Stair section mold

Abstract

The utility model discloses a stair section mould, relates to mould technical field, including the stair section mould also includes the support frame, the support frame includes base plate and side plate that fixed connection, said base plate and side plate enclose to form the accommodation space, a plurality of said core mould block is provided in the accommodation space, said core mould block is equipped with said core mould block, said core mould block is equipped with said core mould block, said core mould block is equipped with said core mould block. The adjacent core modules are tightly attached, the surfaces of the multiple core modules are combined to form a forming face, the forming face faces the side plate, a forming space is separated in the containing space, the forming space is attached to the core modules, and the included angle of the core modules relative to the side plate can be adjusted. A pouring opening is formed in the top of the forming space and communicates with the forming space and the outside. Stair section molds with different step numbers can be prefabricated, stair section molds with different step widths and step heights can be manufactured, the manufacturing cost of the assembly type prefabricated stair is reduced, and the manufacturing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of staircase technology, specifically to a staircase mold. Background Technology

[0002] In modern society, staircases, as an important component of buildings, are characterized by diverse size and shape requirements and a large quantity, posing significant challenges to production methods. Furthermore, the shape and size of staircases are influenced by the floor level and the width of the interior space, resulting in complex and varied widths and heights.

[0003] Nowadays, in order to quickly and cost-effectively manufacture stair treads, prefabricated stair molds are often used. Each time, a new mold is made according to the stair design and construction drawings, and then the newly made mold is used to complete the construction of the staircase.

[0004] Each time the mold is remade according to the staircase design and construction drawings, it results in significant mold wear and tear, high costs, and long construction time. Utility Model Content

[0005] This utility model aims to address one of the technical problems in related technologies to a certain extent. To save on the cost of prefabricated stair construction and improve the industrialization level of stair construction, the inventor designed a stair combination scheme in which stair sections and stair beams or stair platforms are manufactured separately. Therefore, this utility model provides a stair section mold, which has the advantages of reducing the number of molds required for prefabricated stairs, lowering manufacturing costs, and improving manufacturing efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A staircase mold includes multiple core modules. The mold further includes a support frame comprising a fixedly connected retaining component, a base plate, and a side plate. A receiving space is formed within the support frame, and the multiple core modules are disposed within this space. Adjacent core modules are tightly fitted together, and the surfaces of the core modules combine to form a molding surface facing the side plate. This molding surface separates the molded space from the retaining component within the receiving space. The molding space is fitted to the core modules, and the angle between the core modules and the side plate is adjustable. A pouring port communicating with the molding space is formed on the support frame. By rotating the core modules and adjusting their angle relative to the side plate, the tread width of the precast staircase can be changed to meet the needs of different staircase sizes. The number of core modules can also be changed to meet the needs of staircases with different numbers of steps. After the core modules are set, concrete is poured into the molding space through the pouring port to cast the precast staircase. This method achieves the casting of precast staircases of various sizes and heights using a single mold, reducing the number of molds required for precast staircases and lowering manufacturing costs.

[0008] Optionally, the base plate is provided with a positioning groove extending along the length of the base plate. The core module also includes a positioning block, and the core module is rotatable around the positioning block. The positioning groove is located in the middle of the base plate, and the positioning block is disposed on the surface of the core module facing the base plate, with the positioning block accommodated within the positioning groove. Through the cooperation of the positioning groove and the positioning block, the core module is mounted on the base plate via the positioning block, allowing it to rotate around the positioning block on the base plate. The positioning block is located in the center of the core module, ensuring that the core module remains centered on the support frame during adjustment, thus improving accuracy.

[0009] Optionally, the positioning block is a cylindrical shape, and its diameter is adapted to the width of the positioning groove; or, the positioning block is a prism, and its horizontal cross-sectional shape is adapted to the positioning groove. As a cylindrical shape, the positioning block can rotate within the positioning groove after installation, allowing the prefabricated module to be directly rotated and adjusted after installation without disassembling and reinstalling it. This simplifies the adjustment process, reduces the difficulty of use, and improves convenience and efficiency.

[0010] Optionally, the support frame further includes a pressure rod, with at least a portion of the pouring port exposed to the pressure rod. A strip-shaped hole is provided at the top of the side plate, and the end of the pressure rod is fixed to the strip-shaped hole, allowing it to move smoothly within the hole. The end of the pressure rod is fixed to the side plate by a fastener, which can be a bolt, allowing the end of the pressure rod to slide along the strip-shaped hole. This solves the problem of adjusting for different thicknesses of the stair section. By fixing both ends of the pressure rod to the top of the side plate, the rigid solid nature of the middle of the pressure rod exerts pressure on the core module located below it, towards the bottom plate. This increases the friction between the core module and the bottom plate after fixing, reducing the possibility of the core module rotating during pouring and improving the reliability and stability of the stair section mold.

[0011] Optionally, the support frame further includes a fastener for fixing the pressure rod to the core module, the pressure rod being connected to the core module via the fastener. The fastener can increase the friction between the pressure rod and the core module, thereby improving the fixing effect of the pressure rod on the core module and preventing the core module from rotating after being fixed.

[0012] Optionally, the maintaining component is disposed in the receiving space. The maintaining component cooperates with the core module and the side plate to horizontally close the molding space and maintain it at a set angle. Furthermore, the maintaining component, the molding surface, the bottom plate, and the side plate surround and form the molding space. The maintaining component abuts and supports the side plate, the bottom plate, and the core module respectively to fix the angle of the core module, prevent the core module from rotating during actual casting, and improve the safety and reliability of casting.

[0013] Optionally, the supporting components include a tail supporting component and a head supporting component. One end of the supporting component abuts against the side plate, and the other end is fitted and fixed to the core module. The pouring port is located between the tail supporting component and the head supporting component on the same side of the core module. The length of the tail supporting component overlapping with the molding space is greater than the length of the head supporting component overlapping with the molding space. The tail supporting component is used to determine the tail limit of the precast staircase, and the head supporting component is used to determine the head limit of the precast staircase, thereby achieving side closure of the molding space and ensuring safety during pouring. The greater length of the tail supporting component overlapping with the molding space compared to the head supporting component ensures that the bottom of the precast staircase section has a longer edge for fitting the installation section. Simultaneously, the tail supporting component and the head supporting component are vertically positioned relative to the core module to ensure that the head of the staircase is perpendicular to the adjacent step during pouring.

[0014] Optionally, the support frame further includes a support bracket, the bottom of which is fixedly connected to the base plate. The support bracket connects the ends of the two side plates, is perpendicular to the base plate, and is used to hold the side plates at a 90° angle to the base plate. The support bracket is perpendicularly fixed to both side plates and the base plate, providing lateral tension to the side plates and preventing staircase shape differences caused by side plate tilting during use, thus improving the reliability and stability of the mold.

[0015] Optionally, the side panel further includes a first sliding groove for fixing to the base plate, and the base plate further includes a first fixing hole, the projection of the first fixing hole on the base plate being located within the projection of the first sliding groove on the base plate, the first sliding groove extending along the thickness direction of the side panel; and / or, the side panel further includes a second fixing hole, and the support frame further includes a second sliding groove, the projection of the second fixing hole on the support frame being located within the second sliding groove, the second sliding groove extending along the width direction of the support frame. The first and second sliding grooves enable relative displacement of the side panels along the width direction of the base plate, thereby adjusting the minimum distance between the two side panels to accommodate the thickness requirements of the precast stair section.

[0016] Optionally, the support frame further includes a pad, which is sandwiched between adjacent core modules. The pad is fixedly attached to the adjacent core modules, with one end of the pad flush with the molding surface, and the pad is parallel to the surface of the core module to which it is attached. Rotating the core modules can adjust the tread width or tread height of the staircase, but it cannot adjust both simultaneously. In cases where simultaneous adjustment is required, adding a pad between adjacent core modules allows for synchronized adjustment, expanding the applicability, improving the mold's versatility, and reducing production costs. Furthermore, the pad not extending beyond the molding surface and being parallel to the core module surface ensures that the final cast staircase remains vertical, improving the staircase's accuracy and safety.

[0017] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a structural diagram of a stair section mold according to the present invention.

[0020] Figure 2 This is a partially enlarged view of a stair section mold according to the present invention.

[0021] Figure 3 This is an assembly drawing of a stair section mold according to the present invention.

[0022] Figure 4 This is a structural diagram of a stair section mold according to the present invention.

[0023] Figure 5 This is a schematic diagram showing the location of a molding die for a stair section according to the present invention.

[0024] Figure 6 This is a schematic diagram showing the location of another forming mold for a stair section mold according to this utility model.

[0025] Figure 7 This is a side view of a stair section mold according to the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Core module, 110. Molding surface, 120. Positioning block, 200. Support frame, 210. Base plate, 211. Positioning groove, 220. Side plate, 221. Strip hole, 222. First slide groove, 230. Accommodation space, 231. Molding space, 232. Pouring port, 240. Tail holding assembly, 250. Head holding assembly, 260. Support frame, 261. Second slide groove, 270. Pressure bar. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0029] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this utility model. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0030] Because staircases vary greatly in location and floor height within each building, and the width and height of the building space where staircases are used also differ significantly, staircase design involves a wide variety of variations in stair flight height, as well as the number, width, and height of stair runs.

[0031] Existing precast concrete staircases require the creation of new molds for each production run based on the staircase's design and construction drawings. This results in significant mold wear and tear, offering no advantage in terms of cost or time. Each mold set can only produce one staircase segment at a time. Production efficiency is low; even when producing the same staircase with a standard residential floor height, only one mold set can produce one segment.

[0032] To address this, the inventor developed a mold that can simultaneously produce two stair sections of different lengths. With simple adjustments, it can produce stair sections with different numbers of steps, widths, and heights, thus improving production efficiency and saving manufacturing costs. The mold has a stable structure, is easy to operate, and has a wide range of applications.

[0033] like Figures 1-3 As shown, to solve the above problems, the inventors propose a stair section mold, including multiple core modules 100. The stair section mold also includes a support frame 200, which includes a fixedly connected retaining component, a base plate 210, and a side plate 220. A receiving space 230 is formed within the support frame 200. The multiple core modules 100 are disposed within the receiving space 230, and adjacent core modules 100 are tightly fitted together. The surfaces of the multiple core modules 100 are combined to form a molding surface 110, which faces the side plate 220 and is separated from the retaining component within the receiving space 230 to form a molding space 231. The molding space 231 is fitted with the core modules 100, and the included angle of the core modules 100 relative to the side plate 220 is adjustable. A pouring port communicating with the molding space 231 is formed on the support frame 200. The tread width of the precast staircase can be changed by rotating the core module 100 and adjusting the angle between the core module 100 and the side plate 220, so as to meet the needs of precast staircases of different sizes. The number of core modules 100 can also be changed to meet the needs of staircases with different numbers of steps. After setting the position of the core module 100 and fixing the mold, concrete is poured into the forming space 231 through the pouring port 232 to realize the casting of the precast staircase. The casting of precast staircase sections with various tread widths, tread heights and stair heights can be realized through a single mold. It has the advantages of reducing the number of molds required for precast staircases and reducing manufacturing costs.

[0034] like Figure 3 and Figure 4As shown, the base plate 210 is provided with a positioning groove 211 extending along the length direction of the base plate 210. The core module 100 also includes a positioning block 120. The core module 100 is rotatable around the positioning block 120. The positioning groove 211 is located in the middle of the base plate 210. The positioning block 120 is disposed on the bottom surface of the core module 100 facing the base plate 210 and is accommodated in the positioning groove 211. Through the cooperation of the positioning groove 211 and the positioning block 120, the core module 100 is installed on the base plate 210 via the positioning block 120. The positioning block 120 is located in the center of the core module 100, so that when adjusting the core module 100, it is kept in a position symmetrical about the center of the positioning groove 211, thereby improving the symmetry of the prefabricated stair sections on both sides. In this embodiment, the positioning block 120 can be integrally formed with the core module 100. When adjusting the angle between the core module 100 and the side plate 220, the positioning block 120 and the core module 100 rotate simultaneously, and the positioning block 120 rotates within the positioning groove 211. Of course, in other embodiments, the positioning block 120 can also be combined and installed with the core module 100. When adjusting the angle between the core module 100 and the side plate 220, the positioning block 120 is fixed in the positioning groove 211 and remains stationary. The core module 100 is connected to the positioning block 120 through a rotating shaft, and the core module 100 rotates relative to the positioning block 120.

[0035] The positioning block 120 is a circular cylinder, and its diameter is adapted to the width of the positioning groove 211. As a circular cylinder, the positioning block 120 can rotate within the positioning groove 211 after installation, allowing the prefabricated module to be directly rotated and adjusted after installation without disassembling and reinstalling it. This simplifies the adjustment process, reduces the difficulty of use, and improves convenience and efficiency. In this embodiment, the positioning block 120 is a circular cylinder connected to the core module 100 via a rotating shaft to facilitate adjustment of the core module 100's position. In other embodiments, the positioning block 120 can also be a prism, with its horizontal cross-sectional shape adapted to the positioning groove 211, meaning the positioning block 120 is fixed within the positioning groove 211. The prism positioning block 120 has the advantages of good stability and is less prone to displacement.

[0036] like Figure 2 , Figures 5-6As shown, the support frame 200 also includes a pressure rod 270. At least a portion of the pouring port 232 is exposed to the pressure rod 270. The top of the side plate 220 is provided with a strip-shaped hole 221. The end of the pressure rod 270 is fixed to the strip-shaped hole 221, and the end of the pressure rod 270 can move smoothly within the strip-shaped hole 221. The end of the pressure rod 270 is fixed to the side plate 220 by a fastener, which can be a bolt, allowing the end of the pressure rod 270 to slide along the strip-shaped hole 221. By fixing both ends of the pressure rod 270 to the top of the side plate 220, the middle part of the pressure rod 270, due to its rigid solid nature, exerts pressure on the core module 100 located below the pressure rod 270 towards the bottom plate. This increases the friction between the core module 100 and the bottom plate 210 after fixing, reduces the possibility of the core module 100 rotating during pouring, and improves the reliability and stability of the stair section mold.

[0037] The support frame 200 also includes a fastener for fixing the pressure rod 270 to the core module 100, the pressure rod 270 being connected to the core module 100 via the fastener. The fastener increases the friction between the pressure rod 270 and the core module 100, thereby improving the fixing effect of the pressure rod 270 on the core module, preventing the core module from rotating after fixing, reducing the possibility of rotation during casting, and improving the reliability and stability of the stair section mold. In this embodiment, the fastener is a bolt that penetrates the pressure rod 270 and extends into the core module 100, fixing the pressure rod 270 to the core module 100 and limiting the stability of the top of the core module 100. It should be noted that in other embodiments, the fastener can also be a rubber-like elastic gasket placed between the pressure rod 270 and the core module 100. Of course, other components that can increase the force between the pressure rod 270 and the core module 100 can also be used, all of which contribute to the beneficial effect of the pressure rod 270 on the core module 100.

[0038] The supporting assembly is disposed in the receiving space 230. The supporting assembly cooperates with the core module 100 and the side plate 220 to horizontally enclose the molding space 231. Furthermore, the supporting assembly, together with the molding surface 110, the bottom plate 210, and the side plate 220, forms the molding space 231. The supporting assembly abuts against and supports the side plate 220, the bottom plate 210, and the core module 100 respectively, thereby fixing the angle of the core module 100 and preventing concrete leakage during pouring, thus improving the safety and reliability of the pouring process.

[0039] The supporting components include a tail supporting component 240 and a head supporting component 250. One end of each supporting component abuts against the side plate 220, and the other end is fixedly attached to the core module 100. The pouring port 232 is located between the tail supporting component 240 and the head supporting component 250 on the same side of the core module 100. The length of the tail supporting component 240 overlapping with the molding space 231 is greater than the length of the head supporting component 250 overlapping with the molding space 231. The tail supporting component 240 is used to determine the tail limit of the precast staircase, and the head supporting component 250 is used to determine the head limit of the precast staircase, thus achieving side closure of the molding space 231 and ensuring safety during pouring. The greater overlap between the tail supporting component 240 and the molding space 231 allows the bottom of the precast stair section to have a longer edge for fitting the installation section. Meanwhile, the tail support assembly 240 and the head support assembly 250 are attached to the short side of the core module 100 and are perpendicular to the long side of the core module 100, so that the bottom and top of the staircase are perpendicular to the adjacent steps during the pouring of the staircase. It should be noted that in this embodiment, the support assembly is a support plate. By fixing the support plate to the corresponding position of the core module 100, the support of the core module 100 and the sealing effect of the molding space 231 are achieved.

[0040] It should be noted that in this embodiment, the support plates are symmetrically arranged on both sides of the core module 100, and the lengths of the forming surfaces 110 between the support plates on the same side are equal. In practical applications, the number of steps in the prefabricated staircase can also be adjusted by adjusting the position of the support plates without disassembling the core module 100.

[0041] In this embodiment, the core module 100 is a cube with a rectangular cross-section. During the prefabrication of the staircase, multiple core modules 100 are combined to form a molding surface 110. The short side of the cube corresponds to the molding surface 110 of the height of the prefabricated stair tread, and the long side of the cube corresponds to the molding surface 110 of the width of the prefabricated stair tread.

[0042] The tail support component 240 is fitted to the first stair tread height molding surface at the lower end of the stair section; the head support component 250 is set on the top surface of the stair section, parallel to the stair tread height.

[0043] The support frame 200 further includes a support frame 260, the bottom of which is fixedly connected to the base plate 210. The support frame 260 connects the ends of the two side plates 220 and is perpendicular to the base plate 210. The support frame 260 is used to hold the side plates 220 at a 90° angle to the base plate 210. The support frame 260 is perpendicularly fixed to both side plates 220 and the base plate 210, providing lateral tension to the side plates 220. This prevents staircase shape differences caused by tilting of the side plates 220 during use, improving the reliability and stability of the mold.

[0044] Furthermore, the support frame 260 is provided with strip-shaped holes at the left and right ends of the fixed side plate 220. After the core module 100 rotates, the thickness of the stair section increases or decreases. By moving the two side plates 220 in the thickness direction, the design thickness of the prefabricated stair section can be met.

[0045] The side plate 220 further includes a first groove 222 for fixing to the base plate 210. The base plate 210 also includes a first fixing hole. The projection of the first fixing hole on the base plate 210 is located within the projection of the first groove 222 on the base plate 210. The first groove 222 extends along the thickness direction of the side plate 220. The side plate 220 also includes a second fixing hole, and the support frame 260 further includes a second groove 261. The projection of the second fixing hole on the support frame 260 is located within the second groove 261. The second groove 261 extends along the width direction of the support frame 260. By adjusting the position of the baffle 222 within the first groove 222, the minimum distance between the two side plates 220 can be changed to accommodate different thickness requirements of the prefabricated stair section. In this embodiment, the side plate 220 is provided with a strip-shaped through hole connected to the base plate 210. The direction of the strip-shaped through hole is perpendicular to the horizontal length direction of the side plate 220, used to adjust the thickness of the stair section. The side plate 220 is fixed to the base plate 210 by bolts passing through the strip-shaped through holes in the side plate 220 that are fixed to the base plate 210. When manufacturing stairs with different tread widths, the core module 100 is rotated to adjust the tread width. Due to the different rotation angles of the core module 100, the width between the two side templates is different, thus affecting the thickness of the stair section. When adjusting the thickness of the stair section, the bolts connecting the side plate 220 and the base plate 210 are loosened. Since the through holes connecting the side plate 220 and the base plate 210 are strip-shaped through holes, they have adjustment space for moving the side template back and forth, so the position of the side plate 220 can be adjusted to meet the design requirements for manufacturing stair sections with different thicknesses.

[0046] The support frame 200 also includes a pad, which is sandwiched between adjacent core modules 100 and is fixedly attached to them. The pad allows adjustment of the tread height of the precast stair section, the tread width of the precast stair section can be adjusted by rotating the core module, and the number of steps in the precast stair section can be adjusted by changing the number of core modules. This design expands the application range of the stair section mold, improves its versatility, and reduces production costs. One end of the pad is flush with the molding surface 110, and the pad is parallel to the surface of the core module 100 to which it is attached. The pad not extending beyond the molding surface 110 and being parallel to the surface of the core module 100 ensures that the final cast staircase remains vertical, improving the accuracy and safety of the staircase.

[0047] In actual use, the production process is as follows:

[0048] 1. First, install and fix the support frame 260 on the base plate 210;

[0049] 2. Then fix the two side plates 220 onto the base plate 210 and the support frame 260;

[0050] 3. Then, determine the required step width and step height according to the requirements, and adjust the core module 100 accordingly. Add pads if necessary. Then, fix the first core module 100 to the base plate 210 at a specific angle by using the retaining component and pressure rod 270, and the positioning block 120 at the bottom of the first core module 100 is located in the positioning groove 211.

[0051] 4. The second core module 100 is fitted with the first core module 100 at the same angle, and the core module 100 is fixed to the base plate 210 by the pressure rod 270.

[0052] 5. Next, select the corresponding number of core modules 100 according to the number of steps, and assemble them sequentially into the mold using the method of fixing the second core module. Then, use the method of fixing the components and sealing the other side of the stair section to complete the enclosure of the two molded spaces 231.

[0053] 6. Finally, pour concrete into the two pouring ports 232 to complete the pouring process;

[0054] 7. Once the concrete reaches the strength required for demolding, the mold components, including the compression rods 270, side plates 220, and retaining components, composed of the mold support frame 200, can be used to lift and remove the two precast stair sections from the mold.

[0055] Through the above process, this mold can meet the production and prefabrication of stair sections with various sizes and numbers of steps, and can simultaneously complete the casting of two stair sections. The mold has a low loss rate, simple structure, and convenient operation, and has the advantages of high efficiency and low cost.

[0056] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A stair segment mold comprising a plurality of core modules (100), characterized in that, The stair section mold further comprises a support frame (200) comprising a fixedly connected maintaining assembly, a bottom plate (210) and a side plate (220), a containing space (230) is formed in the support frame (200), a plurality of the core modules (100) are arranged in the containing space (230), the adjacent core modules (100) are tightly fitted, the surfaces of the plurality of core modules (100) are combined to form a forming surface (110), the forming surface (110) faces the side plate (220) and is separated from the maintaining assembly to form a forming space (231) in the containing space (230), the forming space (231) is tightly fitted with the core module (100), the included angle of the core module (100) relative to the side plate (220) is adjustable, and a pouring opening (232) communicating with the forming space (231) is formed on the support frame (200).

2. The stairway section mold of claim 1, wherein, The bottom plate (210) is provided with a positioning groove (211) extending along the length direction of the bottom plate (210), the core module (100) further comprises a positioning block (120), the positioning groove (211) is located at the middle part of the bottom plate (210), and the positioning block (120) is arranged on the surface of the core module (100) facing the bottom plate (210), and the positioning block (120) is accommodated in the positioning groove (211).

3. The stairway section mold of claim 2, wherein, The positioning block (120) is a circular column, and the diameter of the positioning block (120) is matched with the width of the positioning groove (211); or The positioning block (120) is a prism, and the horizontal cross-sectional shape of the positioning block (120) is matched with the positioning groove (211).

4. The stairway section mold of claim 2, wherein, The support frame (200) further comprises a pressing rod (270), at least part of the structure of the pouring opening (232) is exposed to the pressing rod (270), the top of the side plate (220) is provided with a strip-shaped hole (221), the end of the pressing rod (270) is fixed with the strip-shaped hole (221), and the end of the pressing rod (270) can smoothly move in the strip-shaped hole (221).

5. The stairway section mold of claim 4, wherein, The support frame (200) further comprises a fixing member for fixing the pressing rod (270) and the core module (100), and the pressing rod (270) is connected with the core module (100) through the fixing member.

6. The stairway section mold of claim 1, wherein, The maintaining assembly is arranged in the containing space (230), the maintaining assembly is used for closing the forming space (231) in the horizontal direction in cooperation with the core module (100) and the side plate (220), and the maintaining assembly, the forming surface (110), the bottom plate (210) and the side plate (220) surround the forming space (231).

7. The stairway section mold of claim 6, wherein, The maintaining assembly includes a tail maintaining assembly (240) and a head maintaining assembly (250), one end of the maintaining assembly is in abutment with the side plate (220), the other end is fixedly attached to the core module (100), the pouring opening (232) is located between the tail maintaining assembly (240) and the head maintaining assembly (250) on the same side of the core module (100), the length of the tail maintaining assembly (240) coinciding with the forming space (231) is greater than the length of the head maintaining assembly (250) coinciding with the forming space (231).

8. The stairway section mold of claim 1, wherein, The support frame (200) further includes a support frame (260), the bottom of the support frame (260) is fixedly connected with the bottom plate (210), the support frame (260) is connected with the end of the two side plates (220), the support frame (260) is arranged perpendicularly to the bottom plate (210), and the support frame (260) is used for keeping the side plate (220) in a position of 90° with the bottom plate (210).

9. The stairway section mold of claim 8, wherein, The side plate (220) further includes a first sliding groove (222) for fixing with the bottom plate (210), the bottom plate (210) further includes a first fixing hole, the projection of the first fixing hole on the bottom plate (210) is located in the projection of the first sliding groove (222) on the bottom plate (210), and the first sliding groove (222) extends along the thickness direction of the side plate (220); and / or, The side plate (220) further includes a second fixing hole, the support frame (260) further includes a second sliding groove (261), the projection of the second fixing hole on the support frame (260) is located in the second sliding groove (261), and the second sliding groove (261) extends along the width direction of the support frame (260).

10. A stairway section mould according to any one of claims 1 to 9, characterised in that, The support frame (200) further includes a spacer plate, the spacer plate is clamped between adjacent core modules (100), the spacer plate is fixedly attached to the adjacent core modules (100), one end of the spacer plate is flush with the forming surface (110), and the surface of the core module (100) attached to the spacer plate is parallel to the spacer plate.

Images