CN220955217U - Single-sided steel plate protective wall - Google Patents

Abstract

The utility model discloses a single-sided steel plate protective wall, which is characterized in that: the device comprises at least two mutually parallel limiting pieces, wherein a protective structure is arranged between every two adjacent limiting pieces, and two sides of the protective structure are respectively connected with the limiting pieces at two sides; the side wall of the limiting piece is provided with at least one limiting part facing the adjacent limiting piece, the protection structure comprises at least one steel plate, and the top and the bottom of the steel plate are respectively provided with a folded edge extending towards the back of the steel plate; the two ends of the folded edge are respectively provided with clamping grooves opposite to the limiting parts on two sides, a limiting part on each limiting part is inserted into the clamping groove on the corresponding side of the folded edge, and the back surfaces of the two ends of the steel plate respectively support against the front surfaces of the limiting parts on two sides. The utility model improves the convenience of the installation of the protective wall and is more attractive.

Description

Single-sided steel plate protective wall

Technical Field

The utility model relates to a steel plate protective wall, in particular to a single-sided steel plate protective wall which is mainly applied to the protection of theft prevention, explosion prevention and the like in banks.

Background

Most of the existing walls of banks are of masonry structures, and the surfaces of the existing walls are free of steel plates. In the ' GA38-2021 ' bank security requirement ', in 6.2.1.2, the following description is made on the wall requirement of the cash service area:

1. The cash service area wall body should be connected with the building up and down. The layer height exceeding 3.5 should be greater than or equal to 14mm in nominal diameter for protection, the grid spacing should be less than or equal to 150mm x 15mm and reliable connection to the building body ensures a relative closure of the cash service area.

2. The cash service area wall should be a concrete with a thickness of 160mm or more. The protection is enhanced by adopting one of the following measures on the basis of meeting the requirements:

a) Adopting steel plate protection, and additionally installing a steel plate with the nominal thickness of more than or equal to 4mm on the inner side of the wall body, wherein the strength is Q235 or more;

b) Adopting reinforcement mesh protection, wherein the nominal diameter of the reinforcement is 14mm or more, the grid spacing is 150mm or less, and the reinforcement mesh is reliably connected with the building main body;

c) The reinforcing mesh plastering is adopted for plastering protection, the nominal diameter of the reinforcing steel bars is larger than or equal to 6mm, the grid spacing is smaller than or equal to 150mm, the plastering thickness is larger than or equal to 40mm, and the cement mortar strength is larger than or equal to M5.

In the prior art, when the steel plate is used for protection, the steel plate is generally perforated on the original wall body on site, then the steel plate is connected with the wall body through the expansion bolts, after the connection, the connection part of the expansion bolts and the steel plate is also required to be shielded, and plastering treatment, wall covering treatment or decoration panel adding are generally carried out on the steel plate. In the mode, the time required for site construction is long, a plurality of holes are required to be drilled on the original wall, the site construction period is long, and the space occupation on the site is also large. Or, the steel plate and the bracket are welded by means of welding after the expansion bolts and the bracket are connected on the wall body. Therefore, when the original bank is reformed, the original bank occupies a long time, the normal business handling of the bank is affected, the construction is not convenient enough, and the attractiveness is not good enough.

Disclosure of Invention

The utility model aims to provide a single-sided steel plate protective wall, which not only ensures the protective effect, but also is convenient for installation and site construction, and also ensures the overall aesthetic property by using the structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the single-sided steel plate protective wall comprises at least two limiting pieces which are parallel to each other, wherein a protective structure is arranged between every two adjacent limiting pieces, and two sides of the protective structure are respectively connected with the limiting pieces at two sides;

The side wall of the limiting piece is provided with at least one limiting part facing the adjacent limiting piece, the protection structure comprises at least one steel plate, and the top and the bottom of the steel plate are respectively provided with a folded edge extending towards the back of the steel plate;

The two ends of the folded edge are respectively provided with clamping grooves opposite to the limiting parts on two sides, a limiting part on each limiting part is inserted into the clamping groove on the corresponding side of the folded edge, and the back surfaces of the two ends of the steel plate respectively support against the front surfaces of the limiting parts on two sides.

In the technical scheme, the thickness of the folded edge is equal to the thickness of the steel plate.

In the above technical scheme, the limiting part is perpendicular to the limiting part.

In the above technical scheme, a limit part is arranged on the side wall of at least one side of the limit part, and the limit part is arranged in the middle of the limit part, or the front of the limit part is flush with the front of the limit part.

In the above technical scheme, the side wall of at least one side of the limiting piece is provided with two limiting parts, the two limiting parts are respectively arranged at two ends of the side wall of the limiting piece, the two limiting parts are respectively a first limiting part and a second limiting part, a space is reserved between the first limiting part and the second limiting part, and the space between the first limiting part and the second limiting part is larger than the width of the folded edge;

The front of the first limiting part is flush with the front of the limiting part, the back of the second limiting part is flush with the back of the limiting part, and the limiting part and the two limiting parts form a U-shaped structure.

In the technical scheme, the clamping groove is arranged at the joint of the folded edge and the steel plate;

And/or the first limiting part is inserted into the clamping groove, and the back surface of the side part of the steel plate is propped against the limiting part and the front surface of the first limiting part.

In the above technical scheme, the end face of the folded edge is close to the side wall of the limiting piece, or the end face of the folded edge abuts against the side wall of the limiting piece.

In the above technical scheme, the thickness of the limiting part is matched with the width of the clamping groove, and the end face of the limiting part abuts against the inner end face of the corresponding clamping groove.

In the above technical scheme, the steel plates are at least two, a plurality of steel plates are stacked from bottom to top in sequence, the bottoms of the upper steel plates are propped against the top surfaces of the adjacent lower steel plates, and the bottoms of the bottom folds of the upper steel plates are propped against the top surfaces of the top folds of the adjacent lower steel plates.

In the technical scheme, the limiting piece and the limiting part are made of steel;

And/or, the limiting piece and the limiting part are of an integrated structure;

And/or the side walls of the steel plates in the adjacent protective structures are close to or in contact with each other;

And/or the top and the bottom of the limiting piece are respectively provided with a mounting plate, and a plurality of mounting hole sites are arranged on the mounting plates;

And/or the bottom of the limiting piece passes through the mounting hole site of the mounting plate below through a bolt to be fixedly connected with the ground; the top of the limiting piece passes through the mounting hole position of the mounting plate above the limiting piece through a bolt and is fixedly connected with the top surface;

And/or the thickness of the steel plate and the folded edge is greater than or equal to 5mm.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. According to the utility model, two folds are directly arranged on the back surface of the steel plate, so that the clamping grooves are formed in the side parts of the folds, and the rapid clamping installation of the steel plate and the limiting piece is realized by utilizing the clamping grooves and the plugging of the limiting part on the limiting piece;

2. According to the utility model, the folded edges are arranged at the top and the bottom of the back of the steel plate, so that when adjacent steel plates are stacked and placed, not only are the steel plates supported, but also the direct contact area of the adjacent steel plates can be increased through the folded edges, so that the stability and the firmness of the support are improved, the deformation of the steel plates is prevented, and the firmness and the strength of the installation can be effectively improved;

3. According to the utility model, the steel plate is directly covered on the front surface of the limiting piece, so that the limiting piece can be prevented from being exposed, and the steel plate is more attractive;

4. the thickness of the steel plate and the side is more than or equal to 5mm, and the protection requirement of banks can be met.

Drawings

FIG. 1 is a schematic view of a first embodiment of the present utility model;

Fig. 2 is a schematic structural diagram of the front surface of the mounting position of a panel and two side limiting members in the first embodiment of the present utility model (the two side limiting members and the limiting portions are formed into a U-shaped structure, and the mounting plate is not shown);

FIG. 3 is a rear view of FIG. 2;

FIG. 4 is a schematic cross-sectional view of A-A of FIG. 3;

FIG. 5 is a partial enlarged view at B in FIG. 4;

FIG. 6 is a schematic view of a partial cross-sectional structure of a joint between a middle limiting member and adjacent two side steel plates (mounting plates not shown) in accordance with the first embodiment of the present utility model;

FIG. 7 is a side view of a steel plate according to the first embodiment of the present utility model;

FIG. 8 is a plan view of a steel sheet according to the first embodiment of the present utility model;

FIG. 9 is a schematic cross-sectional view of the connection between the steel plate and the edge-most limiting member (the front surface of the limiting portion is flush with the front surface of the limiting member, and the mounting plate is not shown) in the second embodiment of the present utility model;

FIG. 10 is a schematic cross-sectional view of a joint between a middle limiting member and two adjacent steel plates (the front surface of the limiting member is flush with the front surface of the limiting member, and the mounting plate is not shown);

FIG. 11 is a schematic cross-sectional view of the connection between the steel plate and the edge-most limiting member (the limiting portion is located in the middle of the side wall of the limiting member, and the mounting plate is not shown) in the second embodiment of the present utility model;

Fig. 12 is a schematic cross-sectional view of a joint between a limiting member located at the middle and two adjacent steel plates at two sides in the second embodiment of the present utility model (the limiting member is located at the middle of the side wall of the limiting member, and the mounting plate is not shown).

Wherein: 1. a limiting piece; 2. a protective structure; 3. a limit part; 4. a steel plate; 5. folding edges; 6. a clamping groove; 7. a mounting plate; 8. a bolt; 9. a first limit part; 10. and a second limiting part.

Detailed Description

The utility model is further described below with reference to the accompanying drawings and examples:

Embodiment one: referring to fig. 1 to 8, a single-sided steel plate protective wall comprises at least two limiting pieces 1 which are parallel to each other, wherein a protective structure 2 is arranged between adjacent limiting pieces 1, and two sides of the protective structure 2 are respectively connected with the limiting pieces 1 at two sides;

The side wall of the limiting piece 1 is provided with at least one limiting part 3 facing the adjacent limiting piece, the protection structure comprises at least one steel plate 4, and the top and the bottom of the steel plate 4 are respectively provided with a folded edge 5 extending towards the back of the steel plate;

the two ends of the folded edge 5 are respectively provided with a clamping groove 6 opposite to the two sides of the limiting parts 3, one limiting part 3 on each limiting part 1 is inserted into the clamping groove 6 on the corresponding side of the folded edge 5, and the back surfaces of the two ends of the steel plate 4 are respectively propped against the front surfaces of the two sides of the limiting parts 1.

The thickness of the folded edge is equal to that of the steel plate. The thickness of the steel plate and the folded edge is more than or equal to 5mm. In this example, the thickness of the steel plate and the flange was 5mm. The limiting piece and the limiting part are made of steel.

In this embodiment, the top and the bottom of locating part can be fixed on ground and top surface, when spacing to the steel sheet like this, the draw-in groove cover that directly passes through its hem both sides is on the spacing portion of corresponding locating part for the locating part passes through spacing portion and the draw-in groove joint of hem spacing, thereby the restriction steel sheet back-and-forth movement breaks away from the locating part, realizes the quick installation and the spacing of steel sheet, and the top and the bottom of steel sheet then are spacing or support through the top surface and the ground of building. The steel plates are not required to be connected by bolts or welding, so that the construction speed is high, the efficiency is high, the on-site punching and welding procedures are reduced, the on-site construction difficulty is reduced, and the use of on-site tools is also reduced. Meanwhile, the back surface of the end part of the steel plate is propped against the front surface of the limiting piece, and the limiting piece can be shielded, so that the steel plate is more attractive.

Referring to fig. 1, the top and the bottom of the limiting piece 1 are respectively provided with a mounting plate 7, and a plurality of mounting hole sites are arranged on the mounting plate;

The bottom of the limiting piece 1 passes through the mounting hole position of the mounting plate below through a bolt 8 and is fixedly connected with the ground; the top of the limiting piece 1 passes through the mounting hole position of the mounting plate 7 above through a bolt 8 and is fixedly connected with the top surface.

In this embodiment, when fixed to the locating part, only need to be fixed its top and bottom respectively with the top surface and the bottom surface of building can, compare like this for the mode that in the past directly was fixed to the steel sheet, reduce perforation point and fixed point, reduce the destruction and the damage to original wall body to the setpoint is few, but its intensity and protective capability still can satisfy the requirement.

The limiting part is perpendicular to the limiting part.

Two limiting parts 3 are arranged on the side wall of at least one side of the limiting part 1, the two limiting parts 3 are respectively arranged at two ends of the side wall of the limiting part 1, the two limiting parts 3 are respectively a first limiting part 9 and a second limiting part 10, a space is reserved between the first limiting part 9 and the second limiting part 10, and the space between the first limiting part and the second limiting part is larger than the width of the folded edge;

The front of the first limiting part 9 is flush with the front of the limiting part 1, the back of the second limiting part 10 is flush with the back of the limiting part 1, and the limiting part and the two limiting parts form a U-shaped structure.

In this embodiment, constitute a U type structure between two spacing portions and the locating part, directly adopt U type channel-section steel can, if say that the both sides of locating part have protective structure respectively, then all can set up two spacing portions on the both sides lateral wall of locating part between two sets of protective structure for be an H type structure between locating part and the four spacing portions, adopt the I-steel can promptly, be in the locating part of marginal adopts U type channel-section steel promptly, be in the locating part in the centre adopts the I-steel, directly adopt standard part among the prior art can, need not special customization, can reduce purchase like this, the cost of manufacture. Or, the limiting piece in the middle can be two U-shaped channel steels which are arranged in a back-to-back mode, and the limiting piece can be selected according to actual conditions. The limiting piece and the limiting part are of an integrated structure, so that the strength is good, the integrated cost is low, and the cost is low.

Referring to fig. 5 to 8, the clamping groove 6 is arranged at the joint of the folded edge 5 and the steel plate 4;

The first limiting part 9 is inserted into the clamping groove 6, and the back surface of the side part of the steel plate 4 abuts against the front surfaces of the limiting piece 1 and the first limiting part 9. The clamping groove is formed in the upper side of the folded edge at the joint of the folded edge and the steel plate, the first limiting part is directly inserted into the clamping groove, and if the steel plate is subjected to force towards the front surface of the steel plate, the two sides of the steel plate are limited by the upper and lower folded edges, so that the steel plate cannot face the front surface and is separated from the limiting part. However, in this embodiment, the single-sided steel plate protection wall is installed beside the original building wall, and is directly reinforced beside the original building wall, without modifying the original building wall, and without damaging the original building wall, the single-sided steel plate protection wall is directly installed, where the back surface of the steel plate faces the wall of the original building, and the front surface of the steel plate faces the outside, i.e., the front surface of the steel plate is a visible surface, and is installed beside the original building wall, or the spacing member contacts the original building wall, i.e., the spacing between the steel plates of the original building wall is small, and in general, the steel plate is not subjected to the force of the back surface, mainly the force of the front surface (visible surface of the steel plate, the visible surface is called as visible surface) of the steel plate, and the steel plate has a certain width, and if the middle part of the front surface is stressed, the middle part of the steel plate is deformed inwards, the edge of the steel plate moves inwards and deforms, so that the steel plate and the spacing member are separated (the width of the spacing member is insufficient, and the contact area of the steel plate and the spacing member is insufficient). Therefore, the front surfaces of the first limiting part and the limiting part are flush, and the back surface of the side part of the steel plate is propped against the front surfaces of the first limiting part and the limiting part, so that the contact area of the steel plate and the limiting part can be increased, the compression resistance and the deformation resistance are enhanced, the steel plate and the limiting part are prevented from being separated after being stressed, and the protection capability of the steel plate and the limiting part is ensured.

The end face of the folded edge is close to the side wall of the limiting piece, or the end face of the folded edge abuts against the side wall of the limiting piece. In this embodiment, the joint between the limiting part and the limiting member is provided with a slight bending, so in this embodiment, the end of the folded edge is disposed close to the side wall of the limiting member, and a certain distance is provided between the two parts, so that the two parts are convenient to install.

However, in this embodiment, in order to ensure that the steel plate and the stopper do not shake after being mounted, in the present utility model, the thickness of the stopper is matched with the width of the clamping groove, and the end surface of the stopper abuts against the inner end surface corresponding to the clamping groove. Because both sides of steel sheet all are equipped with locating part and spacing portion, the spacing portion through both sides supports in the draw-in groove of hem both sides, and the interior terminal surface of spacing portion supports on the interior terminal surface of draw-in groove, can restrict the steel sheet through spacing portion and draw-in groove of both sides like this for locating part lateral shifting, and the thickness of spacing portion and the width phase-match of draw-in groove, when the steel sheet wants to vertically remove for the locating part like this, can receive the spacing of draw-in groove and spacing portion again, can not vertically remove and rock, when the steel sheet wants to reciprocate, can receive the spacing of building ground and top surface again, can not reciprocate, thereby realize the spacing of each degree of freedom of steel sheet, guarantee the fastness and the stability of steel sheet installation.

Referring to fig. 1 and 6, the number of the steel plates 4 is at least two, a plurality of steel plates are stacked in sequence from bottom to top, the bottoms of the upper steel plates are abutted against the top surfaces of the adjacent lower steel plates, and the bottom surfaces of the bottom folds of the upper steel plates are abutted against the top surfaces of the top folds of the adjacent lower steel plates.

In this embodiment, the steel plates have different specifications, and the steel plates with corresponding specifications are selected according to the layer height of the building, and in this embodiment, taking the layer height of the building as an example, the steel plates with the height of 60cm are adopted, that is, the protection structure between the adjacent limiting members comprises 5 steel plates, and the 5 steel plates are stacked in sequence from bottom to top.

In this embodiment, when the single-sided steel plate protective wall is installed, take the steel plate protective wall only has 5 limiting parts as an example, then the protective structure has four groups, take 5 steel plates in each group of protective structure, the front of steel plate is forward, the back is backward as an example, then when the single-sided steel plate protective wall is installed, install a limiting part in advance, in order to install from right to left as an example, then right end of steel plate is right against this limiting part, then the draw-in groove of hem right-hand member is right against the limiting part of this limiting part, make the limiting part insert in the draw-in groove of two hem right ends of steel plate, the steel plate is installed from bottom to top, namely install the steel plate below earlier, the hem of bottommost steel plate bottom and bottom is supported subaerial, then place a steel plate above it, the draw-in groove card of its right end is outside of limiting part of right side limiting part again, so circulation, until install 5 steel plates in the protective structure of reorganization, then install 2 nd limiting part right side limiting part, then make the right end of steel plate move right side limiting part, then the draw-in the limiting part is right side 5, then install the limiting part through the draw-in groove of the left side 5, the mode is completed, the top is installed until the top of the steel plate is installed in the left side 5, and the top is installed according to the mode is completed, the top is installed down fixed. In this kind of mode, the hem not only can carry out the joint with the locating part fixedly, simultaneously, when upper and lower adjacent steel sheet piles up and places, not only supports through steel sheet itself, still can increase the area of contact between the adjacent steel sheet through the hem to improve stability and the fastness of supporting, place the steel sheet deformation of below, can effectually improve the intensity of steel sheet, guarantee the fastness and the stability of steel sheet installation. If the middle limiting piece adopts two U-shaped channel steels which are arranged in a back-to-back mode, then when a protective structure is installed firstly, one limiting piece is installed and fixed, then the protective structure is installed and fixed, then the other limiting piece is installed and fixed, so that the two limiting pieces limit the protective structure, then the protective structure is abutted against the fixed limiting piece, then the steps are repeated, the other limiting piece is installed, and then the protective structure and the other limiting piece are installed in sequence, and the cycle is repeated.

In addition, in the utility model, the single-sided steel plate protective wall is directly arranged beside the original building wall, so that the original wall is not required to be modified, and only the single-sided steel plate protective wall is directly arranged beside the original wall, so that the single-sided steel plate protective wall is more convenient to install and is lower in cost and higher in efficiency and attractive appearance than the modification.

The side walls of the steel plates in the adjacent protective structures are close to or contact with each other; the side walls of the transversely adjacent steel plates are in contact with each other or are close to each other, so that the front surface of the steel plate serves as a visible surface (the visible surface can be directly seen), and the whole single-sided steel plate protective wall can serve as a whole, and is good in attractive appearance. The limiting piece is not leaked or exposed little, and the attractive appearance is good. In the utility model, the side walls of the steel plates in the adjacent protective structures are preferably close to each other, and a small gap is formed between the side walls, so that a certain self-deformation space is provided for the material because the material has the performance of thermal expansion and cold contraction. In this embodiment, can be adjacent in the gap between the adjacent steel sheet in the protective structure card income beautiful seam strip, perhaps card strip (all possess elasticity), shelter from the gap, more pleasing to the eye, do not influence the expend with heat and contract with cold deformation of material itself (can not lead to expend with heat and contract with cold to make conditions such as steel sheet protrusion or indent owing to not having the gap). The front surface of the steel plate can be directly plated with a film with a required color, or sprayed with a paint with a required color, or in other modes, so that the aesthetic property of the front surface of the steel plate as a visible surface is ensured.

Embodiment two: referring to fig. 9 to 12, a single-sided steel plate protective wall has a structure substantially similar to that of the first embodiment, except that: the side wall of at least one side of the limiting piece is provided with a limiting part, and the limiting part is arranged in the middle of the limiting piece, or the front surface of the limiting part is flush with the front surface of the limiting piece. In this embodiment, if the front surface of the limiting part and the front surface of the limiting part are flush, and the limiting part is located at the most side part of the protective wall, that is, only one side of the limiting part has the protective structure, only one side of the limiting part has the limiting part, so that the limiting part and the limiting part form an L-shaped structure. If the limiting piece is positioned in the middle of the protective wall, both sides of the limiting piece are provided with protective structures, both sides of the limiting piece are provided with limiting parts, and a T-shaped structure is formed between the two limiting parts and the limiting piece.

If the limiting part is positioned in the middle of the limiting part, when the limiting part is positioned at the most side part of the protective wall, namely, only one side of the limiting part is provided with the protective structure, only one side of the limiting part is provided with the limiting part, and thus, the limiting part and the limiting part form a T-shaped structure. If the limiting piece is positioned in the middle of the protective wall, both sides of the limiting piece are provided with protective structures, both sides of the limiting piece are provided with limiting parts, and a cross structure is formed between the two limiting parts and the limiting piece.

If the limiting part is positioned in the middle of the limiting part, the back surface of the side part of the steel plate only abuts against the front surface of the limiting part, the contact surface between the steel plate and the limiting part is smaller, and the deformation resistance is slightly poor. If the front surface of the limiting part and the front surface of the limiting part are flush, the back surface of the side part of the steel plate can be propped against the front surface of the limiting part and the front surface of the limiting part, and the deformation resistance is better as basically the same as the embodiment.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, for example, the two components can form a mechanical abutting or abutting connection mode through abutting, contact and the like, the two components can be directly connected or hung through the intermediate medium, and the two components can be communicated inside the two components or the interaction relationship of the two components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Claims (10)

1. A single-sided steel plate protective wall is characterized in that: the device comprises at least two mutually parallel limiting pieces, wherein a protective structure is arranged between every two adjacent limiting pieces, and two sides of the protective structure are respectively connected with the limiting pieces at two sides;

The side wall of the limiting piece is provided with at least one limiting part facing the adjacent limiting piece, the protection structure comprises at least one steel plate, and the top and the bottom of the steel plate are respectively provided with a folded edge extending towards the back of the steel plate;

The two ends of the folded edge are respectively provided with clamping grooves opposite to the limiting parts on two sides, a limiting part on each limiting part is inserted into the clamping groove on the corresponding side of the folded edge, and the back surfaces of the two ends of the steel plate respectively support against the front surfaces of the limiting parts on two sides.

2. The single-sided steel plate protective wall according to claim 1, wherein: the thickness of the folded edge is equal to that of the steel plate.

3. The single-sided steel plate protective wall according to claim 1, wherein: the limiting part is perpendicular to the limiting part.

4. A single-sided steel plate protective wall according to claim 1 or 3, characterized in that: the side wall of at least one side of the limiting piece is provided with a limiting part, and the limiting part is arranged in the middle of the limiting piece, or the front surface of the limiting part is flush with the front surface of the limiting piece.

5. A single-sided steel plate protective wall according to claim 1 or 3, characterized in that: the side wall of at least one side of the limiting piece is provided with two limiting parts, the two limiting parts are respectively arranged at two ends of the side wall of the limiting piece, the two limiting parts are a first limiting part and a second limiting part, a space is reserved between the first limiting part and the second limiting part, and the space between the first limiting part and the second limiting part is larger than the width of the folded edge;

The front of the first limiting part is flush with the front of the limiting part, the back of the second limiting part is flush with the back of the limiting part, and the limiting part and the two limiting parts form a U-shaped structure.

6. The single-sided steel plate protective wall according to claim 5, wherein: the clamping groove is arranged at the joint of the folded edge and the steel plate;

And/or the first limiting part is inserted into the clamping groove, and the back surface of the side part of the steel plate is propped against the limiting part and the front surface of the first limiting part.

7. The single-sided steel plate protective wall according to claim 1, wherein: the end face of the folded edge is close to the side wall of the limiting piece, or the end face of the folded edge abuts against the side wall of the limiting piece.

8. The single-sided steel plate protective wall according to claim 1, wherein: the thickness of the limiting part is matched with the width of the clamping groove, and the end face of the limiting part abuts against the inner end face of the corresponding clamping groove.

9. The single-sided steel plate protective wall according to claim 1, wherein: the steel plates are at least two, a plurality of steel plates are stacked from bottom to top in sequence, the bottoms of the upper steel plates are propped against the top surfaces of the adjacent lower steel plates, and the bottom surfaces of the bottom folds of the upper steel plates are propped against the top surfaces of the top folds of the adjacent lower steel plates.

10. The single-sided steel plate protective wall according to claim 1, wherein: the limiting piece and the limiting part are made of steel;

And/or, the limiting piece and the limiting part are of an integrated structure;

And/or the side walls of the steel plates in the adjacent protective structures are close to or in contact with each other;

And/or the top and the bottom of the limiting piece are respectively provided with a mounting plate, and a plurality of mounting hole sites are arranged on the mounting plates;

And/or the bottom of the limiting piece passes through the mounting hole site of the mounting plate below through a bolt to be fixedly connected with the ground; the top of the limiting piece passes through the mounting hole position of the mounting plate above the limiting piece through a bolt and is fixedly connected with the top surface;

And/or the thickness of the steel plate and the folded edge is greater than or equal to 5mm.