CN117445153A - Prefabricated concrete stair is with general mould of assembled - Google Patents

Abstract

The invention relates to an assembled universal mold for precast concrete stairway, which relates to the technical field of concrete molds and comprises a plurality of surrounding plate blocks and a plurality of stepping blocks, wherein the stepping blocks are propped against each other, a fixed block is arranged on the side wall of each stepping block, a first fixed groove is formed in each surrounding plate block, the fixed block is adaptively inserted into the first fixed groove, an assembly component is arranged on each stepping block, the assembly component is used for assembling adjacent stepping blocks, a locking component is arranged on each surrounding plate block, and the locking component is used for locking the fixed block. The application has the effect of adjustable reuse and cost saving.

Description

Prefabricated concrete stair is with general mould of assembled

Technical Field

The invention relates to the technical field of concrete molds, in particular to an assembled universal mold for precast concrete stairways.

Background

The stair is an indispensable structure in the middle of the building, the existing stair is prefabricated in a concrete pouring mode, then transported to a building site for assembly and assembly, and in order to ensure the dimensional accuracy and pouring quality of the stair, a fixed steel mould is produced in the concrete pouring process, and the stair is prefabricated in a concrete pouring mode through the steel mould.

However, in the actual production process, the mold parts manufactured by the steel mold are directly fixedly connected, the size of the mold cannot be adjusted, one set of steel mold can only manufacture the stairway with fixed specification, and the height difference between steps is often required to be adjusted according to different conditions when the stairway is manufactured, because the steel mold cannot be adjusted in size, the steel mold cannot be recycled, and only the steel mold can be manufactured again, so that the cost is high.

Disclosure of Invention

In order to realize adjustable reuse of the mould and save cost, the application provides an assembled universal mould for precast concrete stairways.

The application provides a prefabricated concrete stair is with general mould of assembled adopts following technical scheme:

the utility model provides a prefabricated concrete stair is with general mould of assemblable, includes a plurality of blocks and a plurality of blocks of marking time, the block of marking time offsets each other, the block lateral wall of marking time is provided with the fixed block, the coaming piece is provided with first fixed slot, the fixed block adaptation inserts in the first fixed slot, the block of marking time is provided with the equipment subassembly, the equipment subassembly is used for assembling adjacent block of marking time, the coaming piece is provided with locking subassembly, locking subassembly is used for the locking fixed block.

Through adopting above-mentioned technical scheme, the position of adjacent piece of marking time is adjusted according to the difference in height between the stair of required prefabrication before the use, with the equipment subassembly with the piece equipment of marking time that links to each other together, afterwards reuse bounding wall piece supports the piece lateral wall of marking time, and make all mark time the fixed block on the piece all adapt to insert in the first fixed slot, through locking subassembly locking fixed block, through the locking of fixed block tight first fixed slot inner wall and locking subassembly, make fixed block and mark time the piece relatively fixed, thereby accomplish the regulation equipment of mould, the steel mould that can not adjust relatively, this mould is adjustable, the suitability is strong, can reuse, the cost is reduced.

Preferably, the assembly component comprises an assembly block and an assembly rod, the assembly block is provided with a first assembly groove, the assembly block is provided with a second assembly groove communicated with the first assembly groove, the assembly rod is slidably arranged in the first assembly groove, the assembly block is arranged in the second assembly groove, one end of the assembly block is connected with the assembly rod, and the other end of the assembly block penetrates out of the second assembly groove and is fixedly connected with the adjacent assembly block.

Through adopting above-mentioned technical scheme, connect adjacent piece of marking time through equipment pole and equipment piece, when the adjacent piece of marking time of equipment, the difference in height between the adjacent piece of marking time is adjusted to the mode of accessible slip equipment piece and equipment pole for the difference in height accords with the stair specification of making, and the operation is simple and easy convenient.

Preferably, the first assembly groove and the second assembly groove are all communicated with the bottom wall of the stepping block.

Through adopting above-mentioned technical scheme, first equipment groove and second equipment groove all link up the piece diapire of marking time for equipment pole accessible first equipment groove, the piece diapire of marking time is worn out to the equipment piece accessible second equipment groove, and the piece is marked time to the piece between can split each other, thereby adjusts the piece number of marking time, further increases the suitability of this mould, makes this mould can adjust the stair order of making, further convenient recycle, saves the cost.

Preferably, the assembly groove penetrates through the stepping block, the assembly rod penetrates out of the assembly groove, the coaming block is provided with a second fixing groove, the assembly rod is inserted into the second fixing groove in an adapting mode, and the coaming block is provided with another group of locking assemblies used for locking the assembly rod.

Through adopting above-mentioned technical scheme, when enclosing the plate in the equipment, insert the fixed block again first fixed slot, in the equipment pole also adaptation that will wear out the equipment groove inserts the second fixed slot to use locking assembly locking, promote the stability of the equipment connection between the adjacent piece of marking time, also promote the stability of enclosing the plate and marking time and connecting between the piece simultaneously, reduce the mould in-process of using bounding wall piece or mark time the unexpected removal of piece and lead to the unqualified possibility of the stair quality of making.

Preferably, the second fixing groove inner wall is provided with an auxiliary block, the assembly bar is provided with an auxiliary groove, and the auxiliary block is inserted into the auxiliary.

Through adopting above-mentioned technical scheme, when the equipment encloses the plate, when the equipment pole inserts the second fixed slot, the auxiliary block on the second fixed slot inner wall inserts in the auxiliary slot on the equipment pole, further promotes and encloses the stability of connecting between plate and the equipment pole, reduces the unexpected removal of bounding wall piece in the mould use and leads to the unqualified possibility of the stair quality of system.

Preferably, the assembly rod is provided with a first clamping block and a second clamping block, the second clamping block is connected with the assembly rod and the first clamping block, a first clamping groove is formed among the assembly rod, the first clamping block and the second clamping block, the surface of the first clamping block is provided with a second clamping groove, the second clamping groove penetrates through the side wall of the first clamping block, the first clamping block can be inserted into the first clamping groove in an adaptive manner, the second clamping block can be inserted into the second clamping groove in an adaptive manner, the stepping block is provided with a connecting assembly, and the connecting assembly is used for connecting two stepping blocks side by side.

Through adopting above-mentioned technical scheme, with two blocks and equipment pole and equipment piece separation of marking time, first fixture block adaptation on two equipment poles inserts in the first draw-in groove on another equipment pole, and make the second fixture block adaptation insert in the second draw-in groove, with two equipment poles combination together like this, it places to laminate the block lateral wall of marking time to lay two blocks again, and make two blocks of marking time and equipment pole combination together, make the equipment pole insert first equipment groove, the equipment piece removes the suitable position in the second equipment groove, rethread coupling assembling links to each other two blocks of marking time, thereby make two blocks of marking time link to each other side by side, can widen the width of stair like this, further promote the adjustability and the suitability of mould, can make the stair of more specifications, convenient reuse, reduce cost.

Preferably, the connecting assembly comprises a first connecting rod, a second connecting rod and a connecting spring, the connecting spring is connected with the two first connecting rods, the second connecting rod is arranged at one end of the first connecting rod far away from the connecting spring, the stepping block is provided with a connecting groove communicated with the first assembling groove, the first connecting rod can be inserted into the first assembling groove, and the second connecting rod can be inserted into the connecting groove.

Through adopting above-mentioned technical scheme, after two with two blocks of marking time are arranged side by side and make the equipment pole assemble each other, will pull open the head rod and make connecting spring tensile, insert the head rod in the first equipment groove that two blocks of marking time link to each other, loosen the head rod and make connecting spring recover, connecting spring pulling second connecting rod removes, make two second connecting rods insert respectively in the spread groove of two blocks of marking time, the second connecting rod lateral wall supports tight spread groove inner wall, accomplish the connection of two blocks of marking time, easy operation is convenient.

Preferably, the locking assembly comprises a locking rod, a locking spring and a locking support rod, the coaming block is provided with a locking groove communicated with the first fixing groove or the second fixing groove, the locking rod is slidably arranged in the locking groove, the locking spring is connected with the locking rod and the inner wall of the locking groove, the locking rod enters the first fixing groove to prop against the fixing block or enters the second fixing groove to prop against the first clamping block, the side wall of the coaming block is provided with a locking support groove communicated with the locking groove, the locking support rod is fixedly connected with the locking rod, and the locking support rod is slidably arranged in the locking support groove.

Through adopting above-mentioned technical scheme, when the equipment encloses the plate, promote locking branch and drive the locking pole and slide and compress locking spring, the locking pole gets into the locking groove completely this moment, after the fixed block inserts first fixed slot, or first fixture block inserts the second fixed slot, loosen the locking pole, locking spring resumes and promotes the locking pole to insert first fixed slot and offset or insert second fixed slot and offset with first fixture block, thereby accomplish the locking to fixed block or first fixture block, the operation is simple and easy convenient, when the needs are released the locking, promote locking branch and drive locking pole removal and compress locking spring, make the locking pole no longer support fastening block or first fixture block can release the locking.

Preferably, the locking rod is provided with a locking slot, and the fixing block or the first clamping block can be inserted into the locking slot.

Through adopting above-mentioned technical scheme, when locking first fixture block or fixed block through locking subassembly, after the locking lever inserts first fixed slot or second fixed slot, fixed block or first fixture block inserts in the locking draw-in groove on the locking lever to accomplish the locking, promote the stability of fixed block and first fixture block locking through setting up the locking draw-in groove.

Preferably, an auxiliary rod is arranged between the locking struts of the two groups of locking assemblies, and the auxiliary rod is connected with the two locking struts.

Through adopting above-mentioned technical scheme, can make things convenient for the slip of locking pole through the auxiliary rod, connect two locking branches through the auxiliary rod simultaneously for can carry out the locking of two sets of locking subassembly simultaneously when promoting the auxiliary rod slip, also can release the locking of two sets of locking subassembly simultaneously, thereby make things convenient for the equipment or the dismantlement of enclosing the plate, promote the convenience of use.

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

1. through setting up enclose the plate, mark time the piece, fixed block, first fixed slot, equipment subassembly and locking subassembly, after will mark time the piece and arrange according to the specification of the stair made through the equipment subassembly, assemble and enclose the plate, will mark time the fixed block adaptation on the piece and insert and enclose the first fixed slot on the plate, and through locking subassembly locking fixed block, accomplish the equipment of mould, this mould can change the difference in height between the pieces of marking time through the equipment subassembly, thereby make the mould can be used for making the stair of different specifications, thereby make the mould can adjust the specification and retrieve and be used for making the stair of new specification, compare the steel mould that can not adjust, this mould can adjust the recycle, the whole amortization cost has been reduced effectively;

2. the assembly blocks on the side walls of the stepping blocks are inserted into the second assembly grooves of the adjacent stepping blocks through the arrangement of the assembly blocks, the assembly rods, the first assembly grooves, the second assembly grooves, the first clamping blocks, the second clamping blocks, the first clamping grooves, the second clamping grooves and the connecting components, the assembly blocks on the side walls of the stepping blocks are connected with the assembly rods, the assembly rods are inserted into the second assembly grooves, the height difference between the adjacent two stepping blocks can be adjusted through adjusting the positions of the assembly rods in the second assembly grooves, so that the manufactured stair specification can be adjusted, meanwhile, the two stepping blocks can be connected side by side, the first clamping blocks on the assembly rods are inserted into the first clamping grooves on the other assembly rods, the second clamping blocks are inserted into the second clamping grooves on the other assembly rods, and the side by side stepping blocks are connected through the connecting components, so that the adjustable range of the die is further improved, and the possibility of recycling is improved;

3. through setting up head rod, second connecting rod, coupling spring and spread groove, two head rods of coupling spring connection, second connecting rod sets up and keeps away from coupling spring one end at head rod, when two blocks need be connected side by side, stretch two head rods and make coupling spring tensile, insert the head rod in the first equipment groove, loosen the head rod, coupling spring recovers and insert the spread groove through head rod pulling second connecting rod in, second connecting rod lateral wall supports tight spread groove inner wall, with two blocks of marking time connect side by side, easy operation is convenient.

Drawings

Fig. 1 is an overall schematic diagram of an assembled universal mold for precast concrete stairway according to an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view for embodying the structure of the assembled component.

Fig. 3 is a schematic cross-sectional view for embodying the attachment relationship of the coaming blocks.

Fig. 4 is a schematic cross-sectional view of a structure for embodying a locking assembly.

Fig. 5 is a schematic cross-sectional view for embodying the structure of the connection assembly.

Fig. 6 is a schematic view for embodying the connection relationship between the assembly bars.

Reference numerals illustrate: 1. a stepping block; 11. a first assembly groove; 12. a second assembly groove; 13. a connecting groove; 2. surrounding plate blocks; 21. a fixed block; 22. a first fixing groove; 23. a second fixing groove; 231. an auxiliary block; 24. a locking groove; 25. a locking support groove; 3. a baffle; 4. assembling the assembly; 41. assembling blocks; 42. assembling a rod; 421. an auxiliary groove; 422. a first clamping block; 4221. a second clamping groove; 423. a second clamping block; 424. a first clamping groove; 5. a connection assembly; 51. a first connecting rod; 52. a second connecting rod; 53. a connecting spring; 6. a locking assembly; 61. a locking lever; 611. a locking slot; 62. a locking spring; 63. locking the support rod; 631. an auxiliary rod.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses an assembled universal mold for precast concrete stairway. Referring to fig. 1 to 5, the device comprises two coaming blocks 2 and a plurality of stepping blocks 1 which are propped against each other, wherein the stepping blocks 1 are tightly propped against each other and are arranged side by side, and baffle plates 3 are fixedly arranged on the side walls of the stepping blocks 1 at two ends. The side wall of the pedal block 1, which is close to the pedal block 2, is fixedly provided with a circular fixing block 21, the side wall of the pedal block 2, which is close to the pedal block 1, is provided with a first fixing groove 22, the first fixing groove 22 penetrates through the side wall of the pedal block 2, the fixing block 21 is inserted into the first fixing groove 22 in an adapting way, and the coaming block 2 is provided with a group of locking assemblies 6 used for locking the fixing block 21. An assembly component 4 for assembling the adjacent stepping blocks 1 is arranged between the stepping blocks 1. A connecting component 5 for connecting the two stepping blocks 1 side by side is arranged between the two stepping blocks 1 side by side. Step blocks 1 are connected in pairs side by side through a connecting component 5, step blocks 1 are assembled together through an assembling component 4, the height difference between adjacent step blocks 1 is adjusted according to the specifications of the manufactured stairs, then a surrounding plate block 2 is installed, a fixing block 21 is adaptively inserted into a first fixing groove 22 and is locked through a locking component 6, and die assembly is completed. The stair width is adjusted to this mould accessible coupling assembling 5, through the height of stair step of assembly component 4 regulation, compares the steel mould that can not adjust, has reduced whole amortization cost effectively.

In order to improve the convenience of adjustment, referring to fig. 1 to 2, the assembly component 4 comprises an assembly block 41 and an assembly rod 42, a first assembly groove 11 is penetrated and arranged on the side wall of the stepping block 1, which is close to one side of the surrounding plate 2, a second assembly groove 12 which is vertical to and communicated with the first assembly groove 11 is arranged on the side wall of the stepping block 1, the first assembly groove 11 and the second assembly groove 12 are penetrated and communicated with the bottom wall of the stepping block 1, the assembly rod 42 is inserted into the first assembly groove 11 in an adapting way and penetrates out of the side wall of the stepping block 1, the assembly block 41 is inserted into the second assembly groove 12, one end of the assembly block 41 is fixedly connected with the assembly rod 42 in an integral way, and the other end of the assembly block 41 penetrates out of the second assembly groove 12 and is fixedly connected with the side wall of the adjacent stepping block 1 or the baffle 3. By changing the position of the assembly rod 42 in the first assembly groove 11, the position of the assembly block 41 in the second assembly groove 12 is changed, and then the height difference between the adjacent stepping blocks 1 is adjusted, so that the operation is very convenient.

In order to improve stability of assembly, referring to fig. 2 and 3, a second fixing groove 23 penetrating through the side wall is provided on the side wall of the surrounding plate 2 near the stepping block 1 side, the second fixing groove 23 penetrates through the side wall of the surrounding plate 2 side, an auxiliary block 231 is fixedly provided on the bottom wall of the second fixing groove 23, an auxiliary groove 421 is provided on a part of the assembling rod 42 extending out of the stepping block 1, a part of the assembling rod 42 extending out of the stepping block 1 is adapted to be inserted into the second fixing groove 23, and the auxiliary block 231 is adapted to be inserted into the auxiliary groove 421. The panel block 2 is provided with a set of locking assemblies 6 for locking the assembly bars 42. When the surrounding plate block 2 is installed, the assembling rod 42 is inserted into the second fixing groove 23 in an adapting way, the auxiliary block 231 is inserted into the auxiliary groove 421 in an adapting way, and the assembling rod 42 is locked through the locking component 6, so that the assembling stability between the surrounding plate block 2 and the stepping block 1 and between the adjacent stepping blocks 1 is improved.

For convenience of locking, referring to fig. 3 and 4, the locking assembly 6 includes a locking lever 61, a locking spring 62 and a locking strut 63, the coaming block 2 is provided with a locking groove 24 communicating with the first fixing groove 22 or the second fixing groove 23, the locking lever 61 is slidably fitted in the locking groove 24, the locking spring 62 connects the locking lever 61 and the inner wall of the locking groove 24, a side wall of the locking lever 61 on the side away from the locking spring 62 is provided with a locking catching groove 611, and the locking catching groove 611 penetrates through the side wall of the locking lever 61. The side wall of the surrounding plate block 2, which is far away from the side of the stepping block 1, is provided with a locking support groove 25 communicated with the locking groove 24, the locking support rods 63 are arranged in the locking support groove 25 in a matched sliding manner, the locking support rods 63 are fixedly connected with the locking rods 61, and auxiliary rods 631 are fixedly arranged between the locking support rods 63 of the two groups of locking assemblies 6 to be connected. When assembling the panel block 2, the auxiliary rod 631 slides two groups of locking rods 61 simultaneously to compress the locking springs 62, so that the fixed block 21 is inserted into the first fixing groove 22, the assembling rod 42 is inserted into the second fixing groove 23, the auxiliary rod 631 is released, the locking springs 62 are restored, the locking rods 61 are pushed to be inserted into the first fixing groove 22 or the second fixing groove 23, the fixed block 21 or the assembling rod 42 is inserted into the locking supporting groove 25, and locking is completed, so that the operation is simple and convenient.

For convenience of connection of the adjacent tread blocks 1, referring to fig. 5, the connection assembly 5 includes a connection spring 53, two first connection rods 51 and two second connection rods 52, the second connection rods are fixedly disposed at one ends of the first connection rods 51, and the connection spring 53 connects one ends of the two first connection rods 51 away from the second connection rods 52. The side wall of the stepping block 1, which is close to one side of the surrounding plate block 2, is provided with a connecting groove 13 communicated with the first assembling groove 11, the connecting groove 13 penetrates through the bottom wall of the stepping block 1, the first connecting rod 51 can be inserted into the first assembling groove 11 in an adapting way, and the second connecting rod 52 can be inserted into the connecting groove 13 in an adapting way. When the two parallel stepping blocks 1 are connected, the two first connecting rods 51 are pulled to enable the connecting springs 53 to stretch, the first connecting rods 51 are adaptively inserted into the first assembly grooves 11 of the two parallel stepping blocks 1, the first connecting rods 51 are loosened after the first connecting rods are moved to the proper positions, the connecting springs 53 are restored and contracted, the second connecting rods 52 are pulled to be adaptively inserted into the connecting grooves 13, the second connecting rods 52 are abutted against the inner walls of the connecting grooves 13, connection is completed, and the operation is simple and convenient.

For the stability of the connection between the parallel stepping blocks 1, referring to fig. 4 and 6, one end of the assembling rod 42, which is far away from the surrounding plate 2, is provided with a first clamping block 422 and a second clamping block 423, the second clamping block 423 is fixedly arranged between the assembling rod 42 and the first clamping block 422, a first clamping groove 424 is formed between the assembling rod 42 and the first clamping block 422 and between the assembling rod 42 and the second clamping block 423, the first clamping block 422 is circular, the side wall of the first clamping block 422 is provided with a second clamping groove 4221, the first clamping block 422 can be inserted into the first clamping groove 424 in an adapting manner, and the second clamping block 423 can be inserted into the second clamping groove 4221 in an adapting manner. When the two stepping blocks 1 are juxtaposed, the first clamping blocks 422 on the assembling rod 42 are inserted into the first clamping grooves 424 on the other assembling rod 42, the second clamping blocks 423 are inserted into the second clamping grooves 4221 on the other assembling rod 42, and the two assembling rods 42 are connected, so that the stability of connection between the juxtaposed stepping blocks 1 is improved. In another embodiment, the two ends of the assembling rod 42 are respectively provided with a first clamping block 422 and a second clamping block 423, meanwhile, the first clamping block 422 can be inserted into the locking support groove 25 in an adapting manner, the first clamping block 422 can be inserted into the second fixing groove 23 in an adapting manner, and the auxiliary block 231 can be inserted into the first clamping groove 424 in an adapting manner, so that the fixing of the tread block 1 and the coaming block 2 is completed, and thus, a plurality of tread blocks 1 can be connected side by side, and the adjustable range of the width of the manufactured stair can be increased.

The implementation principle of the assembled universal mold for the precast concrete stairway is as follows: when the mold is assembled, the height of the assembly rod 42 in the first assembly groove 11 is adjusted, so that the height difference between the adjacent stepping blocks 1 is adjusted, the mold can manufacture stair steps with different height differences, and meanwhile, according to the width of the manufactured stair, the two ends of one stepping block 1 can be selected to assemble the surrounding plate block 2 or the two stepping blocks 1 are arranged in parallel and then assembled to the surrounding plate block 2. When assembling the surrounding plate block 2, the fixing block 21 is fit-inserted into the first fixing groove 22, and the assembling rod 42 is fit-inserted into the second fixing groove 23, and the auxiliary block 231 is inserted into the auxiliary groove 421, and the fixing block 21 and the assembling rod 42 are locked by the locking assembly 6, so that the assembly is completed. The mold is convenient to assemble, and can be adjusted in terms of step height difference and width according to the manufactured stair specification, so that the mold can be adjusted and reused according to requirements, compared with a steel mold which cannot be adjusted, the mold is stronger in applicability, and the amortization cost of the mold is far less than that of the steel mold through reuse, so that a lot of cost is saved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a prefabricated concrete stair is with general mould of assembled which characterized in that: including a plurality of blocks (2) and a plurality of blocks (1) of marking time of enclosing, block (1) offset each other of marking time, block (1) lateral wall of marking time is provided with fixed block (21), enclosing plate block (2) are provided with first fixed slot (22), fixed block (21) adaptation inserts in first fixed slot (22), block (1) of marking time is provided with equipment subassembly (4), equipment subassembly (4) are used for assembling adjacent block (1) of marking time, enclosing plate block (2) are provided with locking subassembly (6), locking subassembly (6) are used for locking fixed block (21).

2. The assembled universal mold for precast concrete stairway according to claim 1, wherein: the assembly component (4) comprises an assembly block (41) and an assembly rod (42), wherein the assembly block (1) is provided with a first assembly groove (11), the assembly block (1) is provided with a second assembly groove (12) communicated with the first assembly groove (11), the assembly rod (42) is slidably arranged in the first assembly groove (11), the assembly block (41) is arranged in the second assembly groove (12), one end of the assembly block (41) is connected with the assembly rod (42), and the other end of the assembly block (41) penetrates out of the second assembly groove (12) and is connected with the adjacent assembly block (1).

3. An assemblable general purpose mould for precast concrete stairway according to claim 2, wherein: the first assembly groove (11) and the second assembly groove (12) are all communicated with the bottom wall of the stepping block (1).

4. A prefabricated concrete stairway using assembled universal mould according to claim 3, characterised in that: the assembly groove runs through the step block (1), the assembly rod (42) passes through the assembly groove, the coaming block (2) is provided with a second fixed groove (23), the assembly rod (42) is adaptively inserted into the second fixed groove (23), and the coaming block (2) is provided with another group of locking components (6) for locking the assembly rod (42).

5. The assembled universal mold for precast concrete stairway according to claim 4, wherein: the inner wall of the second fixing groove (23) is provided with an auxiliary block (231), the assembly rod (42) is provided with an auxiliary groove (421), and the auxiliary block (231) can be inserted into the auxiliary groove (421).

6. The assembled universal mold for precast concrete stairway according to claim 4, wherein: the equipment pole (42) is provided with first fixture block (422) and second fixture block (423), equipment pole (42) and first fixture block (422) are connected to second fixture block (423), form first draw-in groove (424) between equipment pole (42), first fixture block (422) and second fixture block (423), first fixture block (422) surface is provided with second draw-in groove (4221), second draw-in groove (4221) link up first fixture block (422) lateral wall, first fixture block (422) can be adapted to insert first draw-in groove (424), second fixture block (423) can be adapted to insert second draw-in groove (4221), step piece (1) are provided with coupling assembling (5), coupling assembling (5) are used for linking to each other two blocks of step (1) side by side.

7. The assembled universal mold for precast concrete stairway according to claim 6, wherein: the connecting assembly (5) comprises a first connecting rod (51), a second connecting rod (52) and a connecting spring (53), the connecting spring (53) is connected with the two first connecting rods (51), the second connecting rod (52) is arranged at one end, far away from the connecting spring (53), of the first connecting rod (51), a connecting groove (13) communicated with the first assembling groove (11) is formed in the side wall of the stepping block (1), the first connecting rod (51) can be inserted into the first assembling groove (11), and the second connecting rod (52) can be inserted into the connecting groove (13).

8. The assembled universal mold for precast concrete stairway according to claim 4, wherein: the locking assembly (6) comprises a locking rod (61), a locking spring (62) and a locking support rod (63), wherein the coaming block (2) is provided with a locking groove (24) communicated with the first fixing groove (22) or the second fixing groove (23), the locking rod (61) is arranged in the locking groove (24) in a sliding mode, the locking spring (62) is connected with the locking rod (61) and the inner wall of the locking groove (24), the locking rod (61) enters the first fixing groove (22) to prop against the fixing block (21) or enters the second fixing groove (23) to prop against the assembling rod (42), the side wall of the coaming block (2) is provided with a locking support groove (25) communicated with the locking groove (24), the locking support rod (63) is fixedly connected with the locking rod (61), and the locking support rod (63) is arranged in the locking support groove (25) in a sliding mode.

9. The assembled universal mold for precast concrete stairway according to claim 8, wherein: the locking rod (61) is provided with a locking clamping groove (611), and the fixed block (21) or the first clamping block (422) can be inserted into the locking clamping groove (611).

10. The assembled universal mold for precast concrete stairway according to claim 8, wherein: an auxiliary rod (631) is arranged between the locking support rods (63) of the two groups of locking assemblies (6), and the auxiliary rod (631) is connected with the two locking support rods (63).