Protective net for municipal engineering construction

Abstract

The utility model provides a protective net for municipal engineering construction, which comprises a plurality of protective units connected in sequence, and every two adjacent protective units are detachably connected. Each protection unit comprises a net body and a protection frame, the protection frame comprises a first mounting frame, a second mounting frame and a bottom plate, and the first mounting frame and the second mounting frame are arranged on the bottom plate in parallel and form a sliding groove; the net body is detachably installed in the sliding groove and is configured to be capable of being lifted out of the top of the protection frame. Every two adjacent protection frames are detachably connected. And the moving assembly is arranged on the bottom plate. The net body is detachably mounted between the first mounting frame and the second mounting frame, and the net body can be maintained by detaching the net body between the first mounting frame and the second mounting frame, so that the maintenance is convenient and efficient; every two adjacent protection frames are detachably connected, so that the protection frames are convenient to transport, time and labor are saved, and the protection frames are not prone to damage in the transportation process. The moving assembly enables the protection frame to be conveniently moved to the installation position, and the transportation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction equipment, in particular to a protective net for municipal engineering construction. Background Art

[0002] The use of construction engineering protection nets in construction sites is very common. Construction engineering protection nets include not only high-altitude protection nets to prevent people from falling, but also ground protection nets to enclose the construction area of ​​the building. They can not only prevent people from entering the construction area and causing dangerous accidents, but also can be used to prevent dust and soil at the construction site, which is conducive to green and environmentally friendly construction.

[0003] At present, some traditional ground protection nets are fixed with iron frames, bamboo frames or wooden frames. The laying process is cumbersome and it is inconvenient to retract the dustproof net. When a damaged protection net needs to be repaired in a certain place, the entire protection net can only be removed, which is more laborious to repair. There are also some construction sites that use ground protection nets that are composed of multiple protection net units. The protection net units need to be tied with straps to form a protection net that can enclose the construction site as needed. When the damaged protection net needs to be repaired, most of the protection net units need to be removed, which affects the overall stability of the protection net. At the same time, the protection net units can only be installed by manual handling, which makes the protection net installation process cumbersome and the installation efficiency is not high enough. Utility Model Content

[0004] One of the purposes of the present utility model is to provide a protective net for municipal engineering construction, so as to solve the problems in the prior art of complicated maintenance or replacement of the protective net and low disassembly and assembly efficiency, so as to make the installation and maintenance of the protective net quick and convenient.

[0005] In order to achieve the above purpose, the technical solutions adopted by this utility model are as follows:

[0006] A protective net for municipal engineering construction, comprising a plurality of sequentially connected protective units, wherein two adjacent protective units are detachably connected; each protective unit comprises:

[0007] A mesh body and a protective frame, the protective frame comprising a first mounting frame, a second mounting frame, and a bottom plate; the bottoms of the first mounting frame and the second mounting frame are mounted on the bottom plate, the first mounting frame and the second mounting frame are arranged parallel to each other, and a slide groove is formed between the first mounting frame and the second mounting frame; the mesh body is detachably mounted in the slide groove and is configured to be removable from the top of the protective frame; two adjacent protective frames are detachably connected;

[0008] A moving component is installed on the base plate and is configured to drive the protective frame to move.

[0009] According to the above technical means, the net body can be detachably installed between the first installation frame and the second installation frame. When the net body needs to be maintained or replaced, it is only necessary to remove the net body from between the first installation frame and the second installation frame, so that the maintenance of the net body is convenient and efficient; the two adjacent protective frames are detachably connected, which can make the protective frames easy to transport, save time and effort, and are not easily damaged during transportation; the moving component can drive the protective frame to move conveniently to the installation position, eliminating manual handling and improving transportation efficiency.

[0010] At the same time, the utility model has a simple structure, does not require complicated production processes, and is simple and quick to install, thereby improving the installation efficiency of the protective net, reducing labor costs, and being economical.

[0011] Furthermore, the first mounting frame includes a first frame body and a first extrusion block, and the first extrusion block is installed on the first frame body; the second mounting frame includes a second frame body, an extrusion bar and a second extrusion block, the extrusion bar is installed on the inner side of the second frame body and extends along the border of the second frame body, and the second extrusion block is installed at the end of the extrusion bar; the first extrusion block and the second extrusion block are configured to cooperate to clamp the corners of the mesh body; the first frame body and the extrusion bar are configured to cooperate to be clamped to the mesh body.

[0012] According to the above technical means, the first frame and the extrusion strip are pressed against both sides of the mesh body, and can clamp the mesh body, fix the mesh body between the first frame and the second frame, and make the mesh body taut; the first extrusion block and the second extrusion block are respectively pressed against both sides of the corners of the mesh body, and while fixing the corners of the mesh body, they can also protect the corners of the mesh body and prevent the corners of the mesh body from warping, thereby increasing the service life of the mesh body.

[0013] Furthermore, two extrusion bars are provided on the second frame to respectively squeeze the opposite sides of the net body; the second mounting frame also includes a guard bar, and both ends of the guard bar are respectively installed on the two extrusion bars to prevent the net body from being deformed or damaged by external force.

[0014] According to the above technical means, the two extrusion bars act on both sides of the net body respectively, providing a more balanced and stable clamping force, which helps to prevent the net body from being twisted or deformed due to uneven force; the guard bar protects the net body from external impact or pressure.

[0015] The durability and stability of the mesh body are increased, thereby extending the service life of the mesh body.

[0016] Furthermore, the protection frame further includes a top baffle, which is detachably mounted on the top of the first frame body and / or the second frame body to prevent the net from falling off from the top of the protection frame.

[0017] According to the above technical means, the top baffle provides additional support for the net body, while enhancing the structural integrity of the protective frame and ensuring the installation stability of the net body.

[0018] Furthermore, the top baffle includes a plate body and a limit block, the limit block is installed on the plate body and arranged along the length direction of the plate body; the limit block is configured so that when the plate body is installed on the first frame body and / or the second frame body, the limit block is located in the slide groove.

[0019] According to the above technical means, the limit block can limit the position of the plate body installed on the first frame body and the second frame body, so that the plate body can be quickly positioned during installation without complicated adjustments, thereby improving installation efficiency.

[0020] Furthermore, the protective frame also includes a first connecting member and a second connecting member, and the first connecting member and the second connecting member are respectively arranged on opposite sides of the first frame body and / or the second frame body; the first connecting member is configured to be able to connect to the second connecting member of an adjacent protective frame; the second connecting member is configured to be able to connect to the first connecting member of another adjacent protective frame, so that the two adjacent protective frames can be connected to each other.

[0021] According to the above technical means, the first connecting member and the second connecting member cooperate with each other so that the two adjacent protective frames can be accurately connected without complicated installation steps or tools, which is convenient for users to quickly assemble or disassemble the protective frames according to actual needs, thereby improving work efficiency and improving the overall stability of the two adjacent protective frames.

[0022] Furthermore, the moving assembly includes a positioning member, a universal wheel and a lifting assembly, the positioning member is arranged on the base plate, and the universal wheel is installed on the lifting assembly; the lifting assembly is installed on the positioning member and is configured to be able to move in the vertical direction to drive the universal wheel to move in the vertical direction.

[0023] According to the above technical means, the universal wheels enable the protective frame to be moved conveniently without manual handling, thereby improving the flexibility of the installation of the protective frame. The lifting assembly enables the universal wheels to extend when the protective frame needs to be moved so as to contact the ground for movement, and to be retracted when the protective frame does not need to be moved, thereby avoiding the position of the protective frame from being offset and improving the applicability of the installation of the protective frame.

[0024] Furthermore, the lifting assembly includes a lifting rod and a mounting plate, a mounting hole is formed on the positioning member, the lifting rod is installed in the mounting hole, and is configured to be able to move in the vertical direction; the mounting plate is installed at one end of the lifting rod, and the universal wheel is installed on the mounting plate.

[0025] According to the above technical means, the lifting rod can move in the vertical direction, so that the mounting plate and the universal wheels installed on the mounting plate can be extended when the protective frame needs to be moved, so as to move the protective frame. The universal wheels can be retracted when the protective frame moves to the installation position, so that the protective frame is fixed in the installation position.

[0026] Furthermore, a limiting rod is formed on the mounting plate, a limiting hole is formed on the positioning member, and the limiting rod is inserted into the limiting hole.

[0027] According to the above technical means, the limiting rod and the limiting hole cooperate with each other. When the lifting rod drives the universal wheel to move in the vertical direction, the position of the mounting plate will not be offset, and at the same time, it can prevent the mounting plate from falling off or being damaged when subjected to external force.

[0028] Furthermore, a fixing hole is formed on the positioning member, and a fixing block is provided in the fixing hole. The fixing block is configured to be able to move in the fixing hole along the vertical direction to fix the protective frame to the ground or release the fixation.

[0029] According to the above technical means, during the movement of the protective frame, the fixing block is retracted to facilitate the movement of the protective frame. When the protective frame moves to the installation position, the fixing block moves toward the ground in the fixing hole and rests on the ground, providing stable support for fixing the protective frame on the ground, enhancing the installation stability of the protective frame, and improving the flexibility of the installation of the protective frame.

[0030] The beneficial effects of the present invention are:

[0031] 1. The net body of the present invention can be detachably installed between the first installation frame and the second installation frame. When the net body needs to be maintained or replaced, it is only necessary to remove the net body from between the first installation frame and the second installation frame, so that the maintenance of the net body is convenient and efficient; the two adjacent protective frames can be detachably connected, which can make the protective frames easy to transport, save time and effort, and are not easily damaged during transportation; the moving assembly can drive the protective frame to move conveniently to the installation position, eliminating manual handling and improving transportation efficiency.

[0032] 2. The utility model has a simple structure, does not require complicated production processes, and is easy and quick to install, which improves the installation efficiency of the protective net, reduces labor costs, and is economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 It is a structural diagram of the protection unit of the utility model;

[0035] Figure 2 It is a side view of the protection unit of the utility model;

[0036] Figure 3 This utility model Figure 2 Cross-sectional view of section AA;

[0037] Figure 4 This utility model Figure 3 A magnified view of the structure at point B in the middle;

[0038] Figure 5 This utility model Figure 3 Enlarged view of the structure at point C in the middle.

[0039] in,

[0040] 100, mesh body; 200, protective frame; 210, first installation frame; 211, first frame body; 212, first extrusion block; 213, reinforcing rod; 220, second installation frame; 221, second frame body; 222, extrusion strip; 223, second extrusion block; 224, guard rod; 230, bottom plate; 240, top baffle; 241, plate body; 242, limit block; 250, first connecting member; 260, second connecting member; 270, slide; 300, moving component; 310, positioning member; 311, fixing hole; 312, fixing block; 320, universal wheel; 331, lifting rod; 332, mounting plate; 3321, limit rod. DETAILED DESCRIPTION

[0041] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. The accompanying drawings are for illustrative purposes only and are not to be construed as limiting the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for the purpose of illustrating the present invention and are not intended to limit the scope of protection of the present invention.

[0042] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0043] This embodiment provides Figures 1 to 5 A protective net for municipal engineering construction shown in FIG. 1 includes a plurality of protective units connected in sequence, wherein two adjacent protective units are detachably connected; each protective unit includes:

[0044] The net body 100 and the protective frame 200 include a first mounting frame 210, a second mounting frame 220, and a bottom plate 230. The bottoms of the first mounting frame 210 and the second mounting frame 220 are mounted on the bottom plate 230. The first mounting frame 210 and the second mounting frame 220 are arranged parallel to each other, and a slide groove 270 is formed between the first mounting frame 210 and the second mounting frame 220. The net body 100 is detachably mounted in the slide groove 270 and is configured to be removable from the top of the protective frame 200. Two adjacent protective frames 200 are detachably connected.

[0045] The moving assembly 300 is installed on the base plate 230 and is configured to drive the protective frame 200 to move.

[0046] When maintenance is required at the construction site, the protective frame 200 is moved to the installation position through the moving assembly 300, and then the net body 100 is slid from the slide groove 270 into between the first installation frame 210 and the second installation frame 220, and then the two adjacent protective frames 200 are fixedly connected; when maintenance or replacement of the net body 100 is required, the net body 100 only needs to be lifted out from the top of the protective frame 200 to maintain or replace the net body 100.

[0047] In this embodiment, the net body 100 can be detachably installed between the first installation frame 210 and the second installation frame 220. When the net body 100 needs to be maintained or replaced, it is only necessary to remove the net body 100 from between the first installation frame 210 and the second installation frame 220, so that the maintenance of the net body 100 is convenient and efficient; the two adjacent protective frames 200 are detachably connected, which enables the protective frame 200 to be conveniently transported, saving time and effort, and not easily damaged during transportation; the moving component 300 enables the protective frame 200 to be conveniently moved to the installation position, eliminating manual handling and improving transportation efficiency.

[0048] At the same time, the protection unit in this embodiment has a simple structure, does not require complicated production processes, and is easy and quick to install, which improves the installation efficiency of the protection net, reduces labor costs, and is economical.

[0049] like Figure 1 As shown, in this embodiment, the first mounting frame 210 includes a first frame body 211 and a first extrusion block 212, and the first extrusion block 212 is installed on the first frame body 211; the second mounting frame 220 includes a second frame body 221, an extrusion bar 222 and a second extrusion block 223, the extrusion bar 222 is installed on the inner side of the second frame body 221 and extends along the border of the second frame body 221, and the second extrusion block 223 is installed at the end of the extrusion bar 222; the first extrusion block 212 and the second extrusion block 223 are configured to cooperate to clamp the corners of the mesh body 100; the first frame body 211 and the extrusion bar 222 are configured to cooperate to be clamped to the mesh body 100. The first frame 211 and the extrusion bar 222 are pressed against both sides of the mesh body 100, which can clamp the mesh body 100, fix the mesh body 100 between the first frame 211 and the second frame 221, and make the mesh body 100 taut. The first extrusion block 212 and the second extrusion block 223 are respectively pressed against both sides of the corners of the mesh body 100. While fixing the corners of the mesh body 100, they can also protect the corners of the mesh body 100 and prevent the corners of the mesh body 100 from warping, thereby increasing the service life of the mesh body 100.

[0050] When installing the net body 100 on the protective frame 200, slide the net body 100 between the first installation frame 210 and the second installation frame 220, then hold the extrusion bar 222 equipped with the second extrusion block 223 against the side of the net body 100, and then fix the extrusion bar 222 on the second frame 221, so that the net body 100 can be fixed between the first installation frame 210 and the second installation frame 220.

[0051] Preferably, if Figure 1 As shown, in this embodiment, a reinforcing rod 213 is further provided on the first frame body 211 . The reinforcing rod 213 can increase the strength of the first frame body 211 and increase the service life of the first frame body 211 .

[0052] like Figure 1 As shown, in this embodiment, two extrusion bars 222 are provided on the second frame 221 to respectively squeeze the opposite sides of the net body 100. The second mounting frame 220 also includes a guard bar 224, the ends of which are respectively mounted on the two extrusion bars 222 to prevent the net body 100 from being deformed or damaged by external forces. The two extrusion bars 222 act on both sides of the net body 100, providing a more balanced and stable clamping force, helping to prevent the net body 100 from twisting or deforming due to uneven force. The guard bar 224 protects the net body 100 from external impact or pressure, increasing the durability and stability of the net body 100, thereby extending the service life of the net body 100.

[0053] Preferably, in this embodiment, the mesh body 100 is rectangular, four first extrusion blocks 212 are provided on the first frame body 211, and second extrusion blocks 223 are provided at both ends of each extrusion bar 222. The four first extrusion blocks 212 and the four second extrusion blocks 223 are respectively supported at the four corners of the mesh body 100 and are respectively located on both sides of the mesh body 100. They can protect the four corners of the rectangular mesh body 100 at the same time, thereby improving the stability of the mesh body 100 and increasing the service life of the mesh body 100.

[0054] like Figures 1 to 3 As shown, in this embodiment, the protective frame 200 further includes a top baffle 240, which is detachably mounted on the top of the first frame 211 and / or the second frame 221 to prevent the net 100 from falling off the top of the protective frame 200. The top baffle 240 provides additional support for the net 100, while enhancing the structural integrity of the protective frame 200 and ensuring the installation stability of the net 100.

[0055] like Figure 5 As shown, in this embodiment, the top baffle 240 includes a plate body 241 and a stopper 242. The stopper 242 is mounted on the plate body 241 and arranged along the length of the plate body 241. The stopper 242 is configured so that when the plate body 241 is mounted on the first frame body 211 and / or the second frame body 221, the stopper 242 is located within the slide groove 270. The stopper 242 can limit the position of the plate body 241 when it is mounted on the first frame body 211 and the second frame body 221, so that the plate body 241 can be quickly positioned during installation without complex adjustments, thereby improving installation efficiency.

[0056] Preferably, in this embodiment, screw holes are formed on the plate 241, the first frame 211 and / or the second frame 221, and screws are also included. The screws and the screw holes cooperate with each other to fix the plate 241 on the first frame 211 and / or the second frame 221.

[0057] When the net body 100 needs to be maintained or replaced, the plate body 241 is removed from the first frame body 211 and / or the second frame body 221, and then the net body 100 is lifted out from the installation location of the plate body 241. There is no need to dismantle the entire protective unit, which will not affect the integrity of the entire protective net.

[0058] like Figure 1 and Figure 3 As shown, in this embodiment, the protective frame 200 further includes a first connecting member 250 and a second connecting member 260, which are respectively disposed on opposite sides of the first frame body 211 and / or the second frame body 221. The first connecting member 250 is configured to connect to the second connecting member 260 of an adjacent protective frame 200, and the second connecting member 260 is configured to connect to the first connecting member 250 of another adjacent protective frame 200, thereby connecting the two adjacent protective frames 200. The first connecting member 250 and the second connecting member 260 cooperate with each other to accurately connect the two adjacent protective frames 200 without the need for complex installation steps or tools. This facilitates quick assembly or disassembly of the protective frames 200 according to actual needs, improves work efficiency, and enhances the overall stability of the two adjacent protective frames 200.

[0059] Preferably, in this embodiment, a threaded column is formed on the first connecting member 250 and / or the second connecting member 260, and a threaded hole is formed on the second connecting member 260 and / or the first connecting member 250, and the threaded column is installed in the threaded hole to install the first connecting member 250 together with the second connecting member 260 on an adjacent protective frame 200.

[0060] like Figure 4 As shown, in this embodiment, the moving assembly 300 includes a positioning member 310, universal wheels 320, and a lifting assembly. The positioning member 310 is disposed on the base plate 230, and the universal wheels 320 are mounted on the lifting assembly. The lifting assembly is mounted on the positioning member 310 and is configured to move in the vertical direction to drive the universal wheels 320 to move in the vertical direction. The universal wheels 320 enable the protective frame 200 to be easily moved without manual handling, thereby improving the flexibility of the protective frame 200 installation. The lifting assembly allows the universal wheels 320 to extend when the protective frame 200 needs to be moved, contacting the ground for movement, and retract when the protective frame 200 does not need to be moved, thereby preventing the protective frame 200 from shifting in position and improving the applicability of the protective frame 200 installation.

[0061] Preferably, in this embodiment, four moving components 300 are provided on the protection frame 200 to increase the movement stability of the protection frame 200 .

[0062] like Figure 4As shown, in this embodiment, the lifting assembly includes a lifting rod 331 and a mounting plate 332. A mounting hole is formed on the positioning member 310, and the lifting rod 331 is mounted in the mounting hole and is configured to move in the vertical direction. The mounting plate 332 is mounted on one end of the lifting rod 331, and the universal wheel 320 is mounted on the mounting plate 332. The lifting rod 331 is movable in the vertical direction, so that the mounting plate 332 and the universal wheel 320 mounted on the mounting plate 332 can be extended when the protective frame 200 needs to be moved, thereby moving the protective frame 200. The universal wheel 320 can be retracted when the protective frame 200 moves to the installation position, thereby fixing the protective frame 200 in the installation position.

[0063] like Figure 4 As shown, in this embodiment, a limiting rod 3321 is formed on the mounting plate 332, and a limiting hole is formed on the positioning member 310. The limiting rod 3321 is disposed within the limiting hole. The limiting rod 3321 and the limiting hole cooperate with each other, so that when the lifting rod 331 drives the universal wheel 320 to move in the vertical direction, the position of the mounting plate 332 will not shift, and the mounting plate 332 can be prevented from falling off or being damaged when subjected to external forces.

[0064] like Figure 4 As shown, in this embodiment, the positioning member 310 is further formed with a fixing hole 311, and a fixing block 312 is disposed within the fixing hole 311. The fixing block 312 is configured to move vertically within the fixing hole 311 to secure or release the protective frame 200 to the ground. During the movement of the protective frame 200, the fixing block 312 is retracted to facilitate the movement of the protective frame 200. When the protective frame 200 is moved to the installation position, the fixing block 312 moves toward the ground within the fixing hole 311 and abuts against the ground, providing stable support for securing the protective frame 200 to the ground, enhancing the installation stability of the protective frame 200, and improving the flexibility of the installation location of the protective frame 200.

[0065] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A protective net for municipal engineering construction, comprising a plurality of sequentially connected protective units, wherein two adjacent protective units are detachably connected; characterized in that: Each of the protection units includes: A net body (100) and a protective frame (200), wherein the protective frame (200) comprises a first mounting frame (210), a second mounting frame (220) and a bottom plate (230); the bottoms of the first mounting frame (210) and the second mounting frame (220) are mounted on the bottom plate (230); the first mounting frame (210) and the second mounting frame (220) are arranged parallel to each other, and a slide groove (270) is formed between the first mounting frame (210) and the second mounting frame (220); the net body (100) is detachably mounted in the slide groove (270) and is configured to be able to be removed from the top of the protective frame (200); two adjacent protective frames (200) are detachably connected; A moving component (300) is installed on the base plate (230), and the moving component (300) is configured to drive the protective frame (200) to move.

2. A protective net for municipal engineering construction according to claim 1, characterized in that: The first installation frame (210) includes a first frame body (211) and a first extrusion block (212), wherein the first extrusion block (212) is installed on the first frame body (211); the second installation frame (220) includes a second frame body (221), an extrusion strip (222) and a second extrusion block (223), wherein the extrusion strip (222) is installed on the inner side of the second frame body (221) and extends along the border of the second frame body (221), and the second extrusion block (223) is installed at the end of the extrusion strip (222); the first extrusion block (212) and the second extrusion block (223) are configured to cooperate with each other to clamp the corners of the mesh body (100); the first frame body (211) and the extrusion strip (222) are configured to cooperate with each other to clamp the mesh body (100).

3. A protective net for municipal engineering construction according to claim 2, characterized in that: The second frame (221) is provided with two extrusion bars (222) for respectively squeezing two opposite sides of the net body (100); the second mounting frame (220) further comprises a guard bar (224), the two ends of the guard bar (224) being respectively mounted on the two extrusion bars (222) to prevent the net body (100) from being deformed or damaged by external forces.

4. A protective net for municipal engineering construction according to claim 2, characterized in that: The protective frame (200) further includes a top baffle (240), which is detachably mounted on the top of the first frame (211) and / or the second frame (221) to prevent the net (100) from falling off the top of the protective frame (200).

5. A protective net for municipal engineering construction according to claim 4, characterized in that: The top baffle (240) comprises a plate body (241) and a limit block (242), wherein the limit block (242) is mounted on the plate body (241) and arranged along the length direction of the plate body (241); the limit block (242) is configured such that when the plate body (241) is mounted on the first frame body (211) and / or the second frame body (221), the limit block (242) is located in the slide groove (270).

6. A protective net for municipal engineering construction according to claim 2, characterized in that: The protective frame (200) further includes a first connecting member (250) and a second connecting member (260), wherein the first connecting member (250) and the second connecting member (260) are respectively arranged on opposite sides of the first frame body (211) and / or the second frame body (221); the first connecting member (250) is configured to be connected to the second connecting member (260) of an adjacent protective frame (200); and the second connecting member (260) is configured to be connected to the first connecting member (250) of another adjacent protective frame (200), so that the two adjacent protective frames (200) can be connected to each other.

7. A protective net for municipal engineering construction according to claim 1, characterized in that: The moving assembly (300) includes a positioning member (310), a universal wheel (320) and a lifting assembly, wherein the positioning member (310) is arranged on the base plate (230), and the universal wheel (320) is installed on the lifting assembly; the lifting assembly is installed on the positioning member (310) and is configured to be able to move in the vertical direction to drive the universal wheel (320) to move in the vertical direction.

8. A protective net for municipal engineering construction according to claim 7, characterized in that: The lifting assembly comprises a lifting rod (331) and a mounting plate (332); a mounting hole is formed on the positioning member (310); the lifting rod (331) is mounted in the mounting hole and is configured to be movable in a vertical direction; the mounting plate (332) is mounted on one end of the lifting rod (331); and the universal wheel (320) is mounted on the mounting plate (332).

9. A protective net for municipal engineering construction according to claim 8, characterized in that: A limiting rod (3321) is formed on the mounting plate (332), a limiting hole is formed on the positioning member (310), and the limiting rod (3321) is inserted into the limiting hole.

10. A protective net for municipal engineering construction according to claim 9, characterized in that: A fixing hole (311) is also formed on the positioning member (310), and a fixing block (312) is provided in the fixing hole (311). The fixing block (312) is configured to be able to move in a vertical direction in the fixing hole (311) to fix the protective frame (200) on the ground or release the fixation.

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