A device for preventing overturning of a door-type scaffold and a method of use

Abstract

The present application relates to the technical field of scaffold, especially to a door type scaffold anti-overturning device and a use method thereof, which comprises a scaffold assembly, wherein the scaffold assembly comprises an extension sleeve rod, a supporting bottom rod is arranged below the extension sleeve rod, a bottom block is fixedly installed in the supporting bottom rod, and a sleeve is fixedly installed in the supporting bottom rod. When the sleeve rod sinks, the fixed conduction type clamping block is used to extend the spring extension rod, the bidirectional hinge block is expanded, the L-shaped auxiliary long plate is moved outward, the friction clamping force with the sleeve is increased, the elastic extension rod and the conduction type clamping block provide additional limiting, the scaffold cannot be completely separated, the sudden collapse of the scaffold caused by aging of components is avoided, and the safety of the scaffold is enhanced.

Description

Technical Field

[0001] This invention relates to the field of scaffolding technology, and in particular to a portal scaffolding anti-tipping device and its usage method. Background Technology

[0002] Portal scaffolding is a commonly used temporary structure in construction. Its "portal"-shaped main frame consists of uprights, horizontal bars, and diagonal braces, and is characterized by convenient assembly and disassembly, good load-bearing capacity, and is widely used in exterior wall construction, interior decoration, equipment installation, and other scenarios. However, the high height-to-width ratio and weak lateral stiffness of portal scaffolding make it prone to overturning accidents during use, seriously threatening construction safety. Therefore, anti-overturning devices have become one of the core components of the portal scaffolding safety system.

[0003] A patent document with publication number CN219118735U discloses an anti-tipping device for portal scaffolding. This device involves securing a pipe wrench on one side of the portal scaffolding to the guardrail, then adjusting the length of the supporting steel pipe by rotating the butterfly bolt, and finally adjusting the universal joint base to place it on a stable and firm surface. This completes the reinforcement installation on one side of the portal scaffolding. While this anti-tipping device is simple in structure and low in cost, enabling rapid reinforcement of portal scaffolding, the use of bolts for positioning makes it susceptible to stripping or damage, especially over extended periods of use and under heavy loads.

[0004] In order to increase the construction height of scaffolding or to carry out multi-level construction at the same time, multiple extended work platforms are built on the scaffolding. However, the existing equipment is mainly fixed by bolts, which is prone to overturning when the load is large. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a portal scaffold anti-tipping device and its usage method.

[0006] On the one hand, this application provides a portal scaffold anti-tipping device, including a scaffold assembly, the scaffold assembly including an extension sleeve, a support base rod provided below the extension sleeve, a base block fixedly installed inside the support base rod, and a sleeve fixedly installed inside the support base rod; The scaffolding assembly has a safety support component installed inside. A fixed conductive locking block is welded inside the extension sleeve. An auxiliary hollow threaded sleeve is fixedly installed on the top of the support base rod. The fixed conductive locking block is inserted into the auxiliary hollow threaded sleeve. A threaded rod is threaded between the fixed conductive locking block and the auxiliary hollow threaded sleeve. A spring extension rod is fixedly installed at the bottom of the fixed conductive locking block. Multiple sets of bidirectional hinge blocks are hinged to the outer side of the spring extension rod. An L-shaped auxiliary plate is hinged to the side of the bidirectional hinge block away from the spring extension rod. The extension end of the spring extension rod is fixedly installed on the top of the slide adjustment locking block. A conductive locking block is fixedly installed at the bottom of the L-shaped auxiliary plate. The L-shaped auxiliary plate is slidably installed inside the slide adjustment locking block.

[0007] Optionally, the scaffolding assembly further includes a workbench fixedly installed between multiple sets of extension sleeves, with fixed long poles fixedly installed on both sides of the workbench, and the extension sleeves fixedly installed on both sides of the fixed long poles.

[0008] Optionally, a circular ring frame is welded to the outer side of the extension sleeve, and an auxiliary pressure transmission rod is fixedly installed on the outer side of the circular ring frame.

[0009] Optionally, an auxiliary support assembly is installed on the outside of the scaffold assembly. The auxiliary support assembly includes a friction positioning ring fixedly installed on the outside of the support base rod, and a collar bracket is slidably installed on the outside of the friction positioning ring.

[0010] Optionally, two sets of built-in threaded clamps are fixedly installed at the opening of the collar holder. The internal threads of the two sets of built-in threaded clamps are equipped with bidirectional threaded rods. The two sides of the bidirectional threaded rods are respectively set to be connected to the two sets of built-in threaded clamps in opposite states. A hollow threaded collar block is threadedly installed at one end of the bidirectional threaded rod that passes through the built-in threaded clamps. An arc-shaped limiting block is hinged to the outside of the hollow threaded collar block.

[0011] Optionally, a multi-hole rod is hinged to one side of the collar holder, a positioning sleeve is slidably installed on the outer side of the multi-hole rod, and a base block is hinged to the bottom of the positioning sleeve.

[0012] Optionally, multiple elastic telescopic rods are fixedly installed on the outer side of the L-shaped auxiliary long plate, and an arc-shaped friction block is fixedly installed on the side of the multiple elastic telescopic rods away from the spring extension rod.

[0013] On the other hand, this application provides a method for using the above-described anti-tipping device for portal scaffolding, comprising the following steps: S1. Insert the fixed conductive block into the auxiliary hollow threaded sleeve at the top of the support base rod and fix it with the threaded rod. Ensure that the conductive block, sliding groove adjustment block and arc friction block of the safety support assembly are correctly inserted into the support base rod and fit with the base block and sleeve to complete the installation of the basic components. S2. Erect another set or more sets of extension poles on top of the existing structure using safety support components, and reinforce the overall frame with a workbench and fixed long poles. S3. Place the collar bracket on the friction positioning ring on the outside of the support base rod, slide and adjust the multi-hole rod and positioning sleeve to make the chassis block fully contact the ground, then manually rotate the double-threaded rod to clamp the friction positioning ring, rotate the hollow threaded collar block to one end of the double-threaded rod, and push the arc-shaped limiting block to fit against the outer surface of the collar bracket. S4. The safety support component automatically monitors the status. When the threaded connection fails, the extension rod sinks and triggers a mechanism. The spring extension rod presses down, pushing the bidirectional hinge block to unfold the L-shaped auxiliary plate. The latter increases the friction with the sleeve through the elastic telescopic rod, while using the conductive locking block for limiting.

[0014] Compared with the prior art, this application includes at least one of the following beneficial technical effects: When the extension sleeve sinks, the fixed conductive block presses down the spring extension rod, pushing the two-way hinge block to unfold, causing the L-shaped auxiliary long plate to move outward, increasing the frictional clamping force with the sleeve. At the same time, the elastic telescopic rod and the conductive block provide additional limits to ensure that the scaffold will not completely come out, avoiding the sudden collapse of the scaffold due to component aging, and enhancing the safety of the scaffold. By adopting a modular design for the components, single-layer or multi-layer structures can be quickly erected to meet low-height construction needs. The auxiliary support components can be adjusted through sliding and hinge to adapt to different ground conditions. The collar bracket can slide along the friction positioning ring and be quickly fixed by a two-way threaded rod, thereby reducing installation time and labor costs and improving the applicability of the scaffolding. The auxiliary support assembly includes a perforated rod, a positioning sleeve, and a chassis block. The chassis block can be adjusted in angle and length to ensure full contact with the ground, thus distributing the load. Combined with the locking function of the arc-shaped limit block, it prevents the assembly from loosening and further strengthens the anti-tipping effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the anti-tipping device for a portal scaffold. Figure 2 This is a schematic diagram of the extension sleeve of the present invention; Figure 3 This is a schematic diagram of the positioning sleeve of the present invention; Figure 4 For the present invention Figure 3Enlarged view of region A in the middle; Figure 5 This is a schematic diagram of the structure of the insurance support component of the present invention; Figure 6 This is a schematic diagram of the structure of the fixed conductive card block of the present invention. Figure 7 This is a schematic diagram of the extension sleeve of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of region B in the middle.

[0016] Reference numerals: 1. Scaffolding assembly; 101. Workbench; 102. Support base rod; 103. Fixed long rod; 104. Auxiliary pressure transmission rod; 105. Circular ring frame; 106. Extension sleeve rod; 107. Base block; 108. Sleeve; 2. Auxiliary support assembly; 201. Collar clip; 202. Multi-hole rod; 203. Base block; 204. Positioning sleeve; 205. Two-way threaded rod; 206. Internal threaded clamping block; 2 07. Hollow threaded collar block; 208. Arc-shaped limiting block; 209. Friction positioning ring; 3. Safety support assembly; 301. Fixed conductive locking block; 302. Threaded insert rod; 303. Slide groove adjusting locking block; 304. Spring extension rod; 305. Two-way hinge block; 306. Conductive locking block; 307. Arc-shaped friction block; 308. L-shaped auxiliary long plate; 309. Elastic telescopic rod; 310. Auxiliary hollow threaded sleeve. Detailed Implementation

[0017] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0018] like Figures 1-4As shown, the present invention proposes a portal scaffold anti-tipping device, comprising a scaffold assembly 1, which includes an extension sleeve 106, a supporting base 102 disposed below the extension sleeve 106, a base block 107 fixedly installed inside the supporting base 102, and a sleeve 108 fixedly installed inside the supporting base 102. The scaffold assembly 1 also includes a workbench 101 fixedly installed between multiple sets of extension sleeves 106, a fixed long rod 103 fixedly installed on both sides of the workbench 101, and two extension sleeves 106 fixedly installed on both sides of the fixed long rod 103. A circular ring frame 105 is welded to the outside of the extension sleeve 106, and an auxiliary pressure transmission rod 104 is fixedly installed on the outside of the circular ring frame 105. An auxiliary support assembly 2 is installed on the outside of the scaffold assembly 1, and the auxiliary support assembly 2 includes components fixedly installed on the supporting base 106. 2. The outer friction positioning ring 209 has a collar bracket 201 slidably installed on its outer side. Two sets of internal threaded clamps 206 are fixedly installed at the opening of the collar bracket 201. The internal threads of the two sets of internal threaded clamps 206 are installed with bidirectional threaded rods 205. The two sides of the bidirectional threaded rods 205 are respectively connected to the two sets of internal threaded clamps 206 with opposite threads. A hollow threaded collar block 207 is threaded at one end of the bidirectional threaded rod 205 that passes through the internal threaded clamps 206. An arc-shaped limiting block 208 is hinged to the outer side of the hollow threaded collar block 207. A multi-hole rod 202 is hinged to one side of the collar bracket 201. A positioning sleeve 204 is slidably installed on the outer side of the multi-hole rod 202. A base block 203 is hinged to the bottom of the positioning sleeve 204. A safety support assembly 3 is installed inside the scaffold assembly 1.

[0019] In this embodiment, when single-layer construction or construction height requirements are low, the support base rod 102 and extension sleeve rod 106 are first installed together using the safety support component 3. If multi-layer construction or construction requirements are high, based on the above operations, another set or more sets of extension sleeve rods 106 are erected on top of the previous set of extension sleeve rods 106 using the safety support component 3. When the support rod 102 is transported to the construction site, the collar bracket 201 is first fitted onto the outside of the friction positioning ring 209 until the positioning sleeve 204 is adjusted along the telescopic movement of the positioning sleeve 204 until the base block 203 can maintain full contact with the ground. At this time, the operator manually rotates the bidirectional threaded rod 205. Since the threads on both sides of the bidirectional threaded rod 205 are opposite, the two sets of built-in threaded clamps 206 move towards the center of the bidirectional threaded rod 205. As a result, the collar bracket 201 generates a clamping force on the friction positioning ring 209. Then, the insertion rod is inserted into the overlapping part of the connection hole between the positioning sleeve 204 and the multi-hole rod 202. Positioning is performed, and finally, the hollow threaded collar block 207 is rotated and installed on one side of the bidirectional threaded rod 205 until the upper surface of the hollow threaded collar block 207 is nearly parallel to the collar holder 201. Then, the arc-shaped limiting block 208 is manually pushed until the arc-shaped surface of the arc-shaped limiting block 208 is in contact with the outer surface of the collar holder 201. At this time, the chassis block 203, the multi-hole rod 202 and the positioning sleeve 204 act as auxiliary pressure bearing, which plays a role in preventing overturning. At the same time, because the arc-shaped limiting block 208 is in contact with the collar holder 201, the bidirectional threaded rod 205 cannot be disengaged outward, thereby improving the stability of the anti-overturning component installation.

[0020] like Figures 5-8 As shown, a fixed conductive locking block 301 is welded inside the extension sleeve 106. An auxiliary hollow threaded sleeve 310 is fixedly installed on the top of the support base rod 102. The fixed conductive locking block 301 is inserted into the auxiliary hollow threaded sleeve 310. A threaded insert rod 302 is threaded between the fixed conductive locking block 301 and the auxiliary hollow threaded sleeve 310. A spring extension rod 304 is fixedly installed at the bottom of the fixed conductive locking block 301. Multiple sets of bidirectional hinge blocks 305 are hinged to the outer side of the spring extension rod 304. An L-shaped auxiliary plate 308 is hinged to the side of the spring extension rod 304 away from the spring extension rod 305. The extension end of the spring extension rod 304 is fixedly installed on the top of the slide adjustment block 303. A conductive block 306 is fixedly installed at the bottom of the L-shaped auxiliary plate 308. The L-shaped auxiliary plate 308 is slidably installed inside the slide adjustment block 303. Multiple elastic telescopic rods 309 are fixedly installed on the outside of the L-shaped auxiliary plate 308. An arc-shaped friction block 307 is fixedly installed on the side of the multiple elastic telescopic rods 309 away from the spring extension rod 304.

[0021] In this embodiment, during the installation of the support base rod 102 and the extension sleeve rod 106, as the fixed conductive locking block 301 is inserted into the support base rod 102, the conductive locking block 306, the sliding groove adjusting locking block 303, and the arc-shaped friction block 307 are inserted into the support base rod 102. At this time, the conductive locking block 306 is located between the sleeve 108 and the base block 107, the arc-shaped friction block 307 is located in the area of ​​the sleeve 108, and the sliding groove adjusting locking block 303 is attached to the upper surface of the base block 107. This explains that, under normal conditions, the diameter between the two sets of conductive locking blocks 306 is smaller than the inner diameter of the sleeve 108, the diameter of the sliding groove adjusting locking block 303 is smaller than the inner diameter of the sleeve 108, and the arc-shaped friction block 307 is in contact with the inner wall of the sleeve 108 under normal conditions due to the elastic force of the spring inside the elastic telescopic rod 309. When the threaded insertion rod 302 experiences stripping and aging, causing the extension sleeve 106 to sink, the bottom of the sliding groove adjusting locking block 303 is in contact with the top of the bottom block 107. Then, the fixed conductive locking block 301 moves downward following the extension sleeve 106. At this time, the spring extension rod 304 is compressed downward, and the L-shaped auxiliary plate 308 is limited by the groove opened on the surface of the groove adjusting locking block 303. Then, the bidirectional hinge block 305 deflects outward and pushes the L-shaped auxiliary plate 308 to move outward along the groove. The L-shaped auxiliary plate 308 increases the compression force of the spring inside the elastic telescopic rod 309 by compressing the elastic telescopic rod 309. Then, the arc-shaped friction block 307 further interacts with the sleeve 108. The spring extension rod 304 moves outward with the spring clamping mechanism, and the spring clamping block 306 fits between the sleeve 108 and the support base rod 102. The upper surface of the spring clamping block 306 is limited by the lower surface of the sleeve 108, which prevents the fixed spring clamping block 301 and the extension rod 106 from further dislodging inside the support base rod 102. This improves the anti-overturning ability of the scaffolding, adds an extra layer of protection for the threaded connection, and limits the scaffolding sinking distance. To clarify, when workers need to disassemble the extension sleeve 106 and the support base rod 102, they only need to remove the threaded insert 302 from the inside of the auxiliary hollow threaded sleeve 310 and then remove the fixed conductive block 301 from the inside of the support base rod 102. At this time, the spring inside the spring extension rod 304 will return to its original length, and the L-shaped auxiliary long plate 308 will be attached to the outer surface of the spring extension rod 304 through the bidirectional hinge block 305. The arc-shaped friction block 307 and the conductive block 306 will move away from the support base rod 102, and the extension sleeve 106 and the support base rod 102 can be separated, thus completing the disassembly.

[0022] On the other hand, this application provides a method for using a portal scaffold anti-tipping device, comprising the following steps: S1. Insert the fixed conductive block 301 into the auxiliary hollow threaded sleeve 310 at the top of the support base rod, and fix it with the threaded rod 302. Ensure that the conductive block 306, the sliding groove adjustment block 303 and the arc friction block 307 of the safety support assembly are correctly inserted into the support base rod and fit with the base block 107 and the sleeve 108 to complete the installation of the basic components. S2. Use the safety support assembly 3 to erect another set or more sets of extension sleeves 106 on top of the existing structure, and reinforce the overall frame with the workbench 101 and the fixed long rod 103. S3. Place the collar bracket 201 onto the friction positioning ring 209 on the outside of the support base rod 102, slide and adjust the multi-hole rod 202 and the positioning sleeve 204 to make the chassis block 203 fully contact the ground, then manually rotate the bidirectional threaded rod 205 to clamp the friction positioning ring, rotate the hollow threaded collar block 207 onto one end of the bidirectional threaded rod 205, and push the arc-shaped limiting block 208 to fit against the outer surface of the collar bracket 201. S4. The safety support component 3 automatically monitors the status. When the threaded connection fails, the extension sleeve 106 sinks and triggers a mechanism. The spring extension rod 304 presses down and pushes the bidirectional hinge block 305 to unfold the L-shaped auxiliary long plate 308. The latter increases the friction with the sleeve 108 through the elastic telescopic rod 309, and at the same time uses the conductive locking block 306 for limiting.

[0023] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A portal scaffold anti-tipping device, comprising a scaffold assembly (1), characterized in that, The scaffolding assembly (1) includes an extension sleeve (106), a support base rod (102) is provided below the extension sleeve (106), a base block (107) is fixedly installed inside the support base rod (102), and a sleeve (108) is fixedly installed inside the support base rod (102). The scaffolding assembly (1) is equipped with a safety support assembly (3). The extension sleeve (106) is welded with a fixed conductive block (301). The top of the support base rod (102) is fixedly installed with an auxiliary hollow threaded sleeve (310). The fixed conductive block (301) is inserted into the auxiliary hollow threaded sleeve (310). A threaded rod (302) is threaded between the fixed conductive block (301) and the auxiliary hollow threaded sleeve (310). The bottom of the fixed conductive block (301) is fixed. A spring extension rod (304) is installed, and multiple sets of bidirectional hinge blocks (305) are hinged to the outer side of the spring extension rod (304). An L-shaped auxiliary plate (308) is hinged to the side of the bidirectional hinge block (305) away from the spring extension rod (304). The extension end of the spring extension rod (304) is fixedly installed on the top of the slide groove adjustment block (303). A conductive block (306) is fixedly installed on the bottom of the L-shaped auxiliary plate (308). The L-shaped auxiliary plate (308) is slidably installed inside the slide groove adjustment block (303).

2. The anti-tipping device for portal scaffolding according to claim 1, characterized in that, The scaffolding assembly (1) also includes a workbench (101) fixedly installed between multiple sets of extension sleeves (106), with fixed long poles (103) fixedly installed on both sides of the workbench (101), and the two extension sleeves (106) fixedly installed on both sides of the fixed long poles (103).

3. The anti-tipping device for portal scaffolding according to claim 2, characterized in that, A circular ring frame (105) is welded to the outside of the extension sleeve (106), and an auxiliary pressure transmission rod (104) is fixedly installed on the outside of the circular ring frame (105).

4. The anti-tipping device for portal scaffolding according to claim 3, characterized in that, An auxiliary support assembly (2) is installed on the outside of the scaffold assembly (1). The auxiliary support assembly (2) includes a friction positioning ring (209) fixedly installed on the outside of the support base rod (102). A collar bracket (201) is slidably installed on the outside of the friction positioning ring (209).

5. The anti-tipping device for portal scaffolding according to claim 4, characterized in that, Two sets of built-in threaded clamps (206) are fixedly installed at the opening of the collar holder (201). The internal threads of the two sets of built-in threaded clamps (206) are equipped with bidirectional threaded rods (205). The two sides of the bidirectional threaded rods (205) are respectively set to be connected to the two sets of built-in threaded clamps (206) in opposite states. A hollow threaded collar block (207) is threaded at one end of the bidirectional threaded rod (205) that passes through the built-in threaded clamps (206). An arc-shaped limiting block (208) is hinged to the outside of the hollow threaded collar block (207).

6. The anti-tipping device for portal scaffolding according to claim 5, characterized in that, A multi-hole rod (202) is hinged to one side of the collar holder (201), and a positioning sleeve (204) is slidably installed on the outer side of the multi-hole rod (202). A base block (203) is hinged to the bottom of the positioning sleeve (204).

7. The anti-tipping device for portal scaffolding according to claim 6, characterized in that, Multiple elastic telescopic rods (309) are fixedly installed on the outer side of the L-shaped auxiliary long plate (308), and an arc-shaped friction block (307) is fixedly installed on the side of the multiple elastic telescopic rods (309) away from the spring extension rod (304).

8. A method of using a portal scaffold anti-tipping device, comprising using the portal scaffold anti-tipping device as described in claim 7, characterized in that... Includes the following steps: S1. Insert the fixed conductive block (301) into the auxiliary hollow threaded sleeve (310) at the top of the support base rod and fix it with the threaded rod (302). Ensure that the conductive block (306), the sliding groove adjustment block (303), and the arc friction block (307) of the safety support assembly are correctly inserted into the support base rod and fit with the base block (107) and the sleeve (108) to complete the installation of the basic components. S2. By using the safety support assembly (3), another set or more sets of extension sleeves (106) are erected on top of the existing structure, and the overall frame is reinforced by the workbench (101) and the fixed long pole (103). S3. Place the collar bracket (201) on the friction positioning ring (209) on the outside of the support base rod (102), slide and adjust the multi-hole rod (202) and the positioning sleeve (204) to make the chassis block (203) fully contact the ground, then manually rotate the double-threaded rod (205) to clamp the friction positioning ring, rotate the hollow threaded collar block (207) to one end of the double-threaded rod (205), and push the arc-shaped limiting block (208) to fit against the outer surface of the collar bracket (201); S4. The safety support component (3) automatically monitors the status. When the threaded connection fails, the extension sleeve (106) sinks and triggers the mechanism. The spring extension rod (304) presses down and pushes the two-way hinge block (305) to unfold the L-shaped auxiliary plate (308). The latter increases the friction with the sleeve (108) through the elastic telescopic rod (309) and uses the conductive locking block (306) for limiting.

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