Shaft safety net for municipal engineering

Abstract

The utility model relates to the technical field of municipal engineering facilities, and discloses a municipal engineering shaft safety net which comprises an outer frame and further comprises a storage groove formed in the surface of the outer frame, a protective net is detachably connected to the interior of the storage groove, a positioning groove is formed in the surface of the protective net, a cavity is formed in the inner wall of the storage groove, and the inner wall of the cavity is fixedly connected with the outer frame. A positioning mechanism is arranged in the cavity; through the arrangement of the limiting mechanism, the position of the outer frame can be preliminarily limited, so that the safety of follow-up installation operation is improved, if the safety net is damaged in the use process, a worker can quickly complete disassembly, assembly and replacement operation on the protection net through the cooperation of the positioning mechanism and the positioning groove for follow-up use, and the safety net is convenient to use. The problems that at present, part of shaft safety nets are poor in safety in the installation process, and time and labor are wasted when workers repair or replace the damaged safety nets are solved.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering facilities technology, specifically a safety net for well shafts in municipal engineering. Background Technology

[0002] Well safety nets are protective structures installed at well openings. They not only prevent pedestrians from accidentally stepping into or falling into inspection wells, but also prevent debris, garbage, or rainwater from entering the pipeline.

[0003] Currently, some well safety nets are installed inside the well via chains connecting them to the inner wall of the well. However, the well opening lacks protective structures, posing a risk of workers accidentally falling into the well during installation, resulting in suboptimal safety. Furthermore, the structure of some safety nets is quite fixed, requiring complete removal for repairs or replacement. This necessitates repeatedly disassembling and reassembling the chains attached to the inner wall of the well, a time-consuming and labor-intensive process. Utility Model Content

[0004] The purpose of this utility model is to provide a safety net for well shafts in municipal engineering, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety net for well shafts in municipal engineering, comprising an outer frame, and further comprising:

[0006] A storage slot is formed on the surface of the outer frame. A protective net is detachably connected to the inside of the storage slot. A positioning slot is formed on the surface of the protective net. A cavity is formed on the inner wall of the storage slot. A positioning mechanism is set inside the cavity.

[0007] A limiting mechanism is installed at the top of the outer frame, and a connecting mechanism is provided at the bottom of the outer frame.

[0008] Preferably, the positioning mechanism includes a guide rod, a positioning block, a compression spring, and a baffle. The guide rod slides through the surface of the outer frame. The positioning block is fixedly connected to one end of the guide rod, and the surface of the positioning block is slidably connected to the inner wall of the cavity. The compression spring is sleeved on the surface of the guide rod. The baffle is fixedly connected to the other end of the guide rod, and the surface of the baffle is in contact with the surface of the outer frame. The surface of the positioning block is in contact with the inner wall of the positioning groove.

[0009] Preferably, the limiting mechanism includes a vertical plate, a rotating shaft, and a limiting plate. The vertical plate is fixedly connected to the top of the outer frame, the rotating shaft is rotatably connected to the surface of the vertical plate, and the limiting plate is fixedly sleeved on the surface of the rotating shaft.

[0010] Preferably, the connecting mechanism includes a fixed frame, a chain, and a connecting rod. The fixed frame is fixedly connected to the bottom of the outer frame, the chain is installed on the inner wall of the fixed frame, and the connecting rod is fixedly connected to one end of the chain.

[0011] Preferably, the top of the outer frame is provided with a sliding groove, and the top of the positioning block is fixedly connected with a moving rod, the surface of which is in contact with the inner wall of the sliding groove.

[0012] Preferably, the surface of the limiting plate has a through hole, and the surface of the limiting plate is in contact with the top of the outer frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model, through the setting of a limiting mechanism, allows workers to initially restrict the position of the outer frame before installing the safety net, thereby increasing the safety of subsequent installation operations. If the safety net is damaged during use, workers can quickly disassemble and replace the protective net through the cooperation of the positioning mechanism and the positioning groove for future use. This solves the problem that the safety of some well shaft safety nets is not good during the installation process, and that it is time-consuming and laborious for workers to repair or replace damaged safety nets. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention with one side of the protective netting removed;

[0018] Figure 4 This is a three-dimensional structural diagram of the present invention with the outer frame cut open.

[0019] In the diagram: 1. Outer frame; 2. Storage slot; 3. Protective net; 4. Positioning slot; 5. Cavity; 6. Positioning mechanism; 61. Smooth rod; 62. Positioning block; 63. Compression spring; 64. Baffle; 7. Slide groove; 8. Moving rod; 9. Limiting mechanism; 91. Vertical plate; 92. Rotating shaft; 93. Limiting plate; 10. Through hole; 11. Connecting mechanism; 111. Fixed frame; 112. Chain; 113. Connecting rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 As shown, a safety net for a manhole in municipal engineering includes an outer frame 1, a storage groove 2 on the surface of the outer frame 1, a protective net 3 detachably connected inside the storage groove 2, a positioning groove 4 on the surface of the protective net 3, a cavity 5 on the inner wall of the storage groove 2, a positioning mechanism 6 inside the cavity 5, a limiting mechanism 9 installed on the top of the outer frame 1, and a connecting mechanism 11 installed on the bottom of the outer frame 1. Workers can install the safety net on the inner wall of the manhole through the connecting mechanism 11.

[0022] The positioning mechanism 6 includes a smooth rod 61, a positioning block 62, a compression spring 63, and a baffle 64. The smooth rod 61 slides through the surface of the outer frame 1. The positioning block 62 is fixedly connected to one end of the smooth rod 61, and the surface of the positioning block 62 is slidably connected to the inner wall of the cavity 5. The compression spring 63 is sleeved on the surface of the smooth rod 61. The baffle 64 is fixedly connected to the other end of the smooth rod 61, and the surface of the baffle 64 is in contact with the surface of the outer frame 1. The surface of the positioning block 62 is in contact with the inner wall of the positioning groove 4. A sliding groove 7 is provided on the top of the outer frame 1. A moving rod 8 is fixedly connected to the top of the positioning block 62, and the surface of the moving rod 8 is in contact with the inner wall of the sliding groove 7. When the operator pushes the moving rod 8, the positioning block 62 can be moved. At this time, the compression spring 63 is compressed and then, under the action of the elastic force of the compression spring 63, the positioning block 62 returns to its original position and can contact the surface of the positioning groove 4, so as to limit the position of the protective net 3. During the process of the positioning block 62 moving the smooth rod 61, the baffle 64 can limit the range of movement of the smooth rod 61.

[0023] The limiting mechanism 9 includes a vertical plate 91, a rotating shaft 92, and a limiting plate 93. The vertical plate 91 is fixedly connected to the top of the outer frame 1, the rotating shaft 92 is rotatably connected to the surface of the vertical plate 91, and the limiting plate 93 is fixedly sleeved on the surface of the rotating shaft 92. The surface of the limiting plate 93 has a through hole 10. When the operator rotates the limiting plate 93, the rotating shaft 92 can be rotated. At this time, after the operator places the surface of the limiting plate 93 on the ground and places the outer frame 1 inside the well, the positioning bolt can be used to pass through the through hole 10 and through the ground to fix the position of the limiting plate 93, thereby restricting the position of the outer frame 1 and increasing the safety of the operator when connecting the connecting mechanism 11 to the inside of the well. When the limiting mechanism 9 is stored, the surface of the limiting plate 93 is in contact with the top of the outer frame 1. Therefore, after the safety net is installed, the limiting plate 93 can be stored so that the safety net can be used normally and the subsequent well cover can properly seal and cover the well.

[0024] The connecting mechanism 11 includes a fixed frame 111, a chain 112, and a connecting rod 113. The fixed frame 111 is fixedly connected to the bottom of the outer frame 1. The chain 112 is installed on the inner wall of the fixed frame 111. The connecting rod 113 is fixedly connected to one end of the chain 112. After the worker inserts the connecting rod 113 through the inner wall of the well shaft, the position of the chain 112 can be fixed, thereby fixing the position of the outer frame 1, which facilitates the installation of this safety net.

[0025] Working principle: First, the worker flips the limiting plate 93. During the process of placing the outer frame 1 inside the well barrel, the limiting plate 93 contacts the ground, which can initially limit the position of the outer frame 1. Then, the worker takes another positioning bolt and passes it through the through hole 10 to the ground to position the limiting plate 93, thus facilitating the restriction of the position of the outer frame 1. This process is relatively safe. After that, the worker installs the connecting rod 113 on the inner wall of the well barrel to fix the position of the connecting mechanism 11. Thus, the position of the outer frame 1 is fixed. Finally, the worker pulls out the positioning bolt and flips the limiting plate 93 in the opposite direction. After the limiting plate 93 is placed on top of the outer frame 1, it is convenient for the subsequent worker to place the well cover on top of the well barrel. Thus, the installation of this safety net is completed.

[0026] When the protective net 3 is damaged, the staff can first lift the outer frame 1 and push the moving rod 8. After the contact between the positioning block 62 and the positioning groove 4 is released, the staff can take out the damaged protective net 3 for replacement. After the replacement protective net 3 is placed inside the storage groove 2, the positioning block 62 can be reset under the action of the compression spring 63 and cooperate with the positioning groove 4 to restrict the position of the protective net 3 for subsequent use.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A municipal well shaft safety net comprising an outer frame (1), characterized in that, Also include: The storage groove (2) is arranged on the surface of the outer frame (1), the inner part of the storage groove (2) is detachably connected with the protective net (3), the surface of the protective net (3) is provided with the positioning groove (4), the inner wall of the storage groove (2) is provided with the cavity (5), and the inner part of the cavity (5) is provided with the positioning mechanism (6); The limiting mechanism (9) is installed on the top of the outer frame (1), and the bottom of the outer frame (1) is provided with the connecting mechanism (11).

2. The shaft safety net for municipal works of claim 1, wherein: The positioning mechanism (6) includes a light rod (61), a positioning block (62), a compression spring (63) and a baffle (64), the light rod (61) is slidably penetrated through the surface of the outer frame (1), the positioning block (62) is fixedly connected to one end of the light rod (61), the surface of the positioning block (62) is slidably connected with the inner wall of the cavity (5), the compression spring (63) is sleeved on the surface of the light rod (61), the baffle (64) is fixedly connected to the other end of the light rod (61), the surface of the baffle (64) is matched with the surface of the outer frame (1), and the surface of the positioning block (62) is in contact with the inner wall of the positioning groove (4).

3. The well shaft safety net for municipal works of claim 1, wherein: The limiting mechanism (9) includes a vertical plate (91), a rotating shaft (92) and a limiting plate (93), the vertical plate (91) is fixedly connected to the top of the outer frame (1), the rotating shaft (92) is rotatably connected to the surface of the vertical plate (91), and the limiting plate (93) is fixedly sleeved on the surface of the rotating shaft (92).

4. The municipal well shaft safety net according to claim 1, characterized in that: The connecting mechanism (11) includes a fixed frame (111), a chain (112) and a connecting rod (113), the fixed frame (111) is fixedly connected to the bottom of the outer frame (1), the chain (112) is installed on the inner wall of the fixed frame (111), and the connecting rod (113) is fixedly connected to one end of the chain (112).

5. A municipal safety well-cage net according to claim 2, characterized in that: The top of the outer frame (1) is provided with a sliding groove (7), the top of the positioning block (62) is fixedly connected with a moving rod (8), and the surface of the moving rod (8) is in contact with the inner wall of the sliding groove (7).

6. A municipal safety well-cage net according to claim 3, characterized in that: The surface of the limiting plate (93) is provided with a through hole (10), and the surface of the limiting plate (93) is in contact with the top of the outer frame (1).

Images