Die for prefabricating box girder

Abstract

The utility model relates to the technical field of precast box girders, and discloses a mould for precast box girders, which comprises a mould frame, a first mould box and a second mould box, the first mould box and the second mould box are arranged on the mould frame in a relative movement mode, and a lifting mechanism is further arranged on the mould frame. The lifting mechanism comprises a groove cavity formed in the top of the mold frame and a partition plate fixed to the bottom of the mold frame, a lifting plate is arranged in the groove cavity, two hydraulic cylinders are installed on the partition plate, and the telescopic ends of the two hydraulic cylinders extend into the groove cavity and are fixedly connected to the bottom of the lifting plate; through the arrangement of the lifting mechanism, the prefabricated box girder can be jacked upwards, so that the box girder is lifted from the first mold box and the second mold box, the box girder can be conveniently hoisted and taken out from the mold, the rapid demolding of the box girder is realized, the demolding efficiency is greatly improved, the manufacturing efficiency of the box girder is improved, and the production cost is reduced. And efficient manufacturing of the box girder is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to precast box girder technical field, especially in a kind of precast box girder mould for mould. BACKGROUND

[0002] At present, the box girder of reinforced concrete structure is mainly divided into precast box girder and cast-in-place box girder, and the existing concrete precast box girder usually needs to use mould to complete in the manufacturing process. And in the prior art such as the patent with the announcement number CN 221819013 U, a kind of concrete precast box girder mould is disclosed, the mould can control two half modules to be far away from each other or be close to each other by the cooperation between threaded rod, sliding plate, channel block and two sliding ports, avoid the cumbersome demolding work, reach the effect of quick demolding. Although the above-mentioned mould can realize the separation or close of two half modules, facilitate the demolding of box girder, but after demolding, the box girder is often hoisted and taken out from the mould, however, the existing mould cannot jack up the box girder, so that the box girder is limited by two half modules when hoisting and taking out, inconvenient for hoisting operation to carry out, thereby affecting the demolding efficiency of box girder, and it is not conducive to the efficient manufacturing of precast box girder. UTILITY MODEL CONTENT

[0003] The utility model provides a kind of precast box girder mould to solve the problem that existing mould cannot jack up box girder, inconvenient for hoisting operation to carry out, affect the demolding efficiency of box girder.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a kind of precast box girder mould, including mould frame, and the first mould box and second mould box of the relative movement being set on the mould frame, the mould frame is also provided with lifting mechanism;

[0005] The lifting mechanism includes groove cavity opened in the top of mould frame and partition plate fixed in the bottom of mould frame, the inside of groove cavity is provided with lifting plate, two hydraulic cylinders are installed on the partition plate, and the telescopic end of two hydraulic cylinders extends into groove cavity, and is fixedly connected at the bottom of lifting plate.

[0006] Preferably, the top of the partition plate is also provided with four telescopic auxiliary supporting rods, four auxiliary supporting rods are symmetrically distributed on the two sides of two hydraulic cylinders, and the top of four auxiliary supporting rods is fixedly connected at the four corners of the bottom of lifting plate respectively.

[0007] Preferably, the first mould box and the second mould box are also provided with limiting structure, and the limiting structure includes positioning strip fixed on one side of the second mould box and positioning groove opened on the side adjacent to the second mould box of the first mould box, the positioning strip can be inserted into the positioning groove, and the two sides of the first mould box are screwed with locking bolt, and one side of the positioning strip is provided with screw hole for the screwing of locking bolt.

[0008] Preferably, the mold frame is further provided with two sets of adjusting mechanisms for driving the relative movement of the first mold box and the second mold box, and each set of adjusting mechanisms comprises two fixed blocks installed on the top of the mold frame, a bidirectional screw rod is rotatably installed between the two fixed blocks, and one side of one of the fixed blocks is fixed with a motor for driving the bidirectional screw rod to rotate, and a screw rod seat is connected to each of the two threaded segments of the bidirectional screw rod, and one side of each of the two screw rod seats is fixed to one side of the first mold box and the second mold box, respectively.

[0009] Preferably, the bottom of the first mold box and the second mold box is provided with a sliding block, and the top of the mold frame is provided with a sliding groove matched with the sliding block.

[0010] Preferably, the mold frame is further provided with a cover, and the cover covers the adjusting mechanism.

[0011] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0012] (1) Through the setting of the lifting mechanism, after the box girder is prefabricated and formed, the box girder that is prefabricated and completed can be lifted upward, so that the box girder is lifted from the first mold box and the second mold box, thereby facilitating the hoisting and taking out of the box girder from the mold, realizing the rapid demolding of the box girder, greatly improving the demolding efficiency, and thereby being beneficial to improve the manufacturing efficiency of the box girder and realizing the efficient manufacturing of the box girder.

[0013] (2) Through the setting of the limiting structure, the first mold box and the second mold box can be stably fixed, the gap between the first mold box and the second mold box caused by the extrusion of the slurry during grouting is avoided, the problem of slurry leakage is caused, thereby ensuring the stable closing of the first mold box and the second mold box, facilitating the manufacturing of the box girder, and being beneficial to improve the quality of the box girder manufacturing and facilitate the subsequent use of the prefabricated box girder. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is Figure 1 It is a structural schematic view of the utility model after the cover is disassembled;

[0017] Figure 3 It is Figure 1Structure schematic view of the first mold box and the second mold box during adjustment;

[0018] Figure 4 Structure schematic view of the first mold box and the second mold box during adjustment; Figure 1 Structure schematic view of the first mold box and the second mold box during adjustment;

[0019] Figure 5 Structure schematic view of the first mold box and the second mold box during adjustment; Figure 3 Structure schematic view of the first mold box and the second mold box during adjustment;

[0020] Figure 6 Structure schematic view of the first mold box and the second mold box during adjustment; Figure 5 Structure schematic view of the first mold box and the second mold box during adjustment;

[0021] Figure 7 Structure schematic view of the first mold box and the second mold box during adjustment;

[0022] In the figure: 1, mold frame; 2, first mold box; 3, second mold box; 4, adjustment mechanism; 41, fixed block; 42, bidirectional screw rod; 43, screw rod seat; 44, motor; 5, cover; 6, limiting structure; 61, positioning strip; 62, locking bolt; 63, screw hole; 7, partition plate; 8, lifting mechanism; 81, lifting plate; 82, hydraulic cylinder; 83, auxiliary support rod; 9, slot. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] As shown in Figures 1-7 Fig. 1 is a prefabricated box girder mold, which comprises a mold frame 1 and a first mold box 2 and a second mold box 3 movably arranged on the mold frame 1, and a lifting mechanism 8 is further arranged on the mold frame 1.

[0025] The lifting mechanism 8 comprises a slot 9 opened at the top of the mold frame 1 and a partition plate 7 fixed at the bottom of the mold frame 1, the inside of the slot 9 is provided with a lifting plate 81, two hydraulic cylinders 82 are installed on the partition plate 7, and the telescopic ends of the two hydraulic cylinders 82 are extended into the slot 9 and fixedly connected to the bottom of the lifting plate 81.

[0026] Specifically, the mold frame 1 is further provided with two groups of adjusting mechanisms 4 for driving the relative movement of the first mold box 2 and the second mold box 3, and each group of adjusting mechanisms 4 comprises two fixed blocks 41 mounted on the top of the mold frame 1, a bidirectional screw rod 42 rotatably mounted between the two fixed blocks 41, and a motor 44 fixed on one side of one of the fixed blocks 41 for driving the rotation of the bidirectional screw rod 42, and two screw rod seats 43 connected to the two threaded segments of the bidirectional screw rod 42, and the two screw rod seats 43 are fixed on one side of the first mold box 2 and the second mold box 3 respectively.

[0027] Through the above, when the box girder is preprocessed, the mold is first placed at the preprocessing site by the mold frame 1, and then the motor 44 drives the bidirectional screw rod 42 to rotate, so that the bidirectional screw rod 42 drives the first mold box 2 and the second mold box 3 to move close to each other through the screw rod seat 43, until the first mold box 2 and the second mold box 3 are butted, and the mold is completed. Then the workers pour the slurry into the inside of the first mold box 2 and the second mold box 3, and wait for the slurry to cool and form, to complete the production of the box girder;

[0028] And after the box girder is cooled and formed, the motor 44 can drive the bidirectional screw rod 42 to rotate in the opposite direction, so that the bidirectional screw rod 42 drives the first mold box 2 and the second mold box 3 to move relative to each other through the screw rod seat 43. At this time, the first mold box 2 and the second mold box 3 move away from each other, until the lifting plate 81 in the groove cavity 9 is exposed, and then the lifting plate 81 is pushed upward by the hydraulic cylinder 82, so that the lifting plate 81 pushes the preprocessed box girder upward to lift the box girder out of the first mold box 2 and the second mold box 3, thereby facilitating the hoisting and taking out of the box girder from the mold, realizing the rapid demolding of the box girder, greatly improving the demolding efficiency, and further improving the production efficiency of the box girder, realizing the efficient production of the box girder.

[0029] Further, in order to realize the stable support of the lifting plate 81 and ensure the stable lifting of the lifting plate 81, as shown in Figures 4-6 , the top of the partition plate 7 is further provided with four extendable auxiliary supporting rods 83, which are symmetrically distributed on the two sides of the two hydraulic cylinders 82, and the top ends of the four auxiliary supporting rods 83 are fixedly connected to the four corners of the bottom of the lifting plate 81.

[0030] Further, in order to ensure the stable relative movement of the first mold box 2 and the second mold box 3, as shown in Figures 1-7 , the bottom of the first mold box 2 and the second mold box 3 is provided with a sliding block, and the top of the mold frame 1 is provided with a sliding groove matched with the sliding block.

[0031] Further, in order to realize the protection of the adjusting mechanism 4 and ensure the normal use of the adjusting mechanism 4, as shown in Figure 1 , Figure 3 and Figure 4As shown, the mold frame 1 is also provided with a cover 5, and the cover 5 covers the adjusting mechanism 4.

[0032] In addition, in an embodiment, as shown in the drawings, Figures 1-3 and Figure 5 and Figure 6 As shown, the first mold box 2 and the second mold box 3 are also provided with a limiting structure 6, and the limiting structure 6 comprises a positioning strip 61 fixed on one side of the second mold box 3, and a positioning groove provided on the side of the first mold box 2 adjacent to the second mold box 3, the positioning strip 61 can be inserted into the positioning groove, and the two sides of the first mold box 2 are screwed with locking bolts 62, and one side of the positioning strip 61 is provided with screw holes 63 for the locking bolts 62 to screw.

[0033] When the mold is closed, the positioning strip 61 on one side of the second mold box 3 is inserted into the positioning groove on one side of the first mold box 2 to quickly position the first mold box 2 and the second mold box 3, and then the locking bolts 62 are screwed into the screw holes 63 to screw the positioning strip 61 with the first mold box 2, thereby realizing stable fixation between the first mold box 2 and the second mold box 3, avoiding the problem of gap between the first mold box 2 and the second mold box 3 caused by extrusion of the slurry during grouting, causing the slurry to leak, thereby ensuring stable mold closing between the first mold box 2 and the second mold box 3, facilitating the production of box girder, and being conducive to improving the quality of box girder production, facilitating the subsequent use of prefabricated box girder.

[0034] The above only describes the preferred embodiments of the present application, and does not limit the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mold for precast box girder, characterized by: The mould frame (1) is provided with a lifting mechanism (8), a first mould box (2) and a second mould box (3) which are movably arranged on the mould frame (1), and a limiting structure (6) is arranged between the first mould box (2) and the second mould box (3). The lifting mechanism (8) comprises a groove (9) formed in the top of the mould frame (1), a partition plate (7) fixed to the bottom of the mould frame (1), a lifting plate (81) arranged in the groove (9), and two hydraulic cylinders (82) mounted on the partition plate (7) and extending into the groove (9) and fixed to the bottom of the lifting plate (81).

2. The precast box girder mold according to claim 1, wherein: The top of the partition plate (7) is further provided with four telescopic auxiliary supporting rods (83) which are symmetrically arranged on the two sides of the two hydraulic cylinders (82) and fixed to the four corners of the bottom of the lifting plate (81).

3. The precast box girder mold of claim 1, wherein: The limiting structure (6) comprises a positioning strip (61) fixed to one side of the second mould box (3) and a positioning groove formed in the side of the first mould box (2) adjacent to the second mould box (3), the positioning strip (61) is inserted into the positioning groove, and the two sides of the first mould box (2) are screwed with locking bolts (62), and one side of the positioning strip (61) is provided with screw holes (63) for the locking bolts (62).

4. The precast box girder mold of claim 1, wherein: The mould frame (1) is further provided with two sets of adjusting mechanisms (4) for driving the first mould box (2) and the second mould box (3) to move relative to each other, and each set of adjusting mechanism (4) comprises two fixed blocks (41) mounted on the top of the mould frame (1), a bidirectional screw rod (42) rotatably arranged between the two fixed blocks (41), a motor (44) fixed to one side of one of the fixed blocks (41) and driving the bidirectional screw rod (42) to rotate, and a screw rod seat (43) connected to each of the two threaded segments of the bidirectional screw rod (42) and fixed to one side of the first mould box (2) and the second mould box (3).

5. The precast box girder mold of claim 1, wherein: The bottom of the first mould box (2) and the second mould box (3) is provided with a sliding block, and the top of the mould frame (1) is provided with a sliding groove matched with the sliding block.

6. The precast box girder mold of claim 4, wherein: The mould frame (1) is further provided with a cover (5) which covers the adjusting mechanism (4).

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