CN221742266U - Protective fence for construction site - Google Patents

Abstract

The utility model discloses a protective fence for a construction site, and relates to the technical field of construction site equipment. The utility model comprises at least two upright posts which are vertically arranged and a protective net which is vertically arranged between two adjacent upright posts; the lower end of the upright post is horizontally fixed with a supporting disc; a plurality of arc grooves are uniformly distributed on the edge of the supporting disc; a plurality of positioning strips are radially arranged below the supporting disc; one end of the positioning strip is provided with a sliding part; the sliding part is connected in the arc-shaped groove in a sliding way; the upper surface of the positioning strip is provided with a strip-shaped hole along the length direction; the side wall of the upright post is provided with a bearing block, a guide block and a limiting piece in sequence from bottom to top; the bearing block is abutted against the lower edge of the protective net; the side edges of the protective net are in sliding fit with the inner sides of the guide blocks; the limiting piece is abutted against the upper edge of the protective net. The protective fence is reasonable in structural design and convenient to use, and the installation efficiency of the protective fence is effectively improved.

Description

Protective fencing for construction sites

Technical Field

The utility model belongs to the technical field of construction site equipment, in particular to a protective fence used in a construction site.

Background Art

On construction sites, temporary protective fences are usually needed to isolate the construction site from the outside world, thereby restricting the entry and exit of personnel, machinery and vehicles. At the same time, it can also serve as a warning and protection for construction workers. For example, foundation pit protective fences are required by the state to be installed on construction sites. They can not only effectively prevent isolated vehicles and personnel from falling into the foundation pit, but also prevent construction workers in the foundation pit from accidents due to falling objects. Therefore, protective fences are essential protective facilities for preventing personal injury at construction sites.

As shown in Figure 1 of the specification, the protective fence in the prior art usually includes at least two vertically arranged columns (01) and a protective net (02) arranged between two adjacent columns (01), a support plate (03) is horizontally welded to the lower end of the column (01), and four mounting holes (04) for accommodating expansion bolts are opened on the support plate (03), and a hanging ear (05) is welded to the side wall of the column (01), and the hanging ear (05) is connected to the side edge of the protective net (02) by bolts; although the above-mentioned protective fence is structurally It is relatively simple, but still has the following disadvantages: since the mounting hole (04) on the support plate (03) is fixed, when the hole is drilled on the ground, if the hole position is deviated, the expansion bolt cannot accurately pass through the mounting hole (04) and be inserted into the ground, thereby affecting the installation efficiency of the protective fence; and since the hanging ear (05) and the side edge of the protective net (02) are connected by bolts, there may be a problem of bolt loss after the hanging ear (05) and the protective net (02) are disassembled, thereby affecting the reuse of the protective fence. Therefore, it is urgent to study a protective fence for construction sites to solve the above problems.

Utility Model Content

The utility model provides a protective fence for a construction site, and its purpose is to solve the technical problems raised in the above background technology.

In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

The utility model is a protective fence for a construction site, comprising at least two vertically arranged columns and a protective net vertically arranged between two adjacent columns; a support plate is horizontally fixed to the lower end of the column; a plurality of arc-shaped grooves are evenly distributed on the edge of the support plate; a plurality of positioning strips corresponding to the arc-shaped grooves are radially arranged below the support plate; one end of the positioning strip has a sliding portion; the sliding portion is slidably connected in the arc-shaped groove; a strip-shaped hole for accommodating expansion bolts is opened on the upper surface of the positioning strip along the length direction; a bearing block, a guide block and a limit piece are sequentially installed on the side walls of the column from bottom to top; the bearing block conflicts with the lower edge of the protective net; the horizontal cross-section of the guide block is a U-shaped structure; the side edges of the protective net are slidably matched with the inner side of the guide block; the limit piece conflicts with the upper edge of the protective net.

As a preferred technical solution of the utility model, the lower end of the column is inserted and arranged on the support plate; the lower end surface of the column is flush with the lower surface of the positioning strip.

As a preferred technical solution of the utility model, the sliding part is in a “┐”-shaped structure; the vertical section of the sliding part slides and penetrates into the arc groove; and the horizontal section of the sliding part is arranged above the support plate.

As a preferred technical solution of the utility model, the bearing block is in a "┐"-shaped structure; the vertical section of the bearing block is fixed on the side wall of the column; the horizontal section of the bearing block is in conflict with the lower edge of the protective net; a first rib is fixed to one side of the vertical section of the bearing block; and the upper edge of the first rib is fixed to the lower surface of the horizontal section of the bearing block.

As a preferred technical solution of the utility model, the limiting member includes an extension column vertically fixed to the upper end surface of the column; a sliding sleeve is provided on the extension column; a limiting flange is horizontally fixed on the edge of the lower port of the sliding sleeve; the lower surface of the limiting flange is in conflict with the upper edge of the protective net.

As a preferred technical solution of the utility model, the extension column is a pipe fitting; a tensioning spring is vertically arranged on the inner side of the extension column; the lower end of the tensioning spring is fixed to the upper end surface of the column; the upper end of the tensioning spring extends out of the extension column and is fixed to the upper end of the sliding sleeve.

As a preferred technical solution of the utility model, a second convex rib is fixed to the upper surface of the limiting flange; and one side of the second convex rib is fixed to the side wall of the sliding sleeve.

The utility model has the following beneficial effects:

After the utility model opens a hole on the ground, the positioning strip is rotated to realize the sliding of the sliding part in the arc groove, so that the position of the strip hole is made to correspond to the position of the hole on the ground, and then the expansion bolt is passed through the strip hole and driven into the hole on the ground, so that the column is installed on the ground, and then the side edge of the protective net is slid through the inner side of the guide block, and the bearing block is made to conflict with the lower edge of the protective net, and finally the limit piece is made to conflict with the upper edge of the protective net, so as to realize the installation of the protective fence. It can not only ensure that the column can be installed even after a slight deviation occurs in the position of the hole on the ground, but also effectively improve the installation efficiency of the protective fence, and has a high market application value.

Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a protective fence used in a construction site in the prior art.

FIG. 2 is a schematic structural diagram of a protective fence for a construction site according to the utility model.

FIG. 3 is a schematic diagram of the structure of the connection between the column and the support plate of the utility model.

FIG. 4 is a schematic diagram of the structure of the connection between the support plate and the positioning strip of the present invention.

FIG. 5 is a schematic structural diagram of the position limiting member of the present invention installed on a column.

FIG. 6 is a schematic structural diagram of a position limiting member of the present invention.

In the accompanying drawings, the components represented by the reference numerals are listed as follows:

01-column, 02-protective net, 03-support plate, 04-mounting hole, 05-hanging ear, 1-column, 2-protective net, 3-support plate, 4-positioning bar, 5-bearing block, 6-guide block, 7-limiting piece, 301-arc groove, 401-sliding part, 402-bar hole, 501-first convex rib, 701-extension column, 702-sliding sleeve, 703-limiting flange, 704-tensioning spring, 705-second convex rib.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Embodiment 1:

Please refer to Figures 2-5, the utility model is a protective fence for a construction site, comprising at least two vertically arranged columns 1 and a protective net 2 vertically arranged between two adjacent columns 1; a support plate 3 is horizontally welded to the lower end of the column 1; a plurality of arc grooves 301 are evenly distributed on the edge of the support plate 3; the arc groove 301 is coaxially arranged with the support plate 3; a plurality of positioning strips 4 corresponding to the arc grooves 301 are radially arranged below the support plate 3; a sliding portion 401 is integrally formed at one end of the positioning strip 4 ; The sliding part 401 is slidably connected in the arc groove 301; the upper surface of the positioning strip 4 is provided with a strip hole 402 for accommodating the expansion bolt along the length direction; the side wall of the column 1 is successively equipped with a bearing block 5, a guide block 6 and a limiter 7 from bottom to top; the bearing block 5 is in conflict with the lower edge of the protective net 2; the horizontal cross-section of the guide block 6 is a U-shaped structure; the guide block 6 is welded to the side wall of the column 1; the side edge of the protective net 2 is slidably matched with the inner side of the guide block 6; the limiter 7 is in conflict with the upper edge of the protective net 2. When in use, after drilling a hole on the ground, the positioning bar 4 is rotated to make the sliding part 401 slide in the arc groove 301, so that the position of the strip hole 402 corresponds to the position of the hole on the ground, and then the expansion bolt is passed through the strip hole 402 and driven into the hole on the ground, so that the column 1 is installed on the ground, and then the side edge of the protective net 2 is slid through the inner side of the guide block 6, and the bearing block 5 is made to conflict with the lower edge of the protective net 2, and finally the limit piece 7 is made to conflict with the upper edge of the protective net 2, so as to realize the installation of the protective fence, which not only ensures that the column 1 can be installed even after a slight deviation in the position of the hole on the ground, but also effectively improves the installation efficiency of the protective fence.

As shown in FIG3 , the lower end of the column 1 is inserted and arranged on the support plate 3; the lower end surface of the column 1 is flush with the lower surface of the positioning strip 4. When in use, by designing the lower end surface of the column 1 to be flush with the lower surface of the positioning strip 4, the support stability of the column 1 can be further ensured.

As shown in Fig. 3-4, the sliding part 401 is in a "┐"-shaped structure; the vertical section of the sliding part 401 slides and penetrates in the arc groove 301; the horizontal section of the sliding part 401 is arranged above the support plate 3. When in use, the vertical section of the sliding part 401 is designed to slide and penetrate in the arc groove 301, and the horizontal section of the sliding part 401 is designed to be arranged above the support plate 3, thereby effectively ensuring the sliding effect of the positioning bar 4 on the support plate 3.

As shown in FIG3 , the bearing block 5 is in a “┐”-shaped structure; the vertical section of the bearing block 5 is welded to the side wall of the column 1; the horizontal section of the bearing block 5 is in conflict with the lower edge of the protective net 2; a first convex rib 501 is welded to a side surface of the vertical section of the bearing block 5; and the upper edge of the first convex rib 501 is welded to the lower surface of the horizontal section of the bearing block 5. When in use, by designing the bearing block 5 to be in a “┐”-shaped structure, and making the horizontal section of the bearing block 5 conflict with the lower edge of the protective net 2, and then welding the first convex rib 501 to a side surface of the vertical section of the bearing block 5, and the upper edge of the first convex rib 501 is welded to the lower surface of the horizontal section of the bearing block 5, the supporting effect on the protective net 2 can be effectively improved.

Embodiment 2:

On the basis of Example 1, as shown in Figures 5-6, the limiting member 7 includes an extension column 701 vertically welded to the upper end surface of the column 1; a sliding sleeve 702 is provided on the extension column 701; a limiting flange 703 is horizontally welded to the edge of the lower port of the sliding sleeve 702; the lower surface of the limiting flange 703 is in conflict with the upper edge of the protective net 2; the extension column 701 is a pipe fitting; a tensioning spring 704 is vertically provided on the inner side of the extension column 701; the lower end of the tensioning spring 704 is welded to the upper end surface of the column 1; the upper end of the tensioning spring 704 extends out of the extension column 701 and is welded to the upper end of the sliding sleeve 702. During use, when the protective net 2 needs to be installed on the column 1, first move the sliding sleeve 702 upward and separate the sliding sleeve 702 from the extension column 701, then rotate the sliding sleeve 702 horizontally 90° and reinstall the sliding sleeve 702 on the extension column 701, so that the limiting flange 703 is misaligned relative to the guide block 6, and then the protective net 2 is passed through the guide block 6 and installed on the column 1, and then the sliding sleeve 702 is reset, and then the tension of the tension spring 704 is achieved. The lower surface of the limiting flange 7 is tightly abutted against the upper edge of the protective net 2, thereby realizing the positioning of the protective net 2, which can avoid the problem of easy loss of bolts caused by the bolt connection between the protective net 2 and the column 1 in the prior art, and effectively ensure the use effect of the protective fence.

As shown in Fig. 5, the upper surface of the limiting flange 703 is welded with a second convex rib 705; one side of the second convex rib 705 is welded to the side wall of the sliding sleeve 702. When in use, by designing the upper surface of the limiting flange 703 to be welded with the second convex rib 705, and welding one side of the second convex rib 705 to the side wall of the sliding sleeve 702, the structural strength of the limiting flange 703 can be effectively improved.

The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims (7)

1. The protective fence for the construction site is characterized by comprising at least two upright posts (1) which are vertically arranged and a protective net (2) which is vertically arranged between two adjacent upright posts (1); a supporting disc (3) is horizontally fixed at the lower end of the upright post (1); a plurality of arc grooves (301) are uniformly distributed on the edge of the supporting disc (3);

A plurality of positioning strips (4) corresponding to the arc grooves (301) are radially arranged below the supporting disc (3); one end of the positioning strip (4) is provided with a sliding part (401); the sliding part (401) is connected in the arc-shaped groove (301) in a sliding way; the upper surface of the positioning strip (4) is provided with a strip-shaped hole (402) for accommodating an expansion bolt along the length direction;

The side wall of the upright post (1) is provided with a bearing block (5), a guide block (6) and a limiting piece (7) in sequence from bottom to top; the bearing blocks (5) are in contact with the lower edges of the protective net (2); the horizontal cross section of the guide block (6) is of a U-shaped structure; the side edges of the protective net (2) are in sliding fit with the inner sides of the guide blocks (6); the limiting piece (7) is abutted against the upper edge of the protective net (2).

2. The protective fence for a construction site according to claim 1, characterized in that the lower end of the upright (1) is arranged on a supporting disc (3) in a penetrating manner; the lower end face of the upright post (1) is flush with the lower surface of the positioning strip (4).

3. Guard rail for a construction site according to claim 1 or 2, characterized in that the sliding part (401) is of a "l" type structure; the vertical section of the sliding part (401) is inserted into the arc-shaped groove (301) in a sliding way; the horizontal section of the sliding part (401) is arranged above the supporting disc (3).

4. A protective fence for a construction site according to claim 3, characterized in that the bearing blocks (5) are of a "-" type construction; the vertical section of the bearing block (5) is fixed on the side wall of the upright post (1); the horizontal section of the bearing block (5) is abutted against the lower edge of the protective net (2); a first convex rib (501) is fixed on one side surface of the vertical section of the bearing block (5); the upper edge of the first convex rib (501) is fixed on the lower surface of the horizontal section of the bearing block (5).

5. The protective fence for a construction site according to claim 1, characterized in that the limit piece (7) comprises an extension column (701) vertically fixed to the upper end face of the upright (1); a sliding sleeve (702) is sleeved on the extending column (701) in a sliding way; a limit flanging (703) is horizontally fixed on the edge of the lower port of the sliding sleeve (702); the lower surface of the limit flanging (703) is abutted against the upper edge of the protective net (2).

6. The protective fence for a construction site of claim 5, characterized in that the extension post (701) is a tube; a tensioning spring (704) is vertically arranged on the inner side of the extension column (701); the lower end of the tensioning spring (704) is fixed on the upper end face of the upright post (1); the upper end of the tensioning spring (704) extends out of the extension column (701) and is fixed on the upper end of the sliding sleeve (702).

7. The protective fence for a construction site according to claim 5 or 6, characterized in that the upper surface of the limit flange (703) is fixed with a second bead (705); one side edge of the second convex rib (705) is fixed on the side wall of the sliding sleeve (702).