Stair device
By designing a stair device including a base frame, a top frame, a support column, a staircase and a retractable support arm, the temporary passage construction problem caused by lag in prefabricated stairs is solved, and manpower is saved, project progress is improved, cost reduction and safety and traffic capacity are improved.
Patent Information
- Application Number
- CN202421590995.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The lag in installation of prefabricated stairs causes construction workers to build temporary passages, which consumes time, reduces traffic capacity and poses safety hazards.
Design a stair device, including a base frame, a top frame, a support column, a staircase and a retractable support arm. By hanging on the stairwell, the support arm is supported on the floor outside the stairwell to avoid the construction of temporary passages.
Save manpower, improve project progress, reusable materials, reduce costs, high stability, strong passability, and improve safety.
Smart Images
Figure CN222909566U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction, in particular to a staircase device. Background Art
[0002] Prefabricated stairs are widely used in housing construction due to their mass production, controlled quality, material saving and accelerated construction progress. However, the installation of prefabricated stairs often lags behind the construction work layer, resulting in the construction workers having to build a temporary passage when entering the construction work surface in order to go up and down the construction work surface. The construction of this temporary passage is time-consuming, and the external frame occupies a certain space, thereby reducing the traffic capacity. During the peak construction period, this will affect the construction workers' going up and down the construction work surface. In addition, due to the limitation of the external frame erection level, the safety factor of the temporary passage is low, and there are certain safety hazards. Utility Model Content
[0003] To this end, the utility model provides a staircase device, which mainly solves the technical problems of the prior art that a temporary passage needs to be built due to the delayed installation of prefabricated stairs, which causes time-consuming construction, low traffic capacity and certain safety hazards.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A staircase device comprises a rectangular bottom frame formed by connecting a first bottom arm, a second bottom arm, a third bottom arm and a fourth bottom arm end to end, and a rectangular top frame formed by connecting a first top arm, a second top arm, a third top arm and a fourth top arm end to end; the four corners of the bottom frame are connected to the four corners of the top frame through a first supporting column, a second supporting column, a third supporting column and a fourth supporting column respectively to form a rectangular parallelepiped structure; it also comprises a first staircase and a second staircase; the bottom of the first staircase is connected to the rear side of the second bottom arm, and the top is connected to the rear side of the fourth top arm; the bottom of the second staircase is connected to the front side of the fourth bottom arm, and the top is connected to the front side of the second top arm; support arms are provided on the left and right sides of the first and third bottom arms for supporting the staircase device.
[0006] Preferably, the first bottom arm and the third bottom arm are each provided with at least one set of fastening devices for fixing the staircase device.
[0007] Optionally, the fastening device includes a fixed seat arranged at the bottom of the first bottom arm or the third bottom arm; the fixed seat is threadedly connected to the adjusting screw; a U-shaped clamping seat is rotatably arranged on the outer side of the adjusting screw for clamping and fixing it on the stair beam, and a handle is fixedly arranged on the inner side; the adjusting screw can be rotatably passed through the clamping seat at one end toward the clamping seat and extend out of the clamping seat; a limit block is fixedly arranged in the extending area of the adjusting screw to prevent the clamping seat from falling off the adjusting screw.
[0008] Preferably, the support arm is telescopically connected to the first bottom arm and the third bottom arm.
[0009] Optionally, the left end surface and the right end surface of the first bottom arm and the third bottom arm are both provided with a receiving groove adapted to the support arm; the support arm can be slidably disposed in the receiving groove.
[0010] Preferably, it also includes an anti-slip rope; one end of the anti-slip rope is connected to the first support column, or the second support column, or the third support column, or the fourth support column, and the other end is connected to the support arm, for preventing the support arm from detaching from the accommodating groove.
[0011] Preferably, a first connecting rod is provided between the second bottom arm and the fourth bottom arm of the first staircase and the second staircase; a third connecting rod is provided between the second top arm and the fourth top arm of the first staircase and the second staircase; a second connecting rod is provided between the first bottom arm and the third bottom arm; and the middle part of the second connecting rod is connected to the middle part of the first connecting rod.
[0012] Preferably, the top surfaces of the first top arm, the second top arm, the third top arm, the fourth top arm and the third connecting rod are provided with a second guardrail; the second guardrail in the top area of the first staircase is provided with a first entrance and exit for construction workers to enter and exit the first staircase; the second guardrail in the top area of the second staircase is provided with a second entrance and exit for construction workers to enter and exit the second staircase.
[0013] Preferably, a first guardrail is provided on a side of the first staircase close to the second staircase, or on a side of the second staircase close to the first staircase.
[0014] Preferably, at least one first guard rail is provided between the third top arm and the second supporting column; the first guard rail is parallel to the first staircase and located above the first staircase; at least one second guard rail is provided between the first top arm and the fourth supporting column; the second guard rail is parallel to the second staircase and located above the second staircase.
[0015] The utility model has at least the following beneficial effects:
[0016] The device is provided with a rectangular bottom frame formed by connecting the first bottom arm, the second bottom arm, the third bottom arm and the fourth bottom arm end to end, and a rectangular top frame formed by connecting the first top arm, the second top arm, the third top arm and the fourth top arm end to end. The four corners of the bottom frame and the four corners of the top frame are connected together through the first support column, the second support column, the third support column and the fourth support column to form a rectangular parallelepiped structure. A first staircase and a second staircase are also provided. The bottom of the first staircase is connected to the rear side of the second bottom arm, and the top is connected to the rear side of the fourth top arm. The bottom of the second staircase is connected to the front side of the fourth bottom arm, and the top is connected to the front side of the second top arm. Support arms are provided on the left and right sides of the first bottom arm and the third bottom arm for supporting the staircase device. When in use, the stair device of the present application is hung on the stairwell under the working surface layer, and the supporting arm is on the floor outside the stairwell to support the stair device of the application. There is no need to build a temporary passage, which saves manpower and improves the progress of the project. At the same time, the stair device of the present application is reusable, which saves materials and reduces costs. Moreover, the stair device of the present application has an overall rectangular structure, which has high structural stability. The first staircase and the second staircase are staggered, which further enhances the overall stability. Moreover, people enter and exit from two directions, which greatly improves the personnel traffic capacity.
[0017] It can be seen that the staircase device of the utility model has the advantages of saving manpower, improving engineering progress, saving materials, reducing costs, high safety, and strong traffic capacity. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly explain the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the present invention. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other drawings can be derived from the provided drawings without creative work.
[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.
[0020] Figure 1 This is a structural schematic diagram of a staircase device of the utility model;
[0021] Figure 2 The utility model is an attachment of a staircase device Figure 1 Schematic diagram of the left direction;
[0022] Figure 3The utility model is an attachment of a staircase device Figure 2 A partial enlarged view of part A;
[0023] Figure 4 It is a left view of a staircase device of the utility model;
[0024] Figure 5 It is a structural schematic diagram of a fastening device for a staircase device of the utility model;
[0025] Figure 6 It is a front cross-sectional view of a fastening device of a staircase device of the utility model;
[0026] Description of reference numerals:
[0027] 1. First staircase; 2. Second staircase; 3. First bottom arm; 4. Second bottom arm; 5. Third bottom arm; 6. Fourth bottom arm; 7. First top arm; 8. Second top arm; 9. Third top arm; 10. Fourth top arm; 11. First supporting column; 12. Second supporting column; 13. Third supporting column; 14. Fourth supporting column; 15. First connecting rod; 16. Second connecting rod; 17. Third connecting rod; 18. First guardrail; 19. First guardrail; 20. Second guardrail; 21. Second guardrail; 22. First entrance and exit; 23. Second entrance and exit; 24. Fastening device; 2401. Fixed seat; 2402. Adjusting screw; 2403. Clamping seat; 2404. Handle; 2405. Limit block; 25. Support arm; 26. Anti-drop rope. DETAILED DESCRIPTION
[0028] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.
[0029] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).
[0030] The terms such as "upper", "lower", "left", "right", "middle", etc. used in this application are usually used to facilitate intuitive understanding by comparing with the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product. Without departing from the technical concept disclosed in this application, changes in these relative positional relationships should also be regarded as the scope of this application.
[0031] The utility model provides a staircase device, such as Figures 1 to 6As shown, the first bottom arm 3, the second bottom arm 4, the third bottom arm 5 and the fourth bottom arm 6 are connected end to end to form a bottom frame, which is rectangular; at the same time, the first top arm 7, the second top arm 8, the third top arm 9 and the fourth top arm 10 are connected end to end to form a top frame, which is rectangular. The four corners of the bottom frame are connected to the four corners of the top frame through the first support column 11, the second support column 12, the third support column 13 and the fourth support column 14, respectively, and it is a rectangular parallelepiped structure. A first staircase 1 and a second staircase 2 are also provided, and the bottom of the first staircase 1 is connected to the rear side of the second bottom arm 4, and the top is connected to the rear side of the fourth top arm 10. The bottom of the second staircase 2 is connected to the front side of the fourth bottom arm 6, and the top is connected to the front side of the second top arm 8. Support arms 25 are provided on the left and right sides of the first bottom arm 3 and the third bottom arm 5 for supporting the staircase device. When in use, the stair device of the present application is hung on the stairwell under the working surface layer, and the support arm 25 is on the floor outside the stairwell to support the stair device of the application. There is no need to build a temporary passage, which saves manpower and improves the progress of the project. At the same time, the stair device of the present application can be reused, which saves materials and reduces costs. Moreover, the stair device of the present application has a rectangular structure as a whole, which has high structural stability. The first staircase 1 and the second staircase 2 are staggered, which further enhances the overall stability. Moreover, people enter and exit from two directions, which greatly improves the personnel traffic capacity.
[0032] Preferably, in order to make the stair device of the present application stable in use, at least one set of fastening devices 24 are provided on the first bottom arm 3 and the third bottom arm 5 for fixing the stair device. In the embodiment of the present application, the first bottom arm 3 and the third bottom arm 5 are provided with two sets of fastening devices 24.
[0033] Optionally, the embodiment of the present application provides a preferred implementation of the fastening device 24, specifically: the fastening device 24 includes a fixed seat 2401 arranged at the bottom of the first bottom arm 3 or the third bottom arm 5. The adjusting screw 2402 is threadedly connected to the fixed seat 2401. A U-shaped clamping seat 2403 can be rotatably arranged on the outer side of the adjusting screw 2402 for clamping and fixing on the stair beam, and a handle 2404 is fixedly arranged on the inner side. The end of the adjusting screw 2402 facing the clamping seat 2403 can be rotated to pass through the clamping seat 2403 and extend out of the clamping seat 2403. A limit block 2405 is fixedly arranged in the extended area of the adjusting screw 2402 to prevent the clamping seat 2403 from falling off the adjusting screw 2402. By holding the handle 2404, the adjusting screw 2402 is rotated, and under the action of the thread, the clamping seat 2403 is moved outward or inward to clamp or loosen with the stair beam.
[0034] Preferably, in order to facilitate the movement of the staircase device of the present application, especially to lift or lower the staircase device from a stairwell, the support arm 25 and the first bottom arm 3 and the third bottom arm 5 can be telescopically connected, opened when in use, and retracted when not in use.
[0035] Optionally, the embodiment of the present application provides a preferred implementation in which the support arm 25 is telescopically connected to the first bottom arm 3 and the third bottom arm 5, specifically: the left end face and the right end face of the first bottom arm 3 and the third bottom arm 5 are both provided with a receiving groove adapted to the support arm 25, and the support arm 25 can be slidably set in the receiving groove.
[0036] Preferably, in order to prevent the support arm 25 from excessively sliding out of the receiving slot, affecting the supporting force, and also to prevent the support arm 25 from sliding out of the receiving slot and being lost during movement, affecting the progress of the project, an anti-slip rope 26 is also included, one end of the anti-slip rope 26 is connected to the first support column 11, or the second support column 12, or the third support column 13, or the fourth support column 14, and the other end is connected to the support arm 25, for preventing the support arm 25 from escaping from the receiving slot. Of course, in addition to the anti-slip rope 26, an anti-slip iron chain or the like can also be used.
[0037] Preferably, in order to enhance the reliability of the staircase device of the present application, a first connecting rod 15 is provided between the second bottom arm 4 and the fourth bottom arm 6 between the first staircase 1 and the second staircase 2; a third connecting rod 17 is provided between the second top arm 8 and the fourth top arm 10 between the first staircase 1 and the second staircase 2; a second connecting rod 16 is provided between the first bottom arm 3 and the third bottom arm 5; the middle part of the second connecting rod 16 and the middle part of the first connecting rod 15 are connected together.
[0038] Preferably, in order to improve safety, protect personnel and prevent accidents, a second guardrail 21 is provided on the top surface of the first top arm 7, the second top arm 8, the third top arm 9, the fourth top arm 10 and the third connecting rod 17. In order to allow construction personnel to enter and exit the first staircase 1, a first entrance 22 is provided on the second guardrail 21 at the top area of the first staircase 1; in order to allow construction personnel to enter and exit the second staircase 2, a second entrance 23 is provided on the second guardrail 21 at the top area of the second staircase 2.
[0039] Preferably, in order to protect the front side of the first staircase 1 and the rear side of the second staircase 2 , a first guardrail 18 is provided on the side of the first staircase 1 close to the second staircase 2 , or on the side of the second staircase 2 close to the first staircase 1 .
[0040] Preferably, in order to further protect the rear side of the first staircase 1 and the front side of the second staircase 2, at least one first guard rail 19 is provided between the third top arm 9 and the second supporting column 12, the first guard rail 19 is parallel to the first staircase 1 and is located above the first staircase 1; at least one second guard rail 20 is provided between the first top arm 7 and the fourth supporting column 14, the second guard rail 20 is parallel to the second staircase 2 and is located above the second staircase 2.
[0041] When using:
[0042] The staircase device of the present application is hung on the stairwell under the working surface, and the supporting arm is opened so that it is supported on the floor outside the stairwell to support the staircase device of the present application. At the same time, the handle is held to rotate the adjusting screw. Under the action of the thread, the clamping seat moves outward, and the clamping seat clamps the stair beam to fix the staircase device of the present application firmly.
[0043] The above is a relatively specific and detailed description of the present application through general description and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations can be made to these specific embodiments; however, as long as they do not deviate from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.
Claims
1. A staircase device, characterized in that: The invention comprises a rectangular bottom frame formed by connecting a first bottom arm (3), a second bottom arm (4), a third bottom arm (5) and a fourth bottom arm (6) end to end, and a rectangular top frame formed by connecting a first top arm (7), a second top arm (8), a third top arm (9) and a fourth top arm (10) end to end; the four corners of the bottom frame and the four corners of the top frame are connected together through a first support column (11), a second support column (12), a third support column (13) and a fourth support column (14) to form a rectangular parallelepiped structure; and also comprises a first staircase (1) and a second staircase (2); the bottom of the first staircase (1) is connected to the rear side of the second bottom arm (4), and the top is connected to the rear side of the fourth top arm (10); the bottom of the second staircase (2) is connected to the front side of the fourth bottom arm (6), and the top is connected to the front side of the second top arm (8); the left and right sides of the first bottom arm (3) and the third bottom arm (5) are provided with support arms (25) for supporting the staircase device.
2. A staircase device according to claim 1, characterized in that: The first bottom arm (3) and the third bottom arm (5) are each provided with at least one set of fastening devices (24) for fixing the staircase device.
3. A staircase device according to claim 2, characterized in that: The fastening device (24) comprises a fixing seat (2401) arranged at the bottom of the first bottom arm (3) or the third bottom arm (5); the fixing seat (2401) is threadedly connected to the adjusting screw (2402); a U-shaped clamping seat (2403) is rotatably arranged on the outer side of the adjusting screw (2402) for clamping and fixing on the stair beam, and a handle (2404) is fixedly arranged on the inner side; the adjusting screw (2402) can be rotatably passed through the clamping seat (2403) at one end facing the clamping seat (2403) and extended out of the clamping seat (2403); a limit block (2405) is fixedly arranged in the extended area of the adjusting screw (2402) for preventing the clamping seat (2403) from falling off from the adjusting screw (2402).
4. A staircase device according to claim 3, characterized in that: The support arm (25) is telescopically connected to the first bottom arm (3) and the third bottom arm (5).
5. A staircase device according to claim 4, characterized in that: The left end surface and the right end surface of the first bottom arm (3) and the third bottom arm (5) are both provided with a receiving groove adapted to the support arm (25); the support arm (25) can be slidably arranged in the receiving groove.
6. A staircase device according to claim 5, characterized in that: It also includes an anti-slip rope (26); one end of the anti-slip rope (26) is connected to the first support column (11), or the second support column (12), or the third support column (13), or the fourth support column (14), and the other end is connected to the support arm (25), so as to prevent the support arm (25) from falling out of the accommodating groove.
7. A staircase device according to claim 3, characterized in that: A first connecting rod (15) is provided between the second bottom arm (4) and the fourth bottom arm (6) between the first staircase (1) and the second staircase (2); a third connecting rod (17) is provided between the second top arm (8) and the fourth top arm (10) between the first staircase (1) and the second staircase (2); a second connecting rod (16) is provided between the first bottom arm (3) and the third bottom arm (5); and the middle part of the second connecting rod (16) and the middle part of the first connecting rod (15) are connected together.
8. A staircase device according to claim 7, characterized in that: The top surfaces of the first top arm (7), the second top arm (8), the third top arm (9), the fourth top arm (10) and the third connecting rod (17) are provided with a second guardrail (21); the second guardrail (21) in the top area of the first staircase (1) is provided with a first entrance and exit (22) for construction personnel to enter and exit the first staircase (1); the second guardrail (21) in the top area of the second staircase (2) is provided with a second entrance and exit (23) for construction personnel to enter and exit the second staircase (2).
9. A staircase device according to claim 3, characterized in that: A first guardrail (18) is provided on a side of the first staircase (1) close to the second staircase (2), or a side of the second staircase (2) close to the first staircase (1).
10. A staircase device according to claim 9, characterized in that: At least one first guard bar (19) is provided between the third top arm (9) and the second supporting column (12); the first guard bar (19) is parallel to the first staircase (1) and is located above the first staircase (1); at least one second guard bar (20) is provided between the first top arm (7) and the fourth supporting column (14); the second guard bar (20) is parallel to the second staircase (2) and is located above the second staircase (2).