CN214604987U

CN214604987U - Prefabricated rail top air duct plate mold

Info

Publication number: CN214604987U
Application number: CN202120312750.8U
Authority: CN
Inventors: 邓彬; 肖祖成; 班小帅
Original assignee: Shanghai Jiaocheng Construction Mould Co ltd
Current assignee: Shanghai Jiaocheng Construction Mould Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-11-05
Anticipated expiration: 2031-02-03

Abstract

The utility model belongs to the technical field of prefabricated component shaping technique and specifically relates to a prefabricated rail top wind channel plate mould is related to, including base and template subassembly, the template subassembly includes outer template subassembly, interior template subassembly and end template subassembly, interior template subassembly is located outer template subassembly, and between first interior template and the first outer template, leave the interval space between second interior template and the second outer template, the end template subassembly includes first end template and second end template, be equipped with first die block board and second die block board on the base, establish first upset template between first interior template and the first die block board, establish second upset template between second interior template and the second die block board, outer template subassembly, first die block board, the second die block board, first upset template, second upset template, enclose jointly between interior template subassembly and the end template subassembly and form the open die cavity in top. This application has the convenience and tears the form open, improves tear the form open efficiency, reduces personnel's input, reduces human cost's effect.

Description

Prefabricated rail top air duct plate mold

Technical Field

The application relates to the technical field of prefabricated part forming, in particular to a prefabricated rail top air duct plate mold.

Background

The rail top air duct, namely the train top exhaust duct, is an important internal structural component in a ventilation system of a subway station and is suspended at the joint position of a middle plate and a structural side wall of the station. Because of the particularity of the position of the air duct, the air duct is generally not poured simultaneously with a main body of a station, and particularly, the air duct at the top of the rail must be poured at the later stage at the station which needs to be passed by shield construction.

The rail top air duct is divided into a cast-in-place reinforced concrete rail top air duct and a prefabricated air duct, and the cast-in-place construction method is mainly adopted in China in the past. With the high-speed development of assembly type buildings, at present, a prefabricated air duct plate mode is adopted more and more.

Aiming at the related technologies, the inventor thinks that the mould of the prefabricated air duct plate is a large-scale mould because the prefabricated air duct plate is a large-scale component, and when the mould is disassembled, a large amount of manpower is needed to participate, so that the time and the labor are wasted, the mould disassembling efficiency is low, and the production progress is influenced.

SUMMERY OF THE UTILITY MODEL

In order to carry out the form removal in convenience, improve form removal efficiency, reduce personnel's input, reduce the human cost, this application provides a prefabricated rail top wind channel board mould.

The application provides a prefabricated rail top wind channel board mould adopts following technical scheme:

a prefabricated rail top air duct plate mold comprises a base and a template assembly arranged on the base, wherein the template assembly comprises an outer template assembly connected to the base in a sliding manner, an inner template assembly arranged on the base in a telescopic deformation manner and an end template assembly, the outer template assembly comprises a first outer template and a second outer template connected to the base in a sliding manner along the length direction, the inner template assembly comprises a first inner template and a second inner template which are symmetrically arranged on two sides of the length direction of the base and can be deformed in a telescopic manner and a third inner template which is positioned between the first inner template and the second inner template and can lift along the height direction of the base, the first inner template and the second inner template are positioned between the first outer template and the second outer template, and space is reserved between the first inner template and the first outer template and between the second inner template and the second outer template, the end formwork assembly comprises a first end formwork and a second end formwork which are symmetrically arranged on two sides of the base in the width direction, a first bottom formwork used for supporting the first inner formwork and a second bottom formwork used for supporting the second inner formwork are respectively arranged on the base along two sides of the length direction, a first overturning formwork is arranged between the first inner formwork and the first bottom formwork, a second overturning formwork is arranged between the second inner formwork and the second bottom formwork, and an open-top die cavity is formed by enclosing the outer formwork assembly, the first bottom formwork, the second bottom formwork, the first overturning formwork, the second overturning formwork, the inner formwork assembly and the end formwork assembly together.

By adopting the technical scheme, when the formwork is removed, the third inner formwork descends firstly, the third inner formwork is separated from the first inner formwork and the second inner formwork, a shrinkage deformation space is formed between the first inner formwork and the second inner formwork, meanwhile, the first overturning formwork and the second overturning formwork are overturned inwards simultaneously, and a shrinkage deformation space is formed between each inner formwork and the corresponding bottom formwork, so that the first inner formwork and the second inner formwork are deformed in an inwards shrinkage mode, the inner formwork component is separated from the prefabricated rail top air duct plate, then the outer formwork component is slid, the outer formwork component is separated, and finally the end formwork component is detached, and the whole formwork can be removed. Therefore, the form removal device not only is convenient to remove the form, can obviously improve the form removal efficiency, but also can reduce the personnel investment and reduce the labor cost.

Optionally, a first moving platform used for driving the first outer template to move and a second moving platform used for driving the second outer template to move are respectively arranged on the base along the two sides of the length direction, one sides of the first moving platform and the second moving platform are respectively connected and fixed to the outer sides of the corresponding outer templates, first pulleys are respectively arranged at the bottoms of the first moving platform and the second moving platform, and sliding chutes in sliding fit with the first pulleys are formed in the base.

Through adopting above-mentioned technical scheme, only need push first moving platform and second moving platform outwards open, can accomplish the form removal of outer formwork component, labour saving and time saving has improved form removal efficiency.

Optionally, the first mobile platform and the second mobile platform are respectively provided with an overhaul assembly, the overhaul assembly comprises an overhaul platform, a ladder stand and a guard rail, one side of the overhaul platform is fixed on the upper portion of the corresponding mobile platform, the guard rail is fixed on the other side of the overhaul platform, and the ladder stand is fixed on one side of the overhaul platform.

Through adopting above-mentioned technical scheme, make things convenient for installer to install and remove the mould, and through setting up the rail guard. The safety performance is improved, and the possibility of danger of installation personnel in the process of assembling and disassembling the die is reduced.

Optionally, a counter-pulling mechanism for tensioning the first outer formwork and the second outer formwork is arranged between the tops of the first outer formwork and the second outer formwork.

By adopting the technical scheme, the outer die plate component is installed, tensioned and fixed, and the integral connection strength after die assembly is improved.

Optionally, be provided with the adjustment mechanism who is used for controlling the flexible deformation of inner formword subassembly on the base, adjustment mechanism includes the support frame, is used for controlling the lifting unit that the third inner formword goes up and down, is used for controlling the flexible subassembly of first inner formword and second inner formword synchronous motion and is used for controlling first upset template and second upset template pivoted upset subassembly, the support frame is fixed in on the base and is located between first inner formword and the second inner formword, lifting unit sets up on the support frame along vertical direction, flexible subassembly sets up on the support frame, the upset subassembly is located flexible subassembly below.

By adopting the technical scheme, installation personnel can conveniently enter the inner formwork component for operation and control by arranging the supporting frame; realize the lift of third inner formword through setting up lifting unit, realize the upset to the upset template through setting up the upset subassembly, realize the shrink of first inner formword and second inner formword through setting up flexible subassembly to make the inner formword subassembly shrink back and break away from with prefabricated rail top wind channel board, labour saving and time saving has reduced the drawing of patterns degree of difficulty, has promoted drawing of patterns efficiency, has reduced personnel's input, the cost is reduced.

Optionally, the lifting assembly comprises a lifting screw and an outer sleeve, one end of the lifting screw is fixedly connected to the inner wall of the third inner template, the other end of the lifting screw penetrates through the outer sleeve and is located in the support frame at the rear suspension position, the outer sleeve is fixed on the support frame, a through hole for the lifting screw to pass through is formed in the outer sleeve along the axial direction, and an inner thread matched with the lifting screw is formed in the inner wall of the through hole.

Through adopting above-mentioned technical scheme, can realize the lift of third inner formword through rotating the lifting screw, convenient operation.

Optionally, flexible subassembly is including sliding seat, guide rail and first bidirectional screw, the top of first inner formword and second inner formword is fixedly connected with sliding seat respectively, and the one side that the corresponding inner formword was kept away from to each sliding seat is provided with the second pulley respectively, the support frame both sides are equipped with the guide holder respectively, and the slope is provided with the guide rail respectively on each guide holder, each guide rail respectively with the second pulley sliding fit that corresponds, the one end that the guide rail is close to the inner formword is high-end, and the one end that the inner formword was kept away from to the guide rail is the low side, on first bidirectional screw was fixed in the support frame along the horizontal direction, the both ends of first bidirectional screw were connected with the sliding seat that corresponds respectively.

By adopting the technical scheme, the sliding seat slides downwards by rotating the first bidirectional screw rod, so that the first inner template and the second inner template are driven to contract inwards, and the contraction deformation of the inner template assembly is realized.

Optionally, a yielding opening for yielding the guide seat is formed in one surface, away from the inner side template, of the sliding seat.

Through adopting above-mentioned technical scheme, make between guide holder and the seat that slides can carry out mutual restraint, direction and location, use safe and reliable.

Optionally, the turning assembly includes a second bidirectional screw rod, two ends of the second bidirectional screw rod are respectively hinged to the tops of the corresponding turning templates, and the bottoms of the turning templates are respectively hinged to the corresponding bottom templates.

By adopting the technical scheme, the second bidirectional screw rod is rotated to drive each overturning template to rotate inwards, so that a contraction deformation space is formed between each inner template and the corresponding bottom template, and the first inner template and the second inner template are convenient to contract and deform inwards.

Optionally, a joint surface between each of the turnover forms and the corresponding inner form is an inclined surface, and a concave cavity is formed in the joint surface between each of the turnover forms and the corresponding bottom form and is communicated with the mold cavity.

Through adopting above-mentioned technical scheme, the upset template of being convenient for overturns, and through setting up the cavity, both can realize processing required bellying on prefabricated rail top wind channel plate, can form the draft inclination again, the drawing of patterns operation of being convenient for.

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

1. the mold removing method and the mold removing device have the advantages that the mold removing is convenient, the mold removing efficiency can be obviously improved, the personnel investment can be reduced, and the labor cost is reduced;

2. by arranging the mobile platform, the external template assembly is convenient to remove;

3. through setting up lifting unit, flexible subassembly and upset subassembly, can tear the form fast open the mould to the inner formword subassembly, further improved the efficiency of tearing the form, reduced personnel's input.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic view of a mold clamping state of an embodiment of the present application;

fig. 3 is a schematic view of an open state in the embodiment of the present application.

Description of reference numerals: 1. a base; 11. a first bottom form; 12. a second bottom form; 13. a first mobile platform; 131. a first pulley of the first mobile platform; 132. a first service assembly; 1321. a first service platform; 1322. a first ladder stand; 1323. a first guard rail; 14. a second mobile platform; 141. a first pulley of a second mobile platform; 142. a second service assembly; 1421. a second service platform; 1422. a second ladder stand; 1423. a second guard rail; 2. an outer formwork assembly; 21. a first outer template; 22. a second outer template; 3. an inner formwork assembly; 31. a first inner template; 32. a second inner template; 33. a third inner template; 34. a first flipping form; 35. a second turning template; 4. an end formwork assembly; 41. a first end form; 42. a second end template; 5. a counter-pulling mechanism; 6. a support frame; 61. a guide seat; 7. a lifting assembly; 71. a lifting screw; 72. an outer sleeve; 8. a telescoping assembly; 81. a sliding seat; 811. a second pulley; 82. a guide rail; 83. a first bidirectional lead screw; 9. and (5) overturning the assembly.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses prefabricated rail top air duct plate mould. Referring to fig. 1 and 2, the mold comprises a base 1 and a template assembly arranged on the base 1, wherein the template assembly comprises an outer template assembly 2 connected to the base 1 in a sliding manner, an inner template assembly 3 arranged on the base 1 in a telescopic and deformable manner, and an end template assembly 4. Wherein the outer template component 2 comprises a first outer template 21 and a second outer template 22 which are connected to the base 1 in a sliding manner along the length direction, the inner template component 3 comprises a first inner template 31 and a second inner template 32 which are symmetrically arranged at two sides of the base 1 in the length direction and can be deformed in a telescopic manner, and a third inner template 33 which is positioned between the first inner template 31 and the second inner template 32 and can be lifted along the height direction of the base 1, the first inner template 31 and the second inner template 32 are positioned between the first outer template 21 and the second outer template 22, a spacing space is reserved between the first inner template 31 and the first outer template 21 and between the second inner template 32 and the second outer template 22, the end template component 4 comprises a first end template 41 and a second end template 42 which are symmetrically arranged at two sides of the base 1 in the width direction, a first bottom template 11 for supporting the first inner template 31 and a second bottom template 12 for supporting the second inner template 32 are respectively arranged at two sides of the base 1 in the length direction, a first overturning template 34 is arranged between the first inner template 31 and the first bottom template 11, a second overturning template 35 is arranged between the second inner template 32 and the second bottom template 12, and the outer template assembly 2, the first bottom template 11, the second bottom template 12, the first overturning template 34, the second overturning template 35, the inner template assembly 3 and the end template assembly 4 jointly enclose to form a mold cavity with an open top. In the embodiment, the first end template 41 and the second end template 42 are fixed on the base 1 through bolts; the base 1 is a cuboid frame structure formed by welding a plurality of longitudinal beams and a plurality of cross beams, and the longitudinal beams and the cross beams can be made of I-steel; the first bottom template 11 and the second bottom template 12 are respectively fixed on a cross beam close to the middle part of the base 1 through bolts.

When the formwork is disassembled, the third inner formwork 33 is firstly descended, the third inner formwork 33 is separated from the first inner formwork 31 and the second inner formwork 32, a shrinkage deformation space is formed between the first inner formwork 31 and the second inner formwork 32, meanwhile, the first overturning formwork 34 and the second overturning formwork 35 are simultaneously inwards overturned, a shrinkage deformation space is formed between each inner formwork and the corresponding bottom formwork, so that the first inner formwork 31 and the second inner formwork 32 are inwards shrunk and deformed, the separation of the inner formwork assembly 3 and the prefabricated rail top air duct plate is realized, then the outer formwork assembly 2 is slid, the outer formwork assembly 2 is separated, and finally, the end formwork assembly 4 is disassembled, so that the whole formwork can be disassembled.

Referring to fig. 2 and 3, a first moving platform 13 for driving a first outer template 21 to move and a second moving platform 14 for driving a second outer template 22 to move are respectively arranged on two sides of the base 1 along the length direction, one sides of the first moving platform 13 and the second moving platform 14 are respectively connected and fixed to the outer sides of the corresponding outer templates,

first pulleys

131 and 141 are respectively installed at the bottoms of the first moving platform 13 and the second moving platform 14, a sliding chute which is in sliding fit with the

first pulleys

131 and 141 is arranged on the base 1, and the sliding chute is one of inner cavities of a base longitudinal beam in the embodiment; the

first pulleys

131, 141 may be provided in four groups of two, and the two

first pulleys

131, 141 of each group are spaced apart along the length direction of the base to improve sliding efficiency and stability.

Referring to fig. 2 and 3, the first moving platform 13 and the second moving platform 14 are respectively provided with a maintenance component, that is, a first maintenance component 132 and a second maintenance component 142, the first maintenance component 132 includes a first maintenance platform 1321, a first ladder 1322 and a first guard rail 1323, the second maintenance component 142 includes a second maintenance platform 1421, a second ladder 1422 and a second guard rail 1423, one side of each maintenance platform is fixed on the upper portion of the corresponding moving platform, each guard rail is respectively fixed on the other side of the corresponding maintenance platform, each ladder is fixed on one side of the maintenance platform, and

ladders

1322 and 1422 are respectively formed on two sides of each moving platform in the width direction of the base.

Refer to fig. 2 and fig. 3, be provided with between first exterior sheathing 21 and the top of second exterior sheathing 22 and be used for the tensioning mechanism 5 of drawing of first exterior sheathing 21 and second exterior sheathing 22, in this embodiment draw mechanism 5 including the counter-pulling screw rod, connect channel-section steel and lock nut, connect on the outer wall on channel-section steel welded fastening in exterior sheathing upper portion, and connect the channel-section steel lower extreme and lean on in overhauing the platform, it is equipped with the mounting hole that supplies to the counter-pulling screw rod to pass to connect the channel-section steel upper end, wear to locate in the mounting hole of the corresponding connection channel-section steel respectively to the counter-pulling screw rod both ends, and it is fixed through lock nut locking, in order to realize the taut fixing of installation of exterior sheathing subassembly 2, whole joint strength behind the compound die is improved.

Referring to fig. 2 and 3, be provided with the adjustment mechanism who is used for controlling the flexible deformation of inner formword subassembly 3 on the base 1, adjustment mechanism includes support frame 6, a lifting unit 7 for controlling the lift of third inner formword 33, a flexible subassembly 8 for controlling first inner formword 31 and second inner formword 32 synchronous motion and be used for controlling first upset template 34 and second upset template 35 pivoted upset subassembly 9, support frame 6 is fixed in on the base 1 and is located between first inner formword 31 and the second inner formword 32, lifting unit 7 sets up on support frame 6 along vertical direction, flexible subassembly 8 sets up on support frame 6, upset subassembly 9 is located flexible subassembly 8 below. Support frame 6 includes two rows of stands in this embodiment, two rows of stand symmetries set up, every row of stand is three groups, every three equidistant welded fastening of stand of every row is on the crossbeam at base 1 middle part, every group stand is two, leave clearance space between two stands of every group, every three group stand upper end welded fastening of every row have a horizontal spliced pole, first group stand of first row and second row are located between the first group stand of homonymy, first group stand of third group and second row are located respectively welded fastening between the third group stand of homonymy have a set of vertical support column, every group vertical support column is two, two vertical support columns of every group set up along stand axial interval, the both ends of each vertical support column welded fastening respectively between two stands of every group.

Referring to fig. 2 and 3, the lifting assembly 7 includes a lifting screw 71 and an outer sleeve 72, one end of the lifting screw 71 is fixedly connected to the third inner mold plate 33, the other end of the lifting screw 71 passes through the outer sleeve 72 and is suspended in the support frame 6, the outer sleeve 72 is fixed to the support frame 6, a through hole for the lifting screw 71 to pass through is axially formed in the outer sleeve 72, and an internal thread matched with the lifting screw 71 is formed on the inner wall of the through hole. In this embodiment, the third template 33 is welded and fixed with a connecting seat, and the lifting screw 71 is arranged on the connecting seat in a penetrating way and is fixedly connected with the connecting seat through a nut; the outer sleeve 72 is fixed on the outer side of the longitudinal support column in a welding manner, and the lifting screw 71 is rotated to enable the lifting screw 71 to ascend or descend along the axial direction of the outer sleeve 72, so that the third inner template 33 is driven to ascend or descend.

Referring to fig. 2 and 3, the telescopic assembly 8 includes a sliding seat 81, a guide rail 82 and a first bidirectional screw 83, the sliding seats 81 are respectively fixedly connected to the tops of the first inner formwork 31 and the second inner formwork 32 through bolts, a second pulley 811 is respectively installed on one surface of each sliding seat 81 far away from the corresponding inner formwork, guide seats 61 are respectively arranged on two sides of the support frame 6, the guide rail 82 is respectively obliquely arranged on each guide seat 61, each guide rail 82 is respectively in sliding fit with the corresponding second pulley 811, one end of each guide rail 82 close to the inner formwork is a high end, one end of each guide rail 82 far away from the inner formwork is a low end, the first bidirectional screw 83 is fixed on the support frame 6 along the horizontal direction, and two ends of the first bidirectional screw 83 are respectively connected with the corresponding sliding seats 81. In the embodiment, the upper part and the bottom of the sliding seat 81 are respectively provided with a second pulley 811, the number of the guide seats 61 corresponds to that of the second pulleys 811 one by one, the guide seats 61 are welded and fixed at the end parts of the longitudinal support columns, the top surfaces of the guide seats are inclined planes, the guide rails 82 are welded and fixed at the top surfaces of the guide seats 61, and the guide rails 82 are in sliding connection with the wheel grooves of the second pulleys 811; first bidirectional screw 83 welded fastening is on the stand, and be provided with three seat 81 that slides along base 1 width direction equidistance respectively on first inner formword 31 and the second inner formword 32, corresponding first bidirectional screw 83 also sets up to three, can improve the regulation effect. The one side that the inboard template was kept away from to the seat 81 that slides offers the opening of stepping down that is used for the guide holder 61 to step down, and the opening both sides lateral wall that steps down is the inclined plane, and the inclination on this inclined plane is unanimous with the inclination of guide rail 82, makes and can retrain each other, direction and location between guide holder 61 and the seat 81 that slides, uses safe and reliable.

Referring to fig. 2 and 3, the turning assembly 9 includes a second bidirectional screw rod, two ends of the second bidirectional screw rod are respectively hinged to tops of the corresponding turning templates, bottoms of the turning templates are respectively hinged to the corresponding bottom templates, and the second bidirectional screw rod is rotated to drive the turning templates to rotate inwards, so that a contraction deformation space is formed between each inner template and the corresponding bottom template, so that the first inner template 31 and the second inner template 32 contract and deform inwards. In this embodiment, the number of the second bidirectional screws is three, and the second bidirectional screws are arranged at equal intervals along the width direction of the base 1 to improve the force application effect.

In order to facilitate the turnover of the turnover templates, the joint surface between each turnover template and the corresponding inner template is an inclined surface, and the inclination direction of the inclined surface is opposite to that of the guide rail 82; in order to process the required convex parts on the prefabricated rail top air duct plate, the joint surface between each overturning template and the corresponding bottom template is provided with a concave cavity which is communicated with the mold cavity.

The implementation principle of the prefabricated rail top air duct plate mold in the embodiment of the application is as follows: when the form is disassembled, the lifting assembly 7 drives the third inner form 33 to descend to separate the third inner form 33 from the first inner form 31 and the second inner form 32, so that a shrinkage deformation space is formed between the first inner form 31 and the second inner form 32, the turning assembly 9 controls the first turning form 34 and the second turning form 35 to turn inwards at the same time, so that a shrinkage deformation space is formed between each inner form and the corresponding bottom form, at the moment, the first inner form 31 and the second inner form 32 are shrunk and deformed inwards through the telescopic assembly, so that the inner form assembly 3 is separated from the prefabricated rail top air duct plate, then the opposite pulling mechanism is released, the corresponding outer forms are driven to slide outwards through the first moving platform 13 and the second moving platform 14, so that the outer form assembly 2 is separated, then the first end form 41 or the second end form 42 is disassembled, the prefabricated rail top air duct plate is moved out of the base 1 through the hoisting device, and finally, removing the rest first end template 41 or second end template 42, slightly hoisting the first end template or the second end template along with the prefabricated rail top air channel plate, and knocking down the first end template or the second end template, thus finishing the whole form removal process.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a prefabricated rail top wind channel board mould which characterized in that: including base (1) and the template subassembly that sets up on base (1), the template subassembly is including sliding outer template subassembly (2) on connecting base (1), inner template subassembly (3) and end template subassembly (4) that set up on base (1) with the mode that can stretch out and draw back and warp, outer template subassembly (2) is including sliding first exterior sheathing (21) and second exterior sheathing (22) on connecting base (1) along length direction, inner template subassembly (3) is including the symmetry set up in base (1) length direction both sides and first interior sheathing (31) and second interior sheathing (32) that can stretch out and draw back and warp and be located between first interior sheathing (31) and second interior sheathing (32) and can follow third interior sheathing (33) that base (1) direction of height goes up and down, first interior sheathing (31) and second interior sheathing (32) are located between first exterior sheathing (21) and second exterior sheathing (22), and a spacing space is left between the first inner formwork (31) and the first outer formwork (21) and between the second inner formwork (32) and the second outer formwork (22), the end formwork assembly (4) comprises a first end formwork (41) and a second end formwork (42) which are symmetrically arranged on two sides of the width direction of the base (1), a first bottom formwork (11) used for supporting the first inner formwork (31) and a second bottom formwork (12) used for supporting the second inner formwork (32) are respectively arranged on the base (1) along two sides of the length direction, a first overturning formwork (34) is arranged between the first inner formwork (31) and the first bottom formwork (11), a second overturning formwork (35) is arranged between the second inner formwork (32) and the second bottom formwork (12), and the outer formwork assembly (2), the first bottom formwork (11), the second bottom formwork (12), the first overturning formwork (34), The second turnover template (35), the inner template component (3) and the end template component (4) jointly enclose a mold cavity with an open top.

2. The precast rail air duct roof slab mold according to claim 1, characterized in that: be provided with respectively along length direction both sides on base (1) and be used for driving first moving platform (13) that first exterior sheathing (21) removed and be used for driving second moving platform (14) that second exterior sheathing (22) removed, the one side of first moving platform (13) and second moving platform (14) is connected respectively and is fixed in the exterior sheathing outside that corresponds, the bottom of first moving platform (13) and second moving platform (14) is provided with first pulley (131, 141) respectively, be equipped with on base (1) with first pulley (131, 141) sliding fit's spout.

3. The precast rail air duct roof slab mold according to claim 2, characterized in that: the maintenance assembly (132, 142) is arranged on each of the first moving platform (13) and the second moving platform (14), the maintenance assembly comprises maintenance platforms (1321, 1421), crawling ladders (1322, 1422) and guard rails (1323, 1423), one sides of the maintenance platforms (1321, 1421) are fixed on the upper portions of the corresponding moving platforms, the guard rails (1323, 1423) are fixed on the other sides of the maintenance platforms (1321, 1421), and the crawling ladders (1322, 1422) are fixed on one sides of the maintenance platforms (1321, 1421).

4. The precast rail air duct roof slab mold according to claim 1, characterized in that: and a counter-pulling mechanism (5) for tensioning the first outer template (21) and the second outer template (22) is arranged between the tops of the first outer template (21) and the second outer template (22).

5. The precast rail air duct roof slab mold according to claim 1, characterized in that: be provided with the adjustment mechanism who is used for controlling the flexible deformation of interior form assembly (3) on base (1), adjustment mechanism includes support frame (6), be used for controlling lift assembly (7) that third inner formword (33) go up and down, be used for controlling telescopic component (8) of first inner formword (31) and second inner formword (32) synchronous motion and be used for controlling first upset template (34) and second upset template (35) pivoted upset subassembly (9), support frame (6) are fixed in on base (1) and are located between first inner formword (31) and second inner formword (32), lift assembly (7) set up on support frame (6) along vertical direction, telescopic component (8) set up on support frame (6), upset subassembly (9) are located telescopic component (8) below.

6. The precast rail air duct roof slab mold of claim 5, wherein: lifting unit (7) are including lifting screw (71) and outer tube (72), lifting screw (71) one end fixed connection is in third inner formword (33) inner wall, and lifting screw (71) other end passes outer tube (72) back overhang vacancy in support frame (6), outer tube (72) are fixed in on support frame (6), and are equipped with the through-hole that supplies lifting screw (71) to pass through along the axial in outer tube (72), the through-hole inner wall is equipped with the internal thread with lifting screw (71) complex.

7. The precast rail air duct roof slab mold of claim 5, wherein: the telescopic component (8) comprises a sliding seat (81), a guide rail (82) and a first bidirectional screw rod (83), the tops of the first inner template (31) and the second inner template (32) are respectively fixedly connected with a sliding seat (81), one surface of each sliding seat (81) far away from the corresponding inner template is respectively provided with a second pulley (811), the two sides of the supporting frame (6) are respectively provided with a guide seat (61), each guide seat (61) is respectively provided with a guide rail (82) in an inclined way, each guide rail (82) is respectively matched with the corresponding second pulley (811) in a sliding way, one end of the guide rail (82) close to the inner template is a high end, one end of the guide rail (82) far away from the inner template is a low end, the first bidirectional screw (83) is fixed on the support frame (6) along the horizontal direction, and two ends of the first bidirectional screw (83) are respectively connected with the corresponding sliding seats (81).

8. The pre-fabricated rail head plate mold of claim 7, wherein: the side of the sliding seat (81) far away from the inner side template is provided with a yielding opening for yielding the guide seat (61).

9. The precast rail air duct roof slab mold of claim 5, wherein: the overturning assembly (9) comprises a second bidirectional lead screw, two ends of the second bidirectional lead screw are respectively hinged with the tops of the corresponding overturning templates, and the bottoms of the overturning templates are respectively hinged with the corresponding bottom templates.

10. The precast rail air duct roof slab mold according to claim 1, characterized in that: the combination surface between each turnover template and the corresponding inner template is an inclined surface, a concave cavity is arranged at the combination surface between each turnover template and the corresponding bottom template, and the concave cavity is communicated with the mold cavity.