CN212372389U

CN212372389U - Prefabricated box girder integral drawing type core mould device

Info

Publication number: CN212372389U
Application number: CN202020498495.6U
Authority: CN
Inventors: 赵学敏
Original assignee: CCCC Fourth Harbor Engineering Co Ltd
Current assignee: CCCC Fourth Harbor Engineering Co Ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-01-19
Anticipated expiration: 2030-04-07

Abstract

The utility model provides a whole pull-out formula mandrel device of prefabricated box girder, include left template and right template of constituteing by fixed die plate and movable mould board, the device that opens and shuts of setting on left template and right template, the mutual lock of left template and right template forms inside has the symmetrical polygon barrel of bearing space, the device that opens and shuts includes vertical pull rod, two horizontal supports, a plurality of lower branches, the last branch with a plurality of lower branch one-to-ones, the lower extreme of lower branch rotates and installs on fixed die plate, and its upper end can dismantle with the last branch that corresponds and be connected, the upper end of going up branch is rotated and is installed on movable mould board, and its lower extreme passes through the pivot coupling with the lower branch that corresponds, each pivot is connected to vertical pull rod, two horizontal supports respectively the butt at the both ends of vertical pull rod, and can dismantle respectively at both ends and connect on two fixed die plates. The utility model discloses it is easy and simple to handle, reduce the manual work, reduce intensity of labour, can build fast and demolish the template, improved the efficiency of construction greatly.

Description

Prefabricated box girder integral drawing type core mould device

Technical Field

The utility model belongs to the technical field of, especially, relate to a whole pull-out formula mandrel device of prefabricated case roof beam.

Background

One kind of box girder bridge engineering center sill, the inside is hollow, and there is the flange on upper portion both sides, similar case, therefore obtains the name. The construction of the box girder occupies a larger proportion in the construction of the bridge, a mode of prefabricating the box girder is usually adopted, the prefabricated box girder is transported to a construction site for installation after the prefabricated part factory is manufactured, the transportation condition requirement is high, the transportation cost is large, when the prefabricated box girder is manufactured on the site, the building of the template is difficult to meet the precision requirement, the construction efficiency is low, the speed is slow, and the cost is high; the damage to heavy castings is large during the form removal, the construction efficiency is low, the speed is slow, and the labor intensity is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated box girder is whole to be taken out and to be drawn out formula mandrel device adopts the design of drawing out formula, and is easy and simple to handle, reduces artifically, reduces intensity of labour, can build fast and demolish the template, has improved the efficiency of construction greatly.

The utility model discloses a realize through following technical scheme:

a prefabricated box girder integral drawing type core mould device comprises two fixed mould plates, two movable mould plates and two opening and closing devices, wherein the upper ends of the two fixed mould plates are respectively rotatably connected with the lower ends of the two movable mould plates to respectively form a left mould plate and a right mould plate, the left mould plate and the right mould plate are mutually buckled to form a symmetrical polygonal cylinder body with a supporting space inside, the two opening and closing devices are respectively arranged on the left mould plate and the right mould plate, any opening and closing device comprises a longitudinal pull rod, two transverse supports, a plurality of lower support rods and upper support rods which are in one-to-one correspondence with the plurality of lower support rods, the lower end of any one of the lower support rods is vertically and rotatably arranged on the fixed mould plates, the upper end of any one of the upper support rods is vertically and rotatably arranged on the movable mould plates, the lower end of the upper support rod is in shaft connection with the corresponding lower support rods through shaft pins, the longitudinal pull rod, two ends of any transverse support are respectively detachably connected to the two fixed templates.

Furthermore, a pull ring is arranged on the longitudinal pull rod.

Furthermore, the lower end of any one of the lower supporting rods is connected with a lower fixing plate through a shaft, the lower fixing plate is fixed on the fixed template, the upper end of any one of the upper supporting rods is connected with an upper fixing plate through a shaft, and the upper fixing plate is fixed on the movable template.

Further, still include anti device that floats, form a plurality of air vents between two fixed templates, anti device that floats includes a plurality of dead levers with a plurality of air vents one-to-one, and the lower extreme anchor of arbitrary dead lever is in the system roof beam pedestal, and its upper end passes and can dismantle after the air vent that corresponds and be connected with the depression bar, compresses tightly two fixed templates respectively on the system roof beam pedestal through the depression bar.

Furthermore, the upper parts of the fixing rods are threaded sections, the upper part of any fixing rod is a threaded section, and the upper end of any fixing rod penetrates through the corresponding pressing rod and is connected with a nut in a threaded mode.

Furthermore, the lower end of any fixed template is provided with a lower buckling surface, and the lower ends of the two fixed templates are clamped and fixedly butted through the lower buckling surfaces.

Furthermore, the upper end of any movable template is provided with an upper buckling surface, and the upper ends of the two movable templates are clamped and fixedly butted through the upper buckling surfaces.

Furthermore, the upper end of any fixed template is coupled with the lower end of the corresponding movable template through a hinge.

Furthermore, a first L-shaped groove is formed in the upper end of any fixed template along the length direction of the hinge, and a second L-shaped groove is formed in the lower end of any movable template along the length direction of the hinge.

Furthermore, the upper end of any one lower support rod is connected with the corresponding upper support rod through a bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the box girder prefabricating construction machine has the advantages that the structure is simple, parts are few, the left template and the right template are mutually buckled to form a symmetrical polygonal cylinder during assembly, the position of the movable template on the fixed template is supported through the opening and closing device, the assembling speed is high, the movable template is folded towards the direction of the fixed template through the opening and closing device during disassembly, and then the movable template is pulled out, the whole machine is designed in a drawing mode, the operation is simple, the construction process is easy to master, the safety and reliability are realized, the operation time is saved, the templates can be quickly built and disassembled, the use and the assembly are convenient, and the installation and the disassembly simultaneously adopt mechanical cooperation operation such as a winch and the like, so that the labor intensity of workers for box girder prefabricating construction is greatly reduced, the labor force is saved, the prefabricating cost; the left template and the right template are made of integral panels, the integrity is good, the indoor flatness of the box girder after prefabrication is good, the prefabrication quality of the box girder can be effectively controlled, the geometric dimension of the box girder is accurate, and the surface of concrete is smooth and attractive.

Drawings

Fig. 1 is a formal diagram of the prefabricated box girder integral drawing type core mold device of the present invention, which is not shown with a transverse support;

FIG. 2 is a formal diagram showing the lateral support of the prefabricated box girder integrally-drawn core mold device of the present invention;

fig. 3 is a schematic structural view showing that the left formwork of the prefabricated box girder integral drawing core formwork device of the present invention is in a supporting state and the right formwork of the prefabricated box girder integral drawing core formwork device is in a formwork removing state;

fig. 4 is a schematic structural view of the form removal state in the prefabricated box girder integral drawing type core mold device of the present invention;

fig. 5 is a schematic structural view of the anti-floating device in the prefabricated box girder integrally-drawn core mold device of the present invention.

In the figure, 1-fixed template, 11-lower fastening surface, 12-first L-shaped groove, 2-movable template, 21-upper fastening surface, 22-second L-shaped groove, 3-opening and closing device, 31-longitudinal pull rod, 32-transverse support, 33-lower support rod, 34-upper support rod, 35-shaft pin, 36-lower fixing plate, 37-upper fixing plate, 4-anti-floating device, 41-fixing rod, 42-pressure rod, 43-nut and 5-hinge.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, fig. 1 is a formal view of the prefabricated box girder integrally-drawn core mold device of the present invention, which does not show the lateral support, and fig. 2 is a formal view of the prefabricated box girder integrally-drawn core mold device of the present invention, which shows the lateral support. A prefabricated box girder integral drawing type core mould device comprises two fixed mould plates 1, two movable mould plates 2 and two opening and closing devices 3, wherein the upper ends of the two fixed mould plates 1 are respectively and rotatably connected with the lower ends of the two movable mould plates 2 to respectively form a left mould plate and a right mould plate, the left mould plate and the right mould plate are mutually buckled to form a symmetrical polygonal cylinder body with a supporting space inside, the two opening and closing devices 3 are respectively arranged on the left mould plate and the right mould plate, any opening and closing device 3 comprises a longitudinal pull rod 31, two transverse supports 32, a plurality of lower support rods 33 and upper support rods 34 which are in one-to-one correspondence with the plurality of lower support rods 33, the lower end of any one of the lower support rods 33 is vertically and rotatably arranged on the fixed mould plates 1, the upper end of any one of the upper support rods 34 is detachably connected with the corresponding upper support rods 34, the upper end of any one of the upper support, the longitudinal pull rod 31 is connected with each shaft pin 35, the two transverse supports 32 are respectively abutted against two ends of the longitudinal pull rod 31, and two ends of any transverse support 32 are respectively detachably connected on the two fixed templates 1.

Please refer to fig. 3 and fig. 4 in combination, fig. 3 is a schematic structural diagram of the prefabricated box girder integrally-drawn core mold device of the present invention, in which the left mold plate is in the supporting state and the right mold plate is in the mold-removing state, and fig. 4 is a schematic structural diagram of the prefabricated box girder integrally-drawn core mold device of the present invention, in which the mold-removing state is adopted. The opening and closing device 3 is used for opening and closing the movable template 2, and the movable template 2 is contracted and closed in a rotating and folding mode towards the fixed template 1, so that the template support, the template removal, the transportation and the storage are facilitated. During the use, through the vertical pull rod 31 of hoist engine pulling, vertical pull rod 31 passes through each pivot 35 and drives upper strut 34 and rotate on movable mould board 2, and vertical pull rod 31 passes through each pivot 35 and drives down strut 33 and rotate on fixed die plate 1 simultaneously to make and drive movable mould board 2 and rotate on fixed die plate 1, and make movable mould board 2 keep away from fixed die plate 1, when upper strut 34 struts with corresponding lower strut 33 and be a line, movable mould board 2 is with fixed die plate 1 and be the supported state, as shown in fig. 1. In one embodiment, the longitudinal tie rod 31 is provided with a pull ring. It is convenient to pull the longitudinal draw bar 31 by a hoist or the like. In one embodiment, the upper end of the fixed die plate 1 is coupled to the lower end of the corresponding movable die plate 2 by a hinge 5. The rotary connection between the fixed template 1 and the corresponding movable template 2 is realized. In one embodiment, a first L-shaped groove 12 is formed at the upper end of any one of the fixed formworks 1 along the length direction of the hinge 5, and a second L-shaped groove 22 is formed at the lower end of any one of the movable formworks 2 along the length direction of the hinge 5. The vertical side wall of the first L-shaped groove 12 is coupled to the vertical side wall of the corresponding second L-shaped groove 22 by a hinge 5, which facilitates the rotation of the movable die plate 2 on the fixed die plate 1. In one embodiment, a lower fixing plate 36 is coupled to a lower end of each lower supporting rod 33, the lower fixing plate 36 is fixed to the fixed platen 1, an upper fixing plate 37 is coupled to an upper end of each upper supporting rod 34, and the upper fixing plate 37 is fixed to the movable platen 2.

When the upper support rods 34 and the corresponding lower support rods 33 are supported to be in a line, the upper ends of the lower support rods 33 and the corresponding upper support rods 34 are detachably mounted at one time, thereby maintaining the supporting state of the movable die plate 2 and the fixed die plate 1. In one embodiment, the upper end of any lower support rod 33 is connected to the corresponding upper support rod 34 by a bolt. After the left template and the right template are unfolded in the same way, the left template and the right template are mutually buckled to form a symmetrical polygonal cylinder body with a supporting space inside. In one embodiment, the lower end of any one of the fixed formworks 1 is provided with a lower fastening surface 11, and the lower ends of the two fixed formworks 1 are fastened and butted through the lower fastening surface 11. Furthermore, the upper end of any movable template 2 is provided with an upper buckling surface 21, and the upper ends of the two movable templates 2 are clamped and fixedly butted through the upper buckling surface 21. The upper fastening surface 21 and the lower fastening surface 11 are inclined surfaces. After the left template and the right template are buckled with each other, two transverse supports 32 are installed and abut against the two ends of the longitudinal pull rod 31 respectively through the two transverse supports 32, so that the positions of the two longitudinal pull rods 31 are limited, the longitudinal pull rod 31 cannot move, the supporting state of the movable template 2 and the fixed template 1 is guaranteed, and the movable template 2 is prevented from rotating on the fixed template 1 and affecting the engineering quality. In an embodiment, the utility model discloses the whole pull out formula mandrel device's of precast box girder cross section is for falling trapezoidal. The design of trapezoidal four corners all sets up the chamfer.

The left template and the right template can be subjected to concrete pouring after being buckled with each other, and the template can be disassembled after the concrete pouring is finished for 6-8 hours. The two transverse supports 32 are firstly dismantled manually, then bolts between the upper ends of the lower support rods 33 and the corresponding upper support rods 34 are dismantled, then the longitudinal pull rod 31 is pulled by a winch, the longitudinal pull rod 31 drives the upper support rods 34 to rotate on the movable template 2 through the shaft pins 35, meanwhile, the longitudinal pull rod 31 drives the lower support rods 33 to rotate on the fixed template 1 through the shaft pins 35, so that the movable template 2 is driven to rotate on the fixed template 1, the movable template 2 is closed towards the fixed template 1, and after the movable template 2 is separated from top concrete, the left template and the right template are pulled out of the prefabricated box girder by the winch.

Referring to fig. 5, fig. 5 is a schematic structural view of the anti-floating device of the prefabricated box girder integrally-drawn core mold device according to the present invention. In an embodiment, the utility model discloses whole pull-out formula mandrel device of precast box girder still includes anti device 4 that floats, forms a plurality of air vents between two fixed die plate 1, and anti device 4 that floats includes a plurality of dead levers 41 with a plurality of air vents one-to-one, and the lower extreme anchor of arbitrary dead lever 41 is on the system roof beam pedestal, and its upper end can dismantle after passing the air vent that corresponds and be connected with depression bar 42, compresses tightly two fixed die plate 1 on the system roof beam pedestal respectively through depression bar 42. The lower extreme anchor of dead lever 41 is on the system roof beam pedestal, and the system roof beam pedestal is used for the mesa of on-the-spot case roof beam of making, and in the air vent that corresponds was passed to the upper end of dead lever 41 entered into the bearing space, then installed depression bar 42 on corresponding dead lever 41, through depression bar 42 and two fixed die plate 1 butts, compressed tightly two fixed die plate 1 on the system roof beam pedestal, avoided the utility model discloses the whole pull-out type mandrel device of precast box roof beam floats at concrete placement in-process, and anti-floating device 4 is demolishd when the form removal. Further, the upper portion of each fixing rod 41 is a threaded portion, and the upper end of each fixing rod 41 penetrates through the corresponding pressure rod 42 and is in threaded connection with a nut 43. The pressing rod 42 is pressed by the nut 43, so that the pressing rod 42 presses the two fixed die plates 1.

Compared with the prior art, the beneficial effects of the utility model are that: the structure is simple, the number of parts is small, a symmetrical polygonal cylinder body is formed by mutually buckling a left template and a right template during assembly, the position of a movable template 2 on a fixed template 1 is supported by an opening and closing device 3, the assembling speed is high, the movable template 2 is folded towards the direction of the fixed template 1 by the opening and closing device 3 during disassembly, and then the movable template is pulled out, the whole structure adopts a drawing design, the operation is simple, the construction process is easy to master, the operation is safe and reliable, the operation time is saved, the templates can be quickly built and disassembled, the use and the assembly are convenient, and meanwhile, the installation and the disassembly are all operated by matching machines such as a winch and the like, so that the labor intensity of workers in box girder prefabrication construction is greatly reduced, the labor force is saved, the prefabrication cost is reduced, the box girder; the left template and the right template are made of integral panels, the integrity is good, the indoor flatness of the box girder after prefabrication is good, the prefabrication quality of the box girder can be effectively controlled, the geometric dimension of the box girder is accurate, and the surface of concrete is smooth and attractive.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, so that any simple modification, equivalent change and modification made by the technical entity of the present invention to the above embodiments without departing from the technical solution of the present invention all fall within the scope of the technical solution of the present invention.

Claims

1. A prefabricated box girder integral drawing type core die device is characterized by comprising two fixed die plates, two movable die plates and two opening and closing devices, wherein the upper ends of the two fixed die plates are respectively and rotatably connected with the lower ends of the two movable die plates to respectively form a left die plate and a right die plate, the left die plate and the right die plate are mutually buckled to form a symmetrical polygonal cylinder body with a supporting space inside, the two opening and closing devices are respectively arranged on the left die plate and the right die plate, any one opening and closing device comprises a longitudinal pull rod, two transverse supports, a plurality of lower support rods and upper support rods which are in one-to-one correspondence with the plurality of lower support rods, the lower end of any one lower support rod is vertically and rotatably arranged on the fixed die plates, the upper end of any one upper support rod is detachably connected with the corresponding upper support rod, the upper end of any one upper support rod is vertically and rotatably arranged on the movable, the longitudinal pull rod is connected with each shaft pin, the two transverse supports are respectively abutted against two ends of the longitudinal pull rod, and two ends of any transverse support are respectively detachably connected to the two fixed templates.

2. The precast box girder integrally drawn core mold device according to claim 1, wherein a pull ring is provided on the longitudinal pull rod.

3. The integrally extracted core mold device for precast box girders according to claim 1, wherein a lower fixing plate is coupled to a lower end of any one of the lower struts, the lower fixing plate is fixed to a fixed mold plate, and an upper fixing plate is coupled to an upper end of any one of the upper struts, the upper fixing plate being fixed to a movable mold plate.

4. The integrally-drawn core mold device for precast box girders according to claim 1, further comprising an anti-floating device, wherein a plurality of vent holes are formed between the two fixed mold plates, the anti-floating device comprises a plurality of fixing rods corresponding to the vent holes one by one, the lower ends of any of the fixing rods are anchored in the girder fabrication pedestal, the upper ends of the fixing rods pass through the corresponding vent holes and then are detachably connected with the pressing rods, and the two fixed mold plates are respectively pressed on the girder fabrication pedestal through the pressing rods.

5. The precast box girder integrally-extracted type core molding device as claimed in claim 4, wherein the upper portions of the fixing rods are screw-threaded portions, the upper portion of any one of the fixing rods is screw-threaded, and a nut is screw-coupled to the upper end of any one of the fixing rods after passing through the corresponding compression rod.

6. The integrally-drawn core mold device for the precast box girder according to claim 1, wherein the lower end of any one of the two fixed mold plates is provided with a lower fastening surface, and the lower ends of the two fixed mold plates are fastened and butted by the lower fastening surface.

7. The integrally extracted core mold device for a precast box girder according to claim 6, wherein an upper fastening surface is provided at an upper end of any one of the movable mold plates, and upper ends of the two movable mold plates are fastened and butted by the upper fastening surface.

8. The integrally extracted core molding device for a precast box girder according to claim 1, wherein the upper end of any one of the fixed mold plates and the lower end of the corresponding movable mold plate are coupled by a hinge.

9. The integrally extracted core mold device for a precast box girder according to claim 8, wherein a first L-shaped groove is formed at an upper end of any one of the fixed mold plates in a length direction of the hinge, and a second L-shaped groove is formed at a lower end of any one of the movable mold plates in a length direction of the hinge.

10. The precast box girder integrally-extracted core molding device according to claim 1, wherein the upper end of any one of the lower struts is connected to the corresponding upper strut by a bolt.