Protective device for concrete construction site

Abstract

The utility model relates to the technical field of building construction, and discloses a protective device for a concrete construction site, the protective device comprises a supporting mold and a protective fence, the protective fence is in insertion fit with the supporting mold, the protective fence is provided with a locking piece, and the locking piece can move relative to the protective fence. The locking pieces are arranged on the supporting molds so that the locking pieces can be provided with locking positions penetrating through the supporting molds and unlocking positions separated from the supporting molds, when a concrete layer of a road is constructed, the supporting molds are firstly placed on the two sides of the road in the width direction and fixed, then concrete is inverted, and after concrete pouring is completed, the supporting molds are locked through the locking pieces. The protective fence and the supporting plate are matched together in an inserted mode, then the locking piece is operated, and then the locking piece moves to the locking position from the unlocking position, so that the connecting stability of the protective fence and the supporting mold is improved. The protective fence is installed on the supporting mold, so that the stability of the protective fence is improved, the situation that the protective fence is prone to toppling over is avoided, and then the stability of the protective device is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of building construction, and specifically relates to a protective device for concrete construction sites. Background Art

[0002] Concrete is abbreviated as concrete, which refers to cement concrete made by mixing cement as a gelling material, sand and stone as aggregates, and water in a certain proportion. It is widely used in infrastructure and house construction. The most representative infrastructure is road construction. The concrete layer, as the base or middle layer of the road, plays a particularly important role and determines the service life of the road.

[0003] When constructing the concrete layer in road construction, it is necessary to first install support molds on both sides of the road width direction, so that after the concrete is inverted at the required construction position, the support molds can block the concrete and form the ends of the concrete into a flat surface; and after the concrete is poured, it is necessary to set up protective devices on both sides of the road width direction to prevent pedestrians or pets from walking on the unsolidified concrete layer, thereby ensuring the molding effect of the concrete layer.

[0004] The existing protective device includes a support and a guardrail arranged on the upper part of the support, and the guardrail is kept upright by the support of the support; however, due to the complex environment of the construction site and the uneven ground on both sides of the concrete layer, the protective device is prone to tilting, which in turn leads to poor stability of the protective device. Utility Model Content

[0005] The present application provides a protective device for use at a concrete construction site, so as to prevent the protective device from tilting easily and increase the stability of the protective device.

[0006] The technical solution adopted in this application is:

[0007] A protective device for a concrete construction site comprises a support form and a guardrail, wherein the guardrail is plugged into and matched with the support form, and the guardrail is provided with a locking piece, which can move relative to the guardrail so that the locking piece has a locking position passing through the support form and an unlocking position separated from the support form.

[0008] By adopting the above technical solution, when constructing the concrete layer of the road, the support formwork is first placed on both sides of the road width direction and fixed, and then the concrete is inverted so that the support formwork blocks and supports the concrete. After the concrete is poured, the guardrail is plugged and matched with the support plate, and then the locking piece is operated, and then the locking piece is moved from the unlocking position to the locking position, that is, the locking piece is inserted into the support formwork to increase the connection stability between the guardrail and the support formwork. The guardrail in the present application is installed on the support formwork, thereby increasing the stability of the guardrail, avoiding the situation where the guardrail is easy to tip over, and thus increasing the stability of the protective device.

[0009] Optionally, the supporting mold includes a template and wing panels respectively located at the bottom and top of the template, the guardrail has a plug-in portion, the plug-in portion has a accommodating cavity with a cavity opening facing one side, and the wing panel located at the top of the template is inserted into the accommodating cavity via the cavity opening of the accommodating cavity.

[0010] By adopting the above technical solution, when installing the guardrail, the mouth of the accommodating cavity is aligned with the wing plate located at the top of the template, and then the guardrail is pushed in the direction close to the wing plate, thereby causing the plug-in portion and the wing plate to move relative to each other, and finally the wing plate located at the top of the template is located in the accommodating cavity, so as to realize the plug-in fit between the guardrail and the supporting mold. At the same time, the cavity wall of the accommodating cavity can support the wing plate, so as to increase the connection stability between the guardrail and the wing plate, thereby further increasing the stability of the protective device.

[0011] Optionally, the locking member includes a locking rod, which is extended in a vertical direction. When the locking rod is in a locking position, the locking rod passes through the plug-in portion and the wing plate located in the accommodating cavity.

[0012] By adopting the above technical solution, after the plug-in part and the wing plate are plugged together, the locking rod is operated to move the locking rod from the unlocking position to the locking position, and then the locking rod is passed through the plug-in part and the wing plate located in the accommodating cavity, so that the locking rod limits the relative movement of the plug-in part and the wing plate, so as to increase the connection stability between the guardrail and the support mold, and further increase the stability of the protective device.

[0013] Optionally, the guardrail further has columns and a mesh located between the columns, wherein one of the columns is provided with a connecting pipe, and the locking rod is passed through the connecting pipe.

[0014] By adopting the above technical solution, when the locking rod is operated, the locking rod and the connecting tube slide relative to each other. Since the locking rod is inserted into the connecting tube, and the connecting tube is arranged on the column, the stability of the locking rod is increased, thereby ensuring the locking effect of the locking rod on the plug-in part and the wing plate, thereby further increasing the stability of the protective device; at the same time, when the locking rod is operated, the connecting tube can also guide the locking rod to reduce the difficulty of operating the locking rod for the staff, thereby improving the efficiency of disassembly and assembly of the guardrail.

[0015] Optionally, the guardrail further comprises a guard plate disposed at the lower portion of the mesh, and the guard plate is connected to the top of the plug-in portion.

[0016] By adopting the above technical solution, since the protective plate is arranged at the lower part of the mesh and at the top of the plug-in part, the stability of the mesh and the plug-in part is increased. At the same time, the protective plate can also prevent smaller animals from passing through the guardrail and entering the unsolidified concrete layer, thereby improving the protective effect of the protective device.

[0017] Optionally, connecting plates are correspondingly provided on both sides of the guardrail, a connecting rod is provided on the connecting plate on one side of the guardrail, and a connecting hole for the connecting rod to pass through is provided on the connecting plate on the other side of the guardrail.

[0018] By adopting the above technical solution, when connecting two guardrails, the connecting rod on one guardrail extends into the connecting hole on the other guardrail to increase the connection stability of the two adjacent guardrails, thereby increasing the protective effect of the guardrails, and at the same time increasing the integrity of the two adjacent guardrails to further increase the anti-tilting performance of the guardrails.

[0019] Optionally, the locking member includes a locking rod capable of being passed through the supporting mold and a fixing rod provided on the locking rod, and when the locking member is in the locking position, the fixing rod can be passed through the connecting rod.

[0020] By adopting the above technical solution, the guardrail is installed on the support mold, and after two adjacent guardrails are connected together, the locking piece is operated to allow the locking rod to pass through the support mold, and at the same time the fixing rod is passed through the connecting rod, so that the fixing rod limits the connecting rod to avoid the connection rod from separating from the connecting hole, thereby further increasing the connection stability of the two adjacent guardrails, and further increasing the integrity of the two adjacent guardrails.

[0021] Optionally, the locking member further includes a limiting rod, and the limiting rod can cooperate with the top stop of the guardrail to keep the locking member in the unlocked position.

[0022] By adopting the above technical solution, when operating the locking piece, the staff first holds the limit rod and then rotates the limit rod to separate the limit rod from the top of the guardrail, and then pushes the limit rod downward to move the locking rod downward, so that the locking rod is inserted into the plug-in portion and the wing plate, and at the same time, the fixing rod is inserted into the connecting rod under the action of the locking rod. Through the setting of the limit rod, the effect of facilitating the staff to operate the locking rod is achieved. At the same time, the limit rod cooperates with the stopper at the top of the guardrail to make the locking rod stay in the unlocked position, so as to achieve the effect of facilitating the staff to assemble the guardrail to the support mold.

[0023] Optionally, a connecting portion is provided on the bottom of the guardrail extending downward, and the supporting mold is provided with a locking portion that is plugged into and cooperates with the connecting portion.

[0024] By adopting the above technical solution, when installing the guardrail on the supporting formwork, first align the connecting portion on the guardrail with the locking portion, and then lower the guardrail, and then make the connecting portion and the locking portion plug and cooperate to complete the installation of the guardrail on the supporting formwork. In the process of installing the guardrail, you only need to move the guardrail up and down, thereby achieving the effect of facilitating the assembly of the guardrail.

[0025] Optionally, the supporting mold includes a mold plate and wing plates respectively located at the bottom and top of the mold plate, and the locking portion is a hole structure provided on the wing plate or the locking portion is a locking tube provided on the wing plate.

[0026] By adopting the above technical solution, when installing the guardrail on the support formwork, first align the connecting portion on the guardrail with the hole structure on the wing plate, and then lower the guardrail, and then allow the connecting portion to pass through the hole structure to achieve the connection between the guardrail and the support formwork.

[0027] When installing the guardrail on the support formwork, first align the connecting portion on the guardrail with the locking tube on the wing plate, then lower the guardrail, and then allow the connecting portion to pass through the locking tube to achieve the connection between the guardrail and the support formwork.

[0028] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0029] 1. The protective device in the present application includes a support form and a guardrail. The guardrail is plugged into the support form. The guardrail is provided with a locking member. The locking member can move relative to the guardrail so that the locking member has a locking position that is inserted into the support form and an unlocking position that is separated from the support form. When constructing the concrete layer of the road, the support form is first placed on both sides of the road width direction and fixed, and then the concrete is inverted so that the support form blocks and supports the concrete. After the concrete is poured, the guardrail is plugged into the support plate, and the locking member is operated to move the locking member from the unlocking position to the locking position, that is, the locking member is inserted into the support form to increase the connection stability between the guardrail and the support form. The guardrail in the present application is installed on the support form, thereby increasing the stability of the guardrail, avoiding the situation where the guardrail is easy to tip over, and thus increasing the stability of the protective device.

[0030] 2. The supporting mold in the present application includes a template and wing plates located at the bottom and top of the template respectively. The guardrail has a plug-in portion, and the plug-in portion has a accommodating cavity with a cavity opening facing one side. The wing plate located at the top of the template is inserted into the accommodating cavity via the cavity opening of the accommodating cavity. When installing the guardrail, the cavity opening of the accommodating cavity is aligned with the wing plate located at the top of the template, and then the guardrail is pushed in the direction close to the wing plate, thereby causing the plug-in portion and the wing plate to move relative to each other, and finally causing the wing plate located at the top of the template to be located in the accommodating cavity, so as to realize the plug-in fit between the guardrail and the supporting mold. At the same time, the cavity wall of the accommodating cavity can support the wing plate, so as to increase the connection stability between the guardrail and the wing plate, thereby further increasing the stability of the protective device.

[0031] 3. The locking member in the present application includes a locking rod, which is extended in the vertical direction. When the locking rod is in the locking position, the locking rod is passed through the plug-in part and the wing plate located in the accommodating cavity, so that the locking rod limits the relative movement of the plug-in part and the wing plate, so as to increase the connection stability between the guardrail and the support mold, thereby further increasing the stability of the protective device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0033] Figure 1 This is a schematic diagram of the structure of the protective device described in one embodiment of the present application;

[0034] Figure 2 This is a schematic structural diagram of the guardrail in one embodiment of the present application, mainly showing that the locking member is in an unlocked position;

[0035] Figure 3This is a schematic structural diagram of the guardrail in one embodiment of the present application, mainly showing that the locking member is in a locked position;

[0036] Figure 4 This is a structural schematic diagram of two guardrails connected to the support formwork in one implementation manner of the present application;

[0037] Figure 5 This is a schematic structural diagram of two guardrails connected together in one implementation manner of the present application;

[0038] Figure 6 for Figure 5 A magnified view of the middle A area;

[0039] Figure 7 This is a schematic structural diagram of the protective device described in another embodiment of the present application.

[0040] Reference numerals:

[0041] 1. Support mold; 11. Template; 12. Wing plate; 121. Locking part; 2. Guardrail; 21. Connecting part; 211. Accommodating cavity; 22. Column; 221. Connecting pipe; 23. Mesh; 231. Connecting plate; 232. Connecting hole; 233. Connecting rod; 24. Guard plate; 241. Connecting part; 3. Locking piece; 31. Locking rod; 32. Fixing rod; 33. Limiting rod. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0044] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0045] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0047] Reference Figures 1 to 7 A protective device for a concrete construction site includes a support form 1 and a guardrail 2. The guardrail 2 is plugged into the support form 1. The guardrail 2 is provided with a locking member 3. The locking member 3 can move relative to the guardrail 2 so that the locking member 3 has a locking position passing through the support form 1 and an unlocking position separated from the support form 1.

[0048] When constructing the concrete layer of the road, the support formwork 1 is first placed on both sides of the road width direction and fixed, and then the concrete is inverted so that the support formwork 1 blocks and supports the concrete. After the concrete is poured, the guardrail 2 is plugged into the support plate, and then the locking member 3 is operated, so that the locking member 3 moves from the unlocking position to the locking position, that is, the locking member 3 is inserted into the support formwork 1 to increase the connection stability between the guardrail 2 and the support formwork 1. The guardrail 2 in the present application is installed on the support formwork 1, thereby increasing the stability of the guardrail 2, avoiding the situation where the guardrail 2 is easy to tip over, and thus increasing the stability of the protective device.

[0049] The present application does not specifically limit the plug-in matching method of the guardrail 2 and the support mold 1, and it can adopt any one of the following embodiments:

[0050] Embodiment 1. In this embodiment, referring to Figures 1 to 6The supporting mold 1 includes a template 11 and wing plates 12 respectively located at the bottom and top of the template 11. The guardrail 2 has a plug-in portion 21. The plug-in portion 21 has a accommodating cavity 211 with a cavity opening facing one side. The wing plate 12 located at the top of the template 11 is inserted into the accommodating cavity 211 through the cavity opening of the accommodating cavity 211.

[0051] It can be understood that the cross-sectional shape of the support mold 1 is C-shaped, and the cross-sectional shape of the plug-in portion 21 is C-shaped, so that the plug-in portion 21 has a receiving cavity 211 with the cavity opening facing one side.

[0052] When installing the guardrail 2, align the mouth of the accommodating cavity 211 with the wing plate 12 located at the top of the template 11, and then push the guardrail 2 in the direction close to the wing plate 12, so that the plug-in portion 21 and the wing plate 12 move relative to each other, and finally the wing plate 12 located at the top of the template 11 is located in the accommodating cavity 211, so as to realize the plug-in fit between the guardrail 2 and the supporting mold 1, and at the same time, the cavity wall of the accommodating cavity 211 can support the wing plate 12, so as to increase the connection stability between the guardrail 2 and the wing plate 12, thereby further increasing the stability of the protective device.

[0053] In a preferred embodiment, referring to Figure 1 , Figure 2 , Figure 3 and Figure 5 The locking member 3 includes a locking rod 31, which is extended in the vertical direction. When the locking rod 31 is in the locking position, the locking rod 31 passes through the plug-in portion 21 and the wing plate 12 located in the accommodating cavity 211, so that the locking rod 31 limits the relative movement of the plug-in portion 21 and the wing plate 12, so as to increase the connection stability between the guardrail 2 and the support mold 1, thereby further increasing the stability of the protective device.

[0054] Further, see Figure 2 , Figure 3 and Figure 5 The guardrail 2 further comprises upright posts 22 and a mesh 23 between the upright posts 22 , wherein one of the upright posts 22 is provided with a connecting pipe 221 , and the locking rod 31 is passed through the connecting pipe 221 .

[0055] That is to say, at least two columns 22 are arranged in parallel and at intervals, the mesh 23 is located between two adjacent columns 22, and the two ends of the mesh 23 are respectively fixedly connected to the columns 22 located on both sides of itself; one of the columns 22 is provided with a connecting tube 221, that is, one locking rod 31 is provided.

[0056] When the locking rod 31 is operated, the locking rod 31 and the connecting tube 221 slide relative to each other. Since the locking rod 31 is inserted into the connecting tube 221, and the connecting tube 221 is arranged on the column 22, the stability of the locking rod 31 is increased, thereby ensuring the locking effect of the locking rod 31 on the plug-in portion 21 and the wing plate 12, thereby further increasing the stability of the protective device; at the same time, when the locking rod 31 is operated, the connecting tube 221 can also guide the locking rod 31 to reduce the difficulty of operating the locking rod 31 for the staff, thereby improving the efficiency of disassembly and assembly of the guardrail 2.

[0057] Better, refer to Figure 2 , Figure 3 and Figure 5 At least two connecting pipes 221 are arranged at intervals along the length direction of the column 22 to increase the guiding points of the locking rod 31, thereby further increasing the stability of the locking rod 31.

[0058] In order to increase the connection stability between the guardrail 2 and the support mold 1, a fastening bolt is provided at one end of the plug-in portion 21 away from the locking rod 31, and the bolt of the fastening bolt is passed through the accommodating cavity 211. When the guardrail 2 is installed on the support mold 1, the fastening bolt is turned so that the screw rod of the fastening bolt is pressed against the wing plate 12 located in the accommodating cavity 211, so as to increase the limiting position of the guardrail 2, prevent the guardrail 2 from rotating around the locking rod 31, and further increase the connection stability between the guardrail 2 and the support mold 1.

[0059] Further, refer to Figure 2 , Figure 3 and Figure 5 The guardrail 2 also has a guard plate 24 disposed at the lower part of the mesh 23 , and the guard plate 24 is connected to the top of the plug-in portion 21 .

[0060] Since the protective plate 24 is arranged at the lower part of the mesh 23 and at the top of the plug-in part 21, the stability of the mesh 23 and the plug-in part 21 is increased. At the same time, the protective plate 24 can also prevent smaller animals from passing through the guardrail 2 and entering the unsolidified concrete layer, thereby improving the protective effect of the protective device.

[0061] In a preferred embodiment, referring to Figures 1 to 6 , connecting pieces 231 are correspondingly provided on both sides of the guardrail 2, a connecting rod 233 is provided on the connecting piece 231 on one side of the guardrail 2, and a connecting hole 232 for the connecting rod 233 to pass through is provided on the connecting piece 231 on the other side of the guardrail 2.

[0062] When connecting two guardrails 2, the connecting rod 233 on one guardrail 2 extends into the connecting hole 232 on the other guardrail 2 to increase the connection stability of the two adjacent guardrails 2, thereby increasing the protective effect of the guardrails 2, and at the same time increasing the integrity of the two adjacent guardrails 2 to further increase the anti-tilting performance of the guardrail 2.

[0063] Better, refer to Figures 1 to 6 At least two connecting pieces 231 are arranged on each column 22 at intervals to increase the connection points between two adjacent guardrails 2, thereby increasing the connection stability between the two adjacent guardrails 2.

[0064] Further, see Figures 1 to 6 The locking member 3 includes a locking rod 31 that can be passed through the supporting mold 1 and a fixing rod 32 arranged on the locking rod 31. When the locking member 3 is in the locking position, the fixing rod 32 can be passed through the connecting rod 233.

[0065] Specifically, the fixing rod 32 is L-shaped, one end of the fixing rod 32 is fixedly connected to the locking rod 31 , and the other end of the fixing rod 32 is extended downward.

[0066] After the guardrail 2 is installed to the support mold 1 and two adjacent guardrails 2 are connected together, the locking piece 3 is operated to allow the locking rod 31 to pass through the support mold 1, and at the same time the fixing rod 32 is passed through the connecting rod 233, so that the fixing rod 32 limits the connecting rod 233 to avoid the connection rod 233 from separating from the connecting hole 232, thereby further increasing the connection stability of the two adjacent guardrails 2, and further increasing the integrity of the two adjacent guardrails 2.

[0067] Better, refer to Figures 1 to 6 The fixing rod 32 is located between two adjacent connecting tubes 221 so that the fixing rod 32 can cooperate with the stopper of the connecting tube 221 to avoid the situation where the locking rod 31 is separated from the connecting tube 221, thereby increasing the connection stability between the locking rod 31 and the connecting tube 221.

[0068] Further, refer to Figures 1 to 6 The locking member 3 also includes a limiting rod 33, which can cooperate with the top stop of the guardrail 2 to keep the locking member 3 in the unlocked position.

[0069] Specifically, the limit rod 33 is fixedly connected to the top end of the locking rod 31 and is arranged perpendicular to the locking rod 31. After the locking rod 31 is pulled upward, the limit rod 33 can be rotated so that the top projection of the limit rod 33 has an overlapping area with the guardrail 2, so that the limit rod 33 can cooperate with the stopper of the guardrail 2 to limit the limit rod 33 to the unlocked position.

[0070] When operating the locking member 3, the staff first holds the limit rod 33 and then rotates the limit rod 33 to separate the limit rod 33 from the top of the guardrail 2, and then pushes the limit rod 33 downward to make the locking rod 31 move downward, so that the locking rod 31 is inserted into the plug-in portion 21 and the wing plate 12, and at the same time, the fixing rod 32 is inserted into the connecting rod 233 under the action of the locking rod 31. Through the setting of the limit rod 33, the effect of facilitating the staff to operate the locking rod 31 is achieved. At the same time, the limit rod 33 cooperates with the stopper at the top of the guardrail 2, so that the locking rod 31 can stay in the unlocked position, so as to achieve the effect of facilitating the staff to assemble the guardrail 2 to the support mold 1.

[0071] Implementation method 2. In this implementation method, refer to Figure 7 A connecting portion 241 is extended downward from the bottom of the guardrail 2, and a locking portion 121 is provided on the support mold 1 to be plugged into and matched with the connecting portion 241.

[0072] When installing the guardrail 2 on the supporting mold 1, first align the connecting portion 241 on the guardrail 2 with the locking portion 121, and then lower the guardrail 2, and then make the connecting portion 241 and the locking portion 121 plug and match to complete the installation of the guardrail 2 on the supporting mold 1. During the installation of the guardrail 2, it is only necessary to move the guardrail 2 up and down, thereby achieving the effect of facilitating the assembly of the guardrail 2.

[0073] The present application does not specifically limit the structure of the connection portion 241. Preferably, the connection portion 241 is a cylindrical structure with a circular cross-section, so as to facilitate the plugging and matching of the connection portion 241 and the locking portion 121. In other embodiments, the connection portion 241 can also be a structure with other cross-section shapes.

[0074] The present application does not specifically limit the structure of the locking portion 121, and the locking portion 121 may adopt any one of the following embodiments:

[0075] Embodiment 1: In this embodiment, the supporting mold 1 includes a mold plate 11 and wing plates 12 respectively located at the bottom and the top of the mold plate 11 , and the locking portion 121 is a hole structure provided on the wing plate 12 .

[0076] When installing the guardrail 2 on the support formwork 1, first align the connection portion 241 on the guardrail 2 with the hole structure on the wing plate 12, and then lower the guardrail 2, and then allow the connection portion 241 to pass through the hole structure to achieve the connection between the guardrail 2 and the support formwork 1.

[0077] In this embodiment, the locking member 3 is a locking rod 31 , which is arranged obliquely and penetrates the wing plate 12 and the connecting portion 241 .

[0078] Embodiment 2, in this embodiment, refer to Figure 7 The supporting mold 1 includes a mold plate 11 and wing plates 12 respectively located at the bottom and top of the mold plate 11 , and the locking portion 121 is a locking tube arranged on the wing plate 12 .

[0079] When installing the guardrail 2 on the support mold 1, first align the connecting portion 241 on the guardrail 2 with the locking tube on the wing plate 12, and then lower the guardrail 2, and then make the connecting portion 241 pass through the locking tube to achieve the connection between the guardrail 2 and the support mold 1.

[0080] In this embodiment, the locking member 3 is a locking rod 31 , and the locking rod 31 passes through the locking tube and the connecting portion 241 .

[0081] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0082] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0083] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A protective device for concrete construction site, characterized in that: The invention comprises a support mold (1) and a guardrail (2), wherein the guardrail (2) is plugged into and matched with the support mold (1), and the guardrail (2) is provided with a locking member (3), wherein the locking member (3) can move relative to the guardrail (2), so that the locking member (3) has a locking position penetrating the support mold (1) and an unlocking position separated from the support mold (1).

2. A protective device for concrete construction site according to claim 1, characterized in that: The support mold (1) comprises a mold plate (11) and wing plates (12) respectively located at the bottom and top of the mold plate (11); the guardrail (2) has a plug-in portion (21); the plug-in portion (21) has a receiving cavity (211) with an opening facing one side; the wing plate (12) located at the top of the mold plate (11) is inserted into the receiving cavity (211) via the opening of the receiving cavity (211).

3. A protective device for concrete construction site according to claim 2, characterized in that: The locking member (3) comprises a locking rod (31) which is extended in a vertical direction. When the locking rod (31) is in a locked position, the locking rod (31) penetrates the plug-in portion (21) and the wing plate (12) located in the accommodating cavity (211).

4. A protective device for concrete construction site according to claim 3, characterized in that: The guardrail (2) further comprises upright posts (22) and a mesh sheet (23) located between the upright posts (22), wherein one of the upright posts (22) is provided with a connecting pipe (221), and the locking rod (31) is passed through the connecting pipe (221).

5. A protective device for concrete construction site according to claim 4, characterized in that: The guardrail (2) further comprises a guard plate (24) arranged at the lower part of the mesh (23), and the guard plate (24) is connected to the top of the plug-in portion (21).

6. A protective device for concrete construction site according to claim 1, characterized in that: Connecting pieces (231) are correspondingly provided on both sides of the guardrail (2); a connecting rod (233) is provided on the connecting piece (231) located on one side of the guardrail (2); and a connecting hole (232) for the connecting rod (233) to pass through is provided on the connecting piece (231) located on the other side of the guardrail (2).

7. A protective device for concrete construction site according to claim 6, characterized in that: The locking member (3) comprises a locking rod (31) that can be inserted into the supporting mold (1) and a fixing rod (32) arranged on the locking rod (31); when the locking member (3) is in the locking position, the fixing rod (32) can be inserted into the connecting rod (233).

8. A protective device for concrete construction site according to claim 7, characterized in that: The locking member (3) further comprises a limiting rod (33), wherein the limiting rod (33) can cooperate with a top stopper of the guardrail (2) so as to keep the locking member (3) at the unlocking position.

9. A protective device for concrete construction site according to claim 1, characterized in that: A connecting portion (241) is provided on the bottom of the guardrail (2) extending downward, and the support mold (1) is provided with a locking portion (121) plug-fitted with the connecting portion (241).

10. A protective device for concrete construction site according to claim 9, characterized in that: The supporting mold (1) comprises a mold plate (11) and wing plates (12) respectively located at the bottom and top of the mold plate (11); the locking portion (121) is a hole structure provided on the wing plate (12) or the locking portion (121) is a locking tube provided on the wing plate (12).

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