Stair form

Abstract

The present application belongs to the building construction mold, specifically relates to a kind of stair pouring mold, including support frame body and several facade templates, the facade template is connected with support frame body by connecting component, and the several facade templates are arranged at equal intervals;The back of the facade template is provided with the reversible footboard, and the footboard can be set on the facade template for pouring the next step.The stair pouring mold of the present application can realize the integration of foot support and stair pouring mold, the footboard is convenient, and also does not affect concrete pouring.

Description

Technical Field

[0001] This invention relates to the field of building staircase molding mold technology, and more specifically, to a staircase casting mold. Background Technology

[0002] Using steel formwork and steel support frames, a molded staircase can be constructed as a single unit, allowing for rapid, one-time molding and eliminating the cumbersome process of splicing traditional wooden formwork staircases. After the staircase is formed and the concrete has solidified to a certain extent, foot support frames can be erected on each step, allowing construction workers to walk on the stairs. Even if the concrete is not completely solidified, walking is still possible because all the steel formwork is supported by the steel support frames. The foot support frames are erected on the steel formwork of each step, and the force is transferred to the steel support frames, preventing damage to the concrete. However, existing foot support frames need to be installed after pouring, making stacking and dismantling cumbersome. Summary of the Invention

[0003] This invention addresses the problem that existing foot support frames are cumbersome to stack and disassemble, by providing a stair pouring mold that integrates the foot support with the stair pouring mold, making it convenient to step on without affecting concrete pouring.

[0004] The first technical solution of the present invention is as follows:

[0005] A staircase casting mold includes a support frame and several facade templates. The facade templates are connected to the support frame via connecting components, and the several facade templates are arranged at equal intervals. A flip-up foot pedal is provided on the back of each facade template, and the foot pedal can be placed on the facade template used for casting the next step.

[0006] Optionally, a spacing adjustment mechanism is provided between the connecting component and the supporting frame to adjust the spacing between the facade templates.

[0007] The second technical solution of the present invention is as follows:

[0008] A staircase casting mold includes a support frame and several facade templates. The facade templates are connected to the support frame via connecting components, and the several facade templates are arranged at equal intervals. A spacing adjustment mechanism is provided between the connecting components and the support frame to adjust the spacing between the facade templates. A flip-up footboard is provided on the back of each facade template.

[0009] The staircase casting mold also includes a support mechanism for supporting the foot treads, the support mechanism comprising:

[0010] The support plate is slidably arranged along the vertical direction of the facade template, and can also be slidably arranged along the support frame.

[0011] The sprocket and chain assembly includes a first guide sprocket, a second guide sprocket, and a chain fixedly connected at both ends. Two first guide sprockets are provided and arranged on the support plate, and the second guide sprocket is arranged on the rotation shaft of the foot pedal.

[0012] A locking assembly includes a locking component for locking a first guide sprocket. The locking component is connected to a rotary shaft via a connecting rod, and is used so that when the foot pedal is applied, the rotary shaft can drive the locking component to lock the first guide sprocket.

[0013] Optionally, parallel sliding groove structures are provided between the support plate and the support frame, and between the connecting component and the support frame.

[0014] Optionally, the facade template is provided with a sliding sleeve for fitting the support plate, so that the support plate can be slidably arranged along the vertical direction of the facade template.

[0015] Optionally, the locking component includes an arc-shaped meshing tooth located at one end of the connecting rod, and a locking gear is coaxially fixed on the first guide sprocket. The connecting rod can drive the arc-shaped meshing tooth to mesh with the locking gear, thereby locking the locking gear.

[0016] Optionally, the locking component and the support plate are slidably connected in the vertical direction via a guide rail. A return spring is also provided between the locking component and the support plate. The return spring can pull the locking component to a disengaged and locked state when the foot pedal is not subjected to force.

[0017] Optionally, the pedal is sleeved on the rotary shaft via a ring, allowing the pedal to rotate around the rotary shaft. The rotary shaft is provided with a limit pin, and the ring is provided with a guide groove. The guide groove cooperates with the limit pin to limit the rotation angle of the pedal.

[0018] Optionally, the rotation angle is less than 90°.

[0019] Optionally, the slewing axis of the pedal is configured in a block support beam on the back of the facade template.

[0020] The technical solution of the present invention has at least the following beneficial effects:

[0021] The staircase casting mold of the present invention integrates the foot pedal with the entire mold body by setting a flip-up foot pedal on the back of the facade template, eliminating the need for separate configuration and saving the trouble of installation and disassembly. At the same time, the foot pedal adopts a flip-up structure design, which can be flipped up when pouring the steps to ensure the normal implementation of concrete pouring. After the concrete solidifies, the foot pedal can be lowered to facilitate workers to go up and down the stairs. The operation is simple and convenient.

[0022] The staircase casting mold of the present invention, by providing a support mechanism for supporting the foot treads, can bear part of the force when the worker steps on it, thus avoiding the entire weight of the worker being borne by the facade formwork, which would cause the steps to be damaged before they are fully hardened; at the same time, it can also speed up the time when the staircase is put into use and accelerate the construction period of the overall building. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the staircase casting mold structure according to Embodiment 1 of the present invention;

[0024] Figure 2 This is a partial sectional side view of the staircase casting mold of Embodiment 1 of the present invention;

[0025] Figure 3 This is a partial sectional side view of the staircase casting mold in another usage state of Embodiment 1 of the present invention;

[0026] Figure 4 This is a partial sectional side view of the staircase casting mold of Embodiment 2 of the present invention;

[0027] Figure 5 This is a partial sectional view of the main view of the staircase casting mold according to Embodiment 2 of the present invention;

[0028] Figure 6 This is a partial sectional view of the other side of the staircase casting mold of Embodiment 2 of the present invention;

[0029] Figure 7 for Figure 6 Enlarged view of part a.

[0030] Figure label:

[0031] 110-Support frame, 120-Face template, 130-Connecting component, 140-Foot pedal, 141-Ring, 142-Limit pin, 200-Support mechanism, 210-Chain, 220-First guide sprocket, 230-Locking component, 240-Reset spring, 250-Connecting rod, 260-Second guide sprocket, 260, 270-Support plate, 280-Sliding sleeve. Detailed Implementation

[0032] Example 1

[0033] Reference Figures 1-3 The staircase casting mold of the present invention includes a support frame 110 and several facade templates 120. The facade templates 120 are connected to the support frame 110 via connecting components 130. The several facade templates 120 are arranged at equal intervals. The support frame 110 can be welded into an irregular frame structure using channel steel or the like. The frame structure is designed with reference to the overall staircase structure, including a staircase section and a landing section (i.e., rest platforms at both ends). The staircase section adopts an inclined structure, with the inclination angle designed according to the staircase requirements. Support columns are set at both ends of the support frame to support the entire support frame. Inside the support frame 110 of the staircase section, the facade templates 120 are connected via connecting components 130 to form the staircase casting mold. In addition, to realize the staircase casting, a support base plate is also needed below the staircase casting mold of this embodiment, and side plates are installed on both sides. Then, concrete can be poured to complete the staircase casting.

[0034] The connecting component 130 can be made of angle steel and is bolted to the supporting frame 110 and the facade template 120. To allow for adjustable spacing between adjacent facade templates 120, a spacing adjustment mechanism is provided between the connecting component 130 and the supporting frame 110. This mechanism adjusts the spacing between facade templates 120. Specifically, the spacing adjustment mechanism includes several grooves on the supporting frame 110. The bolts of the connecting component 130 are fastened to the supporting frame 110 within these grooves. Loosening the bolts allows for easy adjustment of the sliding movement of the connecting component 130 and the facade template 120 on the supporting frame 110, thereby adjusting the spacing between facade templates 120. This provides better adaptability for staircases with different spacing requirements.

[0035] A flip-up foot pedal 140 is installed on the back of the facade formwork 120. Hinges are used to connect the foot pedal 140 and the facade formwork 120. The foot pedal 140 can be erected on the facade formwork 120 used for pouring the next step. This method allows the facade formwork 120 of the next step to bear some of the weight when workers step on it, preventing the entire weight of the worker from being borne by that step's facade formwork 120. By installing the flip-up foot pedal 140 on the back of the facade formwork 120, the foot pedal 140 is integrated with the entire mold body, eliminating the need for separate configuration and saving the trouble of installation, disassembly, and stacking. Furthermore, the flip-up design of the foot pedal 140 allows it to be flipped up during the pouring of the steps, ensuring the normal implementation of concrete pouring. After the concrete has solidified, the foot pedal 140 can be lowered, facilitating workers' access to and from the stairs. The operation is simple and convenient.

[0036] Example 2

[0037] Reference Figures 4-7 The staircase casting mold of the present invention includes a support frame 110 and several facade templates 120. The facade templates 120 are connected to the support frame 110 via connecting components 130. The several facade templates 120 are arranged at equal intervals. The support frame 110 can be welded into an irregular frame structure using channel steel or the like. The frame structure is designed with reference to the overall staircase structure, including a staircase section and a landing section (i.e., rest platforms at both ends). The staircase section adopts an inclined structure, with the inclination angle designed according to the staircase requirements. Support columns are set at both ends of the support frame to support the entire support frame. Inside the support frame 110 of the staircase section, the facade templates 120 are connected via connecting components 130 to form the staircase casting mold. In addition, to realize the staircase casting, a support base plate is also needed below the staircase casting mold of this embodiment, and side plates are installed on both sides. Then, concrete can be poured to complete the staircase casting.

[0038] The connecting component 130 can be made of angle steel and is bolted to the supporting frame 110 and the facade template 120. To allow for adjustable spacing between adjacent facade templates 120, a spacing adjustment mechanism is provided between the connecting component 130 and the supporting frame 110. This mechanism adjusts the spacing between facade templates 120. Specifically, the spacing adjustment mechanism includes several grooves on the supporting frame 110. The bolts of the connecting component 130 are fastened to the supporting frame 110 within these grooves. Loosening the bolts allows for easy adjustment of the sliding movement of the connecting component 130 and the facade template 120 on the supporting frame 110, thereby adjusting the spacing between facade templates 120. This provides better adaptability for staircases with different spacing requirements.

[0039] A flip-up foot pedal 140 is installed on the back of the facade formwork 120. The foot pedal 140 is connected by flipping and overlapping or by using other limiting mechanisms. Since the force on the foot pedal 140 is borne by the facade formwork 120, and the connection between the inner formwork and the supporting frame 110 is adjusted by a combination of fastening bolts and sliding grooves, this connection structure is prone to instability and loosening when pressure is applied by foot. Therefore, the concrete needs to solidify to a certain degree; otherwise, the facade formwork 120 may be disturbed when foot is applied, potentially damaging the concrete.

[0040] To address the aforementioned issues, the staircase casting mold in this embodiment further includes a support mechanism 200 for supporting the foot treads 140. The support mechanism 200 distributes some of the force, thereby reducing the disturbance to the facade formwork 120 when stepping on it, effectively preventing damage to the concrete, and allowing it to be used earlier, thus saving construction time.

[0041] Specifically, the support mechanism 200 includes a support plate 270, a sprocket and chain assembly, and a locking assembly. The support frame 110 is also provided with a sliding groove structure. The support plate 270 is inserted into the sliding groove structure via at least two pins, thus being confined within the sliding groove structure. The sliding groove structures between the support plate 270 and the support frame 110, and between the connecting component 130 and the support frame 110, are arranged in parallel. This allows the support plate 270 to move along with the facade template 120 during adjustment. Simultaneously, the facade template 120 is provided with a mechanism for fitting the support. The sliding sleeve 280 of plate 270 allows the support plate 270 to slide along the vertical direction of the facade template 120. This ensures that when the support mechanism 200 is under stress, the force is transmitted to the support frame 110 through the support plate 270, and not to the facade template 120. The arrangement of the sliding sleeve 280 is only to drive the support plate 270 to move when the facade template 120 is moved and adjusted, thereby realizing that the support plate 270 can slide along the vertical direction of the facade template 120 and also slide along the support frame 110.

[0042] The sprocket and chain assembly includes a first guide sprocket 220, a second guide sprocket 260, and a chain 210 fixedly connected at both ends. There are two first guide sprockets 220, which are arranged on the support plate 270. The second guide sprocket 260 is arranged on the rotation shaft of the foot pedal 140. The two ends of the chain 210 are fixed to the support frame 110. The chain 210 passes through the first guide sprocket 220, the second guide sprocket 260, and the first guide sprocket 220 from one end to the other end. The second guide sprocket 260 is located on the other side of the two first guide sprockets 220. When not being stepped on, the second guide sprocket 260 and the chain 210 are in a non-disengaged state. Thus, when the support plate 270 is slidable, the two first guide sprockets 220 are equivalent to a moving point on a straight line, realizing the rapid movement and adjustment of the support plate 270.

[0043] The locking assembly includes a locking component 230, which locks the first guide sprocket 220. The locking component 230 is connected to a rotating shaft via a connecting rod 250. When force is applied to the foot pedal 140, the rotating shaft drives the locking component 230 to lock the first guide sprocket 220. The locking component 230 includes an arc-shaped meshing tooth located at one end of the connecting rod 250. A locking gear is coaxially fixed on the first guide sprocket 220. The connecting rod 250 can drive the arc-shaped meshing tooth to mesh with the locking gear, thereby locking the locking gear. The locking component 230 and the support plate 270 are slidably connected in the vertical direction via a guide rail. A return spring 240 is also provided between the locking component 230 and the support plate 270. The return spring 240 can pull the locking component 230 to a disengaged, locked state when no force is applied to the foot pedal 140.

[0044] The second guide sprocket 260 is supported by the connecting rod 250, resulting in it being in a non-engaged state with the chain 210. Only when the foot is pedaled and force is applied to the second guide sprocket 260 will it engage with the chain 210. At the same time, the locking component 230 on the upper part of the connecting rod 250 will lock the two first guide wheels, thus forming a locked state. The entire support plate 270 will not slide along the chain 210, forming a fixed point on a straight line. To achieve synchronization of the above two actions, the travel distance of the locking component 230 is the same as the travel distance of the second guide sprocket 260. The force applied to the foot pedal 140 is transmitted to the support frame 110 through the rotating shaft, chain 210, and support plate 270, without contacting the facade template 120. This greatly reduces the stress on the facade template 120.

[0045] The foot pedal is fitted onto a rotating shaft via a ring 141, allowing it to rotate around the shaft. A limit pin 142 is mounted on the rotating shaft, and a guide groove is provided on the ring 141. The guide groove engages with the limit pin 142 to limit the rotation angle of the foot pedal, which is less than 90°. The rotating shaft of the foot pedal is located within the square support beam on the back of the facade formwork 120. When the entire foot pedal 140 can rotate no more than 90°, it is in a tilted-up position to ensure normal construction, and in a slightly tilted-up position (not completely flat). When stepped on, the foot pedal 140 is limited by the rotating shaft, the movement is transmitted through the connecting rod 250, and finally limited by the guide rail, maintaining a horizontal position and preventing it from tipping over when stepped on.

[0046] Of course, the entire system relies on the chain 210 to move and lock, and there is a certain gap in the chain, so there will be a slight disturbance to the facade formwork 120. However, this disturbance has been reduced to a minimum, which can greatly reduce the damage to the concrete.

Claims

1. A staircase casting mold, comprising a supporting frame and a plurality of facade templates, wherein the facade templates are connected to the supporting frame via connecting components, and the plurality of facade templates are arranged at equal intervals; a spacing adjustment mechanism is provided between the connecting components and the supporting frame for adjusting the spacing between the facade templates; a flip-up footboard is provided on the back of each facade template; characterized in that, The staircase casting mold also includes a support mechanism for supporting the foot treads, the support mechanism comprising: The support plate is slidably arranged along the vertical direction of the facade template, and can also be slidably arranged along the support frame. A sprocket and chain assembly includes a first guide sprocket, a second guide sprocket, and a chain fixedly connected at both ends. Two first guide sprockets are provided and arranged on the support plate, and the second guide sprocket is arranged on the rotation shaft of the foot pedal. A locking assembly, comprising a locking component for locking a first guide sprocket, the locking component being connected to a rotary shaft via a connecting rod, wherein when the foot pedal is applied, the rotary shaft can drive the locking component to lock the first guide sprocket; Parallel sliding groove structures are provided between the support plate and the support frame, and between the connecting component and the support frame. The facade template is provided with a sliding sleeve for fitting the support plate, so that the support plate can be slidably arranged along the vertical direction of the facade template. The pedal is fitted onto the rotating shaft via a ring, allowing the pedal to rotate around the rotating shaft. The rotating shaft is provided with a limit pin, and the ring is provided with a guide groove. The guide groove cooperates with the limit pin to limit the rotation angle of the pedal.

2. The staircase casting mold according to claim 1, characterized in that, The locking component includes an arc-shaped meshing tooth located at one end of the connecting rod. A locking gear is coaxially fixed on the first guide sprocket. The connecting rod can drive the arc-shaped meshing tooth to mesh with the locking gear, thereby locking the locking gear.

3. The staircase casting mold according to claim 2, characterized in that, The locking component and the support plate are slidably connected in the vertical direction via a guide rail. A return spring is also provided between the locking component and the support plate. The return spring can pull the locking component to a disengaged and locked state when the foot pedal is not subjected to force.

4. The staircase casting mold according to claim 1, characterized in that, The rotation angle is less than 90°.

5. The staircase casting mold according to claim 1, characterized in that, The slewing shaft of the pedal is configured in the block support beam on the back of the facade template.

Images