Integral hoistable manway

Abstract

The utility model provides a whole hoisting formula steel pipe man access, including operation surface lower layer and operation surface, even fixed in the stairwell between operation surface lower layer and operation surface has the vertical pole, and vertical pole three groups are provided with three groups, and the vertical pole between adjacent two groups all is installed steel pipe ladder. Compared with prior art, the utility model has the beneficial effects as follows: by adopting steel pipe to set up integral temporary stair as the passageway, the vertical pole top is protruding the operation surface when setting up, the protruding part installs the railing, and the railing is higher than operation surface 1200mm as the protection, before hoisting and mounting the prefabricated stair of construction, adopts tower crane to place the passageway integral hoisting in the specified site position, after installing the prefabricated stair, again whole hoisting steel pipe ladder to the prefabricated stair, as the passageway and protection of construction layer, this kind of method, saves the repeated erection and dismounting and customizes the cost of temporary finished product steel ladder of each layer operation surface stairway mouth edge protection, and is convenient and fast.

Description

Technical Field

[0001] This utility model is an integrally suspended steel pipe access passage, belonging to the field of prefabricated staircases. Background Technology

[0002] As a very important component of a building, stairs are mostly constructed using traditional cast-in-place methods. With the rise of prefabricated housing in China in recent years, more and more projects are choosing to use prefabricated stairs instead of traditional cast-in-place stairs. Before installing prefabricated stairs, the passage from the stairwell to the work surface is usually provided by custom-made temporary prefabricated steel stairs, and temporary protective measures need to be set up around the stairwell entrance on the work surface.

[0003] Existing steel staircases are welded, and once manufactured, they can only be used in a single scenario and cannot be reused. Furthermore, they have a short service life on the construction site, resulting in significant resource waste. In addition, temporary protective measures are erected around the staircase openings at the work site, which need to be repeatedly erected and dismantled each time a prefabricated staircase is hoisted. Therefore, it is necessary to design an integral hoisting steel pipe access passage. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an integral hoisted steel pipe access passage to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrally suspended steel pipe access passage, comprising a lower working surface and a working surface, wherein uprights are evenly fixed in the stairwell between the lower working surface and the working surface, and three sets of uprights are arranged in groups of three. A steel pipe ladder is installed between each pair of adjacent sets of uprights. Handrails are installed on the uprights below the steel pipe ladders via steel pipe fasteners. A railing is connected to the top of each set of uprights via steel pipe fasteners. A large-mesh net is fixed to the bottom of the steel pipe ladder, and a dense-mesh net is installed below the large-mesh net.

[0006] Furthermore, the steel pipe ladder includes two parallel mounting rods and several sets of steel pipe steps, with treads installed on the steel pipe steps. The mounting rods are all connected to the uprights via steel pipe fasteners, and the mounting rods are inclined.

[0007] Furthermore, the railing is composed of two horizontal steel pipes, and the height difference between the railing and the working surface is 1200mm. The working surface is covered with scaffold boards.

[0008] Furthermore, the handrail is parallel to the mounting rod, and the height difference between the handrail and the mounting rod is between 900-1000mm.

[0009] Furthermore, the steel pipe step is composed of two horizontal step steel pipes with the same height, and both sides of the step steel pipe are connected to the mounting rod through connectors. The height difference of the steel pipe step is between 150-200mm.

[0010] Furthermore, the bottom of the steel pipe ladder is symmetrically provided with support rods on both sides, and the support rods are all connected to the uprights through steel pipe fasteners. The support rods are all parallel to the installation rods, and the support rods abut against the step steel pipes on the inner side of the steel pipe steps.

[0011] Furthermore, the top of the upright is higher than the working surface, and the distance between the uprights in the same group is no more than 1500mm. The upright, together with the steel pipe ladder, handrail and railing, form a steel pipe access passage, and the gap between the steel pipe access passage and the edge of the stairwell is no more than 100mm.

[0012] Furthermore, both sides of the pedal are raised to form footrests, and both sides of the bottom of the pedal are provided with inserts. Both ends of the inserts are connected to sleeves, and the inner diameter of the sleeves matches the outer diameter of the step steel pipe. The sleeves are all annular designs with bottom openings, and the top of the sleeves is provided with slots that match the shape of the inserts.

[0013] Furthermore, the steel pipe fastener includes a first clamp and a second clamp that are rotatably connected, and both the first clamp and the second clamp have gaskets bonded to their inner sides. The inner diameter of the first clamp is consistent with the outer diameter of the railing, the mounting rod, the handrail, and the support rod, and the inner diameter of the second clamp is consistent with the outer diameter of the upright.

[0014] Furthermore, the connector includes a third clamp, a fourth clamp, and a fifth clamp. The inner diameters of the third clamp and the fourth clamp are consistent with the outer diameter of the step steel pipe, and the inner diameter of the fifth clamp is consistent with the outer diameter of the mounting rod. The end of the third clamp near the fourth clamp is integrally connected to a telescopic sleeve, and a telescopic plate is pulled out and connected inside the telescopic sleeve. The telescopic plate is integrally connected to the fourth clamp. A fastening knob is provided at the top of the telescopic sleeve near the fourth clamp, and a storage groove is provided inside the telescopic sleeve below the fastening knob. A limit plate is provided in the storage groove, and the fastening knob is rotatably connected to the limit plate. A limit groove is provided at the top of the telescopic plate that interlocks with the bottom of the limit plate. The fifth clamp is rotatably connected to the side wall of the telescopic sleeve.

[0015] The beneficial effects of this utility model are as follows: This technology uses steel pipes to construct an integral temporary staircase as a passageway. During construction, the top of the uprights extends beyond the working surface, and railings are installed on the extended part. The railings are 1200mm higher than the working surface for protection. Before hoisting the prefabricated staircase, a tower crane is used to hoist the passageway as a whole to the designated location. After the prefabricated staircase is installed, the steel pipe ladder is hoisted onto the prefabricated staircase as a passageway and protection for the construction floor. This method saves the cost of repeatedly erecting and dismantling the edge protection at the staircase entrance on each working surface and customizing temporary prefabricated steel ladders, and is convenient and quick. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of an integrally hoisted steel pipe access passage according to the present invention;

[0018] Figure 2 This is a schematic diagram of a steel pipe ladder structure for an integrally suspended steel pipe access passage according to the present invention;

[0019] Figure 3 This is a schematic diagram of the steel pipe step structure of an integrally suspended steel pipe access passage according to the present invention;

[0020] Figure 4 This is a schematic diagram of the steel pipe fastener structure of an integrally hoisted steel pipe access passage according to the present invention;

[0021] Figure 5 This is a schematic diagram of the disassembly and assembly structure of the connecting parts of an integrally hoisted steel pipe access passage according to this utility model;

[0022] In the diagram: 1. Lower level of the working surface; 2. Steel pipe ladder; 3. Dense mesh netting; 4. Large mesh netting; 5. Handrail; 6. Handrail; 7. Supporting rod; 8. Upright; 9. Working surface; 10. Scaffold board; 11. Steel pipe step; 12. Steel pipe fastener; 1201. First clamp; 1202. Second clamp; 1203. Gasket; 13. Mounting rod; 14. Connector; 15. Step steel pipe; 16. Third clamp; 17. Telescopic sleeve; 1701. Storage slot; 18. Fastening knob; 19. Limiting plate; 20. Telescopic plate; 2001. Limiting groove; 21. Fourth clamp; 22. Fifth clamp; 23. Step; 2301. Toe board; 2302. Insert strip; 24. Sleeve; 2401. Slot. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: an integrally suspended steel pipe access passage, including a lower working surface 1 and a working surface 9. Uprights 8 are evenly fixed in the stairwell between the lower working surface 1 and the working surface 9, and three sets of uprights 8 are arranged in groups of three. A steel pipe ladder 2 is installed between two adjacent sets of uprights 8. Handrails 6 are installed on the uprights 8 below the steel pipe ladder 2 through steel pipe fasteners 12. The top of each set of uprights 8 is connected to a railing 5 through steel pipe fasteners 12. A large-mesh net 4 is fixed at the bottom of the steel pipe ladder 2, and a dense-mesh net 3 is installed below the large-mesh net 4. The design of the large-mesh net 4 and the dense-mesh net 3 can prevent falling objects from injuring people, and the safety of use is higher.

[0025] For example, the steel pipe ladder 2 includes two parallel mounting rods 13 and several sets of steel pipe steps 11, and the steel pipe steps 11 are equipped with treads 23. The mounting rods 13 are all connected to the uprights 8 through steel pipe fasteners 12, and the mounting rods 13 are set at an angle. The steel pipe ladder 2 is assembled from steel pipes of different specifications, which facilitates recycling and reduces the waste of resources.

[0026] For example, the railing 5 is composed of two horizontal steel pipes, and the height difference between the railing 5 and the working surface 9 is 1200mm. The working surface 9 is covered with scaffold boards 10. The railing 5 is 1200mm higher than the working surface 9, which can serve as protection. This saves the cost of repeatedly erecting and dismantling the edge protection at the stairwell of each working surface 9, resulting in higher economic benefits.

[0027] Please see Figure 1 The handrail 6 is parallel to the mounting rod 13, and the height difference between the handrail 6 and the mounting rod 13 is between 900-1000mm. The handrail 6 makes the passage safer to use.

[0028] Please see Figure 2 and Figure 3 The steel pipe step 11 consists of two horizontal and identical step steel pipes 15, and both sides of the step steel pipe 15 are connected to the mounting rod 13 through connectors 14. The height difference of the steel pipe step 11 is between 150-200mm. The steel pipe step 11 is a prefabricated design, which is convenient for disassembly and assembly and easy for subsequent recycling. The height difference of 150-200mm is more in line with walking habits and has higher safety.

[0029] Please see Figure 1 The bottom of the steel pipe ladder 2 is symmetrically provided with support rods 7 on both sides, and the support rods 7 are all connected to the uprights 8 through steel pipe fasteners 12. The support rods 7 are parallel to the installation rods 13, and the support rods 7 abut against the step steel pipes 15 on the inner side of the steel pipe steps 11. The support rods 7 can support the steel pipe steps 11, preventing some steel pipe steps 11 from tilting or falling due to insufficient connection with the installation rods 13, thus improving the safety of use.

[0030] Please see Figure 1 The top of the upright 8 is higher than the working surface 9, and the spacing between the uprights 8 in the same group is no more than 1500mm. The upright 8, together with the steel pipe ladder 2, handrail 6 and railing 5, form a steel pipe access passage. The gap between the steel pipe access passage and the edge of the stairwell is no more than 100mm. The design of a gap of no more than 100mm can prevent construction workers from falling through the gap, making it safer to use.

[0031] Please see Figure 3 Both sides of the footboard 23 are raised to form foot guards 2301, and both sides of the bottom of the footboard 23 are provided with inserts 2302. Both ends of the inserts 2302 are connected to sleeves 24, and the inner diameter of the sleeves 24 matches the outer diameter of the step steel pipe 15. The sleeves 24 are all ring-shaped with an open bottom, and the top of the sleeves 24 is provided with slots 2401 that match the shape of the inserts 2302. The footboard 23 can be installed on the top of the step steel pipe 15 through the sleeves 24, which makes the construction personnel safer when walking. The design of the foot guards 2301 on both sides of the footboard 23 means that no additional side guards need to be installed when assembling the access passage, which ensures safety and reduces assembly steps. The plug-in design makes it easy to disassemble and assemble, and the assembly is quick and convenient.

[0032] Please see Figure 4 The steel pipe fastener 12 includes a first clamp 1201 and a second clamp 1202 that are rotatably connected. Both the first clamp 1201 and the second clamp 1202 have gaskets 1203 bonded to their inner sides. The inner diameter of the first clamp 1201 is consistent with the outer diameter of the railing 5, the mounting rod 13, the handrail 6 and the support rod 7, and the inner diameter of the second clamp 1202 is consistent with the outer diameter of the upright 8. The rotatable connection design allows the inclination angle of the steel pipe ladder 2 to be adjusted according to the actual use, making it more adaptable.

[0033] Please see Figure 5The connector 14 includes a third clamp 16, a fourth clamp 21, and a fifth clamp 22. The inner diameters of the third clamp 16 and the fourth clamp 21 are consistent with the outer diameter of the step steel pipe 15, and the inner diameter of the fifth clamp 22 is consistent with the outer diameter of the mounting rod 13. A telescopic sleeve 17 is integrally connected to one end of the third clamp 16 near the fourth clamp 21, and a telescopic plate 20 is pulled out and connected to the telescopic sleeve 17. The telescopic plate 20 is integrally connected to the fourth clamp 21. A fastening knob 18 is provided at the top of the telescopic sleeve 17 near the fourth clamp 21, and a storage groove 1701 is provided in the telescopic sleeve 17 below the fastening knob 18. A limit plate 19 is provided in the storage groove 1701, and a fastening knob 18 is provided in the storage groove 1701. The knob 18 is rotatably connected to the limiting plate 19. The top of the telescopic plate 20 is provided with a limiting groove 2001 that interlocks with the bottom of the limiting plate 19. The fifth clamp 22 is rotatably connected to the side wall of the telescopic sleeve 17. The design of the telescopic sleeve 17 and the telescopic plate 20 makes the distance between the third clamp 16 and the fourth clamp 21 adjustable. The limiting plate 19 can lock the telescopic sleeve 17 and the telescopic plate 20. Using this connector 14 to assemble the steel pipe step 11 can better control the distance between the two step steel pipes 15. At the same time, one of the assembled step steel pipes 15 rests on the mounting rod 13 and the other rests on the support rod 7, which makes it more stable, less likely to tilt or fall, and safer to use.

[0034] Specific implementation method: During assembly, three uprights 8 are arranged in a group, with the spacing between each group of uprights 8 not exceeding 1500mm, for a total of three groups. At the same time, crossbars are assembled between the three uprights 8 in each group using steel pipe couplers 12, with the crossbar spacing not exceeding 1500mm. Then, steel pipe ladder 2 is assembled between two groups of uprights 8 using steel pipe couplers 12. Support rods 7 are fixed at the bottom of steel pipe ladder 2. Steel pipe ladder 2 is pre-assembled by two installation rods 13 and several steel pipe steps 11 through connectors 14. Then, the treads 23 are installed on the step steel pipes 15 through clamps 24. After assembly, large-mesh net 4 and dense-mesh net 3 are suspended at the bottom of steel pipe ladder 2. Before hoisting the precast stairs, a tower crane is used to hoist the assembled steel pipe access passage to the designated site. After the precast stairs are installed, the steel pipe ladder 2 is hoisted onto the precast stairs as a passage and protection for the construction floor.

[0035] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately adapted to form other embodiments that can be understood by those skilled in the art.

Claims

1. A type of integrally suspended steel pipe access passage, comprising a working surface (9), a lower layer (1), and a working surface (9), characterized in that: Uprights (8) are evenly fixed in the stairwell between the lower level (1) of the working surface (9) and the working surface (9), and three sets of uprights (8) are set in groups of three. A steel pipe ladder (2) is installed between two adjacent sets of uprights (8). A handrail (6) is installed on the uprights (8) below the steel pipe ladder (2) through a steel pipe fastener (12). A railing (5) is connected to the top of each set of uprights (8) through a steel pipe fastener (12). A large mesh net (4) is fixed at the bottom of the steel pipe ladder (2), and a dense mesh net (3) is installed below the large mesh net (4).

2. The integrally suspended steel pipe access passage according to claim 1, characterized in that: The steel pipe ladder (2) includes two parallel mounting rods (13) and several sets of steel pipe steps (11), and the steel pipe steps (11) are equipped with treads (23). The mounting rods (13) are all connected to the uprights (8) through steel pipe fasteners (12), and the mounting rods (13) are set at an angle.

3. The integrally suspended steel pipe access passage according to claim 1, characterized in that: The railing (5) is made of two horizontal steel pipes, and the height difference between the railing (5) and the working surface (9) is 1200mm. The working surface (9) is covered with scaffold boards (10).

4. The integrally suspended steel pipe access passage according to claim 2, characterized in that: The handrail (6) is parallel to the mounting rod (13), and the height difference between the handrail (6) and the mounting rod (13) is between 900-1000mm.

5. The integrally suspended steel pipe access passage according to claim 2, characterized in that: The steel pipe step (11) is composed of two horizontal and uniformly high step steel pipes (15), and both sides of the step steel pipe (15) are connected to the mounting rod (13) through connectors (14). The height difference of the steel pipe step (11) is between 150-200mm.

6. The integrally suspended steel pipe access passage according to claim 5, characterized in that: The bottom of the steel pipe ladder (2) is symmetrically provided with support rods (7) on both sides, and the support rods (7) are all connected to the uprights (8) through steel pipe fasteners (12). The support rods (7) are all parallel to the installation rods (13), and the support rods (7) abut against the step steel pipes (15) on the inner side of the steel pipe steps (11).

7. The integrally suspended steel pipe access passage according to claim 1, characterized in that: The top of the upright (8) is higher than the working surface (9), and the distance between the uprights (8) in the same group is no more than 1500mm. The upright (8), together with the steel pipe ladder (2), handrail (6) and railing (5), form a steel pipe access passage, and the gap between the steel pipe access passage and the edge of the stairwell is no more than 100mm.

8. The integrally suspended steel pipe access passage according to claim 2, characterized in that: Both sides of the pedal (23) are raised to form foot guards (2301), and both sides of the bottom of the pedal (23) are provided with inserts (2302). Both ends of the inserts (2302) are connected with sleeves (24), and the inner diameter of the sleeves (24) matches the outer diameter of the step steel pipe (15). The sleeves (24) are all ring-shaped with bottom openings, and the top of the sleeves (24) is provided with slots (2401) that match the shape of the inserts (2302).

9. The integrally suspended steel pipe access passage according to claim 6, characterized in that: The steel pipe fastener (12) includes a first clamp (1201) and a second clamp (1202) that are rotatably connected. Both the first clamp (1201) and the second clamp (1202) have gaskets (1203) glued to their inner sides. The inner diameter of the first clamp (1201) is consistent with the outer diameter of the railing (5), the mounting rod (13), the handrail (6) and the support rod (7), and the inner diameter of the second clamp (1202) is consistent with the outer diameter of the upright (8).

10. The integrally suspended steel pipe access passage according to claim 5, characterized in that: The connector (14) includes a third clamp (16), a fourth clamp (21), and a fifth clamp (22). The inner diameters of the third clamp (16) and the fourth clamp (21) are consistent with the outer diameter of the step steel pipe (15), and the inner diameter of the fifth clamp (22) is consistent with the outer diameter of the mounting rod (13). The end of the third clamp (16) closest to the fourth clamp (21) is integrally connected to a telescopic sleeve (17), and a telescopic plate (20) is pulled out and connected inside the telescopic sleeve (17). The telescopic plate (20) is integrally connected to the fourth clamp (21). The telescopic sleeve (17) is connected to a fastening knob (18) at one end near the fourth clamp (21). A storage groove (1701) is provided in the telescopic sleeve (17) below the fastening knob (18). A limiting plate (19) is provided in the storage groove (1701). The fastening knob (18) is rotatably connected to the limiting plate (19). A limiting groove (2001) is provided at the top of the telescopic plate (20) and engages with the bottom of the limiting plate (19). The fifth clamp (22) is rotatably connected to the side wall of the telescopic sleeve (17).

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