Adjustable scaffold for building construction

Abstract

The utility model discloses an adjustable scaffold for building construction, which belongs to the technical field of scaffolds and comprises a fixed frame, a movable frame is connected in the fixed frame in a sliding manner, the fixed frame consists of two gantries, the two gantries are oppositely arranged, and a tie bar is arranged between the two gantries for anchoring. The door frame comprises first stand columns arranged oppositely and ladder strips connected between the first stand columns, each ladder strip is of a multi-section structure, and the ladder strips used for being matched with the distance between the first stand columns in the same door frame are formed through multi-section splicing. The length of the ladder strips is correspondingly adjusted by increasing or decreasing the lengthening bars, so that the width of the portal of the scaffold is adjusted, the overall width of the scaffold is adjusted, the width of the portal is flexibly adjusted according to actual construction requirements, and the width of the portal can be reduced by decreasing the lengthening bars in different construction scenes; and under the condition that a wider working platform is needed, the width of the portal frame can be expanded by increasing the lengthening crosspiece, so that the scaffold can adapt to diversified construction environments.

Description

Technical Field

[0001] The utility model belongs to the technical field of scaffolds, in particular to an adjustable scaffold for building construction. Background Art

[0002] When the existing scaffolding is not high enough, a new scaffolding needs to be reinstalled on the assembled scaffolding. The whole process is time-consuming, and the installed scaffolding is only connected by the door frame, so its stability is poor.

[0003] In order to solve this problem, Chinese invention patent CN117071865A discloses a scaffold for house construction with adjustable height. In the work auxiliary mechanism, by pushing the work extension plate forward inside the support plate, one end of the work extension plate can be moved to the outside of the support plate, and the work extension plate can be compressed by rotating the compression screw to improve stability. The small size of the work extension plate can help workers work in a small area, thereby increasing the working range of the scaffold.

[0004] In order to extend the working height of the scaffolding in the prior art, a height-adjustable mechanism is usually provided. Although this method realizes the height adjustment of the scaffolding, the scaffolding in the prior art cannot be adjusted in width because the portal frame constituting the scaffolding is a fixed structure, resulting in that the lateral working range of the scaffolding cannot be adjusted according to actual needs and can only be installed. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the problems raised in the above background technology, the utility model adopts the following technical solutions.

[0007] An adjustable scaffold for construction includes a fixed frame, a movable frame is slidably connected inside the fixed frame, the fixed frame is composed of two door frames, the two door frames are arranged opposite to each other, and a tie rod is arranged between the door frames for anchoring.

[0008] The door frame includes first columns arranged opposite to each other and ladder bars connected between the first columns. The ladder bars are of a multi-section structure, and are formed by splicing multiple sections to form ladder bars for adapting to the distance between the first columns in the same door frame. A plurality of assembly holes are equidistantly provided on the opposite side of the first columns in the same door frame, and both ends of the ladder bars are inserted into the assembly holes. The adjustable scaffolding also includes a winding mechanism, and the movable frame is driven by the winding mechanism to move vertically on the fixed frame.

[0009] Preferably, the ladder bar includes a first short section and a second short section, and a receiving hole is provided at one end of the first short section and the second short section connected to the assembly hole, a spring is installed in the receiving hole, a plug-in block is connected to the front end of the spring, the plug-in block is adapted to the assembly hole, a paddle is provided on the lower surface of the plug-in block close to one end of the spring, and a through hole for the paddle to move is provided on the lower surface of the first short section and the second short section, and the paddle extends to the outside of the through hole, a falcon groove is provided at the outer end of the first short section, and a falcon bar is provided at the outer end of the second short section.

[0010] Preferably, the ladder bar includes a first short bar, a second short bar and an extended bar, the extended bar is assembled between the first short bar and the second short bar to adjust the length of the ladder bar, a docking block is provided at the end of the extended bar opposite to the first short bar, and the docking block is adapted to the falcon groove, and a docking groove is provided at the end of the extended bar opposite to the second short bar, and the docking groove is adapted to the falcon bar.

[0011] Preferably, the lower surface of the extension gear is symmetrically provided with support rods, and pin seats are installed at both ends of the support rods. One end of the support rod is rotatably connected to the extension gear by the pin seat, and the other end of the support rod is connected to a mosaic block through the pin seat, and the lower end of the support rod is inserted into the assembly hole through the mosaic block.

[0012] Preferably, locking pins are symmetrically provided on the outer side surface of the first column, and the two ends of the tie rod are respectively sleeved on the locking pins opposite to each other at an oblique angle. The tie rod includes a screw rod, and the two ends of the screw rod are threadedly connected with a screw sleeve rod, and the end of the screw sleeve rod is integrally connected with a pull rod, and the end of the pull rod is provided with a through hole that is sleeved with the locking pin.

[0013] Preferably, the movable frame includes a second column, a sliding bar is installed on the outer side of the second column, a sliding rail is provided on the inner side of the corresponding first column, the second column is slidably connected to the first column through the sliding bar and the sliding rail, and a plug hole is opened on the second column, and a ladder rod is plugged into the plug hole.

[0014] Preferably, screw holes are provided at both ends of the ladder rod, and fastening bolts are threadedly connected to the screw holes, and the diameter of the bolt caps of the fastening bolts is larger than the diameter of the plug-in holes, and a hook panel is hung on the ladder rod.

[0015] Preferably, the movable frame is used together with a matching locking device, the locking device includes a cover shell and a card, the card is rotatably connected in the cover shell, and a torsion spring is provided at the connection between the card and the cover shell, the bottom of the card is a forked structure, the rear end of the forked structure is hooked on the ladder rod, the front end of the forked structure extends beyond the ladder bar, and the upper surface of the part of the forked structure that extends beyond the ladder bar is an arc structure, and the cover shell is installed on the second column.

[0016] Preferably, the winding mechanism includes a winch and a fixed pulley mounted on a fixed frame, the power end of the winch is connected to a wire wheel, the wire wheel is connected to a cable, the cable is wound around the fixed pulley and the end of the cable is connected to a ladder rod at the end of the movable frame.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The utility model can adjust the length of the ladder bars by adding or removing extension bars, thereby adjusting the width of the scaffolding door frame, and further adjusting the width of the scaffolding as a whole. The width of the door frame can be flexibly adjusted according to actual construction needs. In different construction scenarios, the width of the door frame can be reduced by reducing the extension bars; and when a wider working platform is required, the extension bars can be added to expand the width of the door frame, so that the scaffolding can adapt to a variety of construction environments.

[0019] (2) In the utility model, the movable frame is driven by a cable through a winch, and the cable is connected to the ladder rod at the end of the movable frame, so that the movable frame can be accurately adjusted up and down according to the construction height requirements. The operation is relatively simple and can quickly change the scaffolding height to meet the construction requirements of different building heights. The locking device on the movable frame plays an important positioning and fixing role in height adjustment. When the movable frame is driven to rise and fall to a suitable height through the winding mechanism, the locking device can be locked and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the scaffolding in the utility model.

[0021] Figure 2 It is a front view of the scaffold in the utility model.

[0022] Figure 3 It is a side view of the scaffolding in the utility model.

[0023] Figure 4 It is a three-dimensional structural diagram of the fixing frame in the utility model.

[0024] Figure 5 This is a structural diagram of the ladder bar and the first column in the utility model.

[0025] Figure 6 This is a structural diagram of the ladder bars and their supporting components in the utility model.

[0026] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0027] Figure 8 This is a structural diagram of the tensioning reinforcement in the utility model.

[0028] Fig. 9 for Figure 8 Enlarged view of point B in the middle.

[0029] Fig.10 It is an assembly diagram of the movable frame and the winding mechanism in the utility model.

[0030] Fig.11 It is a structural diagram of the door frame of the movable frame in the utility model.

[0031] Fig.12 for Fig.11 Enlarged view of center C.

[0032] Fig.13 It is a three-dimensional structural diagram of the stop lock of the utility model.

[0033] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0034] 200, fixed frame; 201, first column; 2011, slide rail; 2012, lock pin; 2013, assembly hole; 202, ladder bar; 2021, first short gear; 2022, second short gear; 2023, extended gear; 2024, pin seat; 2025, support rod; 2026, fitting block; 2027, spring; 2028, plug-in block; 2029, pick; 203, tie rod; 2031, tie rod; 2032, screw sleeve rod; 2033, screw rod;

[0035] 300, movable frame; 301, second column; 3011, slide bar; 3012, plug hole; 302, ladder rod; 3021, fastening bolt; 303, hook panel; 304, stopper;

[0036] 400. Winding mechanism; 401. Winch; 4011. Cable; 402. Fixed pulley. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0040] Figure 1-3Schematic diagram of the structure of an adjustable scaffold for construction in this embodiment. The adjustable scaffold in this embodiment includes a fixed frame 200, and a movable frame 300 is slidably connected to the fixed frame 200. In this embodiment, the movable frame 300 can move vertically on the fixed frame 200, so as to adjust the height of the entire scaffold. Further, in order to realize the vertical movement of the movable frame 300, the adjustable scaffold in this embodiment also includes a winding mechanism 400, and the end of the winding mechanism 400 is connected to the movable frame 300, and the movable frame 300 moves vertically on the fixed frame 200 through the winding mechanism 400; see Figure 4 In this embodiment, the fixed frame 200 is composed of two door frames, the two door frames are arranged opposite to each other, and a tie rod 203 is arranged between the door frames for anchoring. The door frames include first columns 201 arranged opposite to each other and ladder bars 202 connected between the first columns 201. In this embodiment, the ladder bars 202 are multi-section structures, and ladder bars 202 of different sizes are formed in the form of multiple sections spliced ​​together to adapt to the distance between the first columns 201.

[0041] See also Figure 6 and Figure 7 The ladder bar 202 in this embodiment includes a first short section 2021 and a second short section 2022. The outer end of the first short section 2021 is provided with a falcon groove, and the outer end of the second short section 2022 is provided with a falcon bar. The ladder bar 202 with a shorter length is formed by the mortise and tenon joints of the falcon groove and the falcon bar to adapt to the shorter width of the door frame. Figure 5 In this embodiment, a plurality of assembly holes 2013 are equidistantly provided on a side opposite to the first column 201 in the same door frame, and the two ends of the ladder bar 202 are inserted into the assembly holes 2013 for fixation; when the width of the door frame is large, the ladder bar 202 in this embodiment also includes an extension piece 2023, and the extension piece 2023 is assembled between the first short piece 2021 and the second short piece 2022 to extend the length of the ladder bar 202. In order to ensure a stable connection between the first short piece 2021, the second short piece 2022 and the extension piece 2023, a docking block is provided at one end of the extension piece 2023 opposite to the first short piece 2021, and the docking block is adapted to the falcon groove, and a docking groove is provided at one end of the extension piece 2023 opposite to the second short piece 2022, and the docking groove is adapted to the falcon bar. Through the mortise and tenon connection of the three, a ladder bar 202 with a longer length is formed to adapt to a wider door frame.

[0042] In this embodiment, Figure 6As shown, in order to prevent the extension rail 2023 from being deformed when subjected to force and to ensure the stability of the extension rail 2023, a support rod 2025 is symmetrically arranged on the lower surface of the extension rail 2023, and pin seats 2024 are installed at both ends of the support rod 2025. One end of the support rod 2025 is rotatably connected to the extension rail 2023 by means of the pin seat 2024, and the other end of the support rod 2025 is connected to a fitting block 2026 through the pin seat 2024. The lower end of the support rod 2025 is inserted into the assembly hole 2013 through the fitting block 2026 to achieve assembly with the door frame. In this embodiment, a triangle state is formed between the support rod 2025, the ladder bar 202 and the first column 201, thereby providing support and stabilization for the extension rail 2023, and the support rod 2025 achieves angle adaptation through the pin seat 2024.

[0043] In order to facilitate the rapid disassembly and assembly of the ladder bar 202 and the door frame, Figure 6 as well as Figure 7 As shown, in this embodiment, a receiving hole is provided at one end of the first short piece 2021 and the second short piece 2022 connected to the assembly hole 2013, and a spring 2027 is installed in the receiving hole. A plug-in block 2028 is connected to the front end of the spring 2027. A paddle 2029 is provided on the lower surface of the plug-in block 2028 near the end of the spring 2027, and a through hole for the paddle 2029 to move is provided on the lower surface of the first short piece 2021 and the second short piece 2022, and the paddle 2029 extends to the outside of the through hole. In this embodiment, the first short section 2021 and the second short section 2022 form the ladder bar 202, and the ladder bar 202 is connected to the assembly hole 2013 through the plug-in blocks 2028 at both ends. When disassembly and adjustment are required, the paddle 2029 is pressed to pull the plug-in block 2028 into the accommodating hole, thereby removing the ladder bar 202 from the door frame; when assembly is required, the plug-in block 2028 is reset by the rebound force of the spring 2027, protruding from the two ends of the ladder bar 202, so as to facilitate plugging with the assembly hole 2013.

[0044] like Figure 4 , Figure 8 as well as Fig. 9 As shown, in this embodiment, locking pins 2012 are symmetrically provided on the outer side surface of the first column 201, and the door frames are connected by tie rods 203. The tie rods 203 are sleeved on the locking pins 2012 in an inclined state. The door frames arranged relatively to each other are pulled by the tie rods 203 to ensure the stability of the scaffolding. In order to adapt to the distance between the door frames, the tie rods 203 in this embodiment are length-adjustable structures. The tie rods 203 in this embodiment include screw rods 2033, and both ends of the screw rods 2033 are threadedly connected with screw sleeve rods 2032. The end of the screw sleeve rod 2032 is integrally connected with a pull rod 2031. A through hole is provided at the end of the pull rod 2031 to be sleeved with the locking pin 2012. The screw sleeve rod 2032 is rotated to make the screw sleeve rod 2032 move on the screw rod 2033, thereby controlling the length of the screw rod 2033 extending into the interior of the screw sleeve rod 2032, thereby realizing the length adjustment of the tie rod 203.

[0045] See also Figure 5 as well as Fig.10 In this embodiment, the movable frame 300 includes a second column 301, a slide bar 3011 is installed on the outer side of the second column 301, a slide rail 2011 is provided on the inner side of the first column 201, and the second column 301 is slidably connected to the first column 201 through the slide bar 3011 and the slide rail 2011. Fig.11 as well as Fig.12 As shown, in this embodiment, two second columns 301 on the same side form a door frame structure of the movable frame 300, and a plug-in hole 3012 is formed through the second column 301, and a ladder rod 302 is inserted into the plug-in hole 3012. In this embodiment, the ladder rod 302 is inserted into the plug-in hole 3012. When the width of the fixed frame 200 is adjusted, the ladder rod 302 of different lengths can be replaced as needed so that the movable frame 300 can be adapted to the fixed frame 200.

[0046] For further information, see Fig.12 and Fig.13 In this embodiment, screw holes are provided at both ends of the ladder rod 302, and fastening bolts 3021 are threadedly connected to the screw holes. The diameter of the bolt cap of the fastening bolt 3021 is larger than the diameter of the plug hole 3012. The ladder rod 302 is fixed to the second column 301 by the fastening bolt 3021. Fig.10 As shown, a hook panel 303 is hung on the ladder rod 302 so that the door frames arranged relatively in the movable frame 300 form a whole, so as to ensure the stability of the movable frame 300.

[0047] See also Fig.10 and Fig.13In this embodiment, the movable frame 300 is also used together with a locking device 304. The locking device 304 plays an important role in positioning and fixing in height adjustment. When the movable frame is lifted to the target height, the locking device 304 can be locked and fixed, so that the movable frame 300 and the fixed frame 200 are relatively fixed. In this embodiment, the locking device 304 includes a cover shell and a card. The card is rotatably connected in the cover shell, and a torsion spring is provided at the connection between the card and the cover shell. The bottom of the card is a forked structure, and the rear end of the forked structure is hooked on the ladder bar 302. The front end of the forked structure exceeds the ladder bar 202, and the upper surface of the forked structure that exceeds the ladder bar 202 is The scaffolding has an arc-shaped structure, and the cover shell in this embodiment is installed on the second column 301. When the winding mechanism 400 works to drive the movable frame 300 to rise, the arc-shaped design on the card of the locking device 304 can rotate when it contacts the ladder bar 202 to avoid the ladder bar 202, thereby realizing the rising of the movable frame 300. When the movable frame 300 does not need to rise, the lower surface of the card in the locking device 304 abuts against the ladder bar 202 to limit the movable frame 300 and prevent the movable frame 300 from falling. When the scaffolding is not in use, the movable frame 300 can be slid into the fixed frame 200 by removing the locking device 304 to reduce the volume of the scaffolding.

[0048] See also Figure 1 and Fig.10 The winding mechanism 400 in this embodiment includes a winch 401 and a fixed pulley 402 installed on the fixed frame 200. The power end of the winch 401 is connected to a wire wheel, and the wire wheel is connected to a cable 4011. The cable 4011 is wound around the fixed pulley 402 and the end of the cable 4011 is connected to the ladder rod 302 at the end of the movable frame 300. In this embodiment, the winch 401 retracts and releases the cable 4011, and the movable frame 300 is pulled up and down in the vertical direction on the fixed frame 200 by releasing or winding the cable 4011, thereby adjusting the height of the movable frame 300.

[0049] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. An adjustable scaffold for construction, comprising a fixed frame (200), wherein a movable frame (300) is slidably connected inside the fixed frame (200), wherein the fixed frame (200) is composed of two door frames, the two door frames are arranged opposite to each other, and a tie rod (203) is arranged between the door frames for anchoring, wherein: The door frame comprises first columns (201) arranged opposite to each other and ladder bars (202) connected between the first columns (201); the ladder bars (202) are multi-section structures, and are formed by splicing multiple sections to form ladder bars (202) for adapting to the distance between the first columns (201) in the same door frame; a plurality of assembly holes (2013) are equidistantly provided on one side opposite to the first columns (201) in the same door frame; both ends of the ladder bars (202) are inserted into the assembly holes (2013); the movable frame (300) comprises second columns (301); a slide bar (3011) is installed on the outer side of the second columns (301); a slide rail (2011) is provided on the inner side of the corresponding first columns (201); and the second columns (301) are The first column (201) is slidably connected to the slide rail (2011) through a slide bar (3011); a plug hole (3012) is formed on the second column (301); a ladder bar (302) is plugged into the plug hole (3012); the movable frame (300) is used together with a locking device (304); the locking device (304) comprises a cover and a card; the card is rotatably connected in the cover; a torsion spring is provided at the connection between the card and the cover; the bottom of the card is a forked structure; the rear end of the forked structure is hooked on the ladder bar (302); the front end of the forked structure exceeds the ladder bar (202); and the upper surface of the part of the forked structure that exceeds the ladder bar (202) is an arc-shaped structure; the cover is mounted on the second column (301); The adjustable scaffold further comprises a winding mechanism (400), the winding mechanism (400) comprising a winch (401) and a fixed pulley (402) mounted on the fixed frame (200), the power end of the winch (401) being connected to a wire wheel, the wire wheel being connected to a cable (4011), the cable (4011) being wound around the fixed pulley (402) and the end of the cable (4011) being connected to a ladder rod (302) at the end of the movable frame (300), and the movable frame (300) being driven by the winding mechanism (400) to move vertically on the fixed frame (200).

2. The adjustable scaffold for building construction according to claim 1, characterized in that: The ladder bar (202) comprises a first short section (2021) and a second short section (2022); an accommodating hole is provided at one end of the first short section (2021) and the second short section (2022) connected to the assembly hole (213); a spring (2027) is installed in the accommodating hole; a plug-in block (2028) is connected to the front end of the spring (2027); the plug-in block (2028) is adapted to the assembly hole (2013); a paddle (2029) is provided on the lower surface of the plug-in block (2028) close to the end of the spring (2027); and a through hole for the paddle (2029) to move is provided on the lower surfaces of the first short section (2021) and the second short section (2022); the paddle (2029) extends to the outside of the through hole; a falcon groove is provided at the outer end of the first short section (2021); and a falcon bar is provided at the outer end of the second short section (2022).

3. The adjustable scaffold for building construction according to claim 2, characterized in that: The ladder bar (202) comprises a first short bar (2021), a second short bar (2022) and an extended bar (2023); the extended bar (2023) is assembled between the first short bar (2021) and the second short bar (2022) to adjust the length of the ladder bar (202); a docking block is arranged at one end of the extended bar (2023) opposite to the first short bar (2021), and the docking block is adapted to the falcon groove; a docking groove is arranged at one end of the extended bar (2023) opposite to the second short bar (2022), and the docking groove is adapted to the falcon bar.

4. The adjustable scaffold for building construction according to claim 3, characterized in that: The lower surface of the extension bar (2023) is symmetrically provided with a support rod (2025), and both ends of the support rod (2025) are installed with a pin seat (2024), one end of the support rod (2025) is rotatably connected to the extension bar (2023) by means of the pin seat (2024), and the other end of the support rod (2025) is connected to a fitting block (2026) via the pin seat (2024), and the lower end of the support rod (2025) is inserted into the assembly hole (213) via the fitting block (2026).

5. The adjustable scaffold for construction according to any one of claims 1 to 4, characterized in that: The outer side surface of the first column (201) is symmetrically provided with a locking pin (2012), and the two ends of the tie rod (203) are respectively sleeved on the locking pins (2012) opposite to each other at an oblique angle. The tie rod (203) comprises a screw rod (2033), and the two ends of the screw rod (2033) are threadedly connected to a screw sleeve rod (2032), and the end of the screw sleeve rod (2032) is integrally connected to a pull rod (2031), and the end of the pull rod (2031) is provided with a through hole sleeved with the locking pin (2012).

6. The adjustable scaffold for building construction according to claim 1, characterized in that: Screw holes are provided at both ends of the ladder rod (302), and fastening bolts (3021) are threadedly connected to the screw holes. The diameter of the bolt cap of the fastening bolt (3021) is larger than the diameter of the plug hole (3012), and a hook panel (303) is hung on the ladder rod (302).

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