Adjustable top fence for scaffold

Abstract

The utility model belongs to the technical field of scaffolds, and particularly relates to an adjustable top fence for a scaffold. The scaffold comprises two sets of original scaffold vertical supporting units, and the two sets of original scaffold vertical supporting units are arranged at intervals in the length direction a of an original scaffold; the original scaffold vertical supporting unit comprises two supporting vertical pipes, and the two supporting vertical pipes are arranged at intervals in the width direction b of the original scaffold; the device further comprises additionally-installed vertical rods and additionally-installed transverse rods. The lower end of the added vertical rod is inserted into the supporting vertical pipe, and the upper end of the added vertical rod is higher than the upper end of the supporting vertical pipe. The additionally-installed vertical rod is connected with the supporting vertical pipe through an adjustable connecting structure. Every two adjacent additionally-installed vertical rods are connected through an additionally-installed transverse rod, and a protection area is defined by the additionally-installed vertical rods. And the additionally mounted cross rod is higher than the original scaffold operation platform. When the story height of a construction position is low and a scaffold with a small operation height is adopted for operation, the operation safety of constructors is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of scaffolding, and particularly relates to an adjustable top fence for a scaffolding. Background Art

[0002] Finished scaffolding has been widely used in the construction operation field. The existing scaffolding includes vertical poles, horizontal bars, X-shaped reinforcing bars, working platforms, etc. At the position near the top of the vertical pole of the working platform, the upper surface of the working platform serves as the working surface for construction workers to stand or sit and operate. Usually, only scaffolding with a relatively high working height (greater than or equal to 3 meters) will be provided with a fence at the top, while scaffolding with a relatively low working height (greater than or equal to 2 meters and less than or equal to 3 meters) usually does not have a fence at the top. When using scaffolding with a relatively low working height for construction at a relatively low storey height, it is easy to occur falling accidents and the safety factor is low. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an adjustable top fence for a scaffolding, which is applicable to finished scaffolding without a top fence, and can ensure the operation safety of construction workers when using scaffolding with a relatively low working height (greater than or equal to 2 meters and less than or equal to 3 meters) for construction at a relatively low storey height.

[0004] The technical solution adopted by the utility model to solve its technical problem is: an adjustable top fence for a scaffolding, including the original scaffolding vertical support unit. There are two groups of the original scaffolding vertical support units, and the two groups of the original scaffolding vertical support units are arranged at intervals along the length direction a of the original scaffolding; the original scaffolding vertical support unit includes support vertical pipes, and there are two support vertical pipes, and the two support vertical pipes are arranged at intervals along the width direction b of the original scaffolding; it also includes added vertical poles and added horizontal bars; the lower end of the added vertical pole is inserted into the support vertical pipe, and the upper end of the added vertical pole is higher than the upper end of the support vertical pipe; the added vertical pole and the support vertical pipe are connected by an adjustable connection structure; adjacent added vertical poles are connected by added horizontal bars and enclose a protection area; the added horizontal bar is higher than the working platform of the original scaffolding.

[0005] Further, the adjustable connection structure includes a bolt, a limiting part, and a vertically arranged connecting pipe;

[0006] The limiting part is arranged on the outer peripheral surface of the connecting pipe; there is a first distance between the upper end of the connecting pipe and the limiting part and it serves as an installation section; there is a second distance between the lower end of the connecting pipe and the limiting part and it serves as a plug-in section;

[0007] The insertion section is located in the support vertical pipe, and the limiting part is located above the support vertical pipe and contacts the upper end face of the support vertical pipe; the connecting pipe is sleeved outside the additional vertical pipe and is in movable fit; the connecting pipe and the additional vertical pipe are locked by bolts, and the bolts are located in the installation section.

[0008] Further, the limiting part is a limiting sleeve coaxially arranged with the connecting pipe.

[0009] Further, the limiting sleeve is welded to the connecting pipe.

[0010] Further, a nut is welded on the outer side wall of the connecting pipe; the bolt passes through the through hole on the connecting pipe and is threadedly connected with the nut.

[0011] Further, the additional cross bar includes a first cross bar and a second cross bar;

[0012] One side of the upper end of the additional vertical pipe is connected with a vertically arranged installation sleeve, both ends of the second cross bar are connected with vertically arranged insertion rods located below the second cross bar itself, the insertion rods are in insertion fit with the installation sleeve, and the second cross bar is located above the installation sleeve; there are two second cross bars, and the two second cross bars are located at both ends in the length direction a of the original scaffold;

[0013] Both ends of the first cross bar are connected to the additional vertical pipe, there are two first cross bars, and the two first cross bars are located at both ends in the width direction b of the original scaffold.

[0014] Further, the outer side surface of the additional vertical pipe is welded to the outer side surface of the installation sleeve, and the upper end of the insertion rod is welded to the lower surface of the second cross bar.

[0015] Compared with the prior art, the beneficial effects of the present utility model are: the present utility model provides an adjustable top fence for a scaffold, which is applicable to a finished scaffold without a top fence. By adding a top fence with adjustable height, construction workers can adjust the height of the top fence according to the floor height at the construction site. When the floor height at the construction site is relatively low and a scaffold with a relatively low working height (greater than or equal to 2 meters and less than or equal to 3 meters) is used for operation, the operation safety of construction workers is ensured. It has the advantages of convenient disassembly and assembly, being able to be reused repeatedly, being safe and reliable, and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view installation structure schematic diagram of the present utility model;

[0017] Figure 2 is the side view installation structure schematic diagram of the present utility model;

[0018] Figure 3It is a sectional view of the adjustable connection structure in the present utility model;

[0019] Reference numerals: 1 - support vertical pipe; 2 - additional vertical pipe; 201 - installation sleeve; 3 - adjustable connection structure; 301 - connecting pipe; 302 - limiting sleeve; 303 - bolt; 304 - nut; 4 - first cross bar; 5 - second cross bar; 501 - insertion rod; 6 - original scaffolding working platform. Specific embodiments

[0020] The present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] An adjustable top fence for a scaffolding, comprising an original scaffolding vertical support unit, there are two groups of the original scaffolding vertical support units, and the two groups of the original scaffolding vertical support units are arranged at intervals along the length direction a of the original scaffolding; the original scaffolding vertical support unit includes a support vertical pipe 1, there are two support vertical pipes 1, and the two support vertical pipes 1 are arranged at intervals along the width direction b of the original scaffolding. It is a structure in the prior art.

[0022] It further includes an additional vertical pipe 2 and additional cross bars; the lower end of the additional vertical pipe 2 is inserted into the support vertical pipe 1, and the upper end of the additional vertical pipe 2 is higher than the upper end of the support vertical pipe 1; the additional vertical pipe 2 and the support vertical pipe 1 are connected by an adjustable connection structure 3; adjacent two additional vertical pipes 2 are connected by additional cross bars and enclose a protection area; the additional cross bars are higher than the original scaffolding working platform 6. By providing the adjustable connection structure 3, the additional vertical pipe 2 can be extended or shortened in the vertical direction. By installing the additional vertical pipe 2 on the support vertical pipe 1, the installation position of the additional cross bars is raised. The area enclosed by the four additional cross bars corresponds to the upper surface of the original scaffolding working platform 6.

[0023] The adjustable connection structure 3 can be a bolt and a multi-stage socket for plug-in fit. Preferably, the adjustable connection structure 3 includes a bolt 303, a limiting portion, and a vertically arranged connecting pipe 301; the limiting portion is arranged on the outer peripheral surface of the connecting pipe 301; there is a first distance between the upper end of the connecting pipe 301 and the limiting portion and it serves as an installation section; there is a second distance between the lower end of the connecting pipe 301 and the limiting portion and it serves as a plug-in section; the plug-in section is located in the support riser 1, and the limiting portion is located above the support riser 1 and is in contact with the upper end surface of the support riser 1; the connecting pipe 301 is sleeved outside the additional vertical rod 2 and is in movable fit; the connecting pipe 301 and the additional vertical rod 2 are locked by the bolt 303, and the bolt 303 is located in the installation section. The outer diameter of the plug-in section of the connecting pipe 301 is smaller than the inner diameter of the support riser 1 to ensure that the plug-in section can be smoothly inserted into the support riser 1. The limiting portion plays a limiting role on the connecting pipe 301 to prevent the connecting pipe 301 from falling. The inner diameter of the connecting pipe 301 is larger than the outer diameter of the additional vertical rod 2 to ensure that the additional vertical rod 2 can be smoothly inserted into the connecting pipe 301 and then the position adjustment in the vertical direction can be realized. When the additional vertical rod 2 is adjusted to a suitable position, the additional vertical rod 2 and the connecting pipe 301 are locked by the bolt 303.

[0024] The limiting portion has various implementation manners, and the limiting portion can be a block structure. Preferably, the limiting portion is a limiting sleeve 302 coaxially arranged with the connecting pipe 301.

[0025] Preferably, the limiting sleeve 302 is welded to the connecting pipe 301.

[0026] Threaded holes for threaded fit with the bolt 303 can be opened on the connecting pipe 301. Preferably, a nut 304 is welded on the outer side wall of the connecting pipe 301; the bolt 303 passes through the through hole on the connecting pipe 301 and is threadedly connected with the nut 304.

[0027] Preferably, the added crossbar includes a first crossbar 4 and a second crossbar 5; one side of the upper end of the added vertical rod 2 is connected with a vertically arranged mounting sleeve 201. Both ends of the second crossbar 5 are connected with vertically arranged insertion rods 501 located below the second crossbar 5 itself. The insertion rods 501 are in plug-in fit with the mounting sleeve 201, and the second crossbar 5 is located above the mounting sleeve 201. There are two second crossbars 5, and the two second crossbars 5 are located at both ends of the original scaffolding in the length direction a. Both ends of the first crossbar 4 are connected to the added vertical rod 2. There are two first crossbars 4, and the two first crossbars 4 are located at both ends of the original scaffolding in the width direction b. The second crossbar 5 can be disassembled and assembled under the cooperation of the mounting sleeve 201 and the insertion rod 501, and the operation is convenient. By providing the fixedly connected first crossbar 4, the distance between the two added vertical rods 2 arranged at intervals along the length direction a of the original scaffolding is kept fixed, which is beneficial to the rapid installation of the second crossbar 5.

[0028] Preferably, the outer side surface of the added vertical rod 2 is welded to the outer side surface of the mounting sleeve 201, and the upper end of the insertion rod 501 is welded to the lower surface of the second crossbar 5.

[0029] The added vertical rod 2, the connecting pipe 301, the limiting sleeve 302, the first crossbar 4, the mounting sleeve 201, the insertion rod 501 and the second crossbar 5 can all be made of cemented carbide products. Preferably, the added vertical rod 2, the connecting pipe 301, the limiting sleeve 302, the first crossbar 4, the mounting sleeve 201, the insertion rod 501 and the second crossbar 5 are all made of steel products.

[0030] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Any equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An adjustable top fence for a scaffold, comprising an original scaffold vertical support unit, wherein the original scaffold vertical support unit is provided in two groups, and the two groups of the original scaffold vertical support units are arranged at intervals along the length direction a of the original scaffold; the original scaffold vertical support unit comprises a support riser (1), wherein two support risers (1) are provided, and the two support risers (1) are arranged at intervals along the width direction b of the original scaffold; characterized in that: It also includes an additional vertical pole (2) and an additional horizontal pole; the lower end of the additional vertical pole (2) is inserted into the supporting vertical pipe (1), and the upper end of the additional vertical pole (2) is higher than the upper end of the supporting vertical pipe (1); the additional vertical pole (2) is connected to the supporting vertical pipe (1) through an adjustable connection structure (3); two adjacent additional vertical poles (2) are connected through an additional horizontal pole and form a protective area; the additional horizontal pole is higher than the original scaffolding work platform (6).

2. The adjustable top rail for a scaffold as claimed in claim 1, characterized in that: The adjustable connection structure (3) comprises a bolt (303), a limiting portion and a vertically arranged connection pipe (301); The limiting portion is arranged on the outer circumferential surface of the connecting pipe (301); a first distance is provided between the upper end of the connecting pipe (301) and the limiting portion, and the connecting pipe (301) serves as a mounting section; a second distance is provided between the lower end of the connecting pipe (301) and the limiting portion, and the connecting pipe (301) serves as a plug-in section; The plug-in section is located in the supporting vertical pipe (1), and the limiting portion is located above the supporting vertical pipe (1) and is in contact with the upper end surface of the supporting vertical pipe (1); the connecting pipe (301) is sleeved outside the mounting vertical pole (2) and is movably matched; the connecting pipe (301) and the mounting vertical pole (2) are locked by bolts (303), and the bolts (303) are located in the installation section.

3. The adjustable top rail for a scaffold as claimed in claim 2, characterized in that: The limiting portion is a limiting sleeve (302) arranged coaxially with the connecting pipe (301).

4. The adjustable top rail for a scaffold as claimed in claim 3, characterized in that: The limiting sleeve (302) is connected to the connecting pipe (301) by welding.

5. The adjustable top rail for a scaffold as claimed in claim 2, characterized in that: A nut (304) is welded on the outer side wall of the connecting pipe (301); the bolt (303) passes through a through hole on the connecting pipe (301) and is threadedly connected to the nut (304).

6. The adjustable top rail for a scaffold as claimed in claim 1, characterized in that: The additional crossbar comprises a first crossbar (4) and a second crossbar (5); One side of the upper end of the additional vertical rod (2) is connected to a vertically arranged installation sleeve (201), and both ends of the second cross bar (5) are connected to vertically arranged plug-in rods (501) located below the second cross bar (5), the plug-in rod (501) is plugged into and matched with the installation sleeve (201), and the second cross bar (5) is located above the installation sleeve (201); two second cross bars (5) are provided, and the two second cross bars (5) are located at both ends of the length direction a of the original scaffolding; Both ends of the first crossbar (4) are connected to the additional vertical pole (2), two first crossbars (4) are provided, and the two first crossbars (4) are located at both ends of the original scaffolding in the width direction b.

7. The adjustable top rail for a scaffold as claimed in claim 6, characterized in that: The outer side surface of the additional vertical pole (2) is welded to the outer side surface of the installation sleeve (201), and the upper end of the plug-in rod (501) is welded to the lower surface of the second cross bar (5).

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