CN211571412U - Adjustable shaping steel internal mold device for variable cross-section inner cavity of hanging basket - Google Patents

Abstract

The utility model provides an adjustable shaping steel internal mold device for variable cross-section inner cavities of hanging baskets, which comprises an internal mold sliding beam fixed in the inner cavity of a segment to be poured, an internal top pad beam is slidably installed on the internal mold sliding beam, a first main truss and a second main truss are arranged at two ends of the internal top pad beam, and the first main truss and the second main truss are connected in a mode of adjustable relative positions; the first main truss is provided with a horizontal top die and a first inclined top die, the horizontal top die is connected with the first inclined top die, and the first inclined top die is connected with the first side die through a hinge point; and a horizontal top die and a second inclined top die are arranged on the second main truss, the horizontal top die is connected with the second inclined top die, and the second inclined top die is connected with the second side die through a hinge point. By adopting the scheme that the distance between the main trusses is adjustable and the main trusses are divided into the left and right main trusses, the internal mold device with higher rigidity is realized, the shape of the template can be conveniently adjusted according to the variable cross-section inner cavity, and the construction efficiency is greatly improved.

Description

Adjustable shaping steel internal mold device for variable cross-section inner cavity of hanging basket

Technical Field

The utility model relates to a bridge pouring construction field, especially a hang adjustable design steel centre form device of basket variable cross section inner chamber.

Background

The hanging basket suspension casting system is widely applied to the existing bridge construction process, and particularly under the conditions of crossing river channels and multiple urban municipal engineering construction, complex geological conditions and other environmental factors, the bridge box girder construction is generally a hanging basket suspension casting bridge construction mode.

When hanging basket cantilever construction, cantilever section tradition centre form adopts full hall support to set up, and the construction of cooperation plank sheathing when carrying out next section construction, need demolish, sets up support and template system, need extravagant a large amount of manpowers and time, and personnel's eminence operation is torn open and is set up support and template risk very big, and when the support was demolishd, probably produced the support and falls and hinder people's risk, the stacking and the transportation of materials such as template and full hall support have also increased construction safety risk.

In the prior art, there is also a construction scheme using a suspended inner die, for example, chinese patent document CN108004927A dual-limb triangular cradle and a construction method for a cantilever section of a long-span continuous rigid frame bridge, that is, a traveling system, a main truss, a template system and a lifting system are used, but for a variable cross-section inner cavity, the vertical die assembly of the scheme is complicated, and the efficiency is greatly reduced in the construction stage of the variable cross-section inner cavity. Chinese patent document CN202055183U, the suspension casting arch bridge construction hanging basket adopts a suspension system to connect with the bottom template and the inner template, the front part of the suspension system is connected with a main bearing truss, and a walking track is arranged below the main bearing truss; i.e. the solution of walking the whole suspension, the structure of the load-bearing main girder 3 of this solution is complicated and the structure of the whole suspension is also complicated. Chinese patent document CN107841958A internal mold support frame for suspension casting section of continuous beam and its using method, the scheme of using multiple screw thread adjusting pieces can solve the problem of setting and adjusting the mold plate, the position of the corresponding mold plate is adjusted by adjusting the length of each screw thread adjusting piece, but in this scheme, the number of the screw thread adjusting pieces to be adjusted is large, only the top mold plate part is needed at one adjusting position, i.e. 10 sets of screw thread adjusting pieces are needed, the side mold at least needs 10 sets of screw thread adjusting pieces, and at least 5 adjusting positions are needed along the casting direction, thereby resulting in increased construction difficulty, the requirement for constructors is high, the efficiency is greatly reduced in the construction of variable cross section internal cavity, further, the rigidity of the whole structure is reduced by too many screw thread adjusting pieces, and the later-stage casting quality is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a hang adjustable shaped steel centre form device of basket variable cross section inner chamber and construction method are provided, the shape according to the variable cross section inner chamber adjustment template of bridge that can be convenient improves bridge inner chamber centre form device founds mould efficiency, especially variable cross section inner chamber's centre form device founds mould efficiency by a wide margin.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a hanging basket variable cross-section inner cavity adjustable shaping steel inner mold device comprises an inner mold sliding beam fixed in an inner cavity of a segment to be poured, an inner top pad beam is slidably mounted on the inner mold sliding beam, a first main truss and a second main truss are arranged at two ends of the inner top pad beam, and the first main truss and the second main truss are connected in a mode of adjusting relative positions;

the first main truss is provided with a horizontal top die and a first inclined top die, the horizontal top die is connected with the first inclined top die, and the first inclined top die is connected with the first side die through a hinge point;

and a horizontal top die and a second inclined top die are arranged on the second main truss, the horizontal top die is connected with the second inclined top die, and the second inclined top die is connected with the second side die through a hinge point.

In the preferred scheme, the first inclined top die and the second inclined top die are provided with seam splicing flanges, the first inclined top die and the second inclined top die are respectively connected with the extending section inclined top die through the seam splicing flanges, and the end of the extending section inclined top die is provided with a hinge point;

in the preferred scheme, one end of a first inclined die splicing adjusting screw rod is hinged with the bottom of a first main truss, and the other end of the first inclined die splicing adjusting screw rod is hinged with one end, close to a hinge point, of a first extension section inclined top die;

one end of the second inclined die splicing adjusting screw rod is hinged with the bottom of the second main truss, and the other end of the second inclined die splicing adjusting screw rod is hinged with one end, close to a hinged point, of the second extension section inclined top die.

In the preferred scheme, a seam splicing flange is arranged on the horizontal top die, and the horizontal top die is connected with a seam splicing template through the seam splicing flange;

correspondingly, an adjusting short joint is arranged between the first main truss and the second main truss.

In the preferred scheme, the overlooking of the abutted seam template is triangular, trapezoidal and rectangular;

and adjusting the length of the adjusting short section correspondingly.

In an optimal scheme, a horizontal die splicing adjusting screw rod is further arranged between the first main truss and the second main truss and used for assisting in adjusting the distance between the first main truss and the second main truss.

In the preferred scheme, rollers are arranged at the two sides of the bottom of the inner top pad beam, a seat plate of each roller is fixedly connected with the inner top pad beam in a relative width adjustable mode, guide rails are arranged at the two sides of the top of the inner die sliding beam, guide baffles are fixedly arranged at the two sides of the bottom of the inner top pad beam, which are positioned at the positions of the rollers, and the guide baffles extend to the two sides of the guide rails and are used for providing guide and preventing lateral movement;

the bottoms of the first main truss and the second main truss are in an I shape, a plurality of C-shaped guide clamping plates are fixedly arranged on two sides of the inner top pad beam, the bottoms of the first main truss and the second main truss are positioned in the guide clamping plates, so that the first main truss and the second main truss can move left and right, and the first main truss, the second main truss and the inner top pad beam cannot move back and forth relatively.

In the preferred scheme, a horizontal pull rod penetrating through the outer die and the inner die device is arranged below the inner die sliding beam, a limiting component is arranged at the position of the horizontal pull rod connected with the outer die and the inner die device, and the horizontal pull rod is used for assisting in fixing the positions of the first side die and the second side die;

the limiting assembly comprises a wedge-shaped base plate and a nut;

the device is also provided with a plurality of counter-pull rods, and the counter-pull rods are connected between the outer die and the side die in a direction vertical to the surface of the section to be poured or connected between the side die and the side die;

and a fixed pull rod is arranged between the outer molds at the two sides at the bottom of the outer mold.

In the preferred scheme, one end of the internal mold sliding beam is hung in the inner cavity of the poured segment through a plurality of adjustable suspenders, one end of each adjustable suspender penetrates through the poured segment and is fixedly connected with the poured segment, and the other end of each adjustable suspender penetrates through the internal mold sliding beam and is fixedly connected with the internal mold sliding beam.

A construction method of the adjustable sizing steel internal mold device adopting the hanging basket variable-section inner cavity comprises the following steps:

s1, fixedly mounting an inner die sliding beam, and mounting an inner die device on the inner die sliding beam;

s2, when the internal mold device is installed, the internal top pad beam is installed on the internal mold sliding beam and is positioned;

s3, mounting the first main truss and the second main truss on the inner top pad beam, mounting a plurality of horizontal die splicing adjusting screws, adjusting the distance between the first main truss and the second main truss according to the current position of the section, and correspondingly adjusting the distance between rollers on two sides of the inner top pad beam;

s4, mounting an adjusting short joint between the first main truss and the second main truss through a splicing flange;

installing corresponding splicing templates between horizontal top molds between the first main truss and the top of the second main truss;

s5, fixedly connecting the spot welding of the guide clamping plate with the inner top pad beam, and restraining the front and back positions of the first main truss and the second main truss;

s6, mounting a first inclined die splicing adjusting screw rod on the outer side of the first main truss;

a second inclined die splicing adjusting screw is arranged on the outer side of the second main truss;

connecting a first inclined die splicing adjusting screw rod with a first extending section inclined top die;

connecting a second inclined die splicing adjusting screw rod with a second extending section inclined top die;

fixedly connecting the first inclined top die with the first extension section inclined top die through a seam splicing flange, and adjusting a first inclined die splicing adjusting screw rod to a proper length in the connecting process;

enabling the second inclined top die to pass through the abutted seam flange and the second extending section inclined top die; fixedly connected, and the second inclined die splicing adjusting screw rod is adjusted to a proper length in the connecting process.

S7, hinging the first side die with the end of the first extension section inclined top die through a hinge point;

hinging the second side die with the end of the second extension section inclined top die through a hinging point;

s8, penetrating a horizontal pull rod through the whole external mold and internal mold device, installing and adjusting a limiting assembly at the surface position of each external mold and internal mold, and adjusting the first side mold and the second side mold to proper positions through the limiting assemblies;

s9, installing a counter pull rod and a fixed pull rod, and adjusting the limiting assemblies at the two ends of the fixed pull rod to a proper pulling force;

the vertical formwork construction of the variable cross-section inner cavity is realized through the steps.

The utility model provides a pair of hang adjustable design steel centre form device of basket variable cross section inner chamber cuts apart into about arranging through the adoption main truss and the scheme of distance adjustable between the main truss, has realized the centre form device that has higher rigidity, and the shape according to variable cross section inner chamber adjustment template that can be convenient, and the efficiency of construction promotes by a wide margin. The higher structural rigidity can reduce the dead weight of the structure, reduce the adjusting times, ensure the subsequent pouring construction quality and reduce or even avoid the construction defects of slab staggering, pitted surface and the like. The utility model discloses can minimize the regulation number of times in variable cross section inner chamber work progress, and overall structure has higher rigidity, can reduce the deformation of whole inner membrance device, improves pouring quality.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a cross-sectional view of a standard segment according to the present invention.

Fig. 2 is a schematic view of the middle limiting component according to the present invention.

Fig. 3 is a schematic cross-sectional view of the largest segment in the present invention.

Fig. 4 is a schematic side view of the present invention.

Fig. 5 is a partially enlarged schematic view of a portion B in fig. 1.

Fig. 6 is a schematic sectional view a-a of fig. 5.

Fig. 7 is a side view of the form of the present invention.

Fig. 8 is a schematic top view of the first segment cavity template.

FIG. 9 is a top view of a standard segment cavity template.

Fig. 10 is a schematic top view of a tapered segment cavity template.

In the figure: the internal mold device 1, a horizontal top mold 101, a first inclined top mold 102, a second inclined top mold 103, a second side mold 104, a first side mold 105, an internal mold sliding beam 2, a guide rail 201, an internal top pad beam 3, a roller 4, a guide baffle 41, a horizontal pull rod 5, a limiting component 51, a nut 511, a gasket 512, a wedge-shaped base plate 513, a standard section first-pouring section 6, an external mold 7, a counter-pull rod 8, a fixed pull rod 9, a widening section 10, a splicing template 11, a first inclined splicing mold adjusting screw 12, a horizontal splicing mold adjusting screw 13, a first main truss 14, a second main truss 15, a splicing flange 16, a hinge point 17, an adjustable suspender 18, an adjusting short section 19, a guide clamping plate 20, a second extending section inclined top mold 21, a second inclined splicing mold adjusting screw 22, a first extending section inclined top mold 23 and an inter-pin connecting flange 24.

Detailed Description

Example 1:

as shown in fig. 1 to 10, the adjustable sizing steel internal mold device for the variable cross-section inner cavity of the hanging basket comprises an internal mold sliding beam 2 fixed to the inner cavity of a section to be poured, an internal top pad beam 3 is slidably mounted on the internal mold sliding beam 2, a first main truss 14 and a second main truss 15 are arranged at two ends of the internal top pad beam 3, and the first main truss 14 and the second main truss 15 are connected in an adjustable relative position manner;

a horizontal top die 101 and a first inclined top die 102 are arranged on the first main truss 14, the horizontal top die 101 is connected with the first inclined top die 102, and the first inclined top die 102 is connected with a first side die 105 through a hinge point 17;

and a horizontal top die 101 and a second inclined top die 103 are arranged on the second main truss 15, the horizontal top die 101 is connected with the second inclined top die 103, and the second inclined top die 103 is connected with a second side die 104 through a hinge point 17. By the structure, the horizontal top die and the inclined top die are directly arranged on the main truss, and the rigidity of the whole structure is ensured. By adopting the scheme of adjusting the distance between the two main trusses, an adjusting screw rod is not arranged between the side mold and the truss, so that the workload of on-site adjustment is greatly reduced.

In a preferred scheme, as shown in fig. 1 and 3, a first inclined top die 102 and a second inclined top die 103 are provided with a seam flange 16, the first inclined top die 102 and the second inclined top die 103 are respectively connected with an extension inclined top die through the seam flange 16, and the end of the extension inclined top die is provided with a hinge point 17;

in a preferred scheme, as shown in fig. 1 and 3, one end of a first inclined die assembling adjusting screw 12 is hinged with the bottom of a first main truss 14, and the other end is hinged with one end, close to a hinge point 17, of a first extension inclined top die 23;

one end of the second inclined die-splicing adjusting screw 22 is hinged with the bottom of the second main truss 15, and the other end is hinged with one end of the second extension inclined top die 21 close to the hinge point 17. From this structure, the extension slope cope match that additionally sets up can be convenient for slope cope match and the side form between the fine setting, and the cooperation slope is pieced together mould adjusting screw and is also convenient for assemble and adjust, and at the in-process of installation extension slope cope match, the slope is pieced together mould adjusting screw and is played the effect of supporting and fine setting.

In a preferred scheme, as shown in fig. 1 and 3, a seam splicing flange 16 is arranged on a horizontal top die 101, and the horizontal top die 101 is connected with a seam splicing template 11 through the seam splicing flange 16; in this example, the first main girder 14 and the second main girder 15 have different structural sizes, and the horizontal top mold 101 is located between the horizontal top molds 101 of the first main girder 14 and the second main girder 15.

Correspondingly, an adjusting nipple 19 is arranged between the first main truss 14 and the second main truss 15. With this structure, the distance between the first main girder 14 and the second main girder 15 is fixed accordingly.

The preferable scheme is as shown in fig. 8-10, the overlooking of the abutted seam template 11 is triangular, trapezoidal and rectangular;

the length of the adjusting short section 19 is correspondingly adjusted according to the width of the splicing seam template 11. The adjusting short joint 19 is also connected with the first main truss 14 and the second main truss 15 through a splicing flange 16.

In a preferred embodiment, as shown in fig. 3, a horizontal die-splicing adjusting screw 13 is further disposed between the first main truss 14 and the second main truss 15, and is used for assisting in adjusting the distance between the first main truss 14 and the second main truss 15. The horizontal die-splicing adjusting screw 13 is mainly used for initially adjusting the distance between the first main truss 14 and the second main truss 15, and after the adjusting short section 19 is installed, the horizontal die-splicing adjusting screw 13 can be removed.

In a preferred scheme, as shown in fig. 1, 3 and 4, rollers 4 are arranged at two sides of the bottom of an inner top pad beam 3, seat plates of the rollers 4 are fixedly connected with the inner top pad beam 3 in a mode of adjusting relative width, in the preferred scheme, slotted holes are formed in the seat plates of the rollers 4, through holes in an array are formed in the inner top pad beam 3, and bolts penetrate through the slotted holes and are fixedly connected with the appropriate through holes. The approximate position of the seat plate of the roller 4 is adjusted through the through holes of the array, and the precise position of the seat plate of the roller 4 is finely adjusted by adjusting the position of the bolt in the slotted hole so as to adapt to the change of the distance between the first main truss 14 and the second main truss 15 and enable the roller 4 to always fall on the guide rail 201. Guide rails 201 are arranged on two sides of the top of the inner die sliding beam 2, guide baffles 41 are fixedly arranged on two sides of the bottom of the inner top pad beam 3 at the position of the roller 4, and the guide baffles 41 extend to two sides of the guide rails 201 and are used for providing guidance and preventing lateral movement;

the bottoms of the first main truss 14 and the second main truss 15 are in an I shape, a plurality of C-shaped guide clamping plates 20 are fixedly arranged on two sides of the inner top pad beam 3, the bottoms of the first main truss 14 and the second main truss 15 are positioned in the guide clamping plates 20, so that the first main truss 14 and the second main truss 15 can move left and right, and the first main truss 14, the second main truss 15 and the inner top pad beam 3 are limited by the guide clamping plates 20 and cannot move front and back relatively.

In a preferred scheme, as shown in fig. 1, a horizontal pull rod 5 penetrating through an outer die 7 and an inner die device 1 is arranged below an inner die sliding beam 2, a position of the horizontal pull rod 5 connected with the outer die 7 and the inner die device 1 is provided with a limiting component 51, and the horizontal pull rod 5 is used for assisting in fixing the positions of a first side die 105 and a second side die 104; the structure of the penetrating horizontal pull rod 5 is adopted, so that the positions of the first side mold 105 and the second side mold 104 can be quickly positioned through less adjustment, and the construction efficiency is greatly improved.

As shown in fig. 2, the limiting assembly 51 comprises a wedge-shaped backing plate 513, a washer 512 and a nut 511; a wedge-shaped pad 513 is provided to make the surface of the pad 512 perpendicular to the horizontal stay 5.

A plurality of counter-pull rods 8 are further arranged, and the counter-pull rods 8 are connected between the outer die 7 and the side die or between the side die and the side die in a direction approximately vertical to the surface of the segment to be poured; as shown in fig. 1, the counter-pull rod 8 is used to precisely fix the positions of the first side mold 105 and the second side mold 104.

And a fixed pull rod 9 is also arranged between the outer molds 7 at the two sides at the bottom position of the outer mold 7. Thereby, the outer molds 7 on both sides are tightened.

Preferably, as shown in fig. 4, one end of the inner mold sliding beam 2 is hung in the cavity of the poured segment through a plurality of adjustable suspenders 18, one end of each adjustable suspender 18 passes through the poured segment and is fixedly connected with the poured segment, and the other end of each adjustable suspender 18 passes through the inner mold sliding beam 2 and is fixedly connected with the inner mold sliding beam 2. With this structure, the inner die slide beam 2 is fixedly mounted.

Example 2:

a construction method of the adjustable sizing steel internal mold device adopting the hanging basket variable-section inner cavity comprises the following steps:

s1, as shown in fig. 4, the adjustable suspension rod 18 is used to fixedly mount the inner mold sliding beam 2, the inner mold sliding beam 2 is suspended and mounted on the poured segment, the outer mold of the poured segment adjacent to the segment to be poured is not removed temporarily, and is used as the mounting base of the outer mold of the segment to be poured, and the inner mold device 1 is mounted on the inner mold sliding beam 2;

s2, when the internal mold device 1 is installed, the roller 4 of the internal top pad beam 3 is installed on the internal mold sliding beam 2 and is positioned;

s3, installing the first main truss 14 and the second main truss 15 on the inner top pad beam 3, installing a plurality of horizontal die splicing adjusting screws 13 along the length direction of the first main truss 14 and the second main truss 15, adjusting the distance between the first main truss 14 and the second main truss 15 according to the current position of the section, and correspondingly adjusting the distance between the rollers 4 on the two sides of the inner top pad beam 3; the seat plate of the roller 4 is fixedly connected with the inner top pad beam 3 in a mode of adjusting relative width, in the preferred scheme, a slotted hole is formed in the seat plate of the roller 4, through holes in an array are formed in the inner top pad beam 3, and a bolt penetrates through the slotted hole and is fixedly connected with a proper through hole. The approximate position of the seat plate of the roller 4 is adjusted through the through holes of the array, and the precise position of the seat plate of the roller 4 is finely adjusted by adjusting the position of the bolt in the slotted hole so as to adapt to the change of the distance between the first main truss 14 and the second main truss 15 and enable the roller 4 to always fall on the guide rail 201.

S4, installing an adjusting short joint 19 between the first main truss 14 and the second main truss 15 through a splicing flange 16;

installing a corresponding splicing formwork 11 between the horizontal top molds 101 between the tops of the first main truss 14 and the second main truss 15; as shown in FIGS. 8-10, the patchwork forms 11 of different segments have different shapes, such as triangular, rectangular, or trapezoidal, depending on the shape of the transition.

S5, as shown in figure 6, fixedly connecting the guide clamping plate 20 with the inner top pad beam 3 through spot welding on site, and restraining the front and back positions of the first main truss 14 and the second main truss 15;

s6, mounting a first inclined die-splicing adjusting screw rod 12 on the outer side of the first main truss 14;

a second inclined die splicing adjusting screw 22 is arranged on the outer side of the second main truss 15; the lengths of the first inclined split adjusting screw 12 and the second inclined split adjusting screw 22 are preset according to design requirements.

Connecting the first inclined die splicing adjusting screw 12 with a first extension section inclined top die 23;

connecting a second inclined die splicing adjusting screw 22 with a second extension section inclined top die 21;

fixedly connecting the first inclined top die 102 with the first extension section inclined top die 23 through the seam splicing flange 16, and adjusting the first inclined top die adjusting screw 12 to a proper length in the connecting process;

a second inclined top die 103 is arranged on the second extending section inclined top die 21 through the seam splicing flange 16; fixedly connected, and the second inclined die-splicing adjusting screw 22 is adjusted to a proper length in the connecting process. During the installation process, the lengths of the first inclined split die adjusting screw 12 and the second inclined split die adjusting screw 22 are continuously adjusted to the design requirement.

S7, hinging the first side die 105 with the end of the first extension inclined top die 23 through a hinge point 17;

the second side die 104 is hinged with the end of the second extension inclined top die 21 through a hinge point 17; fig. 7 is a side view of the side mold, and the side mold is usually divided into two roof trusses, and the roof trusses are fixedly connected to each other by an inter-truss connecting flange 24.

S8, as in fig. 1, passing the horizontal tie bar 5 through the entire outer die 7 and inner die assembly 1, installing and adjusting a stop assembly 51 at the location of each outer die 7 and inner die surface, adjusting the first side die 105 and second side die 104 to the appropriate position by the stop assembly;

s9, installing a counter-pull rod 8 and a fixed pull rod 9, and adjusting the limiting assemblies 51 at the two ends of the fixed pull rod 9 to a proper pulling force;

the vertical formwork construction of the variable cross-section inner cavity is realized through the steps.

The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims (10)

1. The utility model provides a hang adjustable design steel centre form device of basket variable cross section inner chamber, is including fixing centre form sliding beam (2) at treating the pouring segment inner chamber, characterized by: the inner top pad beam (3) is slidably mounted on the inner die sliding beam (2), a first main truss (14) and a second main truss (15) are arranged at two ends of the inner top pad beam (3), and the first main truss (14) is connected with the second main truss (15) in a mode of adjusting relative positions;

a horizontal top die (101) and a first inclined top die (102) are arranged on the first main truss (14), the horizontal top die (101) is connected with the first inclined top die (102), and the first inclined top die (102) is connected with a first side die (105) through a hinge point (17);

the second main truss (15) is provided with a horizontal top die (101) and a second inclined top die (103), the horizontal top die (101) is connected with the second inclined top die (103), and the second inclined top die (103) is connected with the second side die (104) through a hinge point (17).

2. The adjustable sizing steel inner die device for the variable cross-section inner cavity of the hanging basket according to claim 1, which is characterized in that: be equipped with splice flange (16) at first slope top mould (102) and second slope top mould (103), first slope top mould (102) and second slope top mould (103) are connected with extension slope top mould through splice flange (16) respectively, and the end of extension slope top mould is equipped with pin joint (17).

3. The adjustable sizing steel inner die device for the variable cross-section inner cavity of the hanging basket according to claim 2, which is characterized in that: one end of a first inclined die splicing adjusting screw rod (12) is hinged with the bottom of the first main truss (14), and the other end of the first inclined die splicing adjusting screw rod is hinged with one end, close to a hinge point (17), of the first extension section inclined top die (23);

one end of a second inclined die splicing adjusting screw rod (22) is hinged with the bottom of the second main truss (15), and the other end of the second inclined die splicing adjusting screw rod is hinged with one end, close to a hinge point (17), of the second extension section inclined top die (21).

4. The adjustable sizing steel inner die device for the variable cross-section inner cavity of the hanging basket according to claim 1, which is characterized in that: the horizontal top die (101) is provided with a seam splicing flange (16), and the horizontal top die (101) is connected with a seam splicing template (11) through the seam splicing flange (16);

correspondingly, an adjusting short joint (19) is arranged between the first main truss (14) and the second main truss (15).

5. The adjustable sizing steel inner die device for the variable cross-section inner cavity of the hanging basket according to claim 4, which is characterized in that: the overlooking of the abutted seam template (11) is triangular, trapezoidal and rectangular;

the length of the adjusting short joint (19) is correspondingly adjusted.

6. The adjustable sizing steel inner die device for the variable cross-section inner cavity of the hanging basket according to claim 5, which is characterized in that: and a horizontal die splicing adjusting screw rod (13) is further arranged between the first main truss (14) and the second main truss (15) and is used for assisting in adjusting the distance between the first main truss (14) and the second main truss (15).

7. The adjustable sizing steel inner die device for the variable cross-section inner cavity of the hanging basket according to claim 1, which is characterized in that: the two sides of the bottom of the inner top pad beam (3) are provided with rollers (4), seat plates of the rollers (4) are fixedly connected with the inner top pad beam (3) in a relative width adjustable mode, guide rails (201) are arranged on the two sides of the top of the inner die sliding beam (2), guide baffles (41) are fixedly arranged on the two sides of the bottom of the inner top pad beam (3) located at the positions of the rollers (4), and the guide baffles (41) extend to the two sides of the guide rails (201) and are used for guiding and preventing lateral movement;

the bottom parts of the first main truss (14) and the second main truss (15) are I-shaped, a plurality of C-shaped guide clamping plates (20) are fixedly arranged on two sides of the inner top pad beam (3), the bottom parts of the first main truss (14) and the second main truss (15) are positioned in the guide clamping plates (20), so that the first main truss (14) and the second main truss (15) can move left and right, and the first main truss (14), the second main truss (15) and the inner top pad beam (3) cannot move front and back relatively.

8. The adjustable sizing steel inner die device for the variable cross-section inner cavity of the hanging basket according to claim 1, which is characterized in that: a horizontal pull rod (5) penetrating through the outer die (7) and the inner die device (1) is arranged below the inner die sliding beam (2), a limiting component (51) is arranged at the position where the horizontal pull rod (5) is connected with the outer die (7) and the inner die device (1), and the horizontal pull rod (5) is used for assisting in fixing the positions of the first side die (105) and the second side die (104);

the limiting assembly (51) comprises a wedge-shaped base plate (513) and a nut (511).

9. The adjustable sizing steel inner die device for the variable cross-section inner cavity of the hanging basket according to claim 8, which is characterized in that: the casting mould is also provided with a plurality of counter-pull rods (8), and the counter-pull rods (8) are connected between the outer mould (7) and the side mould or between the side mould and the side mould in a direction vertical to the surface of the segment to be cast;

and a fixed pull rod (9) is also arranged between the outer molds (7) at the two sides at the bottom position of the outer mold (7).

10. The adjustable sizing steel inner die device for the variable cross-section inner cavity of the hanging basket according to any one of claims 1 to 9, which is characterized in that: one end of the internal mold sliding beam (2) is hung in the inner cavity of the poured segment through a plurality of adjustable hanging rods (18), one end of each adjustable hanging rod (18) penetrates through the poured segment and is fixedly connected with the poured segment, and the other end of each adjustable hanging rod (18) penetrates through the internal mold sliding beam (2) and is fixedly connected with the internal mold sliding beam (2).

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