Lifting type rectangular-ambulatory-plane stair edge protection system and using method

Abstract

The invention belongs to the field of stair edge protection, and particularly relates to a lifting type concentric-square-shaped stair edge protection system and a using method.The lifting type concentric-square-shaped stair edge protection system comprises a concentric-square-shaped stair and a four-direction adjustable framework system arranged in the middle of the concentric-square-shaped stair, and the four-direction adjustable framework system comprises four basic frameworks; the adjustable jacking devices are fixed to the peripheries of the telescopic supporting devices on the two sides of the four foundation frameworks, the two double-row square pipes are fixed to the tops of the inner surfaces of the four foundation frameworks, and each telescopic supporting device comprises a second square pipe fixed to one side of the two adjacent foundation frameworks and a third square pipe inserted into the second square pipe; welding can be directly completed in a factory or a workshop, operability is good, field welding is not needed, the industrialization degree is high, four-direction adjustment can be achieved by rotating the adjustable supporting adjusting screw, structural deviation and installation deviation are absorbed, and installation precision is high.

Description

Technical Field

[0001] The invention belongs to the field of stair edge protection, in particular to a lifting type U-shaped stair edge protection system and a use method thereof. Background Art

[0002] In the current housing construction, more and more projects choose to adopt the aluminum formwork early dismantling system instead of the traditional wooden formwork construction technology. The early dismantling system generally retains at least 3 sets of supports below the working layer to meet the concrete curing strength to meet the design requirements. It is inevitable that it is impossible to set up edge protection within the 3 layers below the working layer, so a large number of edge operations and edge passages will occur during the construction process. Therefore, safety issues arise with the advancement of construction. How to effectively ensure the safety of workers during the construction process is also the most concerned issue now.

[0003] The traditional temporary safety protection used in this area is extremely easy to be damaged, dismantled or removed due to collisions during construction or traffic, causing construction workers to work in an unsafe environment: in the process of erecting external scaffolding, it causes unsafe potential danger factors: for dynamic work processes, the protection poses a certain threat to the safety of the workers themselves. Therefore, no matter from the perspective of construction safety or economic cost, it cannot meet the safety protection requirements under specific conditions.

[0004] To this end, the present invention provides a lifting type U-shaped staircase edge protection system and a use method. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: the lifting type U-shaped staircase edge protection system described in the present invention comprises a U-shaped staircase and a four-way adjustable skeleton system arranged at the middle position of the U-shaped staircase;

[0007] The four-way adjustable frame system includes four basic frames, adjustable top support devices fixed around the telescopic support devices on both sides of the four basic frames, and two double-row square tubes fixed on the top of the inner surfaces of the four basic frames.

[0008] Preferably, the telescopic support device includes a second square tube fixed to one side of the basic frame at two adjacent positions and a third square tube inserted into the second square tube.

[0009] Preferably, the adjustable supporting device comprises a first square tube fixed to the other side of two basic frames at two adjacent positions, an adjustable supporting adjustment screw arranged at one end of the first square tube, and a steel plate fixed to one end of the adjustable supporting adjustment screw.

[0010] Preferably, it also includes a standardized edge protection system welded and fixed around the adjustable frame system, the standardized edge protection system includes a first step standardized protection handrail fixed on the upward surface of the circular staircase tread; a second step standardized protection handrail fixed on the upward surface of the circular staircase tread and located on the top of the first step standardized protection handrail; and a third step standardized protection handrail fixed on the upward surface of the circular staircase tread.

[0011] Preferably, it also includes a horizontal hard protection system welded in the middle of each layer of the frame, and the horizontal hard protection system includes angle steel welded inside the long side of the frame and a perforated mesh welded and fixed on the surface of the angle steel.

[0012] Preferably, the double-row square tube also includes a clamping assembly for auxiliary binding, and the clamping assembly includes a positioning sleeve fixed to the surface of one end of the double-row square tube, a fixing block fixed to the upper and lower ends of the double-row square tube, an inner warehouse opened inside the fixing block, a movable shaft rotatably connected to the middle position of the inner cavity of the inner warehouse, a threaded rod rotatably connected to the positions on both sides of the inner warehouse, and clamping blocks threadedly connected to the outer circumference of the threaded rod and extending from both sides of the outside of the fixing block.

[0013] Preferably, the limiting clamping assembly also includes a clamping groove opened on the surface of the clamping block, a first bevel gear fixedly sleeved on the outer circumference of the movable shaft, a second bevel gear fixedly sleeved on the outer circumference of the threaded rod and extending to the inside of the fixed block, a block ring fixedly sleeved at the middle position of the outer circumference of the threaded rod, and a limiting shaft fixed to one side of the fixed block and located at the top of the threaded rod, the clamping block and the limiting shaft are slidingly connected, the first bevel gears and the two second bevel gears at adjacent positions are meshingly connected, and the top plate of one of the movable shafts located at the upper and lower ends of the double-row square tubes passes through the adjacent fixed block and extends out of the fixed block.

[0014] A method for using a lifting type U-shaped staircase edge protection system, the method adopts the lifting type U-shaped staircase edge protection system, and comprises the following steps:

[0015] Step 1: Calculate the slope of the stair tread and the height of each step surface, so that the standardized edge protection system and the supporting device and the adjustable top support devices around are adapted to the standard floor structure staircase of the building, and finally connect the standardized edge protection system and the horizontal hard protection system into a whole through welding process;

[0016] Step 2: Install the support device and the adjustable top support devices on the four-way adjustable frame system;

[0017] Step 3: Use a tower crane to hoist from the floor working surface and place it into the circular staircase;

[0018] Step 4: Extend the third square tube of each layer's support device into the second square tube, and place the other end on the stair tread surface, with the overlap length not less than 200mm;

[0019] Step 5: Insert and fix the adjustable support screw of each layer into the first square tube, and tighten the steel plate and the structural surface by rotating the adjustable support screw;

[0020] Step 6: Use the hanging hammer to adjust the adjustable support screw to adjust the verticality deviation of the device to meet the specification requirements and complete the installation;

[0021] Step seven: Use the double-row square tubes on the top to tie and fix the tower crane. During the process of tying and fixing the tower crane, limit the binding ropes in the tying process through limiting fixation, and self-check to lift the device of the present invention to the working layer according to the edge protection requirements as the construction progresses of the main structure.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The present invention can be completed by direct welding in a factory or in a workshop, has good operability, does not require on-site welding, and has a high degree of industrialization. The present invention can achieve four-way azimuth adjustment by rotating the adjustable support adjustment screw, absorbs structural deviation and installation deviation, and has high installation accuracy;

[0024] 2. The present invention can position the binding ropes used for binding through the limiting assembly during the process of binding double-row square tubes by the tower crane, thereby improving the stability of the tower crane binding, and the movement process of the device is smoother according to the edge protection requirements as the construction progress of the main structure, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 The figure is a schematic diagram of the internal structure of a lifting type U-shaped stair edge protection system provided by an embodiment of the present invention.

[0027] Figure 2 The present invention provides a three-dimensional rendering schematic diagram of the overall structure of a lifting type U-shaped stair edge protection system.

[0028] Figure 3 The invention provides a schematic diagram of the installation of a lifting type U-shaped stair edge protection system according to an embodiment of the present invention.

[0029] Figure 4 It is a partial enlarged schematic diagram of various components of the implementation of the present invention.

[0030] Figure 5 It is a schematic diagram of the structure of the standardized edge protection system of the present invention.

[0031] Figure 6 It is a schematic structural diagram of a double-row square tube according to the first embodiment of the present invention.

[0032] Figure 7 It is a structural schematic diagram of a standardized edge protection system of the present invention.

[0033] Figure 8 It is a structural schematic diagram of a horizontal hard protection system of the present invention.

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of double-row square tubes in the second embodiment of the present invention.

[0035] Fig.10 It is a schematic diagram of the three-dimensional structure of the double-row square tubes in the front view direction of the second embodiment of the present invention.

[0036] Fig.11 It is a schematic diagram of the cross-sectional structure of the double-row square tubes in the front view direction of the second embodiment of the present invention.

[0037] Fig.12 In the second embodiment of the present invention Fig.11 A schematic diagram of the enlarged structure at point A in the middle.

[0038] Fig.13 It is a schematic flow chart of the method for using the present invention.

[0039] In the figure: 1. Four-way adjustable skeleton system; 11. Basic skeleton; 12. Adjustable top support device; 121. Steel plate; 122. Adjustable support adjustment screw; 123. First square tube; 124. Second square tube; 125. Third party tube; 13. Double-row square tube; 1301. Positioning sleeve; 1302. Fixing block; 1303. Inner bin; 1304. Movable shaft; 1305. First bevel gear; 1306. Threaded rod; 1307. Second bevel gear; 1308. Block ring; 1309. Clamp block; 1310. Clamp groove; 1311. Limiting shaft; 2. Standardized edge protection system; 21. First step standardized protection handrail; 22. Second step standardized protection handrail; 23. Third step standardized protection handrail; 3. Horizontal hard protection system; 31. Angle steel; 32. Perforated mesh; 4. Circular staircase. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0041] Embodiment 1:

[0042] like Figures 1 to 8 As shown, a lifting type U-shaped staircase edge protection system according to an embodiment of the present invention comprises a U-shaped staircase 4 and a four-way adjustable skeleton system 1 arranged at the middle position of the U-shaped staircase 4;

[0043] like Figures 1 to 8 As shown, the four-way adjustable skeleton system 1 includes four basic skeletons 11, adjustable top support devices 12 fixed to the four basic skeletons 11 on both sides of the telescopic support device around the four basic skeletons, and two double-row square tubes 13 fixed to the top of the inner surface of the four basic skeletons 11;

[0044] like Figures 1 to 8 As shown, the telescopic support device includes a second square tube 124 fixed to one side of the basic frame 11 at two adjacent positions and a third square tube 125 inserted into the second square tube 124;

[0045] like Figures 1 to 8 As shown, the adjustable supporting device 12 includes a first square tube 123 fixed to the other side of two basic frames 11 at two adjacent positions, an adjustable supporting adjustment screw 122 arranged at one end of the first square tube 123, and a steel plate 121 fixed to one end of the adjustable supporting adjustment screw 122.

[0046] The double row of square tubes 13 on the top are used for tower crane binding and fixing, with a size of 50×50mm. The supporting device and the adjustable top supporting devices on all sides are close to the steel plate with a size of 140×140mm on the surface of the structure. The adjustable support adjusting screw is used to adjust the distance between the foundation frame and the surface of the structure. The adjustable support adjusting screw is extended into and fixed in the first square tube with a size of 40×40mm. The third tube of the telescopic supporting device with a size of 40×40mm is extended into the second square tube with a size of 50×50mm.

[0047] like Figures 1 to 8 As shown, as a preferred embodiment of the present invention, it also includes a standardized edge protection system 2 welded and fixed around the adjustable skeleton system 1, and the standardized edge protection system 2 includes a first step standardized protection handrail 21 fixed on the step surface of the circular staircase 4 upward; a second step standardized protection handrail 22 fixed on the step surface of the circular staircase 4 upward and located at the top of the first step standardized protection handrail 21; and a third step standardized protection handrail 22 fixed on the step surface of the circular staircase 4 upward and located.

[0048] like Figures 1 to 8As shown, it also includes a horizontal hard protection system 3 welded in the middle of each layer of the frame. The horizontal hard protection system 3 includes an angle steel 31 welded inside the long side of the frame and a perforated mesh 32 welded and fixed on the surface of the angle steel 321.

[0049] Embodiment 2:

[0050] like Figures 9 to 12 As shown, the double-row square tube 13 also includes a clamping assembly for auxiliary binding, which includes a positioning sleeve 1301 fixed to the surface of one end of the double-row square tube 13, a fixing block 1302 fixed to the upper and lower ends of the double-row square tube 13, an inner bin 1303 opened inside the fixing block 1302, a movable shaft 1304 rotatably connected to the middle position of the inner cavity of the inner bin 1303, a threaded rod 1306 rotatably connected to the positions on both sides of the inner bin 1303, and clamping blocks 1309 threadedly connected to the outer circumference of the threaded rod 1306 and extending from the outside of the fixing block 1302.

[0051] The clamping limit assembly also includes a clamping groove 1310 opened on the surface of the clamping block 1309, a first bevel gear 1305 fixedly sleeved on the outer circumference of the movable shaft 1304, a second bevel gear 1307 fixedly sleeved on the outer circumference of the threaded rod 1306 and extending to the inside of the fixed block 1303, a blocking ring 1308 fixedly sleeved at the middle position of the outer circumference of the threaded rod 1306, and a limiting shaft 1311 fixed to one side of the fixed block 1303 and located at the top of the threaded rod 1306, the clamping block 1309 and the limiting shaft 1311 are slidingly connected, the first bevel gear 1305 and the two second bevel gears 1307 at adjacent positions are meshingly connected, and the top plate of one of the movable shafts 1304 located at the upper and lower ends of the double-row square tube 13 passes through the adjacent fixed block 1302 and extends out of the fixed block 1302;

[0052] When the double-row square tubes are tied by a tower crane, the binding rope is passed through two positioning sleeves 1301 in the same vertical direction during the binding process, and after being wrapped around the double-row square tube 13 for one circle, one of the movable shafts 1304 at the upper and lower ends of the double-row square tube 13 is rotated in turn, so that one of the first bevel gears 1305 is rotated, so that under the meshing action between the first bevel gear 1305 and the second bevel gear 1307, multiple threaded rods 1306 are in a rotating state. Since the external thread structures on both sides of the outer circumference of the threaded rod 1306 are arranged in opposite directions to each other, and the limiting shaft 1311 has a limiting effect on the clamping block 1309, the distance between the two adjacent clamping blocks 1309 is reduced under the driving action of the threaded structure between the clamping block 1309 and the adjacent threaded rod 1306, so that the binding rope is placed in the two clamping grooves 1310 to clamp the binding rope on the top plate surface of the double-row square tube 13, thereby improving the stability of the double-row square tube 13 tied by the tower crane.

[0053] A method for using a lifting type U-shaped staircase edge protection system, the method adopts the lifting type U-shaped staircase edge protection system, and comprises the following steps:

[0054] Step 1: Calculate the slope of the stair tread and the height of each step surface, so that the standardized edge protection system 2 and the supporting device and the adjustable top support device 12 around it are adapted to the standard floor structure staircase of the building, and finally connect the standardized edge protection system 2 and the horizontal hard protection system 3 into a whole through welding process;

[0055] Step 2: Install the supporting device and the adjustable top supporting devices 12 on the four-way adjustable skeleton system 1;

[0056] Step 3: Use a tower crane to hoist from the floor working surface and place it into the circular staircase 4;

[0057] Step 4: Insert the third square tube 125 of each layer's support device into the second square tube 124, and place the other end on the stair tread surface, with the overlap length not less than 200 mm;

[0058] Step 5: Extend the adjustable support screw 122 of each layer into and fix it in the first square tube 12, and tighten the steel plate 121 to the structural surface by rotating the adjustable support screw 122;

[0059] Step 6: Use a hanging hammer to adjust the adjustable support adjusting screw 122 to adjust the verticality deviation of the device to meet the specification requirements, and complete the installation;

[0060] Step seven: The double-row square tubes 13 on the top are used for tower crane binding and fixing. During the tower crane binding and fixing process, the binding ropes are limited by limiting the binding process, and self-checking is performed to lift the device of the present invention to the working layer according to the edge protection requirements as the construction progresses of the main structure.

Claims

1. A lifting type U-shaped staircase edge protection system, comprising a U-shaped staircase (4), characterized in that: It also includes a four-way adjustable skeleton system (1) arranged at the middle position of the circular staircase (4); The four-way adjustable skeleton system (1) comprises four basic skeletons (11), adjustable top support devices (12) fixed around the telescopic support devices on both sides of the four basic skeletons (11), and two double-row square tubes (13) fixed on the top of the inner surface of the four basic skeletons (11).

2. The lifting type U-shaped staircase edge protection system according to claim 1 is characterized in that: The telescopic support device comprises a second square tube (124) fixed to one side of the basic frame (11) at two adjacent positions and a third square tube (125) inserted into the second square tube (124).

3. The lifting type U-shaped staircase edge protection system according to claim 2 is characterized in that: The adjustable supporting device (12) comprises a first square tube (123) fixed to the other side of two basic frames (11) at two adjacent positions, an adjustable supporting adjustment screw (122) arranged at one end of the first square tube (123), and a steel plate (121) fixed to one end of the adjustable supporting adjustment screw (122).

4. The lifting type U-shaped staircase edge protection system according to claim 3 is characterized in that: It also includes a standardized edge protection system (2) welded and fixed around the adjustable skeleton system (1), the standardized edge protection system (2) including a first step standardized protection handrail (21) fixed on the step surface of the circular staircase (4) upward; a second step standardized protection handrail (22) fixed on the step surface of the circular staircase (4) and located at the top of the first step standardized protection handrail (21); and a third step standardized protection handrail (22) fixed on the step surface of the circular staircase (4) and located upward.

5. The lifting type U-shaped staircase edge protection system according to claim 4 is characterized in that: It also includes a horizontal hard protection system (3) welded at the middle position of each layer of the frame, and the horizontal hard protection system (3) includes angle steel (31) welded inside the long side of the frame and a perforated mesh (32) welded and fixed on the surface of the angle steel (321).

6. The lifting type U-shaped staircase edge protection system according to claim 5 is characterized in that: The double-row square tube (13) further comprises a clamping assembly for auxiliary binding, wherein the clamping assembly comprises a positioning sleeve (1301) fixed to the surface of one end of the double-row square tube (13), a fixing block (1302) fixed to the upper and lower ends of the double-row square tube (13), an inner bin (1303) opened inside the fixing block (1302), a movable shaft (1304) rotatably connected to the middle position of the inner cavity of the inner bin (1303), a threaded rod (1306) rotatably connected to the positions on both sides of the inner bin (1303), and clamping blocks (1309) threadedly connected to the outer circumference of the threaded rod (1306) and extending from the outside of the fixing block (1302) on both sides.

7. The lifting type U-shaped staircase edge protection system according to claim 6 is characterized in that: The clamping limit assembly also includes a clamping groove (1310) provided on the surface of the clamping block (1309), a first bevel gear (1305) fixedly sleeved on the outer circumference of the movable shaft (1304), a second bevel gear (1307) fixedly sleeved on the outer circumference of the threaded rod (1306) and extending to the interior of the fixed block (1303), a blocking ring (1308) fixedly sleeved at the middle position of the outer circumference of the threaded rod (1306), and a first bevel gear (1305) fixedly sleeved on the outer circumference of the movable shaft (1304), and a second bevel gear (1307) fixedly sleeved on the outer circumference of the threaded rod (1306) and extending to the interior of the fixed block (1303). The limiting shaft (1311) is at the top of the threaded rod (1306), the clamping block (1309) and the limiting shaft (1311) are slidably connected, the first bevel gears (1305) and the two second bevel gears (1307) at adjacent positions are meshingly connected, and the top plate of one of the movable shafts (1304) located at the upper and lower ends of the double-row square tube (13) passes through the adjacent fixed block (1302) and extends out of the fixed block (1302).

8. A method for using a lifting type U-shaped staircase edge protection system, the method using the lifting type U-shaped staircase edge protection system according to claim 7, characterized in that: The following steps are involved: Step 1: Calculate the slope of the stair tread and the height of each step surface, so that the standardized edge protection system (2) and the supporting device and the adjustable top support device (12) on all sides are adapted to the standard floor structure staircase of the building, and finally connect the standardized edge protection system (2) and the horizontal hard protection system (3) into a whole through welding technology; Step 2: Installing a support device and four-way adjustable top support devices (12) on the four-way adjustable skeleton system (1); Step 3: Use a tower crane to hoist from the floor working surface and place it into the spiral staircase (4); Step 4: Insert the third square tube (125) of the supporting device of each layer into the second square tube (124), and place the other end on the stair tread surface, with the overlap length not less than 200 mm; Step 5: insert and fix the adjustable support screw (122) of each layer into the first square tube (12), and tighten the steel plate (121) against the structural surface by rotating the adjustable support screw (122); Step 6: Use a hanging hammer to adjust the adjustable support adjustment screw (122) to adjust the verticality deviation of the device to meet the specification requirements, and complete the installation; Step seven: The double-row square tubes (13) on the top are used for tower crane binding and fixing. During the tower crane binding and fixing process, the binding ropes are limited by limiting the binding process, and self-checking is performed to lift the device of the present invention to the working layer according to the edge protection requirements as the construction progresses of the main structure.

Images