Splicing device for three-section type assembled stair construction
By combining pads, blocks, support structures, base structures, and lifting structures, and utilizing hydraulic telescopic machines and lead screws, the position of the stairs can be precisely adjusted, solving the alignment problem during the splicing of prefabricated stairs and improving installation efficiency.
Patent Information
- Application Number
- CN202520461471.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing prefabricated stairs are difficult to align quickly during assembly, resulting in uneven installation and increasing the workload and complexity of operations for workers.
The system employs a splicing device that includes pads, blocks, support structures, base structures, lifting structures, and support beams. Through the cooperation of hydraulic telescopic machines and screw rods, the precise adjustment and alignment of the staircase position can be achieved.
It enables quick alignment of stairs and landings, simplifies the installation process, and improves installation efficiency.
Smart Images

Figure CN223974854U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of staircase splicing technology, and in particular to a splicing device for the construction of a three-section assembled staircase. Background Technology
[0002] Prefabricated construction refers to transferring a large amount of on-site work from traditional construction methods to factories. Building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are prefabricated in factories, transported to the construction site, and assembled on-site using reliable connection methods. It has the advantages of faster speed and lower production costs. Prefabricated stairs are one of the commonly used components in prefabricated construction. They are produced in component factories, then transported to the construction site for installation. After installation, they can be used immediately as on-site construction access, which is convenient and quick.
[0003] However, existing prefabricated staircases are quite large. When assembling them, the staircases are often placed into the grooves reserved on the fixed platform. During manual operation, due to the heavy weight of the prefabricated staircases, it is difficult to quickly align the staircases with the holes on the platform. This results in unevenness at the connection between the staircases and the fixed platform after installation. As a result, workers need to manually raise the bottom, which leads to a large workload for workers and a complicated operation process, resulting in low installation efficiency.
[0004] Therefore, it is necessary to provide a new three-section prefabricated staircase construction splicing device to solve the above-mentioned technical problems. Utility Model Content
[0005] The technical problem solved by this utility model is to provide a splicing device for a three-section assembled staircase that facilitates precise adjustment of the staircase's position and enables rapid alignment of the staircase during installation.
[0006] To solve the above-mentioned technical problems, the present invention provides a three-section prefabricated staircase construction splicing device comprising: a base plate on which the staircase is mounted; a support block fixed to the bottom surface of the base plate, the support block having a joint at its bottom end; a support structure connected at its top end to the bottom end of the support block via a joint, the support structure including a support rod and a support base, the support rod supporting the bottom surface of the support block, the support base being fixed to the bottom end of the support rod; and a base structure with the support base installed at both ends of the base structure surface, the base structure including a fixed plate, a crossbar, a support plate, and a sliding groove, the fixed plate having the sliding groove on its surface; and the support plate having a crossbar, ... The plate is fixed between the two fixed plates by the crossbar; a lifting structure is installed on the surface of the support plate, the lifting structure includes a positioning plate, a lead screw, a slide bar and a hydraulic telescopic mechanism, the positioning plate is fixed at both ends of the surface of the support plate, the hydraulic telescopic mechanism is installed on the surface of the positioning plate, the lead screw is connected in series with the hydraulic telescopic mechanism and the positioning plate, and the lead screw is threadedly connected to the hydraulic telescopic mechanism and rotatably connected to the positioning plate, the slide bar is fixed to the inner side wall of one end of the two fixed plates, and the hydraulic telescopic mechanism slides on the side wall of the slide bar; a support beam is fixed at both ends between the two sets of support rods respectively.
[0007] Preferably, the pad is provided with flat support plates at both ends, and the pad is inclined to support the top of the support rod at the angle corresponding to the staircase.
[0008] Preferably, the height difference between the left and right sets of support rods corresponds to the angle difference of the stair slope, and the support rods are telescopic.
[0009] Preferably, the support structure further includes a rolling ball and a support ball, wherein the rolling ball is rotatably connected to the center of the bottom surface of the support, and the support ball is rotatably connected to both ends of the bottom surface of the support.
[0010] Preferably, the ball slides inside the groove, and the support is slidably connected to the fixed plate via the ball.
[0011] Preferably, the bottom surface of the hydraulic telescopic machine is also provided with the rolling ball and the support ball, and the surface of the support plate is also provided with the sliding groove, and the hydraulic telescopic machine slides on the surface of the support plate through the rolling ball and the support ball.
[0012] Preferably, the bottom surface of the support beam is also provided with a joint at the center, and the support beam is connected to the hydraulic telescopic machine through this joint.
[0013] Compared with related technologies, the three-section prefabricated staircase splicing device provided by this utility model has the following beneficial effects:
[0014] This utility model provides a three-section assembly staircase construction splicing device. First, based on the location of the staircase, the position of the base structure installed below the landing platform is measured. The base structure is then installed according to the measured position. Next, the support structure and the lifting structure are installed sequentially. The support structure is installed with one end higher than the other, the height difference corresponding to the angle difference of the staircase. Then, the support beam is bolted to the upper end of the support structure, allowing the support beam to move synchronously with the extension and retraction of the upper end of the support structure. The support beam is then installed at the top of the lifting structure via a joint, allowing the lifting structure to control the up-down or left-right movement of the support beam through extension and retraction, thereby synchronously adjusting the position of the support structure. A pad is installed at the top of the support structure via a support block, making the pad a bridge supporting the staircase. By hoisting the staircase onto the pad, the support plates fixed at both ends of the pad restrict the position of the staircase, and the width of the support plates is less than the distance between the landing platform and the staircase at the included angle. Then, by manipulating the lifting structure, the staircase can be aligned with the landing platform, facilitating the calibration and installation of the staircase. Attached Figure Description
[0015] Figure 1 A schematic diagram of a preferred embodiment of the splicing device for the construction of a three-section assembled staircase provided by this utility model;
[0016] Figure 2 for Figure 1 The diagram shows the overall supporting three-dimensional display structure.
[0017] Figure 3 for Figure 1 A schematic diagram of the overall cross-section shown;
[0018] Figure 4 for Figure 3 The enlarged structural diagram of part A is shown.
[0019] The following are the labels in the diagram: 1. Support plate, 2. Support block, 3. Support structure, 31. Support rod, 32. Support, 33. Roller ball, 34. Support ball, 4. Base structure, 41. Fixed plate, 42. Crossbar, 43. Support plate, 44. Slide groove, 5. Lifting structure, 51. Positioning plate, 52. Screw rod, 53. Slide rod, 54. Hydraulic telescopic mechanism, 6. Support beam, 7. Staircase, 8. Connecting platform. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figures 1-4 ,in Figure 1 A schematic diagram of a preferred embodiment of the splicing device for the construction of a three-section assembled staircase provided by this utility model; Figure 2 for Figure 1 The diagram shows the overall supporting three-dimensional display structure. Figure 3 for Figure 1 A schematic diagram of the overall cross-section shown; Figure 4 for Figure 3 The enlarged structural diagram of section A is shown; the three-section prefabricated staircase construction splicing device includes: a base plate 1, on which the staircase 7 is mounted; a support block 2, fixed to the bottom surface of the base plate 1, with a joint at the bottom end of the support block 2; a support structure 3, the top end of which is connected to the bottom end of the support block 2 via a joint, the support structure 3 including a support rod 31 and a support 32, the support rod 31 supporting the bottom surface of the support block 2, and the support 32 fixed to the bottom end of the support rod 31; and a base structure 4, with the support 32 installed at both ends of the surface of the base structure 4, the base structure 4 including a fixing plate 41, a crossbar 42, a support plate 43, and a sliding groove 44, the surface of the fixing plate 41 having the sliding groove 44, and the support plate 43 being connected to the crossbar 42 via the crossbar 42. Rod 42 is fixed between the two fixed plates 41; lifting structure 5 is installed on the surface of the support plate 43, the lifting structure 5 includes a positioning plate 51, a lead screw 52, a slide rod 53 and a hydraulic telescopic mechanism 54, the positioning plate 51 is fixed at both ends of the surface of the support plate 43, the hydraulic telescopic mechanism 54 is installed on the surface of the positioning plate 51, the lead screw 52 is connected in series with the hydraulic telescopic mechanism 54 and the positioning plate 51, and the lead screw 52 is threadedly connected to the hydraulic telescopic mechanism 54 and rotatably connected to the positioning plate 51, the slide rod 53 is fixed to the inner side wall of one end of the two fixed plates 41, and the hydraulic telescopic mechanism 54 slides on the side wall of the slide rod 53; support beam 6, the two ends of the support beam 6 are respectively fixed between the two sets of support rods 31.
[0022] In the specific implementation process, such as Figure 1 , Figure 2 and Figure 3 As shown, the pad 1 has flat support plates at both ends, and the pad 1 is inclined to the top of the support rod 31 at the angle corresponding to the stair 7; this facilitates the restriction of the position of the stair by the flat support plates at both ends, thereby facilitating the installation of the stair.
[0023] In the specific implementation process, such as Figure 1 , Figure 2 and Figure 3As shown, the height difference between the left and right sets of support rods 31 corresponds to the angle difference of the inclined plane of the staircase 7, and the support rods 31 are telescopic; the bottom surface of the support beam 6 is also provided with a joint in the center, and the support beam 6 is connected to the hydraulic telescopic mechanism 54 through this joint; this facilitates the support of the pad 1 by the support rods 31, and at the same time, the height of the pad 1 can be adjusted by operating the hydraulic telescopic mechanism 54 to raise and lower the support beam 6. At the same time, by rotating the screw 52, the hydraulic telescopic mechanism 54 can be driven to slide on the support plate 43, thereby driving the pad 1 to move longitudinally through the support beam 6, thereby driving the staircase 7 to adjust its position.
[0024] In the specific implementation process, such as Figure 1 , Figure 2 and Figure 3 As shown, the support structure 3 further includes a rolling ball 33 and a support ball 34. The rolling ball 33 is rolled and connected to the center of the bottom surface of the support 32, and the support ball 34 is rolled and connected to both ends of the bottom surface of the support 32. The rolling ball 33 slides inside the groove 44, and the support 32 is slidably connected to the fixed plate 41 through the rolling ball 33. The bottom surface of the hydraulic telescopic machine 54 is also provided with the rolling ball 33 and the support ball 34, and the surface of the support plate 43 is also provided with the groove 44. The hydraulic telescopic machine 54 slides on the surface of the support plate 43 through the rolling ball 33 and the support ball 34. This allows the direction and position of the rolling ball 33 to be restricted through the groove 44, while the support ball 34 can support the balance of the support 32 and reduce the friction between the support 32 and the groove 44.
[0025] The working principle of the three-section prefabricated staircase splicing device provided by this utility model is as follows:
[0026] In use, firstly, the location of the staircase 7 is measured, and based on the measured data, the fixed plate 41 and the support plate 43 are erected on the ground directly below the landing 8. The support rod 31 is installed on the fixed plate 41 at both ends through the support 32. At the same time, two sets of hydraulic telescopic machines 54 are installed on the support plate 43 corresponding to the positions of the support rod 31, and the two sets of hydraulic telescopic machines 54 are connected in parallel. The two ends of the support beam are respectively fixed to the upper ends of the support rod 31 at both ends with bolts, so that the support beam can move synchronously with the extension and retraction of the upper end of the support rod 31. The support crossbeam 6 is installed on the top of the hydraulic telescopic machine 54 through the joint fixed at the center of the bottom surface, so that the hydraulic telescopic machine 54 can extend and retract through the crossbeam to extend and retract the support rod 31. Then, the pad 1 is installed on the top of the support rod 31 through the support block 2 fixed at the bottom surface, so that the support rod 31 can extend and retract through the support block 2 to extend and retract the pad 1. The staircase 7 is then hoisted onto the pad 1 using a lifting method. The support plates at both ends of the pad support the staircase 7, restricting its position. Simultaneously, the hydraulic telescopic mechanism 54 is raised and lowered, causing the support rod 31 to extend and retract, moving the staircase 7 on the pad 1 downwards. This brings the two ends of the staircase 7 closer to the landing platform 8. Then, by rotating the lead screw 52, the two sets of hydraulic telescopic mechanisms 54 slide along the grooves 44 on the support plate 43. This allows the support beam 6 to drive the support rod 31 to slide on the fixed plate 41 via the ball bearings 33 installed at the bottom. This causes the pad 1 to move the staircase 7 longitudinally, aligning the through holes at both ends of the staircase 7 with the fixed through holes of the landing platform 8. Finally, the hydraulic telescopic mechanism 54 is lowered, allowing the staircase 7 to rest on the landing platform 8. This device has the advantage of allowing for precise adjustment of the staircase 7's position and rapid alignment during installation.
[0027] Compared with related technologies, the three-section prefabricated staircase splicing device provided by this utility model has the following beneficial effects:
[0028] This utility model provides a splicing device for the construction of a three-section prefabricated staircase. First, based on the location of the staircase 7, the position for installing the base structure 4 below the connecting platform 8 is measured. According to the measured position, the base structure 4 is installed. Then, the support structure 3 and the lifting structure 5 are installed sequentially. The installed support structure 3 is positioned with one end higher than the other, and the height difference between the two ends corresponds to the angle difference of the staircase 7. Next, the support beam 6 is fixedly connected to the upper end of the support structure 3 with bolts, allowing the support beam 6 to move synchronously with the extension and retraction of the upper end of the support structure 3. The support beam 6 is then installed via a joint. At the top of the lifting structure 5, the lifting structure 5 can control the support beam 6 to move up and down or left and right by telescopic control, thereby driving the support structure 3 to adjust its position synchronously. The pad 1 is installed on the top of the support structure 3 by the support block 2, so that the pad 1 becomes a bridge supporting the stair 7. By hoisting the stair 7 onto the pad 1, the support plates fixed at both ends of the pad 1 can restrict the position of the stair 7, and the width of the support plate is less than the distance between the connecting platform 8 and the stair 7. Then, by operating the lifting structure 5, the stair 7 can be aligned with the connecting platform 8, which facilitates the calibration and installation of the stair 7.
[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A splicing device for three-stage assembly of a stair construction, characterized in that, Include; The base plate (1), the stairs (7) are erected on the surface of the base plate (1); The support block (2) is fixed to the bottom surface of the base plate (1), and the bottom end of the support block (2) is provided with a joint; The support structure (3) is connected to the bottom end of the support block (2) through the joint, and the support structure (3) comprises a support rod (31) and a support base (32), the support rod (31) is supported on the bottom surface of the support block (2), and the support base (32) is fixed to the bottom end of the support rod (31); The base structure (4) is installed on both ends of the surface of the base structure (4), and the base structure (4) comprises a fixed plate (41), a cross bar (42), a support plate (43) and a sliding groove (44), the surface of the fixed plate (41) is provided with the sliding groove (44), and the support plate (43) is fixed to the middle of the two fixed plates (41) through the cross bar (42); The lifting structure (5) is installed on the surface of the support plate (43), and the lifting structure (5) comprises a positioning plate (51), a lead screw (52), a sliding rod (53) and a hydraulic telescopic machine (54), the positioning plate (51) is fixed to both ends of the surface of the support plate (43), the hydraulic telescopic machine (54) is installed on the surface of the positioning plate (51), the lead screw (52) is connected in series with the hydraulic telescopic machine (54) and the positioning plate (51), and the lead screw (52) is threadedly connected with the hydraulic telescopic machine (54) and rotationally connected with the positioning plate (51), the sliding rod (53) is fixed to the inner side wall of one end of the two fixed plates (41), and the hydraulic telescopic machine (54) slides on the side wall of the sliding rod (53); The support beam (6) is fixed between the two groups of support rods (31) respectively.
2. The splicing device for three-stage assembly stair construction according to claim 1, characterized in that, Both ends of the base plate (1) are provided with plane support plates, and the base plate (1) is supported on the top end of the support rod (31) in a slope corresponding to the angle of the stairs (7).
3. The splicing device for three-stage assembled stair construction according to claim 1, characterized by The height difference between the two groups of support rods (31) corresponds to the angle difference of the slope of the stairs (7), and the support rod (31) has telescopic property.
4. The splicing device for three-stage assembled stair construction according to claim 1, characterized by The support structure (3) further comprises a rolling ball (33) and a supporting ball (34), the rolling ball (33) is rollingly connected to the middle of the bottom surface of the support base (32), and the supporting ball (34) is rollingly connected to both ends of the bottom surface of the support base (32).
5. The splicing device for three-stage assembled stair construction according to claim 4, characterized by The rolling ball (33) slides in the sliding groove (44), and the support base (32) is slidingly connected between the rolling ball (33) and the fixed plate (41).
6. The splicing device for three-segment assembly stairs construction according to claim 4, characterized in that, The bottom surface of the hydraulic telescopic machine (54) is also provided with the rolling ball (33) and the supporting ball (34), and the surface of the support plate (43) is also provided with the sliding groove (44), and the hydraulic telescopic machine (54) slides on the surface of the support plate (43) through the rolling ball (33) and the supporting ball (34).
7. The splicing device for three-stage assembled stair construction according to claim 1, characterized by The support crossbeam (6) is also provided with a joint in the middle of the bottom surface, and the support crossbeam (6) is connected with the hydraulic telescopic machine (54) through the joint.