Telescopic detachable turnover construction steel stair

Abstract

The utility model discloses a telescopic detachable turnover construction steel stair, including steel ladder, the steel ladder outside is provided with extension mechanism, the extension mechanism includes telescopic link and quick -mounting pole, and telescopic link sets up at both sides of steel ladder, and quick -mounting pole both ends all are provided with fixed mechanism installation in telescopic link outer wall, the both ends of steel ladder bottom surface all are fixed with the sliding block, and multiple groups of sliding blocks are slid in telescopic link inner wall respectively, the fixed mechanism includes fixed sleeve and plug -in pole, and plug -in pole is inserted in quick -mounting pole with telescopic link, and fixed sleeve is inserted in plug -in pole bottom end, and the inner wall of fixed sleeve is seted up with the installation groove, the installation groove is provided with multiple groups and is slid and installed respectively with the clamping block, and the outer wall of plug -in pole is seted up with the clamping groove, and the outer wall between multiple groups of clamping blocks and installation groove all are connected with the push spring and are all clamped in the clamping groove, and the device is through the design of the combination telescopic link and quick -mounting pole, makes steel ladder can be flexibly telescopic adjustment according to the need, and ensures stable locking effect in the use process.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, it relates to a telescopic, detachable, and reusable steel staircase for construction. Background Technology

[0002] In construction scenarios, the length of steel ladders often needs to be flexibly adjusted according to the site environment. Traditional steel ladders usually adopt a fixed structure or a simple plug-in design, which requires manual disassembly and reassembly for adjustment. This is not only cumbersome to operate, but also lacks a reliable locking mechanism. The reusability of steel ladders requires them to have quick assembly and disassembly functions, but existing technologies often cannot balance convenience and stability. Although common snap-fit ​​connections can achieve quick installation, the locking strength is insufficient and they are easily detached due to external impact. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model provides a telescopic, detachable, and reusable steel staircase for construction, so as to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a telescopic, detachable, and reusable steel staircase, comprising a steel ladder, an extension mechanism provided on the outer side of the steel ladder, the extension mechanism comprising a telescopic rod and a quick-installation rod, the telescopic rod being provided on both sides of the steel ladder, and a fixing mechanism being provided at both ends of the quick-installation rod and installed on the outer wall of the telescopic rod, the bottom surface of the steel ladder being fixedly provided with sliders at both ends, multiple sets of sliders sliding on the inner wall of the telescopic rod respectively, the fixing mechanism comprising a fixing sleeve and an insert rod, the insert rod being inserted into the quick-installation rod and the telescopic rod, the fixing sleeve being inserted into the bottom end of the insert rod, the inner wall of the fixing sleeve being provided with an installation groove, the installation groove being provided with multiple sets of locking blocks slidably installed thereon, the outer wall of the insert rod being provided with a locking groove, and a push spring being provided between the outer wall of the multiple sets of locking blocks and the installation groove, the multiple sets of locking blocks being engaged in the locking groove.

[0005] The present invention is further configured such that an inner sleeve is slidably provided on the inner side of the fixed sleeve, an abutment plate is fixedly provided at the bottom end of the inner sleeve, and a compression spring is provided between the outer wall of the abutment plate and the fixed sleeve. Multiple sets of compression springs are provided, which can effectively improve the stability and locking performance of the steel ladder and prevent loosening.

[0006] The present invention is further configured such that a sliding groove is provided on the outer wall of the fixed sleeve, and multiple sets of sliding grooves are provided and sliding sleeves are slidably connected thereto. An unlocking sleeve is fixedly provided on the inner side of the sliding sleeve, which facilitates quick unlocking and improves disassembly efficiency.

[0007] The present invention is further provided with a compression spring connecting the sliding sleeve and the fixed sleeve, which enhances the feel of operation during the unlocking process, reduces the required disassembly force, and makes the operation smoother.

[0008] The present invention is further configured such that the outer wall of the quick-installation rod has an insertion hole, and the outer wall of the telescopic rod has an installation hole. Multiple sets of installation holes are provided, and the insertion rod is inserted into the insertion hole and the installation hole to ensure the stable connection of the steel ladder and improve the fixing efficiency during use.

[0009] The present invention is further configured such that each of the multiple sets of sliders has a locking hole on its outer wall, and the locking hole is inserted into the rod, which effectively enhances the locking of each component during the extension and retraction of the steel ladder and ensures safety.

[0010] The present invention is further configured such that the top surfaces of the multiple sets of card blocks are slidably connected to the multiple sets of mounting slots, so as to ensure that the card blocks slide smoothly in the mounting slots and that the card blocks can be accurately engaged and firmly fixed.

[0011] The present invention is further configured such that the top end of the insertion rod and the inner side of the multiple sets of locking blocks are both set as inclined surfaces, which helps to quickly insert the insertion rod and smoothly fix the locking blocks, thereby improving the convenience of installation and disassembly.

[0012] Compared with the prior art, this utility model provides a telescopic, detachable, and reusable steel staircase for construction, which has the following advantages: 1. This device combines the design of telescopic rods and quick-release rods, allowing the steel ladder to be flexibly extended and retracted as needed, while ensuring a stable locking effect during use. The telescopic rods work together with the sliders to smoothly adjust the length of the steel ladder, and the sliders are equipped with locking holes to ensure the secure fixing of the telescopic components, preventing loosening due to external impacts or vibrations, thus improving the safety and stability of the overall structure.

[0013] 2. The fixing mechanism achieves quick assembly and disassembly through the synergistic action of the insertion rod and the locking block. The insertion rod and the mounting hole and insertion hole are connected to each other, so that the steel ladder can be quickly fixed when the length is adjusted. At the same time, the structure of the push spring and the locking block ensures a firm lock, avoiding the loosening problem that may occur in traditional steel ladders during the extension and retraction process, thus improving operating efficiency and safety.

[0014] 3. When unlocking and disassembly are required, the unlocking mechanism works in conjunction with the sliding sleeve and the unlocking sleeve to allow the locking block to disengage from the slot, easily disassembling the steel ladder. The compression spring design effectively reduces the operating force required during the unlocking process, making the disassembly and assembly process smoother and facilitating quick on-site adjustments and replacements, thus meeting the needs of efficient construction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a telescopic, detachable, and reusable steel staircase for construction according to this utility model. Figure 2 This is a schematic diagram of the disassembly structure of the fixing mechanism in this utility model; Figure 3 This is a cross-sectional view of the fixing sleeve in this utility model; Figure 4 This is a cross-sectional view of the mounting groove in this utility model; Figure 5 This is a schematic diagram of the structure of the sliding sleeve and the unlocking sleeve in this utility model.

[0016] In the diagram: 1. Steel ladder; 2. Telescopic rod; 3. Quick-release rod; 4. Slider; 401. Fixing sleeve; 5. Insert rod; 6. Mounting groove; 7. Locking block; 8. Locking slot; 9. Push spring; 10. Inner sleeve; 11. Abutment plate; 12. Compression spring; 13. Slide groove; 14. Slide sleeve; 15. Unlocking sleeve; 16. Compression spring; 17. Insertion hole; 18. Mounting hole; 19. Lock hole. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0020] Please see Figures 1-5 A retractable and detachable reusable steel staircase includes a steel staircase 1. An extension mechanism is provided on the outside of the steel staircase 1. The extension mechanism includes a telescopic rod 2 and a quick-installation rod 3. The telescopic rod 2 is located on both sides of the steel staircase 1. Both ends of the quick-installation rod 3 are provided with fixing mechanisms installed on the outer wall of the telescopic rod 2. Both ends of the bottom surface of the steel staircase 1 are fixedly provided with sliders 4. Multiple sets of sliders 4 slide on the inner wall of the telescopic rod 2. The fixing mechanism includes a fixing sleeve 401 and an insert rod 5. The insert rod 5 is inserted into the quick-installation rod 3 and the telescopic rod 2. The fixing sleeve 401 is inserted into the bottom end of the insert rod 5. The inner wall of the fixing sleeve 401 has an installation groove 6. The installation groove 6 is provided with multiple sets of locking blocks 7, each of which is slidably installed. The outer wall of the insert rod 5 has a locking groove 8. Push springs 9 are connected between the outer walls of the multiple sets of locking blocks 7 and the installation groove 6. The multiple sets of locking blocks 7 are engaged in the locking groove 8.

[0021] An inner sleeve 10 is slidably provided on the inner side of the fixed sleeve 401. An abutment plate 11 is fixedly provided at the bottom end of the inner sleeve 10. A compression spring 12 is provided between the outer wall of the abutment plate 11 and the fixed sleeve 401. Multiple sets of compression springs 12 are provided.

[0022] The outer wall of the fixed sleeve 401 is provided with a sliding groove 13, and multiple sets of sliding grooves 13 are provided and slidably connected with a sliding sleeve 14. An unlocking sleeve 15 is fixedly provided on the inner side of the sliding sleeve 14.

[0023] A compression spring 16 is provided between the sliding sleeve 14 and the fixed sleeve 401.

[0024] The quick-install rod 3 has an insertion hole 17 on its outer wall, and the telescopic rod 2 has an installation hole 18 on its outer wall. Multiple sets of installation holes 18 are provided, and the insertion rod 5 is inserted into the insertion hole 17 and the installation hole 18.

[0025] Each set of sliders 4 has a locking hole 19 on its outer wall, and the locking hole 19 is inserted into the plug rod 5.

[0026] The top surfaces of multiple sets of card blocks 7 are slidably connected to multiple sets of mounting slots 6.

[0027] The top of the insertion rod 5 and the inner side of the multiple sets of locking blocks 7 are both set as bevels.

[0028] In this embodiment, during use, multiple sets of telescopic rods 2 are slid along the slider 4, then the locking hole 19 is aligned with the mounting hole 18, the insertion holes 17 at both ends of the quick-install rod 3 are aligned with the mounting holes 18 on the outer wall of the multiple sets of telescopic rods 2 and inserted into the insertion rod 5, then the insertion rod 5 is inserted into the insertion hole 17 and into the mounting hole 18, then the fixing sleeve 401 is inserted into the insertion rod 5, and the top of the insertion rod 5 pushes the inner wall of the multiple sets of locking blocks 7 to rotate and compress the push spring 9. When the insertion rod 5 is fully inserted into the fixing sleeve 401, the multiple sets of push spring 9 reset and push the locking block 7 into the slot 8 to fix the insertion rod 5. At the same time, the abutment plate 11 abuts against the outer wall of the telescopic rod 2 and compresses the multiple sets of compression springs 12. By fixing the multiple sets of quick-install rods 3 in sequence, the telescopic extension and locking of the steel ladder 1 can be completed.

[0029] More specifically, when it is necessary to unlock the fixing mechanism, push the sliding sleeve 14 to compress the compression spring 16 and drive the unlocking sleeve 15 to slide. The unlocking sleeve 15 pushes multiple sets of locking blocks 7 to rotate and disengage from the slot 8, releasing the locking of the insertion rod 5. Then, pull the insertion rod 5 out of the insertion hole 17 and the mounting hole 18 to release the lock with the steel ladder 1 and disassemble the quick-release rod 3.

[0030] In summary, when using or operating the entire device: During use, slide the multiple sets of telescopic rods 2 along the slider 4, then align the locking hole 19 with the mounting hole 18. Align the insertion holes 17 at both ends of the quick-installation rod 3 with the mounting holes 18 on the outer wall of the multiple sets of telescopic rods 2 and insert them into the insertion rod 5. Then, insert the insertion rod 5 into the insertion hole 17 and into the mounting hole 18. Next, insert the fixing sleeve 401 into the insertion rod 5. Push the inner wall of the multiple sets of locking blocks 7 through the top of the insertion rod 5 to rotate it and compress the push spring 9. When the insertion rod 5 is fully inserted into the fixing sleeve 401, the multiple sets of push springs 9 reset and push the locking blocks 7 into the slot 8 to fix the insertion rod 5. At the same time, the abutment plate 11 abuts against the outer wall of the telescopic rod 2 and compresses the multiple sets of compression springs 12. By fixing the multiple sets of quick-installation rods 3 in sequence, the telescopic extension and locking of the steel ladder 1 can be completed.

[0031] When it is necessary to unlock the fixing mechanism, push the sliding sleeve 14 to compress the compression spring 16 and drive the unlocking sleeve 15 to slide. The unlocking sleeve 15 pushes multiple sets of locking blocks 7 to rotate and disengage from the slot 8, releasing the locking of the insertion rod 5. Then, pull the insertion rod 5 out of the insertion hole 17 and the mounting hole 18 to release the lock with the steel ladder 1 and disassemble the quick-release rod 3.

[0032] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. 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 retractable and detachable reusable steel staircase for construction, comprising a steel ladder (1), characterized in that: An extension mechanism is provided on the outside of the steel ladder (1). The extension mechanism includes a telescopic rod (2) and a quick-installation rod (3). The telescopic rod (2) is provided on both sides of the steel ladder (1). Both ends of the quick-installation rod (3) are provided with a fixing mechanism installed on the outer wall of the telescopic rod (2). Both ends of the bottom surface of the steel ladder (1) are fixed with sliders (4). Multiple sets of sliders (4) slide on the inner wall of the telescopic rod (2). The fixing mechanism includes a fixing sleeve (401) and a plug rod (5). The plug rod (5) is inserted into the quick-installation rod (3) and the telescopic rod (2). The fixing sleeve (401) is inserted into the bottom end of the plug rod (5). The inner wall of the fixing sleeve (401) is provided with an installation groove (6). Multiple sets of locking blocks (7) are provided in the installation groove (6) and are slidably installed. The outer wall of the plug rod (5) is provided with a slot (8). Push springs (9) are connected between the outer walls of the multiple sets of locking blocks (7) and the installation groove (6). The multiple sets of locking blocks (7) are engaged in the slot (8).

2. The telescopic, detachable, and reusable steel staircase according to claim 1, characterized in that: An inner sleeve (10) is slidably provided on the inner side of the fixed sleeve (401). An abutment plate (11) is fixedly provided at the bottom end of the inner sleeve (10). A compression spring (12) is connected between the outer wall of the abutment plate (11) and the fixed sleeve (401). Multiple sets of compression springs (12) are provided.

3. A telescopic, detachable, and reusable steel staircase according to claim 1 or 2, characterized in that: The outer wall of the fixed sleeve (401) is provided with a sliding groove (13), and the sliding groove (13) is provided in multiple sets and is slidably connected with a sliding sleeve (14). The inner side of the sliding sleeve (14) is fixedly provided with an unlocking sleeve (15).

4. A telescopic, detachable, and reusable steel staircase according to claim 3, characterized in that: A compression spring (16) is provided between the sliding sleeve (14) and the fixed sleeve (401).

5. A telescopic, detachable, and reusable steel staircase according to claim 1, characterized in that: The quick-release rod (3) has an insertion hole (17) on its outer wall and the telescopic rod (2) has an installation hole (18) on its outer wall. The installation hole (18) is provided in multiple sets, and the insertion rod (5) is inserted into the insertion hole (17) and the installation hole (18).

6. A telescopic, detachable, and reusable steel staircase according to claim 1, characterized in that: multiple sets The outer wall of each slider (4) is provided with a lock hole (19), and the lock hole (19) is inserted into the rod (5).

7. A telescopic, detachable, and reusable steel staircase according to claim 1, characterized in that: The top surfaces of the multiple sets of card blocks (7) are slidably connected to the multiple sets of mounting slots (6).

8. A telescopic, detachable, and reusable steel staircase according to claim 1, characterized in that: The top of the insertion rod (5) and the inner side of the multiple sets of locking blocks (7) are both set as inclined surfaces.

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