CN221502493U - An assembled staircase structure for house construction - Google Patents

Abstract

The utility model discloses an assembled stair structure for house construction, and relates to the technical field of building stairs. The stair comprises a stair body and a stair beam, wherein a positioning inserting rod is fixedly arranged on the surface of the stair beam, movable sleeves are movably sleeved on the surface of the positioning inserting rod, mounting grooves are formed in the surfaces of the upper end and the lower end of the stair body, an angle adjusting ring is rotatably arranged on the side surface of the inner wall of the mounting groove, a threaded telescopic component is fixedly arranged on the inner side surface of the angle adjusting ring, a threaded sleeve used for driving the stair body to stretch out and draw back is arranged on the surface of the threaded telescopic component, a cross clamping block is fixedly arranged at the telescopic end of the threaded telescopic component, and an extrusion fixing component used for extruding and fixing the threaded sleeve is arranged on the surface of the threaded sleeve. According to the utility model, the screw thread sleeve is extruded and fixed by the extrusion fixing component, so that the length change of the screw thread telescopic component caused by the wrong rotation of the screw thread sleeve in the grouting process is avoided, the movable sleeve can be reliably fixed, and the stair main body is ensured not to deviate due to the action of external force.

Description

An assembled staircase structure for house construction

Technical Field

The utility model relates to the technical field of building stairs, in particular to an assembled staircase structure used for house construction.

Background Art

With the technological development of the construction industry, prefabricated buildings have been increasingly widely used due to their advantages of high construction efficiency and fast construction speed. Among them, prefabricated stairs, as a more mature prefabricated building structure, are gradually replacing traditional cast-in-place concrete stairs. Prefabricated stairs are installed by prefabrication in advance and assembly later.

In the prior art, a Chinese patent with authorization announcement number CN213539525U discloses an assembled staircase. When the staircase body is installed on the upper ladder beam and the embedded bolts need to be inserted into the holes, the misaligned position of the embedded bolts and the holes is first determined; then the ring block is rotated by inserting a tool into the groove so that the telescopic part passes through the vertical line where the embedded bolts are located; then the telescopic part is compressed so that the opening direction of the hole is coaxial with the embedded bolts, and the embedded bolts are inserted into the hole, thereby solving the problem that the size of the prefabricated stairs may deviate from the on-site size, resulting in inconvenience in installation.

The above-mentioned prior art solution has the following defects: the positioning plate is positioned by a telescopic part that is elastic but cannot fix its own length, and while having higher flexibility, the positioning plate is movable relative to the stair body, resulting in the stair body being easily misaligned relative to the upper and lower ladder beams under the action of external forces after the embedded bolts are inserted into the holes. In actual construction scenarios, external force impacts often occur. Therefore, construction workers need to always pay attention to whether the stair body is offset and make adjustments before and during casting, which increases the workload of construction workers.

For this reason, a prefabricated staircase structure for housing construction is proposed.

Utility Model Content

The purpose of the utility model is to solve the problem that the telescopic parts used for adjusting the positions of the positioning holes of the existing assembled stairs cannot be fixed in length, resulting in the staircase body being easily offset due to external force impact during the actual installation process. The utility model provides an assembled staircase structure for house construction.

In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

A prefabricated staircase structure for housing construction comprises a staircase body and stair beams, the staircase body being mounted on the surfaces of two stair beams arranged upper and lower, a positioning rod being fixedly mounted on the surface of the stair beam, a movable sleeve being movably sleeved on the surface of the positioning rod, mounting grooves being provided on the upper and lower end surfaces of the staircase body, an angle adjustment ring being rotatably mounted on the side surface of the inner wall of the mounting groove, a threaded telescopic component being fixedly mounted on the inner surface of the angle adjustment ring, a threaded sleeve being provided on the surface of the threaded telescopic component for driving the same to be extended and retracted, a cross block being fixedly mounted on the telescopic end of the threaded telescopic component for engaging with the movable sleeve, and an extrusion fixing component being provided on the surface of the threaded sleeve for extruding and fixing the threaded sleeve.

Furthermore, a cross slot is formed on the surface of the movable sleeve, the specification of the cross slot is matched with the cross clamping block, and the cross clamping block is slidably engaged in the cross slot.

Furthermore, the angle adjustment ring includes a ring body, a toggle handle is fixedly installed on the outer side of the ring body, a limit ring is fixedly installed on the outer side of the ring body, the ring body and the limit ring are rotatably arranged relative to the inner side wall of the mounting groove, and casting holes are provided on the side wall of the ring body, the side wall of the limit ring and the inner side of the mounting groove.

Furthermore, the threaded telescopic assembly includes a mounting tube, which is fixedly mounted on the inner side of the ring body and radially arranged, a limit slider is slidably mounted inside the mounting tube, a threaded rod is fixedly mounted on the surface of the limit slider, the threaded rod is movably inserted into the proximal end of the mounting tube, the threaded sleeve is rotatably mounted on the proximal end surface of the mounting tube and threadedly sleeved on the surface of the threaded rod, and the cross block is fixedly mounted on the proximal end of the threaded rod.

Furthermore, the extrusion and fixing assembly includes a lifting groove, which is opened on the proximal end surface of the mounting tube, a lifting block is slidably installed inside the lifting groove, a pressure block is fixedly installed on the surface of the lifting block, the shape and specification of the pressure block are compatible with the threaded sleeve, a threaded column is rotatably installed on the top wall of the lifting groove, the threaded column is rotatably connected to the bottom wall of the lifting groove, the surface of the threaded column is threadedly connected to the lifting block, the threaded column is arranged to pass through the side surface of the mounting tube, and a rotating block is fixedly installed on the top of the threaded column.

Furthermore, the outer side surface of the threaded sleeve is covered with a rubber layer.

The beneficial effects of the utility model are as follows:

The utility model adjusts the position of the threaded telescopic assembly by rotating the angle adjustment ring so that the threaded telescopic assembly points to the movable sleeve, adjusts the length of the threaded telescopic assembly by the threaded sleeve and rotates the movable sleeve so that the cross clamping block is engaged with the surface of the movable sleeve, thereby realizing a relatively fixed connection among the angle adjustment ring, the threaded telescopic assembly and the movable sleeve, and finally realizing the relative fixation of the stair main body and the ladder beam, and the threaded sleeve is squeezed and fixed by the squeezing and fixing assembly, so that the length change of the threaded telescopic assembly caused by the wrong rotation of the threaded sleeve during the grouting process is avoided, and then the movable sleeve can be reliably fixed, ensuring that the stair main body will not be offset due to the action of external force. During the grouting and fixing process, the construction personnel do not need to repeatedly adjust the position of the stair main body, thereby reducing the workload of the construction personnel.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;

FIG2 is an exploded view of a local three-dimensional structure of the utility model;

FIG3 is a front cross-sectional view of the three-dimensional structure of the threaded telescopic assembly of the utility model;

FIG4 is an enlarged view of the structure of section A in FIG2 of the present utility model;

Figure numerals: 1. stair body; 2. stair beam; 3. positioning rod; 4. movable sleeve; 5. mounting groove; 6. angle adjustment ring; 601. ring body; 602. toggle handle; 603. limit ring; 7. threaded telescopic assembly; 701. mounting cylinder; 702. limit slider; 703. threaded rod; 8. threaded sleeve; 9. cross block; 10. cross slot; 11. extrusion fixing assembly; 111. lifting slot; 112. lifting block; 113. pressing block; 114. threaded column; 115. rotary block; 12. rubber layer; 13. casting hole.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

As shown in Figures 1 to 4, an assembled staircase structure for house construction includes a staircase body 1 and a ladder beam 2. The staircase body 1 is erected on the surfaces of two ladder beams 2 arranged upper and lower. A positioning rod 3 is fixedly installed on the surface of the ladder beam 2. A movable sleeve 4 is movably sleeved on the surface of the positioning rod 3. Installation grooves 5 are provided on the upper and lower end surfaces of the staircase body 1. An angle adjustment ring 6 is rotatably installed on the side of the inner wall of the installation groove 5. A threaded telescopic component 7 is fixedly installed on the inner surface of the angle adjustment ring 6. A threaded sleeve 8 for driving the extension and retraction of the threaded telescopic component 7 is provided on the surface. A cross block 9 engaged with the movable sleeve 4 is fixedly installed on the telescopic end of the threaded telescopic component 7. An extrusion fixing component 11 for extruding and fixing the threaded sleeve 8 is provided on the surface of the threaded sleeve 8.

The movable sleeve 4 is then retracted to allow the staircase body 1 to be moved in a downward direction and the staircase body 1 to be moved in a downward direction.

As shown in FIG. 3 , a cross slot 10 is formed on the surface of the movable sleeve 4 . The specification of the cross slot 10 matches that of the cross clamping block 9 . The cross clamping block 9 is slidably engaged in the cross slot 10 .

Specifically, when the positioning rod 3 and the mounting groove 5 are not arranged concentrically, through the engagement of the cross block 9 and the cross groove 10, since the axis of the angle adjustment ring 6 deviates from the axis of the movable sleeve 4, the threaded telescopic assembly 7 is fixed relative to the movable sleeve 4, and therefore the angle adjustment ring 6 cannot rotate under the action of external force, thereby finally achieving the fixation of the relative positions of the stair body 1 and the ladder beam 2.

As shown in Figures 1 and 2, the angle adjustment ring 6 includes a ring body 601, a toggle handle 602 is fixedly installed on the inner side of the ring body 601, and a limit ring 603 is fixedly installed on the outer side of the ring body 601. The ring body 601 and the limit ring 603 are rotatably arranged relative to the inner wall of the installation groove 5, and the side wall of the ring body 601, the side wall of the limit ring 603 and the inner side of the installation groove 5 are all provided with casting holes 13.

Specifically, the construction workers can rotate the ring body 601 by grasping the limit ring 603 to adjust the position of the threaded telescopic assembly 7. The ring body 601 is limited and supported by the limit ring 603 to ensure that the ring body 601 can rotate reliably and stably. During grouting, the mud enters the casting hole 13 and solidifies, so that the angle adjustment ring 6 is further fixed relative to the installation groove 5, finally ensuring that the stair body 1 is reliably installed relative to the ladder beam 2.

As shown in Figures 1 to 4, the threaded telescopic assembly 7 includes a mounting tube 701, which is fixedly installed on the inner side of the ring body 601 and radially arranged. A limit slider 702 is slidably installed inside the mounting tube 701. A threaded rod 703 is fixedly installed on the surface of the limit slider 702. The threaded rod 703 is movably inserted into the proximal end of the mounting tube 701. The threaded sleeve 8 is rotatably installed on the proximal end surface of the mounting tube 701 and is threadedly sleeved on the surface of the threaded rod 703. The cross block 9 is fixedly installed on the proximal end of the threaded rod 703.

Specifically, since the threaded rod 703 is threadedly connected to the threaded sleeve 8, and since the limit slider 702 is slidably installed in the installation tube 701, when the threaded sleeve 8 is rotated, the threaded rod 703 will drive the limit slider 702 to move radially, thereby realizing the extension and retraction of the threaded rod 703 and the adjustment of the overall length of the threaded extension assembly 7, so that the cross block 9 fixedly installed on the surface of the threaded rod 703 can move radially, so that the cross block 9 can be slidably engaged in the cross slot 10.

As shown in Figures 1 to 4, the extrusion fixing component 11 includes a lifting groove 111, which is opened on the proximal end surface of the mounting tube 701. A lifting block 112 is slidably installed inside the lifting groove 111, and a pressure block 113 is fixedly installed on the surface of the lifting block 112. The shape and specifications of the pressure block 113 are compatible with the threaded sleeve 8. A threaded column 114 is rotatably installed on the top wall of the lifting groove 111. The threaded column 114 is rotatably connected to the bottom wall of the lifting groove 111. The surface of the threaded column 114 is threadedly connected to the lifting block 112. The threaded column 114 is arranged to penetrate the side of the mounting tube 701, and a rotary block 115 is fixedly installed on the top of the threaded column 114.

Specifically, rotating the rotary block 115 drives the threaded column 114 to rotate. Since the lifting block 112 is slidably installed in the lifting groove 111 and is threadedly connected to the threaded column 114, the rotation of the threaded column 114 will drive the lifting block 112 to rise and fall, and then drive the pressing block 113 fixedly installed on the surface of the lifting block 112 to rise and fall. When the pressing block 113 descends, it can squeeze and fit the outer side of the threaded sleeve 8 to squeeze and fix the threaded sleeve 8 to prevent the threaded sleeve 8 from rotating accidentally and causing the length of the threaded telescopic assembly 7 to change. When the pressing block 113 rises, the threaded sleeve 8 can be rotated to adjust the length of the threaded telescopic assembly 7.

As shown in FIGS. 1 to 4 , the outer side of the threaded sleeve 8 is covered with a rubber layer 12 .

Specifically, the friction between the pressing block 113 and the threaded sleeve 8 is increased by the rubber layer 12 , so that the pressing block 113 can more reliably squeeze and fix the threaded sleeve 8 .

In summary, the utility model adjusts the position of the threaded telescopic assembly 7 by rotating the angle adjustment ring 6, so that the threaded telescopic assembly 7 points to the movable sleeve 4, adjusts the length of the threaded telescopic assembly 7 by the threaded sleeve 8 and rotates the movable sleeve 4, so that the cross block 9 is engaged with the surface of the movable sleeve 4, thereby realizing a relatively fixed connection between the stair body 1, the angle adjustment ring 6, the threaded telescopic assembly 7 and the movable sleeve 4, and finally realizing the relative fixation of the stair body 1 and the ladder beam 2, and the threaded sleeve 8 is squeezed and fixed by the squeezing and fixing assembly 11 to avoid the threaded sleeve 8 from rotating incorrectly during the grouting process, which causes the length of the threaded telescopic assembly 7 to change, and then the movable sleeve 4 can be reliably fixed to ensure that the stair body 1 will not be offset due to external force. During the grouting and fixing process, the construction personnel do not need to repeatedly adjust the position of the stair body 1, which reduces the workload of the construction personnel and solves the problem that the telescopic parts used for adjusting the positioning hole position of the existing assembled stairs cannot be fixed in length, resulting in the stair body being very easy to be offset due to external force impact during the actual installation process.

The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims (6)

1. An assembled staircase structure for building construction, characterized in that it comprises a staircase body (1) and a ladder beam (2), wherein the staircase body (1) is mounted on the surfaces of two ladder beams (2) arranged above and below, a positioning rod (3) is fixedly installed on the surface of the ladder beam (2), a movable sleeve (4) is movably sleeved on the surface of the positioning rod (3), mounting grooves (5) are provided on the upper and lower surfaces of the staircase body (1), an angle adjustment ring (6) is rotatably installed on the inner wall side of the mounting groove (5), a threaded telescopic component (7) is fixedly installed on the inner surface of the angle adjustment ring (6), a threaded sleeve (8) for driving the threaded telescopic component (7) is provided on the surface, a cross block (9) engaged with the movable sleeve (4) is fixedly installed on the telescopic end of the threaded telescopic component (7), and an extrusion fixing component (11) for extruding and fixing the threaded sleeve (8) is provided on the surface of the threaded sleeve (8). 2. According to claim 1, an assembled staircase structure for house construction is characterized in that a cross slot (10) is provided on the surface of the movable sleeve (4), the specification of the cross slot (10) is adapted to the cross block (9), and the cross block (9) is slidably engaged in the cross slot (10). 3. An assembled staircase structure for building construction according to claim 1, characterized in that the angle adjustment ring (6) includes a ring body (601), a toggle handle (602) is fixedly installed on the inner side of the ring body (601), and a limit ring (603) is fixedly installed on the outer side of the ring body (601), the ring body (601) and the limit ring (603) are rotatably arranged relative to the inner side wall of the installation groove (5), and the side wall of the ring body (601), the side wall of the limit ring (603) and the inner side of the installation groove (5) are all provided with casting holes (13). 4. An assembled staircase structure for housing construction according to claim 3, characterized in that the threaded telescopic component (7) includes a mounting tube (701), the mounting tube (701) is fixedly mounted on the inner side of the ring body (601) and is radially arranged, a limit slider (702) is slidably mounted inside the mounting tube (701), a threaded rod (703) is fixedly mounted on the surface of the limit slider (702), the threaded rod (703) is movably inserted into the proximal end of the mounting tube (701), the threaded sleeve (8) is rotatably mounted on the proximal end surface of the mounting tube (701) and is threadedly sleeved on the surface of the threaded rod (703), and the cross block (9) is fixedly mounted on the proximal end of the threaded rod (703). 5. An assembled staircase structure for housing construction according to claim 4, characterized in that the extrusion fixing component (11) includes a lifting groove (111), the lifting groove (111) is opened on the proximal end surface of the installation cylinder (701), a lifting block (112) is slidably installed inside the lifting groove (111), a pressing block (113) is fixedly installed on the surface of the lifting block (112), and the shape and specification of the pressing block (113) are compatible with the threaded sleeve (8), a threaded column (114) is rotatably installed on the top wall of the lifting groove (111), the threaded column (114) is rotatably connected to the bottom wall of the lifting groove (111), the surface of the threaded column (114) is threadedly connected to the lifting block (112), the threaded column (114) passes through the side of the installation cylinder (701), and a rotating block (115) is fixedly installed on the top of the threaded column (114). 6. An assembled staircase structure for housing construction according to claim 1, characterized in that the outer side of the threaded sleeve (8) is covered with a rubber layer (12).