above technical solution, the locking bolt passes through the first baffle and the second baffle at the same time, the locking effect is better, and the overall mold is more stable during the casting process.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By setting up multiple splicing units, the number of splicing units can be flexibly selected according to the width of the bridge prefabricated panel during use. The same set of molds can produce bridge prefabricated panels of various specifications, and the mold has a wider range of application;

[0029] 2. By setting the forming part and the straight part, the forming part and the straight part can be combined according to the shape of the end of the bridge precast plate, so that the end of the formed concrete precast plate can form an undulating edge, and the raised part and the recessed part of the precast plate can be staggered and engaged, and the connection is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the three-dimensional structure of Example 1 of the present application;

[0031] Figure 2 yes Figure 1 Schematic diagram of the structure of the connection between the middle side mold and the end mold;

[0032] Figure 3 yes Figure 1 Schematic diagram of the structure of the splicing unit;

[0033] Figure 4 is a schematic diagram of the three-dimensional structure of Example 2 of the present application;

[0034] Figure 5 is a schematic structural diagram of a splicing unit according to Embodiment 3 of the present application;

[0035] Figure 6 yes Figure 5 Schematic diagram of the explosion structure;

[0036] Figure 7 is a schematic structural diagram of a splicing unit according to Embodiment 4 of the present application;

[0037] Figure 8 yes Figure 7 Schematic diagram of the explosion structure.

[0038] Explanation of the reference numerals: 1. bottom mold; 2. side mold; 3. end mold; 4. overlapping portion; 5. snap-fit; 6. splicing unit; 7. straight portion; 8. forming portion; 9. end plate; 10. side plate; 11. first baffle plate; 12. second baffle plate; 13. hinge shaft; 14. mounting plate; 15. connecting plate; 16. locking rod; 17. upper half; 18. lower half; 19. upper steel bar groove; 20. lower steel bar groove; 21. support plate; 22. cross bar; 23. connector. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-8 This application is described in further detail.

[0040] The embodiment of the present application discloses a spliced ​​bridge prefabricated mold.

[0041] Example 1

[0042] Reference Figure 1 A spliced ​​bridge prefabricated mold includes a bottom mold 1, a side mold 2 and an end mold 3. The side mold 2 is a straight plate. Two side molds 2 are arranged in parallel. One end mold 3 is arranged at each end of the side mold 2. The two end molds 3 and the two side molds 2 are arranged to form a casting space that is roughly rectangular.

[0043] Reference Figure 2 The side mold 2 is fixed on the bottom mold 1, and the end mold 3 can slide on the bottom mold 1 to adjust the size of the casting space according to the specifications of the bridge precast slab. Both ends of the end mold 3 are provided with protruding overlap portions 4, which overlap the upper surface of the side mold 2. The side mold 2 is provided with a buckle 5, and a locking groove is formed on the buckle 5. The side mold 2, the bottom mold 1 and the overlap portion 4 are all engaged in the locking groove. The buckle 5 is threaded with a bolt. After the position adjustment of the end mold 3 is completed, the position of the end mold 3 can be fixed by tightening the bolt.

[0044] In one implementation of the present embodiment, a plurality of positioning holes are evenly distributed on the upper surface of the side mold 2 along the length direction, and the bolts pass through the buckle 5 and the overlap portion 4 and extend into the positioning holes for positioning. The shear force between the bolts and the positioning holes limits the movement of the overlap portion 4, thereby limiting the movement of the end mold 3.

[0045] In another implementation of this embodiment, the bolt passes through the buckle 5 and abuts against the overlapping portion 4, pressing the overlapping portion 4 against the side mold 2, and limiting the movement of the overlapping portion 4 by the friction force between the overlapping portion 4 and the upper surface of the side mold 2, thereby limiting the movement of the end mold 3.

[0046] The end mold 3 is formed by splicing a plurality of splicing units 6. When in use, the number of splicing units 6 can be selected according to the width of the prefabricated board. A connecting structure is provided between adjacent splicing units 6, and a detachable connection between the splicing units 6 can be achieved through the connecting structure.

[0047] Reference Figure 3 The splicing unit 6 includes a straight portion 7 and a molding portion 8 protruding toward the casting space. The straight portion 7 and the molding portion 8 can form undulating edges at both ends of the bridge precast panels. When the bridge precast panels are connected, the protruding portions and the recessed portions of the precast panels can be staggered and engaged, and then concrete is poured, which can improve the stability of the connection of the bridge precast panels.

[0048] The forming portion 8 and the straight portion 7 are integrally formed. In one embodiment of the present embodiment, both ends of the forming portion 8 are provided with the straight portion 7. In another embodiment of the present embodiment, only one end of the forming portion 8 is provided with the straight portion 7. In actual use, the splicing units 6 with the straight portion 7 at both ends and the splicing units 6 with the straight portion 7 at only one end can also be used in combination.

[0049] The forming portion 8 is in an isosceles trapezoidal shape and includes an end plate 9 parallel to the straight portion 7. The two ends of the end plate 9 are connected to the side plates 10. The side plates 10 and the end plates 9 are fixedly connected, and a preset angle is formed between the side plates 10 and the end plates 9. The forming portion 8 also includes a bottom plate fixedly connected to the bottom mold 1, and the bottom plate is fixedly connected to the end plate 9 and the side plates 10 at the same time, so as to support the end plate 9 and the side plates 10.

[0050] The connecting structure includes a first baffle 11 and a second baffle 12. The first baffle 11 is located at one end of the side plate 10 away from the end plate 9. The second baffle 12 is fixedly connected to the straight portion 7. The first baffle 11 and the second baffle 12 are jointly provided with a locking bolt. When a plurality of splicing units 6 are connected to each other, the first baffle 11 and the second baffle 12 of adjacent splicing units 6 can be abutted against each other, and then the locking bolt is passed through and a nut is threadedly connected to the locking bolt to fix the adjacent splicing units 6.

[0051] Example 2

[0052] Reference Figure 4 The difference between this embodiment and the embodiment 1 is that the forming portion 8 and the straight portion 7 are detachably matched. The forming portion 8 and the straight portion 7 are connected and fixed by passing bolts and locking nuts. Through the detachable matching of the forming portion 8 and the straight portion 7, the forming portion 8 and the straight portion 7 can be freely arranged and combined, so that adjacent forming portions 8 can be directly connected, and any number of straight portions 7 can be installed between adjacent forming portions 8.

[0053] Example 3

[0054] Reference Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that the side plate 10 and the end plate 9 can rotate relative to each other to adjust a preset angle between the side plate 10 and the end plate 9.

[0055] A hinge shaft 13 is provided between the side plate 10 and the end plate 9, an upper mounting groove is formed on the upper half 17, a lower mounting groove is formed on the lower half 18, a mounting plate 14 is provided on the side plate 10, one end of the mounting plate 14 is located in the upper mounting groove, and the other end is located in the lower mounting groove, and the hinge shaft 13 sequentially passes through the upper half 17, the mounting plate 14 and the lower half 18. On the one hand, the provision of the hinge shaft 13 can facilitate the relative rotation between the end plate 9 and the side plate 10, and on the other hand, the hinge shaft 13 can also position the positions of the upper half 17 and the lower half 18. When installing the upper half 17, the upper half 17 and the lower half 18 can be positioned by simply fitting the upper half 17 on the hinge shaft 13.

[0056] A connecting plate 15 is provided at the bottom of the side plate 10, a locking rod 16 is threadedly connected to the connecting plate 15, and a plurality of locking holes cooperating with the locking rod 16 are provided on the bottom plate, and the locking holes are evenly distributed on an arc with the hinge shaft 13 as the center. The angle between the side plate 10 and the end plate 9 can be adjusted according to needs, and the application range is wider. After the adjustment is completed, the locking rod 16 can be inserted into the locking hole by rotating the locking rod 16, and the position of the side plate 10 can be positioned.

[0057] The end plate 9 includes an upper half 17 and a lower half 18. An upper steel bar groove 19 is formed on the upper half 17, and a lower steel bar groove 20 corresponding to the upper steel bar groove 19 is formed on the lower half 18. The upper steel bar groove 19 and the lower steel bar groove 20 are all semicircular, and the upper steel bar groove 19 and the lower steel bar groove 20 enclose a circular steel bar hole for passing steel bars. When there are extended steel bars on the bridge prefabricated plate, the lower half 18 can be installed first, and then the steel bars can be installed so that the steel bars are installed from top to bottom in the lower steel bar groove 20, and then the upper half 17 can be installed so that the upper steel bar groove 19 is buckled on the steel bars, and there is no need to directly pass the steel bars through the smaller steel bar holes. At the same time, the reverse operation can be performed to remove the mold, and both mold installation and demolding are relatively convenient.

[0058] In another specific implementation of this embodiment, the straight portion 7 is also divided into an upper half 17 and a lower half 18, and a semicircular groove is provided at the connection position of the upper half 17 and the lower half 18, and the semicircular grooves are combined one by one to form a steel bar hole for the steel bars to pass through.

[0059] Example 4

[0060] Reference Figure 7 and Figure 8 The difference between this embodiment and embodiment 3 is that the upper steel bar groove 19 and the lower steel bar groove 20 in this embodiment are both U-shaped, which is suitable for bridge precast panels with two layers of extended steel bars.

[0061] A support plate 21 is provided between the upper steel bar groove 19 and the lower steel bar groove 20, one end of the support plate 21 is located in the upper steel bar groove 19, and the other end is located in the lower steel bar groove 20. Both ends of the support plate 21 are provided with semicircular grooves, and circular steel bar holes are formed between the grooves and the upper steel bar groove 19 and the lower steel bar groove 20. By providing the support plate 21, the two layers of steel bars can be supported and positioned, so that the two layers of steel bars can be kept stable, and at the same time, concrete can be prevented from leaking from the upper steel bar groove 19 and the lower steel bar groove 20.

[0062] All support plates 21 are connected by a cross bar 22. When the cross bar 22 is moved, all support plates 21 can be driven to move simultaneously. Connectors 23 are provided at both ends of the cross bar 22. The connectors 23 are sleeved on the hinge shaft 13. The hinge shaft 13 can limit the position of the cross bar 22, thereby limiting the position of the support plates 21 to prevent the support plates 21 from falling off under the action of concrete pressure.

[0063] In another specific implementation of this embodiment, the straight portion 7 is also divided into an upper half 17 and a lower half 18, and a semicircular groove is provided at the connection position of the upper half 17 and the lower half 18. A support plate 21 is provided between the upper half 17 and the lower half 18, and the two ends of the support plate 21 correspond one-to-one with the semicircular grooves to form a steel bar hole for the steel bar to pass through.

[0064] The implementation principle of this embodiment is as follows: when in use, first install two side molds 2, fix the side molds 2 on the bottom mold 1, the distance between the two side molds 2 is determined according to the length of the bridge precast plate, and then assemble the splicing units 6 into the end mold 3, the number of splicing units 6 is determined according to the length of the bridge precast plate, when placing the embedded steel bars, first lift the upper half 17 and the cross bar 22 upwards, so that the upper half 17 and the support plate 21 are separated from the lower half 18, and then install the steel bars so that the steel bars enter the lower steel bar groove 20 from top to bottom, then move the cross bar 22 so that the lower end of the support plate 21 is inserted into the lower steel bar groove 20 and supported between the two layers of steel bars, and finally install the upper half 17.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spliced ​​bridge prefabricated mold, characterized in that: The invention comprises a bottom mold (1), on which two side molds (2) and two end molds (3) are arranged, the side molds (2) and the end molds (3) are arranged to enclose a casting space, the end mold (3) is formed by splicing a plurality of splicing units (6), a connecting structure is arranged between adjacent splicing units (6), the splicing unit (6) comprises a straight portion (7) and a forming portion (8) protruding toward the casting space, the forming portion (8) comprises an end plate (9) parallel to the straight portion (7), the two ends of the end plate (9) are connected to a side plate (10), a preset angle is formed between the side plate (10) and the end plate (9); The forming portion (8) further comprises a bottom plate fixedly connected to the bottom mold (1), and the bottom plate is fixedly connected to the end plate (9) and the side plate (10) at the same time; a hinge shaft (13) is arranged between the side plate (10) and the end plate (9), and the hinge shaft (13) is rotatably matched with the side plate (10) and the end plate (9); a connecting plate (15) is arranged at the bottom of the side plate (10), and a locking rod (16) is threadedly connected to the connecting plate (15); a plurality of locking holes matched with the locking rod (16) are arranged on the bottom plate, and the locking holes are evenly distributed on an arc with the hinge shaft (13) as the center.

2. The prefabricated mold for a spliced ​​bridge according to claim 1, characterized in that: The molding portion (8) and the straight portion (7) are integrally molded, and at least one of the two ends of the molding portion (8) is connected to the straight portion (7).

3. The prefabricated mold for a spliced ​​bridge according to claim 1 is characterized in that: The forming part (8) and the straight part (7) can be detachably matched, so that the forming part (8) and the straight part (7) are arranged and combined, and the straight part (7) between adjacent forming parts (8) is configured as one or more.

4. The prefabricated mold for a spliced ​​bridge according to claim 3 is characterized in that: The end plate (9) comprises an upper half (17) and a lower half (18), wherein a lower steel bar groove (20) is formed on the lower half (18), and an upper steel bar groove (19) corresponding to the lower steel bar groove (20) is formed on the upper half (17), wherein the upper steel bar groove (19) and the lower steel bar groove (20) enclose a steel bar hole for passing steel bars.

5. The spliced ​​bridge prefabricated mold according to claim 4 is characterized in that: A plurality of support plates (21) corresponding to the upper steel bar groove (19) are arranged between the upper half (17) and the lower half (18); one end of the support plate (21) is located in the upper steel bar groove (19), and the other end is located in the lower steel bar groove (20).

6. The spliced ​​bridge prefabricated mold according to claim 5, characterized in that: An upper mounting groove is formed on the upper half (17), a lower mounting groove is formed on the lower half (18), a mounting plate (14) is provided on the side plate (10), one end of the mounting plate (14) is located in the upper mounting groove, and the other end is located in the lower mounting groove, and the hinge shaft (13) passes through the upper half (17), the mounting plate (14) and the lower half (18) in sequence.

7. The spliced ​​bridge prefabricated mold according to claim 5 is characterized by: All the support plates (21) are connected via a cross bar (22), and connecting heads (23) are respectively provided at both ends of the cross bar (22), and the connecting heads (23) are sleeved on the hinge shaft (13).

8. The spliced ​​bridge prefabricated mold according to claim 1 is characterized by: The connection structure comprises a first baffle (11) and a second baffle (12); the first baffle (11) is located at one end of the side plate (10) away from the end plate (9); the second baffle (12) is fixedly connected to the straight portion (7); and locking bolts are commonly provided on the first baffle (11) and the second baffle (12).

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