An assemblable retractable stair tread formwork fixing system

Abstract

The utility model discloses a kind of assembled telescopic stair step template fixing systems, every one can be assembled ladder section sub-cylinder device includes steel pipe sub-cylinder and first template fixing assembly, every one can be assembled ladder section female cylinder device includes first steel pipe female cylinder, second template fixing assembly, first can be assembled ladder section side cylinder device includes second steel pipe female cylinder, third template fixing assembly and first ground fixing assembly;Second can be assembled ladder section side cylinder device includes third steel pipe female cylinder, fourth template fixing assembly and second ground fixing assembly;The first end of a steel pipe sub-cylinder is connected with the second end of second steel pipe female cylinder, the second end of steel pipe sub-cylinder is connected with the first end of first steel pipe female cylinder, multiple steel pipe sub-cylinder and multiple first steel pipe female cylinder are alternately connected in turn, the second end of a steel pipe sub-cylinder is connected with the first end of third steel pipe female cylinder.The utility model avoids stair step inclination, improves the beauty of stair step, and easily adjusts step width.

Description

Technical Field

[0001] This utility model relates to the field of stair tread template fixing, and in particular to an assemblable telescopic stair tread template fixing system. Background Technology

[0002] Currently, in the construction of cast-in-place stair treads, traditional methods often use wooden formwork and wooden joists for support. The support and reinforcement often use the method of inserting wooden joists or using wire tie rods. This method will penetrate deep into the formwork of the tread facade. When the concrete is poured and the formwork is removed, holes and dents will be left on the facade, making the treads unsightly and not conducive to turnover. In some cases, the formwork reinforcement is unstable, causing the treads to tilt. The formwork is also inconvenient to turn around and is easily damaged. When the support structure encounters the construction of treads with different widths, the operation is more difficult and it is not easy to adjust the width of the stair treads. Utility Model Content

[0003] The purpose of this utility model is to provide an assemblable telescopic stair tread template fixing system, which avoids stair tread tilting, improves the aesthetics of stair treads, and makes it easy to adjust the tread width.

[0004] This utility model is implemented by the following technical solution: an assemblable telescopic stair tread template fixing system, comprising: Multiple assemblable ladder segment sub-cylinder devices, multiple assemblable ladder segment mother cylinder devices, a first assemblable ladder segment side cylinder device, and a second assemblable ladder segment side cylinder device. Each assemblable stair section sub-tube device includes a steel pipe sub-tube and a first template fixing component; each assemblable stair section main tube device includes a first steel pipe main tube and a second template fixing component; the first assemblable stair section side tube device includes a second steel pipe main tube, a third template fixing component and a first ground fixing component; the second assemblable stair section side tube device includes a third steel pipe main tube, a fourth template fixing component and a second ground fixing component. The first template fixing component is located in the middle of the steel pipe sub-sleeve and is fixedly connected to the steel pipe sub-sleeve. The second template fixing component is located in the middle of the first steel pipe main sleeve and is fixedly connected to the first steel pipe main sleeve. The third template fixing component is located in the middle of the second steel pipe main sleeve. The first ground fixing component is located at the end of the second steel pipe main sleeve away from the steel pipe sub-sleeve, and the third template fixing component and the first ground fixing component are respectively fixedly connected to the second steel pipe main sleeve. The fourth template fixing component is located in the middle of the third steel pipe main sleeve. The second ground fixing component is located at the end of the third steel pipe main sleeve away from the steel pipe sub-sleeve, and the fourth template fixing component and the second ground fixing component are respectively fixedly connected to the third steel pipe main sleeve. The first end of a steel pipe sleeve is fitted and connected to the second end of a second steel pipe mother sleeve, the second end of a steel pipe sleeve is fitted and connected to the first end of a first steel pipe mother sleeve, the second end of a first steel pipe mother sleeve is fitted and connected to the first end of another steel pipe sleeve, multiple steel pipe sleeves and multiple first steel pipe mother sleeves are fitted and connected alternately in sequence, and the second end of a steel pipe sleeve is fitted and connected to the first end of a third steel pipe mother sleeve.

[0005] Furthermore, it also includes: multiple positioning pins, the steel pipe sub-tube is provided with multiple first pin holes along the first direction, the first end and the second end of the first steel pipe mother tube are respectively provided with second pin holes, the second end of the second steel pipe mother tube is provided with a third pin hole, the first end of the third steel pipe mother tube is provided with a fourth pin hole, and the multiple pins are respectively located in the first pin hole, the second pin hole, the third pin hole and the fourth pin hole.

[0006] Furthermore, the diameters of the first pin hole, the second pin hole, the third pin hole, and the fourth pin hole are all greater than or equal to 3cm and less than or equal to 10cm.

[0007] Furthermore, the first template fixing assembly includes a first retractable positioning rod, a first fixing plate, a first fastening screw, and a first step template; the second template fixing assembly includes a second retractable positioning rod, a second fixing plate, a second fastening screw, and a second step template; the third template fixing assembly includes a third retractable positioning rod, a third fixing plate, a third fastening screw, and a third step template; and the fourth template fixing assembly includes a fourth retractable positioning rod, a fourth fixing plate, a fourth fastening screw, and a fourth step template. The first telescopic positioning rod is fixedly connected to the steel pipe sub-cylinder and the first fixed plate respectively; the first fixed plate is fixedly connected to the first step template; the second telescopic positioning rod is fixedly connected to the first steel pipe main cylinder and the second fixed plate respectively; the second fixed plate is fixedly connected to the second step template; the third telescopic positioning rod is fixedly connected to the second steel pipe main cylinder and the third fixed plate respectively, and the third fixed plate is fixedly connected to the third step template; the fourth telescopic positioning rod is fixedly connected to the third steel pipe main cylinder and the fourth fixed plate respectively, and the fourth fixed plate is fixedly connected to the fourth step template; the first, second, third, and fourth fixed plates are each provided with multiple first threaded holes, which are located at the four corners of the first, second, third, and fourth fixed plates respectively; the first, second, third, and fourth fastening screws are threadedly connected to the first threaded holes respectively.

[0008] Furthermore, the first ground fixing component includes a first elevation positioning rod, a first elevation positioning steel pipe sleeve, a first positioning base, a first fastening nut, and a fifth fastening screw; the second ground fixing component includes a second elevation positioning rod, a second elevation positioning steel pipe sleeve, a second positioning base, a second fastening nut, and a sixth fastening screw. The first elevation positioning steel pipe mother cylinder is fitted and connected to the first elevation positioning rod; both the first elevation positioning steel pipe mother cylinder and the second elevation positioning steel pipe mother cylinder are provided with two round holes, the first fastening nut and the second fastening nut are fixedly connected to the round holes, the fifth fastening screw is threadedly connected to the first fastening nut, and the second fastening nut is threadedly connected to the sixth fastening screw; the first positioning base is fixedly connected to the first elevation positioning steel pipe mother cylinder, and the second positioning base is fixedly connected to the second elevation positioning steel pipe mother cylinder.

[0009] Furthermore, the first retractable positioning rod includes a first retractable positioning sub-rod, a second retractable positioning sub-rod, and a seventh fastening screw; the second retractable positioning rod includes a third retractable positioning sub-rod, a fourth retractable positioning sub-rod, and an eighth fastening screw; the third retractable positioning rod includes a fifth retractable positioning sub-rod, a sixth retractable positioning sub-rod, and a ninth fastening screw; the fourth retractable positioning rod includes a seventh retractable positioning sub-rod, an eighth retractable positioning sub-rod, and a tenth fastening screw. The first retractable positioning rod is nested with the second retractable positioning rod, the third retractable positioning rod is nested with the fourth retractable positioning rod, the fifth retractable positioning rod is nested with the sixth retractable positioning rod, and the sixth retractable positioning rod is nested with the seventh retractable positioning rod. The second, fourth, and eighth retractable positioning rods are each provided with a second threaded hole, and the seventh, eighth, ninth, and tenth fastening screws are all threadedly connected to the second threaded holes.

[0010] Furthermore, the diameter of the first steel pipe mother cylinder is larger than the diameter of the steel pipe daughter cylinder, and the diameter of the first steel pipe mother cylinder is equal to the diameter of the third steel pipe mother cylinder and the diameter of the fourth steel pipe mother cylinder, respectively.

[0011] Furthermore, the first ground fixing component also includes an eleventh fastening screw, and the second ground fixing component also includes a twelfth fastening screw; the first positioning base and the second positioning base are provided with a plurality of third threaded holes, which are respectively located on a set of diagonal sides of the first positioning base and the second positioning base, and the eleventh fastening screw and the twelfth fastening screw are respectively threadedly connected to the third threaded holes.

[0012] Furthermore, the dimensions of the first step template, second step template, third step template, and fourth step template along the second direction are equal to the dimensions of the stair tread along the second direction. The heights of the first step template, second step template, third step template, and fourth step template are equal to the heights of the stair treads. The end face of the first step template near the steel pipe sub-tube is flush with the end face of the first fixing plate near the steel pipe sub-tube. The end face of the second step template near the first steel pipe main tube is flush with the end face of the second fixing plate near the first steel pipe main tube. The end face of the third step template near the second steel pipe main tube is flush with the end face of the third fixing plate near the second steel pipe main tube. The end face of the fourth step template near the third steel pipe main tube is flush with the end face of the fourth fixing plate near the third steel pipe main tube.

[0013] Advantages of this utility model: In this invention, a steel pipe sub-cylinder connects the assemblable ladder segment sub-cylinder device and the first assemblable ladder segment side cylinder device, and the distance between the first template fixing component and the second template fixing component is adjusted by moving the steel pipe sub-cylinder. A first steel pipe mother cylinder connects the assemblable ladder segment sub-cylinder device and the assemblable ladder segment mother cylinder device, and the distance between the second template fixing component and the third template fixing component is adjusted by moving the first steel pipe mother cylinder. A third steel pipe mother cylinder connects the second assemblable ladder segment side cylinder device and the assemblable ladder segment sub-cylinder device, and the distance between the second template fixing component and the third template fixing component is adjusted by moving the third steel pipe mother cylinder. The distance between the fourth template fixing component and the first template fixing component is adjusted by the steel pipe sub-tube, the first steel pipe mother tube, the second steel pipe mother tube, and the third steel pipe mother tube to achieve the width adjustment of the stair treads. The stair tread templates are fixed by the first template fixing component, the second template fixing component, the third template fixing component, and the fourth template fixing component, which avoids leaving holes, dents, or misalignment marks on the facade, resulting in unsightly treads. It also avoids the stair treads tilting due to unstable reinforcement. Furthermore, this assemblable telescopic stair tread template fixing system is easy to disassemble and reusable. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural diagram of an assemblable telescopic stair tread template fixing system provided in an embodiment of this utility model; Figure 2 yes Figure 1 A schematic diagram of the structure of the second assemblable ladder-section side tube device. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Figure 1 This is a structural diagram of an assemblable telescopic stair tread template fixing system provided in an embodiment of this utility model. Figure 2 yes Figure 1 See the structural schematic diagram of the second assemblable ladder-section side tube device. Figure 1-2 The assembled telescopic stair tread template fixing system includes: multiple assemblable stair section sub-tube devices 1, multiple assemblable stair section main tube devices 2, a first assemblable stair section side tube device 3, and a second assemblable stair section side tube device 4; each assemblable stair section sub-tube device 1 includes a steel pipe sub-tube 10 and a first template fixing component 11, each assemblable stair section main tube device 2 includes a first steel pipe main tube 20 and a second template fixing component 21, the first assemblable stair section side tube device 3 includes a second steel pipe main tube 30, a third template fixing component 31, and a first ground fixing component 32; the second assemblable stair section side tube device 4 includes a third steel pipe main tube 40, a fourth template fixing component 41, and a second ground fixing component 42; the first template fixing component 11 is located in the middle of the steel pipe sub-tube 10 and is fixedly connected to the steel pipe sub-tube 10, the second template fixing component 21 is located in the middle of the first steel pipe main tube 20 and is fixedly connected to the first steel pipe main tube 20, the second template fixing component 21 is located in the middle of the first steel pipe main tube 20, and the second template fixing component 21 is fixedly connected to the first steel pipe main tube 20, the third assemblable stair section side tube device 3 includes a steel pipe sub-tube 10, and a second template fixing component 21 is located in the middle of the first steel pipe main tube 20. The third template fixing component 31 is located in the middle of the second steel pipe mother cylinder 30, and the first ground fixing component 32 is located at the end of the second steel pipe mother cylinder 30 away from the steel pipe daughter cylinder 10. The third template fixing component 31 and the first ground fixing component 32 are respectively fixedly connected to the second steel pipe mother cylinder 30. The fourth template fixing component 41 is located in the middle of the third steel pipe mother cylinder 40, and the second ground fixing component 42 is located at the end of the third steel pipe mother cylinder 40 away from the steel pipe daughter cylinder 10. The fourth template fixing component 41 and the second ground fixing component 32 are respectively fixedly connected to the second steel pipe mother cylinder 30. Ground fixing components 42 are fixedly connected to the third steel pipe mother cylinder 40 respectively; the first end of a steel pipe sub-cylinder 10 is fitted and connected to the second end of the second steel pipe mother cylinder 30, the second end of the steel pipe sub-cylinder 10 is fitted and connected to the first end of the first steel pipe mother cylinder 20, the second end of the first steel pipe mother cylinder 20 is fitted and connected to the first end of another steel pipe sub-cylinder 10, multiple steel pipe sub-cylinders 10 and multiple first steel pipe mother cylinders 20 are fitted and connected alternately in sequence, and the second end of a steel pipe sub-cylinder 10 is fitted and connected to the first end of the third steel pipe mother cylinder 40.

[0018] The first template fixing component 11 is used to fix the first step template 112, the second template fixing component 21 is used to fix the second step template 212, the third template fixing component 31 is used to fix the third step template 313, and the fourth template fixing component 41 is used to fix the fourth step template 412.

[0019] Specifically, in use, the first assemblable stair section side cylinder device 3 is fixed to the lower resting platform of the staircase to be poured using the first ground fixing component 32, and the second assemblable stair section side cylinder device 4 is fixed to the upper resting platform of the staircase to be poured using the second ground fixing component 42. The assemblable stair section sub-cylinder device 1 is connected to the first assemblable stair section side cylinder device 3 via a steel pipe sub-cylinder 10 (that is, the steel pipe sub-cylinder 10 is connected inside the second steel pipe mother cylinder 30). By moving the steel pipe sub-cylinder 10, the distance between the first template fixing component 11 and the third template fixing component 31 is adjusted, and the position of the steel pipe sub-cylinder 10 is fixed. Then, the assemblable stair section mother cylinder device 2 is connected to the first steel pipe mother cylinder 20. The assemblable stair section sub-tube devices 1 are sleeved together (i.e., the steel pipe sub-tube 10 is sleeved inside the first steel pipe mother tube 20). The first steel pipe mother tube 20 is moved to adjust the distance between the first template fixing component 11 and the second template fixing component 21, and fix the position of the first steel pipe mother tube 20. The assemblable stair section sub-tube devices 1 and the assemblable stair section mother tube devices 2 are alternately sleeved together until an assemblable stair section sub-tube device 1 is sleeved together with the second assemblable stair section side tube device 4 through the third steel pipe mother tube 40. The distance between the first fixed template and the fourth fixed template is adjusted through the third steel pipe mother tube 40, and the third steel pipe mother tube 40 is fixed to fix the second assemblable stair section side tube device 4 through the second ground fixing component 42.

[0020] See Figure 1 Furthermore, based on the above embodiments, it also includes: a plurality of positioning pins; the steel pipe sub-cylinder 10 is provided with a plurality of first pin holes 101 along a first direction; the first end and the second end of the first steel pipe mother cylinder 20 are respectively provided with second pin holes 201; the second end of the second steel pipe mother cylinder 30 is provided with a third pin hole 301; the first end of the third steel pipe mother cylinder 40 is provided with a fourth pin hole 401; and the plurality of positioning pins are respectively located in the first pin hole 101, the second pin hole 201, the third pin hole 301 and the fourth pin hole 401.

[0021] Specifically, the steel pipe sleeve 10 is moved so that the first pin hole 101 on the steel pipe sleeve 10 coincides with the third pin hole 301 on the second steel pipe sleeve 30. A positioning pin is inserted into the overlapping part of the first pin hole 101 and the third pin hole 301, and the distance between the first template fixing assembly 11 and the third template fixing assembly 31 is fixed by the positioning pin. The first steel pipe sleeve 20 is moved so that the second pin hole 201 on the first steel pipe sleeve 20 coincides with the first pin hole 101 on the steel pipe sleeve 10. The positioning pin is inserted into the overlapping part of the first pin hole 101 and the second pin hole 201, thereby fixing the distance between the first template fixing assembly 11 and the second template fixing assembly 21. The third steel pipe mother cylinder 40 is moved so that the fourth pin hole 401 on the third steel pipe mother cylinder 40 coincides with the first pin hole 101 on the steel pipe daughter cylinder 10. The positioning pin is then inserted into the overlapping part of the fourth pin hole 401 and the first pin hole 101, thereby fixing the distance between the first template fixing assembly 11 and the fourth template fixing assembly 41.

[0022] In this utility model, the distance between the first template fixing component 11 and the third template fixing component 31, the distance between the first template fixing component 11 and the second template fixing component 21, and the distance between the first template fixing component 11 and the fourth template fixing component 41 are fixed by the positioning pin, the first pin hole 101, the second pin hole 201, the third pin hole 301 and the fourth pin hole 401, which makes it easy to adjust the width of the stair treads.

[0023] See also Figure 1 Furthermore, based on the above embodiments, the diameters of the first pin hole 101, the second pin hole 201, the third pin hole 301, and the fourth pin hole 401 are all greater than or equal to 3cm and less than or equal to 10cm.

[0024] Specifically, if the diameters of the first pin hole 101, the second pin hole 201, the third pin hole 301, and the fourth pin hole 401 are too small, the first template fixing component 11, the second template fixing component 21, the third template fixing component 31, and the fourth template fixing component 41 will not be securely fitted. If the diameters of the first pin hole 101, the second pin hole 201, the third pin hole 301, and the fourth pin hole 401 are too large, they may damage the steel pipe cylinder, the first steel pipe mother cylinder 20, the second steel pipe mother cylinder 30, the third steel pipe mother cylinder 40, and the fourth steel pipe mother cylinder.

[0025] See also Figure 1Furthermore, based on the above embodiments, the first template fixing assembly 11 includes a first retractable positioning rod 110, a first fixing plate 111, a first fastening screw 113, and a first step template 112; the second template fixing assembly 21 includes a second retractable positioning rod 210, a second fixing plate 211, a second fastening screw 213, and a second step template 212; the third template fixing assembly 31 includes a third retractable positioning rod 310, a third fixing plate 311, a third fastening screw 312, and a third step template 313; the fourth template fixing assembly 41 includes a fourth retractable positioning rod 410, a fourth fixing plate 411, a fourth fastening screw 413, and a fourth step template 412; the first retractable positioning rod 110 is fixedly connected to the steel pipe sub-cylinder 10 and the first fixing plate 111 respectively; the first fixing plate 111 is fixedly connected to the first step template 112; the second retractable positioning rod 210 is fixedly connected to the first steel pipe main cylinder 20 and the second fixing plate 112 respectively. Plate 211 is fixedly connected; the second fixed plate 211 is fixedly connected to the second step template 212; the third telescopic positioning rod 310 is fixedly connected to the second steel pipe mother cylinder 30 and the third fixed plate 311 respectively, and the third fixed plate 311 is fixedly connected to the third step template 313; the fourth telescopic positioning rod 410 is fixedly connected to the third steel pipe mother cylinder 40 and the fourth fixed plate 411 respectively, and the fourth fixed plate 411 is fixedly connected to the fourth step template 412; the first fixed plate 111, the second fixed plate 211, the third fixed plate 311 and the fourth fixed plate 411 are all provided with a plurality of first threaded holes 4110, and the plurality of first threaded holes 4110 are respectively located at the four corners of the first fixed plate 111, the second fixed plate 211, the third fixed plate 311 and the fourth fixed plate 411; the first fastening screw 113, the second fastening screw 213, the third fastening screw 312 and the fourth fastening screw 413 are respectively threadedly connected to the first threaded holes 4110.

[0026] The first telescopic positioning rod 110 is used to adjust the height of the first step template 112, the second telescopic positioning rod 210 is used to adjust the height of the second step template 212, the third telescopic positioning rod 310 is used to adjust the height of the third step template 313, and the fourth telescopic positioning rod is used to adjust the height of the fourth step template 412; the first fastening screw 113 is used to fasten the first step template 112 and the first fixing plate 111, the second fastening screw 213 is used to fasten the second step template 212 and the second fixing plate 211, the third fastening screw 312 is used to fasten the third step template 313 and the third fixing plate 311, and the fourth fastening screw 413 is used to fasten the fourth step template 412 and the fourth fixing plate 411.

[0027] Specifically, when the first assemblable stair section side tube device 3 is fixed at the lower resting platform of the staircase to be poured, and the second assemblable stair section side tube device 4 is fixed at the upper resting platform of the staircase to be poured, the height of the first telescopic positioning rod 110 is adjusted so that the first step template 112 contacts the ground; the height of the second telescopic positioning rod 210 is adjusted so that the second step template 212 contacts the ground; the height of the third telescopic positioning rod 310 is adjusted so that the third step template 313 contacts the ground; and the height of the fourth telescopic positioning rod 410 is adjusted so that the fourth step template 412 contacts the ground.

[0028] See also Figure 1 Furthermore, based on the above embodiments, the first ground fixing component 32 includes a first elevation positioning rod 320, a first elevation positioning steel pipe sleeve 321, a first positioning base 322, a first fastening nut 323, and a fifth fastening screw 324; the second ground fixing component 42 includes a second elevation positioning rod 420, a second elevation positioning steel pipe sleeve 421, a second positioning base 422, a second fastening nut 423, and a sixth fastening screw 424. The first elevation positioning steel pipe mother cylinder 321 is fitted and connected to the first elevation positioning rod 320; the first elevation positioning steel pipe mother cylinder 321 and the second elevation positioning steel pipe mother cylinder 421 are each provided with two round holes, the first fastening nut 323 and the second fastening nut 423 are both fixedly connected to the round holes, the fifth fastening screw 324 is threadedly connected to the first fastening nut 323, and the second fastening nut 423 is threadedly connected to the sixth fastening screw 424; the first positioning base 322 is fixedly connected to the first elevation positioning steel pipe mother cylinder 321, and the second positioning base 422 is fixedly connected to the second elevation positioning steel pipe mother cylinder 421.

[0029] Specifically, the first elevation positioning rod 320 is moved to adjust the height of the first ground fixing component 32. When the first ground fixing component 32 reaches a suitable height, the fifth fastening screw 324 is rotated to fasten the first elevation positioning rod 320 to the first elevation positioning steel pipe sleeve 321. The second elevation positioning rod 420 is moved to adjust the height of the second ground fixing component 42. When the second ground fixing component 42 reaches a suitable height, the sixth fastening screw 424 is rotated to fasten the second elevation positioning rod 420 to the second elevation positioning steel pipe sleeve 421.

[0030] See also Figure 1Furthermore, based on the above embodiments, the first retractable positioning rod 110 includes a first retractable positioning sub-rod 1101, a second retractable positioning sub-rod 1102, and a seventh fastening screw 1103; the second retractable positioning rod 210 includes a third retractable positioning sub-rod 2101, a fourth retractable positioning sub-rod 2102, and an eighth fastening screw 2103; the third retractable positioning rod 310 includes a fifth retractable positioning sub-rod 3101, a sixth retractable positioning sub-rod 3102, and a ninth fastening screw 3103; the fourth retractable positioning rod 410 includes a seventh retractable positioning sub-rod 4101, an eighth retractable positioning sub-rod 4102, and a tenth fastening screw 4103; the first retractable... Positioning rod 1101 is fitted into the second retractable positioning rod 1102; the third retractable positioning rod 2101 is fitted into the fourth retractable positioning rod 2102; the fifth retractable positioning rod 3101 is fitted into the sixth retractable positioning rod 3102; and the sixth retractable positioning rod 3102 is fitted into the seventh retractable positioning rod 4101. The second retractable positioning rod 1102, the fourth retractable positioning rod 2102, and the eighth retractable positioning rod 4102 are all provided with second threaded holes. The seventh fastening screw 1103, the eighth fastening screw 2103, the ninth fastening screw 3103, and the tenth fastening screw 4103 are all threaded into the second threaded holes.

[0031] Specifically, when the first retractable positioning rod 110 extends or retracts, the first retractable positioning sub-rod 1101 is moved. When the first retractable positioning sub-rod 1101 reaches a suitable distance, the seventh fastening screw 1103 is rotated to fix the first retractable positioning sub-rod 1101 and the second retractable positioning sub-rod 1102 in place. Similarly, when the second retractable positioning rod 210 extends or retracts, the third retractable positioning sub-rod 2101 is moved. When the third retractable positioning sub-rod 2101 reaches a suitable distance, the eighth fastening screw 2103 is rotated to fix the third retractable positioning sub-rod 2101 and the fourth retractable positioning rod 2102 in place. 102 is fixed; when the third retractable positioning rod 310 extends or retracts, the fifth retractable positioning sub-rod 3101 is moved. When the fifth retractable positioning sub-rod 3101 reaches a suitable distance, the ninth fastening screw 3103 is rotated to fix the fifth retractable positioning sub-rod 3101 and the sixth retractable positioning sub-rod 3102; when the fourth retractable positioning rod extends or retracts, the seventh retractable positioning sub-rod 4101 is moved. When the seventh retractable positioning sub-rod 4101 reaches a suitable distance, the tenth fastening screw 4103 is rotated to fix the seventh retractable positioning sub-rod 4101 and the eighth retractable positioning sub-rod 4102.

[0032] See also Figure 1Furthermore, based on the above embodiments, the diameter of the first steel pipe mother cylinder 20 is larger than the diameter of the steel pipe daughter cylinder 10, and the diameter of the first steel pipe mother cylinder 20 is equal to the diameter of the third steel pipe mother cylinder 40 and the diameter of the second steel pipe mother cylinder 30.

[0033] In this utility model, the arrangement allows the first steel pipe mother cylinder 20, the third steel pipe mother cylinder 40, and the second steel pipe mother cylinder 30 to move on the steel pipe daughter cylinder 10, thereby realizing the adjustment of the distance between the first step template 112, the second step template 212, the third step template 313, and the fourth step template 412.

[0034] See also Figure 1 Furthermore, based on the above embodiments, the first ground fixing component 32 further includes an eleventh fastening screw 3220, and the second ground fixing component 42 further includes a twelfth fastening screw 4220; the first positioning base 322 and the second positioning base 422 are provided with a plurality of third threaded holes 4221, which are respectively located on a set of diagonal sides of the first positioning base 322 and the second positioning base 422, and the eleventh fastening screw 3220 and the twelfth fastening screw 4220 are respectively threadedly connected to the third threaded holes 4221.

[0035] Specifically, when the first ground fixing component 32 is fixed to the ground, the eleventh fastening screw 3220 is rotated to fix the first positioning base 322 to the ground. When the second ground fixing component 42 is fixed to the ground, the twelfth fastening screw 4220 is rotated to fix the second positioning base 422 to the ground.

[0036] See also Figure 1 Furthermore, based on the above embodiments, the dimensions of the first step template 112, the second step template 212, the third step template 313, and the fourth step template 412 along the second direction are equal to the dimensions of the stair treads along the second direction. The heights of the first step template 112, the second step template 212, the third step template 313, and the fourth step template 412 are equal to the heights of the stair treads. The end face of the first step template 112 near the steel pipe cylinder 10 is connected to the first fixed... The end face of the fixed plate 111 near the steel pipe sub-cylinder 10 is flush with the end face of the second step template 212 near the first steel pipe mother cylinder 20 and the end face of the second fixed plate 211 near the first steel pipe mother cylinder 20 are flush with the end face of the third step template 313 near the second steel pipe mother cylinder 30 and the end face of the third fixed plate 311 near the second steel pipe mother cylinder 30 are flush with the end face of the fourth step template 412 near the third steel pipe mother cylinder 40 and the end face of the fourth fixed plate 411 near the third steel pipe mother cylinder 40 are flush with the end face of the fourth fixed plate 411 near the third steel pipe mother cylinder 40.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An assemblable telescopic stair tread template fixing system, characterized in that, include: Multiple assemblable ladder segment sub-cylinder devices, multiple assemblable ladder segment mother cylinder devices, a first assemblable ladder segment side cylinder device, and a second assemblable ladder segment side cylinder device. Each of the assembled stair section sub-tube devices includes a steel pipe sub-tube and a first template fixing component; each of the assembled stair section main tube devices includes a first steel pipe main tube and a second template fixing component; the first assembled stair section side tube device includes a second steel pipe main tube, a third template fixing component, and a first ground fixing component; the second assembled stair section side tube device includes a third steel pipe main tube, a fourth template fixing component, and a second ground fixing component. The first template fixing component is located at the middle of the steel pipe sub-cylinder and is fixedly connected to the steel pipe sub-cylinder. The second template fixing component is located at the middle of the first steel pipe main cylinder and is fixedly connected to the first steel pipe main cylinder. The third template fixing component is located at the middle of the second steel pipe main cylinder. The first ground fixing component is located at the end of the second steel pipe main cylinder away from the steel pipe sub-cylinder, and the third template fixing component and the first ground fixing component are respectively fixedly connected to the second steel pipe main cylinder. The fourth template fixing component is located at the middle of the third steel pipe main cylinder. The second ground fixing component is located at the end of the third steel pipe main cylinder away from the steel pipe sub-cylinder, and the fourth template fixing component and the second ground fixing component are respectively fixedly connected to the third steel pipe main cylinder. The first end of one of the steel pipe sub-cylinders is fitted and connected to the second end of the second steel pipe mother cylinder, the second end of the steel pipe sub-cylinder is fitted and connected to the first end of the first steel pipe mother cylinder, the second end of the first steel pipe mother cylinder is fitted and connected to the first end of another steel pipe sub-cylinder, and multiple steel pipe sub-cylinders and multiple first steel pipe mother cylinders are sequentially and alternately fitted and connected, and the second end of one of the steel pipe sub-cylinders is fitted and connected to the first end of the third steel pipe mother cylinder.

2. The assemblable telescopic stair tread template fixing system according to claim 1, characterized in that, Also includes: Multiple positioning pins are provided. The steel pipe sub-tube is provided with multiple first pin holes along a first direction. The first end and the second end of the first steel pipe mother tube are respectively provided with second pin holes. The second end of the second steel pipe mother tube is provided with a third pin hole. The first end of the third steel pipe mother tube is provided with a fourth pin hole. The multiple pins are respectively located in the first pin hole, the second pin hole, the third pin hole and the fourth pin hole.

3. The assemblable telescopic stair tread template fixing system according to claim 2, characterized in that, The diameters of the first pin hole, the second pin hole, the third pin hole, and the fourth pin hole are all greater than or equal to 3cm and less than or equal to 10cm.

4. The assemblable telescopic stair tread template fixing system according to claim 1, characterized in that, The first template fixing assembly includes a first retractable positioning rod, a first fixing plate, a first fastening screw, and a first step template; the second template fixing assembly includes a second retractable positioning rod, a second fixing plate, a second fastening screw, and a second step template; the third template fixing assembly includes a third retractable positioning rod, a third fixing plate, a third fastening screw, and a third step template; and the fourth template fixing assembly includes a fourth retractable positioning rod, a fourth fixing plate, a fourth fastening screw, and a fourth step template. The first telescopic positioning rod is fixedly connected to the steel pipe sub-cylinder and the first fixing plate respectively; the first fixing plate is fixedly connected to the first step template; the second telescopic positioning rod is fixedly connected to the first steel pipe main cylinder and the second fixing plate respectively; the second fixing plate is fixedly connected to the second step template; the third telescopic positioning rod is fixedly connected to the second steel pipe main cylinder and the third fixing plate respectively, and the third fixing plate is fixedly connected to the third step template; the fourth telescopic positioning rod is fixedly connected to the third steel pipe main cylinder and the fourth fixing plate respectively, and the fourth fixing plate is fixedly connected to the fourth step template; the first fixing plate, the second fixing plate, the third fixing plate and the fourth fixing plate are each provided with a plurality of first threaded holes, and the plurality of first threaded holes are respectively located at the four corners of the first fixing plate, the second fixing plate, the third fixing plate and the fourth fixing plate; the first fastening screw, the second fastening screw, the third fastening screw and the fourth fastening screw are respectively threadedly connected to the first threaded holes.

5. The assemblable telescopic stair tread template fixing system according to claim 1, characterized in that, The first ground fixing component includes a first elevation positioning rod, a first elevation positioning steel pipe sleeve, a first positioning base, a first fastening nut, and a fifth fastening screw; the second ground fixing component includes a second elevation positioning rod, a second elevation positioning steel pipe sleeve, a second positioning base, a second fastening nut, and a sixth fastening screw. The first elevation positioning steel pipe mother cylinder is fitted and connected to the first elevation positioning rod; both the first and second elevation positioning steel pipe mother cylinders are provided with two round holes, and the first and second fastening nuts are fixedly connected to the round holes; the fifth fastening screw is threadedly connected to the first fastening nut, and the second fastening nut is threadedly connected to the sixth fastening screw; the first positioning base is fixedly connected to the first elevation positioning steel pipe mother cylinder, and the second positioning base is fixedly connected to the second elevation positioning steel pipe mother cylinder.

6. The assemblable telescopic stair tread template fixing system according to claim 4, characterized in that, The first retractable positioning rod includes a first retractable positioning sub-rod, a second retractable positioning sub-rod, and a seventh fastening screw; the second retractable positioning rod includes a third retractable positioning sub-rod, a fourth retractable positioning sub-rod, and an eighth fastening screw; the third retractable positioning rod includes a fifth retractable positioning sub-rod, a sixth retractable positioning sub-rod, and a ninth fastening screw; the fourth retractable positioning rod includes a seventh retractable positioning sub-rod, an eighth retractable positioning sub-rod, and a tenth fastening screw. The first retractable positioning rod is sleeved with the second retractable positioning rod, the third retractable positioning rod is sleeved with the fourth retractable positioning rod, the fifth retractable positioning rod is sleeved with the sixth retractable positioning rod, and the sixth retractable positioning rod is sleeved with the seventh retractable positioning rod; the second, fourth, and eighth retractable positioning rods are each provided with a second threaded hole, and the seventh, eighth, ninth, and tenth fastening screws are all threadedly connected to the second threaded holes.

7. The assemblable telescopic stair tread template fixing system according to claim 1, characterized in that, The diameter of the first steel pipe mother cylinder is larger than the diameter of the steel pipe daughter cylinder, and the diameter of the first steel pipe mother cylinder is equal to the diameter of the third steel pipe mother cylinder and the diameter of the fourth steel pipe mother cylinder, respectively.

8. The assemblable telescopic stair tread template fixing system according to claim 5, characterized in that, The first ground fixing component further includes an eleventh fastening screw, and the second ground fixing component further includes a twelfth fastening screw; the first positioning base and the second positioning base are provided with a plurality of third threaded holes, the third threaded holes being located on a set of diagonal sides of the first positioning base and the second positioning base respectively, and the eleventh fastening screw and the twelfth fastening screw being threadedly connected to the third threaded holes respectively.

9. The assemblable telescopic stair tread template fixing system according to claim 4, characterized in that, The dimensions of the first, second, third, and fourth step templates along the second direction are equal to the dimensions of the stair treads along the second direction. The heights of the first, second, third, and fourth step templates are equal to the heights of the stair treads. The end face of the first step template near the steel pipe sub-tube is flush with the end face of the first fixing plate near the steel pipe sub-tube. The end face of the second step template near the first steel pipe main tube is flush with the end face of the second fixing plate near the first steel pipe main tube. The end face of the third step template near the second steel pipe main tube is flush with the end face of the third fixing plate near the second steel pipe main tube. The end face of the fourth step template near the third steel pipe main tube is flush with the end face of the fourth fixing plate near the third steel pipe main tube.

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