Assembly type prefabricated stair connecting structure

Abstract

The utility model discloses an assembly type prefabricated stair connecting structure relates to assembly type stair technical field, including prefabricated stair, both ends of prefabricated stair are provided with the connecting mechanism for realizing prefabricated stair quick dustless connection, and the connecting mechanism includes: the embedded unit is set up in both ends of prefabricated stair, and includes the top cap and embedded seat, the assembling unit is set up in the inside of embedded unit, including the card slot and T -shaped slot of setting up in the inside of top cap, the inside sliding installation of embedded seat has T -shaped sliding block, and T -shaped sliding block corresponds and inserts the inside card slot, through setting up embedded unit and assembling unit, realized prefabricated stair's quick, dustless installation. The structure utilizes the cooperation of T -shaped sliding block and card slot and T -shaped slot, replaces traditional punching bolt connection mode, significantly improves assembly efficiency, avoids the dust of construction site to produce, improves the working environment, reduces the manual cooperation difficulty, is applicable to the quick installation of stair in all kinds of assembly type buildings.

Description

Technical Field

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

[0002] Prefabricated stairs are constructed by first making the stairs themselves and then hoisting them onto the construction site. This eliminates the need for complex formwork on-site, making stair construction more efficient. Prefabricated stairs are also of higher quality, which is why they are widely used in construction.

[0003] According to the patent titled "A Connection Structure for Precast Concrete Staircases and Beams" (Patent Publication No.: CN208981676U, Patent Publication Date: 2019-06-14), the structure includes an upper ladder beam, a lower ladder beam, and a precast concrete staircase. The lower end of the precast concrete staircase is slidably supported on the upper ladder beam. Nuts are pre-embedded on the sides of the upper ladder beam opposite to the lower end of the precast concrete staircase. A through hole corresponding to the nut is formed on the precast concrete staircase, with the opening direction of the through hole aligned with the opening direction of the nut. A threaded rod is installed within the through hole and screwed into the nut. This design improves the production and connection efficiency of the precast concrete staircases and beams, while simultaneously achieving standardized design, factory production, and assembly construction of the precast concrete staircases and beams, effectively improving production and construction efficiency, and possessing good economic and practical advantages.

[0004] Based on the aforementioned existing technology, the current prefabricated staircase connection structure still has the following problems. The existing prefabricated staircases mainly use overlapping and bolt fixing methods during use. The two ends of the prefabricated staircase overlap on the ladder beam, holes are drilled in the ladder beam, and finally bolts are used for fixing. This connection structure requires the cooperation of multiple people. During the assembly of the prefabricated staircase, multiple people need to complete the overlapping, drilling, bolt installation and tightening operations in a short period of time. The installation is time-consuming, and a large amount of dust is generated during the drilling process, resulting in a harsh assembly environment that is not conducive to workers' work. Therefore, this utility model provides a prefabricated staircase connection structure. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a prefabricated staircase connection structure, which solves the following problems of existing prefabricated staircase connection structures: Existing prefabricated staircases mainly use overlapping and bolt fixing methods during use. The two ends of the prefabricated staircase overlap on the ladder beam, holes are drilled in the ladder beam, and finally bolts are used for fixing. This connection structure requires the cooperation of multiple people. During the assembly of prefabricated staircases, multiple people need to complete the overlapping, drilling, bolt installation and tightening operations in a short period of time. The installation is time-consuming, and a large amount of dust is generated during the drilling process, resulting in a harsh assembly environment that is not conducive to workers' work.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated staircase connection structure, comprising a prefabricated staircase, wherein both ends of the prefabricated staircase are provided with a connecting mechanism for achieving rapid and dust-free connection of the prefabricated staircase, the connecting mechanism comprising: The pre-embedded unit is set at both ends of the prefabricated staircase, including a top cover and a pre-embedded seat. The pre-embedded seat is fixedly installed inside the stair beam by bolts pre-embedded inside the stair beam. The assembly unit, located inside the pre-embedded unit, includes a slot and a T-shaped groove opened inside the top cover. A T-shaped slider is slidably installed inside the pre-embedded base, and the T-shaped slider is correspondingly inserted into the slot and moved into the T-shaped groove, thereby realizing a quick and dust-free connection of the prefabricated stairs.

[0007] Preferably, a retaining plate is fixedly installed below one end of the top cover, and a set of fixing plates is fixedly installed inside the pre-embedded base, and the retaining plate slides into the set of fixing plates to fix the position of the top cover.

[0008] Preferably, a threaded toggle is rotatably mounted inside the fixed plate, and a movable block is rotatably mounted on the surface of the threaded toggle. A T-shaped slider is fixedly mounted on the top of the movable block, and the movement of the movable block and the T-shaped slider is achieved by rotating the threaded toggle.

[0009] Preferably, the card plate has a positioning groove in the middle, and one end of the threaded button is inserted into the positioning groove.

[0010] Preferably, a rectangular groove is provided on the upper side of the embedded base, and a rectangular plate is installed inside the rectangular groove to prevent dust from entering the interior of the embedded base.

[0011] Preferably, each of the four bottom corners of the rectangular plate is fixedly installed with a column, and the top left side of the pre-embedded base is provided with four insertion holes at the four corners inside the rectangular groove. The rectangular plate is fixed in position by inserting the column into the insertion hole.

[0012] This utility model provides a prefabricated, assembled staircase connection structure. Compared with the prior art, it has the following advantages: 1. This prefabricated staircase connection structure achieves rapid and dust-free installation of prefabricated stairs through the setting of pre-embedded units and assembly units. This structure utilizes the cooperation of T-shaped sliders with slots and T-grooves to replace the traditional drilling and bolt connection method, significantly improving assembly efficiency, avoiding dust generation on the construction site, improving the working environment, and reducing the difficulty of manual coordination. It is suitable for the rapid installation of stairs in various prefabricated buildings.

[0013] 2. This prefabricated staircase connection structure uses a threaded toggle to drive a moving block, which in turn moves a T-shaped slider, achieving precise positioning and fastening of the top cover. The structure is stable and reliable. The interlocking design of the rectangular plate and rectangular groove further enhances the dustproof effect, ensuring the cleanliness of the embedded base and extending its service life. The overall structural design is reasonable, installation is simple, and it has good practicality and promotional value. Attached Figure Description

[0014] Figure 1 This is a right-side perspective view of the structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the connecting mechanism of this utility model. Figure 3 This is a three-dimensional sectional view of the connecting mechanism of this utility model. Figure 4 This is a partially disassembled bottom-view three-dimensional structural diagram of the present invention; Figure 5 This is a partially disassembled top-view three-dimensional structural diagram of this utility model.

[0015] In the diagram: 1-Precast staircase, 2-Connecting mechanism, 21-Embedded unit, 211-Top cover, 212-Embedded seat, 213-Fixing plate, 214-Clamping plate, 22-Assembly unit, 221-Threaded toggle rod, 222-Moving block, 223-T-shaped slider, 224-T-shaped groove, 225-Clamping groove, 226-Positioning groove, 227-Rectangular groove, 228-Rectangular plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 This utility model provides a technical solution: A prefabricated staircase connection structure includes a prefabricated staircase 1, with connecting mechanisms 2 at both ends of the prefabricated staircase 1 for quick and dust-free connection. The connecting mechanism 2 includes: The pre-embedded unit 21 is set at both ends of the prefabricated staircase 1, including a top cover 211 and a pre-embedded seat 212. The pre-embedded seat 212 is fixedly installed inside the stair beam by bolts pre-embedded inside the stair beam. Assembly unit 22 is set inside the pre-embedded unit 21, including slot 225 and T-shaped groove 224 opened inside the top cover 211. T-shaped slider 223 is slidably installed inside the pre-embedded base 212, and the T-shaped slider 223 is correspondingly inserted into the slot 225 and moved into the T-shaped groove 224, thereby realizing the quick and dust-free connection of the prefabricated staircase 1.

[0018] In this embodiment, a card plate 214 is fixedly installed below one end of the top cover 211, and a set of fixing plates 213 are fixedly installed inside the pre-embedded base 212. The card plate 214 slides into the set of fixing plates 213 to fix the position of the top cover 211.

[0019] The initial positioning and fixation of the top cover 211 is achieved by sliding the clamping plate 214 fixedly installed at one end of the bottom of the top cover 211 with a set of fixing plates 213 inside the pre-embedded base 212. The structure is simple and reliable, and it is convenient for alignment operation during the installation process, providing a stable foundation for subsequent fastening steps.

[0020] In this embodiment, a threaded toggle rod 221 is rotatably mounted inside the fixed plate 213, and a movable block 222 is rotatably mounted on the surface of the threaded toggle rod 221. A T-shaped slider 223 is fixedly mounted on the top of the movable block 222. The movement of the movable block 222 and the T-shaped slider 223 is achieved by rotating the threaded toggle rod 221.

[0021] The moving block 222 is driven to move by the threaded toggle rod 221 that is rotated inside the fixed plate 213, which in turn drives the T-shaped slider 223 to slide, thus realizing the precise connection and fastening between the top cover 211 and the embedded seat 212. This transmission method is easy to operate, has high connection strength, and ensures the structural stability and safety of the prefabricated staircase 1 during use.

[0022] In this embodiment, a positioning groove 226 is provided in the middle of the interior of the card plate 214, and one end of the threaded toggle 221 is inserted into the interior of the positioning groove 226.

[0023] The positioning groove 226 in the middle of the card plate 214 and its engagement with one end of the threaded toggle 221 further restrict the axial displacement of the threaded toggle 221, improve the stability and accuracy of the transmission process, prevent connection failure caused by component misalignment during fastening, and enhance the reliability of the overall structure.

[0024] In this embodiment, a rectangular groove 227 is provided on one side above the pre-embedded seat 212, and a rectangular plate 228 is installed inside the rectangular groove 227 to prevent dust from entering the interior of the pre-embedded seat 212.

[0025] The rectangular groove 227 opened on one side above the pre-embedded seat 212 and the rectangular plate 228 installed inside it effectively prevent dust and debris from entering the interior of the pre-embedded seat 212, protect the precision transmission components such as the threaded toggle rod 221 and the moving block 222 inside, extend the service life of the connecting mechanism 2, and reduce maintenance requirements.

[0026] In this embodiment, columns are fixedly installed at the four bottom corners of the rectangular plate 228, and four insertion holes are opened at the four corners of the top left side of the pre-embedded base 212 inside the rectangular groove 227. The position of the rectangular plate 228 is fixed by inserting the columns into the insertion holes.

[0027] The uprights fixed at the four corners of the bottom of the rectangular plate 228 cooperate with the insertion holes opened at the four corners of the rectangular groove 227 at the top of the pre-embedded base 212, realizing the quick and accurate positioning and fixing of the rectangular plate 228. This dustproof design makes disassembly and assembly convenient, further ensuring the cleanliness of the inside of the pre-embedded unit 21 and improving the practicality and environmental adaptability of the product.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] During operation, firstly, the pre-embedded seats 212 at both ends of the prefabricated staircase 1 are fixedly installed on the stair beam by bolts pre-embedded inside the stair beam. The top cover 211 slides into the interior of the pre-embedded seat 212, the card plate 214 slides into the space between the two fixed plates 213, and the T-shaped slider 223 slides into the interior of the slot 225. Then, rotate the threaded toggle 221 to move the moving block 222. The moving block 222 moves the T-shaped slider 223. The T-shaped slider 223 slides into the T-shaped groove 224 to fix the position of the top cover 211. The rectangular plate 228 is inserted into the rectangular groove 227. The four pillars at the bottom of the rectangular plate 228 are inserted into the holes below the rectangular groove 227 to fix the position of the rectangular plate 228, thus completing the connection.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated staircase connection structure, comprising a prefabricated staircase (1), characterized in that: Both ends of the prefabricated staircase (1) are provided with connecting mechanisms (2) to achieve quick and dust-free connection of the prefabricated staircase (1). The connecting mechanism (2) includes: The pre-embedded unit (21) is set at both ends of the prefabricated staircase (1), including a top cover (211) and a pre-embedded seat (212). The pre-embedded seat (212) is fixedly installed inside the stair beam by bolts pre-embedded inside the stair beam. Assembly unit (22) is set inside the pre-embedded unit (21), including a slot (225) and a T-shaped slot (224) opened inside the top cover (211). A T-shaped slider (223) is slidably installed inside the pre-embedded seat (212), and the T-shaped slider (223) is correspondingly inserted into the slot (225) and moved into the T-shaped slot (224), thereby realizing the quick and dust-free connection of the prefabricated staircase (1).

2. The prefabricated staircase connection structure according to claim 1, characterized in that: A card plate (214) is fixedly installed below one end of the top cover (211), and a set of fixing plates (213) is fixedly installed inside the pre-embedded seat (212). The card plate (214) slides into the set of fixing plates (213) to fix the position of the top cover (211).

3. The prefabricated staircase connection structure according to claim 2, characterized in that: The fixed plate (213) is rotatably mounted with a threaded toggle rod (221), and a movable block (222) is rotatably mounted on the surface of the threaded toggle rod (221). A T-shaped slider (223) is fixedly mounted on the top of the movable block (222). The movable block (222) and the T-shaped slider (223) can be moved by rotating the threaded toggle rod (221).

4. The prefabricated staircase connection structure according to claim 3, characterized in that: The card plate (214) has a positioning groove (226) in the middle, and one end of the threaded rod (221) is inserted into the positioning groove (226).

5. The prefabricated staircase connection structure according to claim 1, characterized in that: A rectangular groove (227) is provided on one side above the pre-embedded seat (212), and a rectangular plate (228) is installed inside the rectangular groove (227) to prevent dust from entering the interior of the pre-embedded seat (212).

6. The prefabricated staircase connection structure according to claim 5, characterized in that: The rectangular plate (228) is fixedly installed with columns at the four corners of its bottom, and the top left side of the pre-embedded base (212) is provided with four insertion holes at the four corners inside the rectangular groove (227). The rectangular plate (228) is fixed in position by inserting the columns into the insertion holes.

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