Prefabricated building prefabricated stair splicing structure

Abstract

The application discloses a prefabricated stair splicing structure of fabricated building, and relates to the technical field of stairs, which comprises a stair plate, first and last steps are integrally arranged at the two ends of the stair plate, a plurality of mounting grooves are equidistantly arranged between the first and last steps on the upper portion of the stair plate, through limiting grooves are arranged on the inner sides of each mounting groove, a step is arranged on each mounting groove, and handrail structures are arranged on the two sides of the stair plate. The prefabricated stair splicing structure of fabricated building can quickly complete the installation of the prefabricated stair, does not need complex installation steps, has high stability after splicing, is not prone to loosening, can quickly disassemble the stair when not needed, is convenient and fast, and the disassembling structure does not affect the normal use of the stair.

Description

Technical Field

[0001] This invention relates to the field of staircase technology, specifically to a prefabricated staircase splicing structure for prefabricated buildings. Background Technology

[0002] Prefabricated construction is a new type of construction method. It involves manufacturing some or all of the building components in a prefabrication plant, transporting them to the construction site, and assembling them using reliable installation methods and machinery to create a functional building. Compared to the traditional construction methods for the main building and interior decoration, prefabricated construction helps construction companies standardize product quality, shorten delivery cycles, reduce energy consumption, reduce environmental pollution, and control construction costs, making it the mainstream of the building decoration industry.

[0003] As an important part of a building, stairs need to withstand the weight of people and various forces. Therefore, the structural stability and safety of stairs are crucial. In traditional construction methods, stairs are usually built on-site. This method requires a lot of manpower and resources and has a long construction period. Moreover, due to the environmental limitations of on-site construction, the construction quality of stairs is often difficult to guarantee. To solve these problems, a prefabricated stair splicing structure has been proposed. This structure prefabricates the various parts of the stairs in a factory and then transports them to the construction site for splicing and installation. This method can greatly improve the construction efficiency and quality of stairs and reduce the time and labor costs of on-site construction.

[0004] However, existing prefabricated staircase splicing structures still have some problems. For example, the connection parts of the stairs are prone to loosening, which affects the service life and safety of the stairs. In addition, the splicing structure of stairs often requires complex construction processes, which increases the difficulty and cost of construction. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a prefabricated staircase splicing structure for prefabricated buildings, which solves the problems of poor stability and complex installation process of traditional prefabricated spliced ​​staircases.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated staircase splicing structure for prefabricated buildings, comprising a stair slab, wherein a first step and a last step are integrally formed at both ends of the stair slab, and a plurality of mounting grooves are equidistantly arranged on the upper part of the stair slab between the first step and the last step, wherein a through limiting groove is provided on both sides of the interior of each mounting groove, and a step is provided on each mounting groove, and a handrail mechanism is also provided on both sides of the stair slab.

[0007] The step includes an insert block that fits into the mounting slot. The insert block has a hollow interior and a step block on its upper side. The upper part of the step block has a movable slot. The lower part of the movable slot has a strip groove that communicates with the interior of the insert block. A quick-release mechanism is provided in the movable slot. Both sides of the insert block have locking parts. The quick-release mechanism drives the movement of the locking parts, allowing the step to be installed into the mounting slot on the stair tread, thus completing the stair assembly.

[0008] Preferably, the quick-release mechanism includes a movable block that is laterally slidably disposed in the movable groove. A movable plate is disposed on the bottom side of one side of the movable block. The lower side of the movable plate slides through the interior of the strip groove and is connected to a rack. A gear disk is engaged on the bottom side of one end of the rack. The gear disk is located in the middle position inside the insert block. A limit shaft is integrally formed through the center of one side of the gear disk. The two ends of the limit shaft are respectively connected to the two interior surfaces of the insert block. An eccentric rod is hinged to the edge of one side of the gear disk.

[0009] Preferably, the locking component includes a locking plate that slides laterally through one side of the insert block. A baffle is provided on the side of the locking plate inside the insert block. The side of the baffle near the locking plate and located above and below it is fixedly connected to the inner wall of the insert block by a spring. The end of the eccentric rod away from the gear disk is hinged to the side of the baffle away from the locking plate. A protrusion is provided on the side of the locking plate away from the baffle.

[0010] Preferably, after the insert is fully inserted into the mounting groove on the stair slab, the position of the locking plate corresponds to the limiting groove on the stair slab, and when the spring is in the reset state, both the locking plate and the protrusion pass through the limiting groove.

[0011] Preferably, the length of the strip groove is greater than the length of the rack. By moving the moving block, when the lower side of the other end of the rack meshes with the gear disk, the clamping plate and the protrusion are just moved out of the limiting groove on the stair plate, and the side of the protrusion away from the clamping plate is flush with the side of the insert block.

[0012] Preferably, the handrail mechanism includes a handrail plate and handrails of the same number as the steps. The upper part of the protrusion is provided with a threaded hole, and the lower end of the handrail is threaded into the threaded hole on the protrusion. The bottom of the handrail plate is provided with a locking hole that matches the upper end of each handrail, and the handrail plate is locked to the upper end of each handrail through the locking hole.

[0013] Preferably, the handrail is a telescopic rod structure.

[0014] This invention provides a prefabricated staircase splicing structure for prefabricated buildings, which has the following advantages compared with the prior art:

[0015] 1. This prefabricated staircase splicing structure for prefabricated buildings can quickly complete the installation of prefabricated stairs without complicated installation steps. After splicing, it has high stability and is not prone to loosening. When not needed, the stairs can also be quickly disassembled, which is convenient and quick. The disassembly and assembly structure does not affect the normal use of the stairs.

[0016] 2. The prefabricated staircase splicing structure of this prefabricated building, by setting up a handrail mechanism, further improves the stability of the staircase, and the handrail mechanism also improves the safety of the staircase. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the stair tread of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the stepped steps of the present invention;

[0020] Figure 4 This is a schematic diagram showing the disassembled structure of the stepped steps of the present invention;

[0021] Figure 5 This is a schematic diagram of the handrail mechanism of the present invention.

[0022] In the diagram: 1. Stair tread; 2. First step; 3. Last step; 4. Mounting groove; 5. Limiting groove; 6. Step; 61. Insert block; 62. Step block; 63. Movable groove; 64. Quick release mechanism; 641. Moving block; 642. Moving plate; 643. Rack; 644. Gear disk; 645. Limiting shaft; 646. Eccentric rod; 65. Clamp; 651. Clamping plate; 652. Baffle; 653. Spring; 654. Protrusion; 66. Strip groove; 67. Flange plate; 68. Positioning groove; 7. Handrail mechanism; 71. Handrail; 72. Handrail plate. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-5 This invention provides two technical solutions:

[0025] Example 1

[0026] Please see Figure 1-2In this embodiment of the invention, a prefabricated staircase splicing structure for prefabricated buildings includes a stair slab 1. The two ends of the stair slab 1 are integrally formed with a first step 2 and a last step 3. The upper part of the stair slab 1 is provided with a plurality of installation grooves 4 at equal intervals between the first step 2 and the last step 3. Each installation groove 4 has a through limiting groove 5 on both sides inside, and each installation groove 4 is provided with a step 6. Handrail mechanisms 7 are also provided on both sides of the stair slab 1.

[0027] Please see Figure 3-4 In this embodiment of the invention, the step 6 includes an insert 61 that is adapted to the mounting groove 4. The insert 61 has a hollow interior and a step block 62 is provided on the upper side of the insert 61. A movable groove 63 is provided on the upper part of the step block 62. A strip groove 66 communicating with the interior of the insert 61 is provided on the lower side of the movable groove 63. A quick-release mechanism 64 is provided in the movable groove 63. A locking piece 65 is provided on both sides of the insert 61. The quick-release mechanism 64 drives the movement of the locking piece 65 so that the step 6 is installed into the mounting groove 4 on the stair tread 1, thus completing the splicing of the staircase.

[0028] Please see Figure 3-4 In this embodiment of the invention, the quick-release mechanism 64 includes a movable block 641 that is laterally slidably disposed in the movable groove 63. A movable plate 642 is disposed at the bottom of one side of the movable block 641. The lower side of the movable plate 642 slides through the interior of the strip groove 66 and is connected to a rack 643. A gear disk 644 is engaged at the bottom side of one end of the rack 643. The gear disk 644 is located at the middle position inside the insert block 61. A limiting shaft 645 is integrally formed through the center of one side of the gear disk 644. The two ends of the limiting shaft 645 are respectively connected to the two interior surfaces of the insert block 61. An eccentric rod 646 is hinged to the edge of one side of the gear disk 644.

[0029] Please see Figure 3-4 In this embodiment of the invention, the card 65 includes a card plate 651 that slides laterally through one side of the insert block 61. A baffle 652 is provided on the side of the card plate 651 located inside the insert block 61. The side of the baffle 652 near the card plate 651 and located above and below it is fixedly connected to the inner wall of the insert block 61 by a spring 653. The end of the eccentric rod 646 away from the gear disk 644 is hinged to the side of the baffle 652 away from the card plate 651. A protrusion 654 is provided on the side of the card plate 651 away from the baffle 652.

[0030] In the above scheme: During installation, the movable block 641 is pushed to slide in the movable groove 63 on the step block 62. The movable block 641 causes the movable plate 642 to slide in the strip groove 66. The rack 643 at the bottom of the movable plate 642 drives the gear disk 644 meshing with it to rotate. The gear disk 644 drives the two eccentric rods 646 to make eccentric movements. The two eccentric rods 646 pull the two clamping plates 651 to move, so that the protrusion 654 moves to be flush with one side of the insert block 61. After being flush, the insert block 61 is fully inserted into the mounting groove 4 on the stair tread 1. At this time, the clamping plate... 651 and protrusion 654 will align with the limiting groove 5 on the stair tread 1. After alignment, release the moving block 641, and the spring 653 will reset the locking plate 651, allowing the locking plate 651 and protrusion 654 to pass through the limiting groove 5 on the stair tread 1 and fix the insert 61. After the insert 61 is fully inserted into the mounting groove 4, the flange plate 67 on the step block 62 will be inserted into the positioning groove 68 on the adjacent step block 62, increasing the stability of the step 6 installation. Then, the next step 6 is installed according to the above method to complete the stair splicing work.

[0031] For further details, please refer to Figure 3-4 In this embodiment of the invention, after the insert 61 is fully inserted into the mounting groove 4 on the stair tread 1, the clamping plate 651 corresponds to the position of the limiting groove 5 on the stair tread 1, and when the spring 653 is in the reset state, the clamping plate 651 and the protrusion 654 both pass through the limiting groove 5, so that they fix the insert 61 in the mounting groove 4, thereby completing the installation and splicing of the step 6.

[0032] For further details, please refer to [link / reference]. Figure 3-4 In this embodiment of the invention, the length of the strip groove 66 is greater than the length of the rack 643. By moving the moving block 641, when the lower side of the other end of the rack 643 meshes with the gear disk 644, the clamping plate 651 and the protrusion 654 are just moved out of the limiting groove 5 on the stair plate 1, and the side of the protrusion 654 away from the clamping plate 651 is flush with the side of the insert block 61.

[0033] Example 2 differs from Example 1 in that:

[0034] Please see Figure 1 and Figure 4-5 In this embodiment of the invention, the handrail mechanism 7 includes a handrail 72 and a number of handrails 71 equal to the number of steps 6. The upper part of the protrusion 654 is provided with a threaded hole, and the lower end of the handrail 71 is threaded into the threaded hole on the protrusion 654. The bottom of the handrail 72 is provided with a locking hole that matches the upper end of each handrail 71, and the handrail 72 is locked to the upper end of each handrail 71 through the locking hole.

[0035] In the above scheme: after the staircase is assembled, the handrail 71 is installed into the threaded holes on each protrusion 654 by threading. After the handrail 71 is installed, the locking holes at the bottom of the handrail 72 are locked into the upper end of each handrail 71 to complete the installation of the handrail mechanism 7. The installation of the handrail mechanism 7 further improves the installation firmness of the step 6, making it less prone to loosening.

[0036] For further details, please refer to Figure 5 In this embodiment of the invention, the handrail 71 is a telescopic rod structure. By adjusting the telescopic rod structure, the height of the handrail 71 can be adjusted to suit people of different heights.

[0037] Working principle: During installation, the movable block 641 is pushed to slide in the movable groove 63 on the step block 62. The movable block 641 causes the movable plate 642 to slide in the strip groove 66. The rack 643 at the bottom of the movable plate 642 drives the gear disk 644 meshing with it to rotate. The gear disk 644 drives the two eccentric rods 646 to make eccentric movements. The two eccentric rods 646 pull the two clamping plates 651 to move, so that the protrusion 654 moves to be flush with one side of the insert 61. After being flush, the insert 61 is fully inserted into the mounting groove 4 on the stair tread 1. At this time, the clamping plate 651 and the protrusion 654 will be aligned with the limiting groove 5 on the stair tread 1. After alignment, the movable block 641 is released, and the spring 653 will reset the clamping plate 651, so that the clamping plate 651 and the protrusion 654 pass through the limiting groove 5 on the stair tread 1 and fix the insert 61.

[0038] After the insert 61 is fully inserted into the mounting slot 4, the flange plate 67 on the step block 62 will be inserted into the positioning slot 68 on the adjacent step block 62, increasing the stability of the step 6 installation. Then, the next step 6 is installed in the same way to complete the splicing of the stairs.

[0039] After the staircase is assembled, the handrail 71 is installed into the threaded holes on each protrusion 654 by threading. After the handrail 71 is installed, the locking holes at the bottom of the handrail 72 are locked onto the upper end of each handrail 71, thus completing the installation of the handrail mechanism 7. The installation of the handrail mechanism 7 further improves the installation stability of the step 6, making it less prone to loosening.

[0040] When the stairs need to be disassembled, first remove the handrail mechanism 7, then push the moving block 641 to make the card plate 651 and the protrusion 654 leave the limiting groove 5, and finally pull out the step 6 to complete the disassembly.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A prefabricated staircase splicing structure for prefabricated buildings, comprising stair slabs (1), characterized in that: The stair slab (1) has a first step (2) and a last step (3) integrally formed at both ends. The upper part of the stair slab (1) is provided with several mounting slots (4) at equal intervals between the first step (2) and the last step (3). Each mounting slot (4) has a through limiting slot (5) on both sides inside. Each mounting slot (4) is provided with a step (6). The stair slab (1) is also provided with a handrail mechanism (7) on both sides. The step (6) includes a plug (61) that is compatible with the mounting groove (4). The plug (61) has a hollow interior and a step block (62) is provided on the upper side of the plug (61). A movable groove (63) is provided on the upper part of the step block (62). A strip groove (66) communicating with the interior of the plug (61) is provided on the lower side of the movable groove (63). A quick-release mechanism (64) is provided in the movable groove (63). A clip (65) is provided on both sides of the plug (61). The quick-release mechanism (64) drives the movement of the clip (65) so that the step (6) is installed into the mounting groove (4) on the stair tread (1) to complete the splicing of the stair.

2. The prefabricated staircase splicing structure for prefabricated buildings according to claim 1, characterized in that: The quick-release mechanism (64) includes a movable block (641) that is laterally slidably disposed in the movable groove (63). A movable plate (642) is provided on the bottom side of one side of the movable block (641). The lower side of the movable plate (642) slides through the interior of the strip groove (66) and is connected to a rack (643). A gear disk (644) is engaged on the bottom side of one end of the rack (643). The gear disk (644) is located in the middle position inside the insert block (61). A limit shaft (645) is integrally formed through the center of one side of the gear disk (644). The two ends of the limit shaft (645) are respectively connected to the two interior surfaces of the insert block (61). An eccentric rod (646) is hinged to the edge of one side of the gear disk (644).

3. The prefabricated staircase splicing structure for prefabricated buildings according to claim 2, characterized in that: The locking member (65) includes a locking plate (651) that slides laterally through one side of the insert block (61). A baffle (652) is provided on one side of the locking plate (651) inside the insert block (61). The side of the baffle (652) near the locking plate (651) and located above and below it is fixedly connected to the inner wall of the insert block (61) by a spring (653). The end of the eccentric rod (646) away from the gear disk (644) is hinged to the side of the baffle (652) away from the locking plate (651). A protrusion (654) is provided on the side of the locking plate (651) away from the baffle (652).

4. The prefabricated staircase splicing structure for prefabricated buildings according to claim 3, characterized in that: After the insert (61) is fully inserted into the mounting groove (4) on the stair slab (1), the position of the locking plate (651) corresponds to the limiting groove (5) on the stair slab (1), and when the spring (653) is in the reset state, both the locking plate (651) and the protrusion (654) pass through the limiting groove (5).

5. The prefabricated staircase splicing structure for prefabricated buildings according to claim 3, characterized in that: The length of the strip groove (66) is greater than the length of the rack (643). By moving the moving block (641), when the lower side of the other end of the rack (643) meshes with the gear disk (644), the clamping plate (651) and the protrusion (654) are just moved out of the limiting groove (5) on the stair plate (1), and the side of the protrusion (654) away from the clamping plate (651) is flush with the side of the insert block (61).

6. The prefabricated staircase splicing structure for prefabricated buildings according to claim 3, characterized in that: The handrail mechanism (7) includes a handrail plate (72) and handrails (71) in the same number as the steps (6). The upper part of the protrusion (654) is provided with a threaded hole. The lower end of the handrail (71) is threaded into the threaded hole on the protrusion (654). The bottom of the handrail plate (72) is provided with a locking hole that matches the upper end of each handrail (71). The handrail plate (72) is locked to the upper end of each handrail (71) through the locking hole.

7. A prefabricated staircase splicing structure for prefabricated buildings according to claim 6, characterized in that: The handrail (71) is a telescopic rod structure.

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