Portable scaffold for constructional engineering

Abstract

The portable scaffold comprises a first support, a second support, universal wheels and a supporting device, two sets of first connecting rods are symmetrically arranged on the upper surface of the first support, through holes are formed in the circumferential side faces of the two sets of first connecting rods, and clamping grooves are formed in the bottom surface of the first support; limiting holes are formed in the circumferential side face of the inner wall of the clamping groove in a penetrating mode, two hinge bases are arranged on the circumferential side face of the first support, and the first support and the second support are the same in structure. According to the portable scaffold for constructional engineering, hinge rods and second connecting rods are matched, the first support and the second support are unfolded, when the hinge rods and the second connecting rods are unfolded, first notches in one side faces of the first support and the second support can coincide, and at the moment, positioning bolts are inserted into the first notches; when the limiting block of the positioning bolt makes contact with the surface of the first notch, the arc face of the limiting block is squeezed to retract into the limiting groove, and the limiting block can be ejected out by the spring to be limited after being completely inserted.

Description

Technical Field

[0001] The utility model relates to the technical field of scaffolds, in particular to a portable scaffold for construction engineering. Background Art

[0002] Scaffolding is a temporary structure used on construction sites to support and carry workers and materials. It serves as a working platform to ensure smooth construction progress. It is primarily used for exterior wall construction and interior renovations, providing a safe working space for construction workers. Scaffolding is also widely used in various engineering fields, including wind farms, chemical plants, and shipyards.

[0003] In the prior art, during the construction process using scaffolding, in order to construct higher floors of a building, multiple scaffolds are usually connected to each other so that the multiple scaffolds are stacked on each other to reach a predetermined construction height, which is convenient for personnel to construct the building. However, when multiple scaffolds are stacked on each other, the center of gravity of the scaffolds will move upward, which can easily cause the scaffolds to fall, increasing the risk of accidents for construction workers. Therefore, a portable scaffold for construction projects is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a portable scaffold for construction engineering to address the deficiencies of the existing technology, so as to achieve the purpose of being easy to carry and use.

[0005] The main purpose of the utility model is to provide a portable scaffold for construction engineering, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A portable scaffold for construction engineering, comprising a first bracket, a second bracket, a universal wheel and a supporting device, wherein two groups of first connecting rods are symmetrically arranged on the upper surface of the first bracket, and the two groups of first connecting rods are provided with through holes on the peripheral side surfaces, a card slot is provided on the bottom surface of the first bracket, and a limited hole is provided on the peripheral side surface of the inner wall of the card slot, and two groups of hinge seats are provided on the peripheral side surface of the first bracket, the first bracket and the second bracket have the same structure, a connecting assembly is hinged between the first bracket and the second bracket, and the connecting assembly includes an articulated rod and a second connecting rod, a first protrusion is provided on the bottom surface of the articulated rod, and a second protrusion is provided on the bottom surface of the second connecting rod, and the first protrusion and the second protrusion are on one side A circular groove is provided on the surface, and a first notch is provided on one side of the hinge rod and the second connecting rod, a pedal is provided between the first bracket and the second bracket, and the supporting device includes a hollow column, a connecting block is provided on one side of the hollow column, a first mounting block is provided on one side of the connecting block, and the second mounting block is hingedly connected to one side of the first mounting block, a sleeve column is inserted in the hollow column, a fixing plate is provided in the hollow column, a rotating screw is inserted on the upper surface of the fixing plate, a threaded groove is provided in the sleeve column, a supporting foot is provided on the bottom surface of the sleeve column, a first bevel gear is provided on the upper surface of the rotating screw, a rotating rod is inserted on one side of the inner wall of the hollow column, and a second bevel gear is provided at one end of the rotating rod.

[0008] Preferably, the upper surface of the universal wheel is provided with a plug post, and a second slot is opened on the side surface around the plug post. The shape and size of the plug post are adapted to the slot, the shape and size of the second slot are adapted to the limiting hole, the position of the second slot is adapted to the position of the limiting hole, a positioning bolt is inserted into the second slot and the limiting hole, a limiting groove is opened on the side surface around the positioning bolt, a spring is provided on the upper surface inside the limiting groove, a limiting block is provided on the free end of the spring, the shape and size of the second slot and the limiting hole are adapted to the positioning bolt, and the universal wheel is snap-fitted with the limiting hole.

[0009] Preferably, the other end of the hinged rod is hinged to the hinge seat on the peripheral side of the first bracket, and the other end of the second connecting rod is hinged to the hinge seat on the peripheral side of the second bracket. The shape and size of the circular groove and the first notch are adapted to the positioning bolt, and the circular groove and the first notch are snap-fitted with the positioning bolt. The shape and size of the first connecting rod are adapted to the slot, and the slot of the first connecting rod is snap-fitted, and the shape of the through hole is adapted to the size of the limiting hole.

[0010] Preferably, the shape and size of the hollow column are adapted to the sleeve column, the rotating screw is rotatably matched with the fixed plate, the shape and size of the rotating screw thread groove are adapted, the rotating screw is inserted into the thread groove, the rotating screw is threadably matched with the thread groove, the first bevel gear is meshed with the second bevel gear, the rotating rod is rotatably connected to a side surface of the inner wall of the hollow column, the first mounting block and the second mounting block are arc-shaped structures, the first mounting block and the second mounting block are clamped and matched with the first bracket, and the first mounting block and the second mounting block are fixed by screws.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. By matching the hinge rod and the second connecting rod, the first bracket and the second bracket are unfolded. When the hinge rod and the second connecting rod are flattened, the first notches on one side of the first bracket and the second bracket will overlap. At this time, the positioning bolt is inserted into the first notch. When the limit block of the positioning bolt contacts the surface of the first notch, the arc surface of the limit block is squeezed and retracted into the limit groove. When it is fully inserted, the limit block will be pushed out by the spring to limit it. At the same time, the scaffolding can be raised by fitting the first connecting rod into the card slot.

[0013] 2. When the scaffolding body is placed in the working area, the rotating rod is rotated to drive the second bevel gear to rotate. The second bevel gear drives the rotating screw to rotate by engaging with the first bevel gear. The rotating screw cooperates with the thread of the thread groove to adjust the sleeve column up and down so that the supporting foot is naturally in contact with the ground, which is convenient for improving the stability of the scaffolding body when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a portable scaffold for construction engineering according to the present invention;

[0015] Figure 2 This is an exploded view of a portable scaffold for construction engineering according to the present invention;

[0016] Figure 3 This is a right side view of a portable scaffold for construction engineering according to the present invention;

[0017] Figure 4 For this utility model Figure 3 Cross-section of the AA section;

[0018] Figure 5 For this utility model Figure 4 Magnified view of part B.

[0019] In the figure: 1. first bracket; 102. hinge seat; 11. first connecting rod; 111. through hole; 12. second bracket; 13. universal wheel; 131. plug column; 132. second notch; 14. slot; 141. limiting hole; 2. pedal; 3. connecting assembly; 31. hinge rod; 32. second connecting rod; 311. first protrusion; 321. second protrusion; 33. circular groove; 331. first notch; 4. supporting device; 41. connecting block; 401. first mounting block; 402. second mounting block; 42. hollow column; 420. fixing plate; 421. rotating screw; 423. first bevel gear; 43. sleeve column; 431. threaded groove; 432. supporting foot; 44. rotating rod; 441. second bevel gear; 6. positioning bolt; 61. limiting groove; 62. spring; 63. limiting block. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1 - Figure 5As shown, a portable scaffold for construction engineering comprises a first bracket 1, a second bracket 12, a universal wheel 13 and a supporting device 4, two groups of first connecting rods 11 are symmetrically arranged on the upper surface of the first bracket 1, and the two groups of first connecting rods 11 are provided with through holes 111 on the side surfaces thereof, a card slot 14 is provided on the bottom surface of the first bracket 1, and a limiting hole 141 is provided on the side surfaces of the inner wall of the card slot 14, two groups of hinge seats 102 are provided on the side surfaces thereof, the first bracket 1 and the second bracket 12 have the same structure, a connecting assembly 3 is hingedly connected between the first bracket 1 and the second bracket 12, the connecting assembly 3 comprises an articulated rod 31 and a second connecting rod 32, a first protrusion 311 is provided on the bottom surface of the articulated rod 31, a second protrusion 321 is provided on the bottom surface of the second connecting rod 32, a circular groove 33 is provided on one side of the first protrusion 311 and the second protrusion 321, a first notch 331 is provided on one side of the articulated rod 31 and the second connecting rod 32, and a pedal 2 is provided between the first bracket 1 and the second bracket 12.

[0024] Preferably, the supporting device 4 includes a hollow column 42, a connecting block 41 is provided on one side of the hollow column 42, a first mounting block 401 is provided on one side of the connecting block 41, a second mounting block 402 is hingedly connected to one side of the first mounting block 401, a sleeve column 43 is inserted into the hollow column 42, a fixing plate 420 is provided in the hollow column 42, a rotating screw 421 is inserted into the upper surface of the fixing plate 420, a threaded groove 431 is provided in the sleeve column 43, a supporting foot 432 is provided on the bottom surface of the sleeve column 43, a first bevel gear 423 is provided on the upper surface of the rotating screw 421, a rotating rod 44 is inserted into one side of the inner wall of the hollow column 42, and a second bevel gear 441 is provided at one end of the rotating rod 44, the first mounting block 401 and the second mounting block 402 are arc-shaped structures, the first mounting block 401 and the second mounting block 402 are snap-fitted with the first bracket 1, and the first mounting block 401 and the second mounting block 402 are fixed by screws.

[0025] Preferably, a plug post 131 is provided on the upper surface of the universal wheel 13, and a second slot 132 is provided on the side of the plug post 131. The shape and size of the plug post 131 are adapted to the slot 14, and the shape and size of the second slot 132 are adapted to the limit hole 141. The position of the second slot 132 is adapted to the position of the limit hole 141. A positioning bolt 6 is inserted into the second slot 132 and the limit hole 141. A limiting groove 61 is provided on the side of the positioning bolt 6. A spring 62 is provided on the upper surface of the limiting groove 61. A limiting block 63 is provided on the free end of the spring 62. The second slot 132 and the limit hole 141 are shaped The shape and size are adapted to the positioning bolt 6, the universal wheel 13 is snap-fitted with the limiting hole 141, the other end of the articulated rod 31 is hinged to the articulated seat 102 on the side of the first bracket 1, and the other end of the second connecting rod 32 is hinged to the articulated seat 102 on the side of the second bracket 12. The shape and size of the circular groove 33 and the first notch 331 are adapted to the positioning bolt 6, the circular groove 33 and the first notch 331 are snap-fitted with the positioning bolt 6, the shape and size of the first connecting rod 11 are adapted to the slot 14, the slot 14 of the first connecting rod 11 is snap-fitted, and the shape and size of the through hole 111 are adapted to the limiting hole 141.

[0026] Preferably, the shape and size of the hollow column 42 are adapted to the sleeve column 43, the rotating screw 421 is rotatably matched with the fixed plate 420, the shape and size of the rotating screw 421 are adapted to the thread groove 431, the rotating screw 421 is inserted into the thread groove 431, the rotating screw 421 is threadably matched with the thread groove 431, the first bevel gear 423 is meshed with the second bevel gear 441, and the rotating rod 44 is rotatably connected to a side surface of the inner wall of the hollow column 42.

[0027] It should be noted that the present invention is a portable scaffold for construction engineering. By cooperating the hinge rod 31 and the second connecting rod 32, the first bracket 1 and the second bracket 12 are unfolded. When the hinge rod 31 and the second connecting rod 32 are flattened, the first notches 331 on one side of the first bracket 1 and the second bracket 12 will overlap. At this time, the positioning bolt 6 is inserted into the first notch 331. When the limit block 63 of the positioning bolt 6 contacts the surface of the first notch 331, the arc surface of the limit block 63 is squeezed and retracted into the limit groove 61. When it is fully inserted, the first bracket 1 and the second bracket 12 are flattened. The rear limit block 63 will be pushed out by the spring 62 for limiting; at the same time, the scaffold can be raised by snapping together the first connecting rod 11 and the card slot 14. When the scaffold body is placed in the working area, the rotating rod 44 drives the second bevel gear 441 to rotate. The second bevel gear 441 drives the rotating screw 421 to rotate by engaging with the first bevel gear 423. The rotating screw 421 is threadedly engaged with the thread groove 431, so that the sleeve column 43 is adjusted up and down to make the supporting foot 432 naturally contact with the ground, so as to improve the stability of the scaffold body when it is in use.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A portable scaffold for construction engineering, comprising a first bracket (1), a second bracket (12), a universal wheel (13) and a supporting device (4), characterized in that: Two groups of first connecting rods (11) are symmetrically arranged on the upper surface of the first bracket (1), and through holes (111) are provided on the peripheral side surfaces of the two groups of first connecting rods (11). A card slot (14) is provided on the bottom surface of the first bracket (1), and a limiting hole (141) is provided through the peripheral side surface of the inner wall of the card slot (14). Two groups of hinged seats (102) are provided on the peripheral side surface of the first bracket (1). The first bracket (1) and the second bracket (12) have the same structure, and a connecting component is hinged between the first bracket (1) and the second bracket (12). (3), the connecting assembly (3) includes a hinge rod (31) and a second connecting rod (32), the bottom surface of the hinge rod (31) is provided with a first protrusion (311), the bottom surface of the second connecting rod (32) is provided with a second protrusion (321), a circular groove (33) is provided on one side of the first protrusion (311) and the second protrusion (321), a first notch (331) is provided on one side of the hinge rod (31) and the second connecting rod (32), and a pedal (2) is provided between the first bracket (1) and the second bracket (12).

2. A portable scaffold for construction engineering according to claim 1, characterized in that: The supporting device (4) comprises a hollow column (42), a connecting block (41) is provided on one side of the hollow column (42), a first mounting block (401) is provided on one side of the connecting block (41), a second mounting block (402) is hingedly connected to one side of the first mounting block (401), a sleeve column (43) is inserted into the hollow column (42), a fixing plate (420) is provided in the hollow column (42), a rotating screw (421) is inserted into the upper surface of the fixing plate (420), a thread groove (431) is provided in the sleeve column (43), a supporting foot (432) is provided on the bottom surface of the sleeve column (43), a first bevel gear (423) is provided on the upper surface of the rotating screw (421), a rotating rod (44) is inserted into one side of the inner wall of the hollow column (42), and a second bevel gear (441) is provided at one end of the rotating rod (44).

3. A portable scaffold for construction engineering according to claim 1, characterized in that: The upper surface of the universal wheel (13) is provided with an inserting column (131), and a second slot (132) is provided on the side surface of the inserting column (131). The shape and size of the inserting column (131) are adapted to the slot (14), and the shape and size of the second slot (132) are adapted to the limiting hole (141). The position of the second slot (132) is adapted to the position of the limiting hole (141). A positioning bolt (6) is inserted into the second slot (132) and the limiting hole (141). A limiting groove (61) is provided on the side surface of the positioning bolt (6). A spring (62) is provided on the upper surface of the limiting groove (61). A limiting block (63) is provided on the free end of the spring (62). The shape and size of the second slot (132) and the limiting hole (141) are adapted to the positioning bolt (6). The universal wheel (13) is snap-fitted with the limiting hole (141).

4. A portable scaffold for construction engineering according to claim 1, characterized in that: The other end of the hinged rod (31) is hinged to the hinged seat (102) on the peripheral side of the first bracket (1), and the other end of the second connecting rod (32) is hinged to the hinged seat (102) on the peripheral side of the second bracket (12). The shape and size of the circular groove (33) and the first notch (331) are adapted to the positioning bolt (6). The circular groove (33) and the first notch (331) are snap-fitted with the positioning bolt (6). The shape and size of the first connecting rod (11) are adapted to the slot (14). The slot (14) of the first connecting rod (11) is snap-fitted. The shape of the through hole (111) is adapted to the size of the limiting hole (141).

5. A portable scaffold for construction engineering according to claim 2, characterized in that: The shape and size of the hollow column (42) are adapted to the sleeve column (43); the rotating screw (421) is rotationally matched with the fixed plate (420); the shape and size of the rotating screw (421) are adapted to the size of the thread groove (431); the rotating screw (421) is inserted into the thread groove (431); the rotating screw (421) is threadably matched with the thread groove (431); the first bevel gear (423) is meshed with the second bevel gear (441); and the rotating rod (44) is rotationally connected to a side surface of the inner wall of the hollow column (42).

6. A portable scaffold for construction engineering according to claim 2, characterized in that: The first mounting block (401) and the second mounting block (402) are arc-shaped structures, the first mounting block (401) and the second mounting block (402) are snap-fitted with the first bracket (1), and the first mounting block (401) and the second mounting block (402) are fixed by screws.

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