Scaffold

Abstract

The utility model provides a scaffold. The scaffold comprises a lower supporting part, a supporting part and a horizontal supporting part, and the scaffold can be in a folded state or an unfolded state in the mode that the lower supporting part can be folded or unfolded, the supporting part can ascend and descend, and the horizontal supporting part can be detachably installed. The lower supporting part comprises two fixed frames arranged at an interval and an overturning rod hinged between the two fixed frames, and the overturning rod is provided with a degree of freedom capable of being folded or unfolded; the supporting part is provided with a plurality of telescopic frames which are sequentially connected from bottom to top and form multi-stage lifting freedom degrees, and the lower ends of the telescopic frames are connected with the fixing frame. The scaffold can be folded, the number of detached parts is reduced, and storage and transportation are facilitated; when the scaffold is used, the scaffold can be directly unfolded, and rapid erection is achieved.

Description

Technical Field

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

[0002] Scaffolding is often used at construction sites to facilitate workers' operations. It is mainly set up temporarily at locations where the building height is high and direct construction is not possible, in order to provide support for construction workers and building materials.

[0003] Existing scaffolding, such as patent announcement number CN218714919U, is a conveniently assembled scaffolding, which includes a scaffolding body, which is composed of screw casters and a supporting aluminum frame. The mobile scaffolding is divided into a three-layer construction structure; the first layer: consists of four screw casters, two supporting aluminum frames, two square horizontal pull tubes, two square inclined pull tubes, and four adjustable diagonal braces; the screw casters are assembled under the supporting aluminum frame and in contact with the ground; the supporting aluminum frame is assembled into a whole with the square horizontal pull tube and the cross-assembled square inclined pull tube, and the adjustable diagonal brace is fixed on the outside of the vertical tube of the supporting aluminum frame and supported on the ground. Second floor: It is composed of two supporting aluminum frames, two square inclined tubes, a window pedal, a folding footboard, and a hanging bracket; the supporting aluminum frames and the square inclined tubes are cross-assembled; the window pedal is assembled on the supporting aluminum frames, and the folding footboard is assembled on the surface of the window pedal; the supporting aluminum frames are connected to the first-layer supporting aluminum frames and are connected and fixed to the first-layer adjustable diagonal braces as a whole; the hanging bracket is hung on the horizontal tube of the right supporting aluminum frame. Third floor: It is composed of two guardrail aluminum frames, four square flat-pull tubes, and a square inclined tube assembled into a guardrail frame structure; the guardrail aluminum frames and the square inclined tubes are connected to the second-layer supporting aluminum frames, and the guardrail frame has a safety protection function for construction workers.

[0004] Most existing scaffoldings are bulk structures with many parts. During installation, multiple people are required to cooperate with each other to handle the work, which brings inconvenience to the assembly work. In addition, due to the large number of parts, the workload of disassembly and installation is large, and the requirements for storage and transportation after disassembly are high. Utility Model Content

[0005] The utility model aims to provide a scaffold which can be folded and unfolded, so as to facilitate installation, storage and transportation.

[0006] The technical solution of the utility model is: a scaffolding, comprising a lower support part, a supporting part and a flat support part, wherein the scaffolding can be folded or unfolded in a manner that the lower support part can be lifted and lowered, and the flat support part can be detachably installed to form a folded state or an unfolded state;

[0007] The lower support part includes two fixed frames arranged at intervals and a flip rod hinged between the two fixed frames, and the flip rod is provided with a degree of freedom that can be folded or unfolded; the support part is provided with a plurality of telescopic frames that are sequentially connected from bottom to top and form a multi-level degree of lifting freedom, and the lower end of the telescopic frame is connected to the fixed frame;

[0008] In the folded state, the flip rod is folded to reduce the distance between the two fixed frames, the multiple telescopic frames are lowered, and the flat support portion is placed between the two fixed frames;

[0009] In the unfolded state, the flip rod unfolds to increase the distance between the two fixed frames, the multiple telescopic frames rise, and the flat support portion is clamped on the telescopic frames at corresponding positions.

[0010] Preferably, the fixed frame includes a first rod and a sliding seat vertically arranged at both ends of the first rod, the telescopic frame includes two sliding rods arranged at intervals and a connecting rod connected between the upper ends of the sliding rods, the lower end of the first-level sliding rod located on the lower side is slidably connected to the sliding seat, the sliding rod of the upper level is slidably arranged in the sliding rod of the lower level, the sliding position of the sliding rod is limited by a locking rod, and the flat support portion is clamped on the connecting rod.

[0011] Preferably, the connecting rod is fixed to the top of the fixing frame.

[0012] Preferably, a sliding groove is vertically provided on the sliding seat, and a sliding pin adapted to the sliding groove is provided on the sliding rod.

[0013] Preferably, a plurality of bayonet pins are arranged on the connecting rod, and at least two bayonet holes are provided on the flat support portion, and at least two of the bayonet holes are engaged with the bayonet pins at corresponding positions.

[0014] Preferably, the flip rod includes at least two second rods, and every two of the second rods are hinged via a docking plate, and the second rods at the ends are hinged to the fixing frames at corresponding positions.

[0015] Preferably, the lower support portion further comprises a bracket, and in the unfolded state, the bracket is inserted between two adjacent second rods.

[0016] Preferably, the bracket is C-shaped, which limits the positions of two adjacent second rods to be in a straight line.

[0017] Preferably, the flat support portion includes a support plate and buckles provided at both ends of the support plate, and the buckles are clamped on the telescopic frame.

[0018] Preferably, a plurality of strip grooves are arranged on the support plate.

[0019] Compared with the related art, the beneficial effects of the utility model are:

[0020] 1. The scaffolding of the utility model is designed with a foldable or unfoldable lower support part, a lifting support part and a detachable flat support part. When not in use, the scaffolding can be folded without disassembling too many parts, reducing the number of disassembled parts and facilitating storage and transportation; when in use, the scaffolding can be directly unfolded to achieve rapid erection;

[0021] 2. The folded lower support part has space to accommodate the flat support part, which is convenient for storage and avoids the loss of parts;

[0022] 3. In addition to the clamping connection between the flat support part and the supporting part, the positioning is also limited by the matching of the axial hole of the bayonet pin and the clamping hole, so as to ensure the stability of the installation structure of the flat support part, facilitate the workers and building materials to be placed on the flat support part, and provide effective support and safety for the workers and building materials;

[0023] 4. During the lifting and lowering process of the telescopic frame, the sliding rod is adapted to the sliding groove on the fixed frame to assist the movement, thereby ensuring the smoothness of the lifting and lowering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of the scaffold provided by the utility model in a first viewing angle of an unfolded state and a partial section;

[0025] Figure 2 A structural schematic diagram of a scaffold provided by the utility model in a second viewing angle in an unfolded state;

[0026] Figure 3 is a structural schematic diagram of the lower support portion;

[0027] Figure 4 for Figure 1 A is an enlarged schematic diagram;

[0028] Figure 5 The utility model is a structural schematic diagram of the scaffolding provided by the utility model in a folded state.

[0029] In the accompanying drawings: 1, lower support part; 11, fixed frame; 111, first rod; 112, slide seat; 113, slide groove; 114, ear plate; 115, lock hole; 12, flip rod; 121, second rod; 122, docking plate; 123, jack; 13, bracket; 2, support part; 21, telescopic frame; 211, slide rod; 212, connecting rod; 213, bayonet pin; 214, slide pin; 22, lock rod; 3, flat support part; 31, support plate; 32, buckle; 33, bracket hole; 34, strip groove. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0031] like Figure 1 , Figure 2 As shown, a scaffold provided in this embodiment comprises a lower support part 1, a support part 2 and a flat support part 3. The scaffold is formed in a folded state or an unfolded state in such a manner that the lower support part 1 can be folded or unfolded, the support part 2 can be raised and lowered, and the flat support part 3 can be detachably installed.

[0032] In this embodiment, if Figure 3 As shown, the lower support part 1 includes a fixed frame 11, a flip rod 12 and a bracket 13. The fixed frame 11 includes a first rod 111 and a slide seat 112 vertically arranged at both ends of the first rod 111. The slide seat 112 is a square tube with a through top. Two opposite side walls of the slide seat 112 are provided with vertically extending slide grooves 113, and the other two opposite side walls of the slide seat 112 are provided with horizontally through lock holes 115, and the lock holes 115 are close to the upper end of the slide seat 112. Two fixed frames 11 are arranged at intervals, and the two fixed frames 11 are provided with ear plates 114 on the side facing each other, and the ear plates 114 are arranged close to the lower end of the fixed frame 11.

[0033] The flip rod 12 includes at least two second rods 121, and each of the two second rods 121 is hingedly connected by a docking plate 122. The second rod 121 at the end is hingedly connected to the ear plate 114 of the fixed frame 11 at the corresponding position. In this embodiment, there are two second rods 121. An insertion hole 123 is opened on the outer side wall of each second rod 121. The bracket 13 is C-shaped and is inserted into the two insertion holes 123 at the same time, so that the two adjacent second rods 121 are limited to be in a straight line, so as to realize the unfolded state of the lower support part 1.

[0034] like Figure 1 , Figure 2 As shown, the support portion 2 is provided with a plurality of telescopic frames 21 which are sequentially connected from bottom to top and form multiple levels of lifting freedom, and a locking rod 22 for limiting the position of each level of the telescopic frame 21 .

[0035] The telescopic frame 21 includes two slide bars 211 arranged at intervals and a connecting rod 212 connected between the upper ends of the slide bars 211. The slide bars 211 are square tubes, and the cross-sectional dimensions of the multi-stage slide bars 211 gradually decrease from bottom to top. The lower end of the first-stage slide bar 211 located at the lower side is slidably connected to the slide seat 112, and the slide bar 211 of the upper stage is also provided with a slide groove 113, and the slide bar 211 of the upper stage is slidably arranged in the slide bar 211 of the lower stage. The lower end of each stage of the slide bar 211 is provided with a slide pin 214 adapted to the slide groove 113, and the lower end of each stage of the slide bar 211 is provided with a first through hole, and the upper end of the intermediate stage of the slide bar 211 is provided with a second through hole. The axis of the first through hole and the axis of the slide pin 214 are perpendicular to each other on the same top view plane projection, and the axis of the second through hole is parallel to the axis of the first through hole.

[0036] like Figure 1 , Figure 4 As shown, each level of telescopic frame 21 can be raised and lowered, and during the lifting process, the sliding pin 214 slides in the slide groove 113 to play a guiding role. When the first through hole on the first-level slide bar 211 is aligned with the lock hole 115 on the slide seat 112, the locking rod 22 is inserted. When the second through hole on the first-level slide bar 211 is aligned with the first through hole of the slide bar 211 of the previous level, the locking rod 22 is inserted, and other telescopic frames 21 are unfolded in sequence. The locking rod 22 can be made of standard parts such as latches or screws. There are multiple connecting rods 212, which are respectively fixed to the upper end of the slide seat 112 (not raised and lowered) and fixed to the upper end of the slide bar 211 of each level (raised and lowered with the slide bar 211).

[0037] like Figure 1 As shown, a plurality of latch pins 213 are provided on the upper surface of the connecting rod 212. The flat support portion 3 shown includes a support plate 31, a latch 32, a latch hole 33 and a strip groove 34. The latch 32 is provided at both ends of the support plate 31. One end of the latch 32 is connected to the support plate 31, and the other end of the latch 32 is provided with an n-shaped groove and a latch hole 33 that penetrates the n-shaped groove. The n-shaped groove is latched on the connecting rod 212, and the latch hole 33 is latched with the latch pin 213 at the corresponding position. Figure 1 As shown, two support plates 31 can be installed on one connecting rod 212. In actual use, a suitable number and position of support plates 31 are installed as required.

[0038] The support plate 31 needs to bear the weight of workers and building materials. In addition, in order to reduce its own weight, a plurality of strip grooves 34 are arranged on the support plate 31. Figure 2 As shown, the support plate 31 is concave inside, with reduced thickness and weight without affecting the bearing performance.

[0039] like Figure 5As shown, if folding is required, the flat support part 3 is disassembled. The bracket 13 is disassembled, and the docking plates 122 of the two second rods 121 on the flip rod 12 are pushed inward to rotate, so that the flip rod 12 is folded, and the distance between the two fixed frames 11 is reduced until the ear plates 114 on the two slide seats 112 are close to each other. Then the locking rod 22 is pulled out, and the telescopic frames 21 are lowered at various levels until the following is formed. Figure 5 In the folded state, the plurality of telescopic frames 21 are lowered, and the flat support portion 3 is placed between the two fixed frames 11 .

[0040] like Figure 1 As shown, when it is needed, the two fixed frames 11 are pulled outward to increase the distance between the two fixed frames 11, and the two second rods 121 are gradually straightened. At this time, the flat support part 3 can be taken out from the inside of the fixed frame 11. The two second rods 121 are then kept in a straight line by the clamping frame 13, thereby achieving the locking of the unfolded position of the fixed frame 11. Then, the telescopic frames 21 of each level are raised in sequence, and the locking rods 22 are used to limit the position. Finally, the flat support part 3 is clamped on the connecting rod 212 at the corresponding position.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A scaffold, characterized in that: The scaffold comprises a lower support part (1), a support part (2) and a flat support part (3), wherein the lower support part (1) can be folded or unfolded, the support part (2) can be raised and lowered, and the flat support part (3) can be detachably installed to form a folded state or an unfolded state; The lower support portion (1) comprises two fixed frames (11) arranged at intervals and a flip rod (12) hinged between the two fixed frames (11), the flip rod (12) being provided with a degree of freedom capable of being folded or unfolded; the support portion (2) is provided with a plurality of telescopic frames (21) which are sequentially connected from bottom to top and form a multi-level degree of lifting freedom, the lower end of the telescopic frame (21) being connected to the fixed frame (11); When in the folded state, the flip rod (12) is folded to reduce the distance between the two fixed frames (11), the plurality of telescopic frames (21) are lowered, and the flat support portion (3) is placed between the two fixed frames (11); In the unfolded state, the flip rod (12) unfolds to increase the distance between the two fixed frames (11), the plurality of telescopic frames (21) rise, and the flat support portion (3) is clamped onto the telescopic frames (21) at corresponding positions.

2. The scaffold according to claim 1, characterized in that: The fixed frame (11) comprises a first rod (111) and a sliding seat (112) vertically arranged at both ends of the first rod (111); the telescopic frame (21) comprises two sliding rods (211) arranged at intervals and a connecting rod (212) connected between the upper ends of the sliding rods (211); the lower end of the first-stage sliding rod (211) located at the lower side is slidably connected to the sliding seat (112); the upper-stage sliding rod (211) is slidably arranged in the lower-stage sliding rod (211); the sliding position of the sliding rod (211) is limited by a locking rod (22); and the flat support portion (3) is clamped on the connecting rod (212).

3. The scaffold according to claim 2, characterized in that: The connecting rod (212) is fixed to the top of the fixing frame (11).

4. The scaffold according to claim 2, characterized in that: A sliding groove (113) is vertically provided on the sliding seat (112), and a sliding pin (214) adapted to the sliding groove (113) is provided on the sliding rod (211).

5. The scaffold according to claim 2, characterized in that: A plurality of latching pins (213) are arranged on the connecting rod (212), and at least two latching holes (33) are provided on the flat support portion (3), and at least two of the latching holes (33) are latched with the latching pins (213) at corresponding positions.

6. The scaffold according to claim 1, characterized in that: The flip rod (12) comprises at least two second rods (121), each two of the second rods (121) are hingedly connected via a docking plate (122), and the second rods (121) at the ends are hingedly connected to the fixed frame (11) at the corresponding positions.

7. The scaffold according to claim 6, characterized in that: The lower support portion (1) further comprises a bracket (13); in the unfolded state, the bracket (13) is inserted between two adjacent second rods (121).

8. The scaffold according to claim 7, characterized in that: The bracket (13) is C-shaped and limits the position of two adjacent second rods (121) to be in a straight line.

9. The scaffold according to claim 1, characterized in that: The flat support portion (3) comprises a support plate (31) and buckles (32) provided at two ends of the support plate (31), and the buckles (32) are buckled onto the telescopic frame (21).

10. The scaffold according to claim 9, characterized in that: A plurality of strip-shaped grooves (34) are arranged on the support plate (31).

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