Quick-mounting scaffold and gravity self-locking connecting piece

Abstract

This utility model relates to a quick-assembly scaffold and a gravity self-locking connector. The gravity self-locking connector has a fixed end at one end and a self-locking end at the other. The self-locking end is equipped with a self-locking component that flips downwards under gravity. The upper end of the self-locking component is rotatably hinged to the column via a shaft. Under external force, the self-locking component can rotate to be flush with the column. A limit hole is provided in the middle of the self-locking component, and a limit pin is provided on the column corresponding to the limit hole to limit the maximum downward tilt of the self-locking component. In this utility model, the scaffolding column is formed by connecting uprights vertically via elastic buckle assemblies. The installation and disassembly of the uprights are achieved by controlling the elastic buckles, which is very convenient. The uprights of the scaffolding have gravity self-locking connectors, whose self-locking components naturally flip or droop downwards under gravity, forming an obstruction and limiting the guardrails fitted onto the column, preventing the guardrails from slipping off, thereby achieving quick installation and disassembly of the guardrails.

Description

Technical Field

[0001] This utility model belongs to the field of scaffolding technology, specifically relating to a quick-assembly scaffolding and a gravity self-locking connector. Background Technology

[0002] Scaffolding is an essential auxiliary equipment in construction, decoration, and other work processes, providing a stable working platform for construction workers. Compared to large scaffolding on construction sites, smaller scaffolding is more suitable for home use or small-scale construction projects. Existing scaffolding, considering transportation issues, generally uses steel pipes with couplers or fasteners for assembly and disassembly. Installation and disassembly are cumbersome, require additional tools, and are inefficient. Utility Model Content

[0003] This utility model mainly addresses the problem of improving the efficiency of scaffolding assembly and disassembly by inventing a gravity self-locking connector for scaffolding. The self-locking connector naturally flips or droops under the action of gravity, forming a barrier to limit the guardrail sleeved on the column and prevent the guardrail from slipping off.

[0004] The purpose of this utility model is achieved through the following technical solution: a gravity self-locking connector, characterized in that it includes a column of connector, one end of the column is a fixed end and the other end is a self-locking end, the self-locking end is provided with a self-locking component that flips downward under the action of gravity, the upper end of the self-locking component is rotatably hinged to the column through a shaft, the self-locking component can rotate to be flush with the column under the action of external force, the middle part of the self-locking component is provided with an arc-shaped limiting hole, and at the same time, the column is provided with a limiting pin at the part corresponding to the limiting hole to limit the maximum downward tilt of the self-locking component.

[0005] Preferably, a hollow section is provided in the column body from the self-locking end to the middle of the column body, and the through direction of the hollow section is perpendicular to the axis of the column body; the self-locking component is located in the hollow section.

[0006] Preferably, the arc-shaped limiting hole is located in the middle of the self-locking component and is perpendicular to the central axis of the self-locking component; the maximum tilt range of the self-locking component is 15 degrees to 90 degrees.

[0007] The aforementioned gravity-locking connector is primarily used for the rapid installation of guardrails. The guardrail's end is fitted onto the column of the gravity-locking connector via a socket, and then slid inwards along the column. The tilted, downward-folding self-locking component, driven by the guardrail, gradually flips upwards until it is flush with the column. Once the guardrail has slid past the self-locking component, it naturally droops back down to form a barrier, completing the installation. Conversely, for disassembly, the tilted self-locking component is flipped until it is flush with the column, and the end of the guardrail is detached from the column. Both installation and disassembly are very quick and convenient.

[0008] This invention addresses the issue of improving the efficiency of scaffolding assembly and disassembly by proposing a quick-assembly scaffolding. The scaffolding columns are formed by connecting uprights vertically via elastic buckle components. The installation and disassembly of the uprights are achieved by controlling the elastic buckles, which is very convenient. The uprights of the scaffolding have gravity self-locking connectors. Under the action of gravity, the self-locking components of the gravity self-locking connectors naturally tilt or droop downwards, forming a barrier and limiting the guardrails fitted onto the column to prevent them from slipping off, thereby achieving rapid installation and disassembly of the guardrails.

[0009] The purpose of this utility model is achieved through the following technical solution: a quick-assembly scaffold, comprising a frame consisting of several vertical columns and several horizontal bars, several platform plates horizontally connected between the horizontal bars, and wheels set at the lower end of the columns, characterized in that the columns are provided with gravity self-locking connectors, and guardrails are connected between the gravity self-locking connectors on adjacent columns, and both ends of the guardrails are provided with socket holes for fitting onto the gravity self-locking connectors.

[0010] The gravity self-locking connectors on the uprights can be installed at different heights and in different orientations. The gravity self-locking connectors can be used to quickly connect the guardrails. At the same time, by connecting the guardrails, the width of the scaffolding can be expanded laterally. That is, multiple independent small scaffoldings can be spliced ​​laterally according to actual work needs.

[0011] Preferably, each column consists of at least two vertically connected poles, which are connected by an elastic buckle assembly. The elastic buckle assembly includes a connecting rod, with a set of through holes at both the upper and lower parts. A V-shaped elastic element is provided on the inner side of the upper part of the connecting rod, with elastic buckles at both ends, passing through the through holes in the upper part of the connecting rod. A V-shaped elastic element is also provided on the inner side of the lower part of the connecting rod, with elastic buckles at both ends, passing through the through holes in the lower part of the connecting rod. The lower end of the upper pole is fitted onto the upper part of the connecting rod, and the upper pole has a second limiting hole at the location of the elastic buckle. The upper end of the lower pole is fitted onto the lower part of the connecting rod, and the lower pole has a second limiting hole at the location of the elastic buckle.

[0012] When installing the upright, first press the elastic buckle to connect the upright and the connecting rod; when disassembling the upright, simply press the elastic buckle to release the restraint between the connecting rod and the upright, allowing the upright and the connecting rod to separate.

[0013] Preferably, the upper upright has a downwardly extending extension fixed at its lower end, and a U-shaped component is fixed at the lower end of the extension. The U-shaped component can be looped around the lower upright. A set of through holes are provided on the U-shaped component, and an L-shaped gravity self-locking pin is connected in the through holes. The insertion end of the L-shaped gravity self-locking pin is set as the gravity self-locking connector.

[0014] When the L-shaped gravity self-locking pin is inserted into the above-mentioned through hole, the self-locking part of the insertion end, which was originally drooping, is flipped upward to the horizontal after contacting the through hole. After passing through the two through holes, the self-locking part of the insertion end naturally droops down again to form a limit.

[0015] Preferably, both ends of the platform plate are provided with arc-shaped clips, which are correspondingly engaged with the crossbars; several step bars are provided between the upper and lower crossbars to facilitate stepping and climbing.

[0016] Preferably, the upper end of the uppermost upright is provided with the gravity self-locking connector, and the column of the gravity self-locking connector is vertically fixed to the upper end of the upright.

[0017] Preferably, the gravity self-locking connector installed at the upper, middle or lower part of the upright has its column body perpendicular to the upright.

[0018] Preferably, a cross guardrail is connected between the bottommost uprights. The cross guardrail is composed of two guardrails connected in a cross manner. The upper end of each guardrail is connected to a gravity self-locking connector on the upper part of one upright through a socket hole, and the lower end is connected to a gravity self-locking connector on the lower part of the other upright through a socket hole.

[0019] In summary, compared with the prior art, this utility model has the following beneficial effects: The gravity self-locking connector of this utility model naturally droops and tilts under the action of gravity, forming a limit on the guardrail sleeved on the column. The guardrail can be quickly installed or disassembled without any tools. This utility model uses the gravity self-locking connector to connect the guardrail, which can expand the width of the scaffold laterally. That is, according to the actual operation needs, multiple independent small scaffolds can be spliced ​​laterally.

[0020] This utility model relates to a quick-assembly scaffold, in which the uprights are formed by connecting two or more uprights together with elastic buckle components. The installation and disassembly of the uprights are achieved by controlling the elastic buckles, which is very convenient. The height of the scaffold can be adjusted by the number of uprights spliced ​​according to the actual operation requirements. That is, multiple small scaffolds can be spliced ​​in the vertical direction by connecting the upper and lower uprights.

[0021] The upright of this utility model has several gravity self-locking connectors facing different directions, which are used to quickly connect guardrails in different positions. The self-locking parts of the gravity self-locking connectors naturally flip down or droop under the action of gravity, forming a barrier to limit the guardrails sleeved on the column and prevent the guardrails from slipping off, thereby realizing the quick installation and disassembly of the guardrails.

[0022] When the upper and lower uprights of this invention are connected, an extension piece and a U-shaped piece are added to further improve the firmness of the connection between the upper and lower uprights; the U-shaped piece adopts an L-shaped gravity self-locking pin, which can quickly realize installation and disassembly; the platform plate of this invention is engaged with the crossbar by the arc-shaped clips at both ends, which can be quickly assembled and disassembled. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of a gravity self-locking connector of a utility model; Figure 2 This is a cross-sectional view of the gravity self-locking connector of this utility model in the locked state; Figure 3 This is a cross-sectional view of the gravity self-locking connector of this utility model in the unlocked state; Figure 4 This is a structural schematic diagram of the quick-assembly scaffolding of this utility model; Figure 5 This is an exploded view of the extension and U-shaped parts at the joint of the upper and lower uprights of this utility model; Figure 6 This is a schematic diagram of the horizontal splicing of the scaffolding according to this utility model; Figure 7 This is a schematic diagram of the vertical splicing of the scaffolding according to this utility model.

[0024] The following are the labels in the diagram: 1. Column; 10. Wheel; 11. Upright post; 12. Second limiting hole; 13. Extension piece; 14. U-shaped piece; 15. Self-locking pin; 2. Horizontal bar; 21. Stepped bar; 3. Platform plate; 4. Guardrail; 41. Socket hole; 7. Gravity self-locking connector; 71. Column; 72. Self-locking piece; 73. Limiting hole; 74. Limiting pin; 75. Hollowed-out part; 8. Elastic buckle assembly; 81. Connecting rod; 82. V-shaped elastic piece; 83. Elastic buckle. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings: like Figures 1 to 3 As shown, a gravity self-locking connector includes a column 71 of the connector. One end of the column 71 is a fixed end and the other end is a self-locking end. The fixed end can be directly welded and fixed to the upright 11 of the scaffold, or it can be fastened to the upright 11 of the scaffold by bolts, nuts, etc. The self-locking end has a self-locking element 72.

[0026] A hollow section 75 is provided inside the column 71, extending from the self-locking end to the middle of the column 71. The through direction of the hollow section 75 is perpendicular to the axial direction of the column 71. The self-locking component 72 is located in the hollow section 75.

[0027] Specifically, the self-locking component 72 is a strip-shaped piece, and its upper end is rotatably hinged to the outer end of the column 71 via a shaft 73. This outer end is away from the fixed end, such as... Figure 2 As shown, the self-locking element 72 flips downwards under the action of gravity; as Figure 3 As shown, under the action of external force, it can rotate to be flush with the column 71. In order to limit the rotation range of the self-locking component 72, an arc-shaped limiting hole 73 is opened in the middle of the self-locking component 72. The arc-shaped limiting hole 73 is located in the middle of the self-locking component 72 and is perpendicular to the central axis of the self-locking component 72. At the same time, a limiting pin 74 is provided on the column 71 at the part corresponding to the limiting hole 73. The limiting pin 74 passes vertically through the limiting hole 73. The limiting hole 73 and the limiting pin 74 work together to limit the maximum downward tilt angle of the self-locking component 72.

[0028] In practice, the maximum downward tilt angle of the self-locking component 72 is at least 15 degrees, and can be specifically set to 15 degrees, 30 degrees, 60 degrees, 90 degrees, etc.

[0029] Example 2: like Figure 4 , Figure 5 As shown, a quick-assembly scaffolding has a main frame consisting of four uprights 1 and four horizontal bars 2 connected together. Each upright 1 has wheels 10 installed at its lower end. The four horizontal bars 2 are arranged in pairs, parallel to each other. Platform plates 3 are connected between pairs of horizontal bars 2 at the same horizontal level. Each end of the platform plate 3 has multiple clips that engage with the horizontal bars 2. The shape of the clips matches the surface shape of the uprights 1 and horizontal bars 2. For example, if the uprights 1 and horizontal bars 2 are made of square tubing, the clips are U-shaped or concave; if the uprights 1 and horizontal bars 2 are made of round tubing, the clips are arc-shaped. The platform plate 3 provides a platform for high-altitude operations, and lower platform plates 3 can be used for climbing and stepping.

[0030] A vertical bar is fixed between the two parallel horizontal bars 2. At least two shorter horizontal bars are fixed between the vertical bar and the column 1 on one side. The shorter horizontal bars form a staircase that is easy to step on and climb.

[0031] Each column 1 consists of two vertical poles 11 connected vertically, with the upper and lower poles 11 connected by an elastic buckle assembly 8. Specifically, the main body of the elastic buckle assembly 8 is a vertical hollow connecting rod 81. A set of horizontally penetrating through holes is opened at the upper and lower parts of the connecting rod 81. A V-shaped elastic element 82 is installed on the inner side of the upper part of the connecting rod 81. An outward-facing elastic buckle 83 is fixed at both ends of the V-shaped elastic element 82, and the two elastic buckles 83 pass through the through holes at the upper part of the connecting rod 81. A V-shaped elastic element 82 is also installed on the inner side of the lower part of the connecting rod 81. An outward-facing elastic buckle 83 is fixed at both ends of the V-shaped elastic element 82, and the two elastic buckles 83 pass through the through holes at the lower part of the connecting rod 81.

[0032] To further improve the overall stability of the column 1, a downwardly extending extension 13 is welded to the lower end of the upper column 11. A U-shaped part 14 is welded to the lower end of the extension 13. The U-shaped part 14 is horizontally fixed and can be semi-looped around the lower column 11. A set of through holes are opened on the U-shaped part 14, and an L-shaped gravity self-locking pin 15 is connected in the through holes. The insertion end of the L-shaped gravity self-locking pin 15 is set as a gravity self-locking connector 7.

[0033] The lower end of the upper upright 11 is sleeved on the upper part of the connecting rod 81. At the same time, the upper upright 11 has a second limiting hole 12 at the part corresponding to the elastic buckle 83. The upper end of the lower upright 11 is sleeved on the lower part of the connecting rod 81. At the same time, the lower upright 11 has a second limiting hole 12 at the part corresponding to the elastic buckle 83.

[0034] According to actual installation requirements, gravity self-locking connectors 7 can be fixed at the upper, lower, and middle parts of the uprights 11. Guardrails 4 are connected between the gravity self-locking connectors 7 on adjacent uprights 11. Both ends of the guardrails 4 are provided with a sleeve hole 41, and the guardrails 4 are sleeved on the gravity self-locking connectors 7 through the sleeve hole 41.

[0035] like Figures 1 to 3 As shown, the gravity self-locking connector 7 includes a column 71, one end of which is a fixed end and the other end is a self-locking end. The fixed end is welded and fixed to the upright 11 of the scaffold, and the self-locking end has a self-locking component 72. A hollow section 75 is formed inside the column 71, extending from the self-locking end to the middle of the column 71. The through direction of the hollow section 75 is perpendicular to the axial direction of the column 71. The self-locking component 72 is located within this hollow section 75. Specifically, the self-locking component 72 is a strip-shaped piece, and its upper end is rotatably hinged to the outer end of the column 71 via a shaft 73. This outer end is away from the fixed end. Figure 2 As shown, the self-locking element 72 flips downwards under the action of gravity; as Figure 3As shown, under the action of external force, it can rotate to be flush with the column 71. To limit the rotation range of the self-locking component 72, an arc-shaped limiting hole 73 is opened in the middle of the self-locking component 72. The arc-shaped limiting hole 73 is located in the middle of the self-locking component 72 and is perpendicular to the central axis of the self-locking component 72. At the same time, a limiting pin 74 is provided on the column 71 corresponding to the limiting hole 73. The limiting pin 74 passes vertically through the limiting hole 73. The limiting hole 73 and the limiting pin 74 work together to limit the maximum downward tilt angle of the self-locking component 72. According to practice, the maximum downward tilt angle of the self-locking component 72 is at least 15 degrees, and can be specifically set to 15 degrees, 30 degrees, 60 degrees, 90 degrees, etc.

[0036] The lower upright 11 has at least one gravity self-locking connector 7 horizontally fixed at both its upper and lower parts. Between the two uprights 11 on the rear side of the scaffold, there is a cross guardrail, which is formed by two guardrails 4 connected in a cross manner. The upper end of the guardrail 4 is sleeved on the gravity self-locking connector 7 on the upper part of one upright 11 through a sleeve hole 41, and the lower end is sleeved on the gravity self-locking connector 7 on the lower part of the other upright 11 through a sleeve hole 41.

[0037] The upper upright 11 has two or more gravity self-locking connectors 7 fixed horizontally in the middle, and the gravity self-locking connectors 7 in different positions are at a 90-degree angle or a 180-degree angle to each other; a horizontal guardrail 4 is connected between the gravity self-locking connectors 7 in the middle of adjacent uprights 11, thus forming a square surrounding guardrail 4 frame in the middle of the upper upright 11.

[0038] Meanwhile, a gravity self-locking connector 7 is fixed at the top of the uppermost upright 11, and the column 71 of the gravity self-locking connector 7 is vertically welded and fixed to the upper end of the upright 11; horizontal guardrails 4 are connected between the gravity self-locking connectors 7 at the upper ends of adjacent uprights 11, so two guardrails 4 are connected to the same gravity self-locking connector 7 at the same time; the uppermost part of the upright 11 of the scaffold forms a square surrounding guardrail 4 frame.

[0039] Example 3:

[0040] like Figure 6 As shown, according to the actual operation requirements, the scaffolding can be spliced ​​and heightened in the vertical direction. Specifically, based on the scaffolding of Example 2, the uprights 11 are spliced ​​upwards, and horizontal bars 2 are connected between the newly added uprights 11. Platform plates 3 are connected to the horizontal bars 2. The guardrails 4 are then connected using the gravity self-locking connectors 7 at the top and middle of the newly added uprights 11 to form a new layer of heightened scaffolding.

[0041] Example 4:

[0042] like Figure 7As shown, according to the actual operation requirements, the scaffolding can be horizontally spliced ​​and expanded. Specifically, taking the scaffolding of Example 2 as the base scaffolding, the two base scaffoldings are horizontally spliced ​​together. The two base scaffoldings share a set of horizontal bars 2 that are parallel to each other and a set of columns 1 located in the middle.

[0043] The middle of the central column 1 and the upper pole 11 has three gravity self-locking connectors 7 in different orientations; among the three gravity self-locking connectors 7, the middle gravity self-locking connector 7 is simultaneously connected to two guardrails 4 in opposite directions, and the gravity self-locking connectors 7 on both sides are respectively connected to the horizontal guardrails 4.

[0044] At the top of the middle column 1, three guardrails 4 are connected to the same gravity self-locking connector 7; at the top of the other columns, two guardrails 4 are connected to the same gravity self-locking connector 7.

[0045] The central column 1 and the vertical pole 11 below it are connected to two sets of cross guardrails on the upper and lower gravity self-locking connectors 7.

[0046] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A gravity-driven self-locking connector, characterized in that, The column (71) includes a connecting member. One end of the column (71) is a fixed end and the other end is a self-locking end. The self-locking end is provided with a self-locking member (72) that flips downward under the action of gravity. The upper end of the self-locking member is rotatably hinged to the column (71) through a shaft (70). The self-locking member (72) can rotate to be flush with the column (71) under the action of external force. The middle part of the self-locking member (72) is provided with an arc-shaped limiting hole (73). At the same time, the column (71) is provided with a limiting pin (74) at the part corresponding to the limiting hole (73) to limit the maximum downward tilt of the self-locking member (72).

2. The gravity self-locking connector according to claim 1, characterized in that, A hollow section (75) is provided inside the column (71) from the self-locking end to the middle of the column, and the through direction of the hollow section (75) is perpendicular to the axis of the column (71); the self-locking component (72) is located in the hollow section (75).

3. The gravity self-locking connector according to claim 2, characterized in that, The arc-shaped limiting hole (73) is located in the middle of the self-locking member (72) and is perpendicular to the central axis of the self-locking member (72); the maximum tilt range of the self-locking member (72) is 15 degrees to 60 degrees.

4. A quick-assembly scaffold, comprising a frame formed by connecting several vertical columns (1) and several horizontal crossbars (2), several platform plates (3) horizontally connected between the crossbars (2), and wheels (10) disposed at the lower end of the columns (1), characterized in that, The column (1) is provided with a gravity self-locking connector (7) as described in any one of claims 1-3, and the gravity self-locking connectors (7) on adjacent columns (1) are connected to guardrails (4), and both ends of the guardrails (4) are provided with socket holes (41) for fitting onto the gravity self-locking connectors (7).

5. The quick-assembly scaffolding according to claim 4, characterized in that, Each column (1) is composed of at least two uprights (11) connected vertically, and the upper and lower uprights (11) are connected by an elastic buckle assembly (8); the elastic buckle assembly (8) includes a connecting rod (81), and a set of through holes are provided at the upper and lower parts of the connecting rod (81). A V-shaped elastic element (82) is provided on the inner side of the upper part of the connecting rod (81), and elastic buckles (83) are provided at both ends of the V-shaped elastic element (82). The two elastic buckles (83) pass through the through holes at the upper part of the connecting rod (81); a V-shaped elastic element (82) is provided on the inner side of the lower part of the connecting rod (81), and elastic buckles (83) are provided at both ends of the V-shaped elastic element (82). The two elastic buckles (83) pass through the through holes at the lower part of the connecting rod (81). The lower end of the upper upright (11) is sleeved on the upper part of the connecting rod (81), and the upper upright (11) is provided with a second limiting hole (12) at the part corresponding to the elastic buckle (83); the upper end of the lower upright (11) is sleeved on the lower part of the connecting rod (81), and the lower upright (11) is provided with a second limiting hole (12) at the part corresponding to the elastic buckle (83).

6. The quick-assembly scaffolding according to claim 5, characterized in that, The upper pole (11) has a downwardly extending extension (13) fixed at its lower end. The lower end of the extension (13) is fixed with a U-shaped part (14). The U-shaped part (14) can be looped around the lower pole (11). A set of through holes are provided on the U-shaped part (14). An L-shaped gravity self-locking pin (15) is connected in the through holes. The insertion end of the L-shaped gravity self-locking pin (15) is set as the gravity self-locking connector (7).

7. The quick-assembly scaffolding according to claim 4, characterized in that, Both ends of the platform are provided with arc-shaped clips, which are correspondingly engaged with the crossbar (2); a number of step bars (21) are provided between the upper and lower crossbars (2) to facilitate stepping and climbing.

8. The quick-assembly scaffolding according to claim 4, characterized in that, The upper end of the topmost pole (11) is provided with the gravity self-locking connector, and the column (71) of the gravity self-locking connector is vertically fixed to the upper end of the pole (11).

9. The quick-assembly scaffolding according to claim 4, characterized in that, The gravity self-locking connector (7) is installed at the upper, middle or lower part of the upright (11), and its column (71) is horizontally perpendicular to the upright (11).

10. The quick-assembly scaffolding according to claim 4, characterized in that, Between the bottommost uprights (11), there are cross guardrails. The cross guardrails are formed by two guardrails (4) connected in a cross manner. The upper end of each guardrail (4) is connected to the gravity self-locking connector (7) on the upper part of one upright (11) through the sleeve hole (41), and the lower end is connected to the gravity self-locking connector (7) on the lower part of the other upright (11) through the sleeve hole (41).

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