Adjustable foundation pit protective fence

Abstract

The utility model relates to the technical field of foundation pit fences, in particular to an adjustable foundation pit protective fence which comprises a first fence and an adjusting device, a second fence is arranged at one end of the first fence, the adjusting device is arranged at one end of the first fence, the adjusting device comprises a fixing block, and the fixing block is fixedly connected with the first fence. The surface of each fixing block is rotatably connected with a rotating rod, the two fixing blocks are symmetrically arranged, the side, close to the corresponding fixing block, of each rotating rod is fixedly connected with a protruding block, the surface of each fixing block is provided with a sliding hole, and the inner wall of the sliding hole in the surface of each fixing block is slidably connected with a sliding rod. The angle of the fence can be flexibly adjusted according to actual terrain requirements, the fence is tightly attached to the edge of a foundation pit, protection blind areas are reduced, safety of constructors is effectively guaranteed, and falling of the constructors or objects is prevented.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit fence technology, and in particular to an adjustable foundation pit protective fence. Background Technology

[0002] Pit fencing is a safety protection facility used around a foundation pit during construction. It is usually made of materials such as steel pipes and wire mesh. Its function is to prevent people and objects from falling into the pit, isolate the construction site, warn passers-by to pay attention to safety, and at the same time, improve the civilized image of the construction site and make the construction site cleaner and more beautiful.

[0003] Existing technologies, such as the utility model with publication number CN208686130U, relate to the field of construction industry protection. Specifically, it includes a first and second column vertically mounted on the ground and parallel to each other. The first column is hollow and has a rotating rod rotatably mounted inside. A nylon mesh fabric is wound around the rotating rod to cover the space between the first and second columns. A through-slit is provided on the first column for the nylon mesh fabric to pass through. A fixing element is provided on the edge of the nylon mesh fabric away from the rotating rod to fix the nylon mesh fabric to the second column. Counterweights are provided at the ground-facing ends of both the first and second columns. The nylon mesh fabric and fixing elements eliminate the need for specialized tools during installation of the protective fence, allowing for rapid installation and convenient disassembly.

[0004] However, most existing foundation pit fences are fixed structures, making it difficult to adjust the angle and lacking flexible joint structures. They are not suitable for complex terrains and require a lot of manpower for on-site modification, increasing construction costs. Furthermore, they are difficult to reuse, reducing resource utilization. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of existing foundation pit fences, which are mostly fixed structures, making it difficult to adjust the angle, lacking flexible joint structures, making them unsuitable for complex terrain, requiring a lot of manpower for on-site modification, increasing construction costs, and making them difficult to reuse, thus reducing resource utilization. Therefore, an adjustable foundation pit protection fence is proposed.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an adjustable foundation pit protective fence, comprising a first enclosure and an adjustment device. A second enclosure is provided at one end of the first enclosure, and the adjustment device is provided at one end of the first enclosure. The adjustment device includes a fixing block, which is fixedly connected to the first enclosure. A rotating rod is rotatably connected to the surface of the fixing block. There are two fixing blocks, which are symmetrically arranged. A protrusion is fixedly connected to the side of the rotating rod near the fixing block. A sliding hole is provided on the surface of the fixing block, and a sliding rod is slidably connected to the inner wall of the sliding hole on the surface of the fixing block. By setting the adjustment device, the enclosure can be flexibly adjusted according to the actual terrain requirements, so that the enclosure fits tightly against the edge of the foundation pit, reducing the occurrence of blind spots, effectively ensuring the safety of construction personnel, and preventing personnel or objects from falling.

[0007] Preferably, a hook is fixedly connected to the lower surface of the slide rod, and an adjustment groove is provided on the surface of the protrusion. The hook is inserted into the adjustment groove on the surface of the protrusion. By setting the hook, when the angle of the enclosure does not need to be adjusted, the hook is inserted into the protrusion, so that the slide rod and the protrusion lock each other, thereby fixing the position of the rotating rod and the second enclosure, ensuring that the enclosure remains stable during normal use and will not rotate arbitrarily due to external forces or other factors.

[0008] Preferably, a spring is fixedly connected to one side of the slide rod, and the end of the spring away from the slide rod is fixedly connected to the fixing block. By setting the spring, when the hook is inserted into the protrusion, it can lock the rotating rod, preventing it from rotating freely, ensuring that the angle of the fence is fixed during normal use, preventing the fence angle from shifting due to external force collisions, and maintaining the stability of the protective structure.

[0009] Preferably, a threaded sleeve is fixedly connected to the upper surface of the fixed block, and a retaining ring is threadedly connected to the surface of the threaded sleeve. By setting the retaining ring, the retaining ring plays a key role in constraint and release during the angle adjustment process. Before the angle is adjusted, it abuts against the slide rod, restricting the movement of the slide rod and facilitating the rotation of the rotating rod.

[0010] Preferably, there are three hooks arranged in a circumferential array along the fixing block, and the retaining ring contacts the sliding rod.

[0011] Preferably, the surface of the rotating rod is provided with a splicing component, the splicing component including a sleeve, the sleeve being fixedly connected to the rotating rod, and a strip rod being fixedly connected to the side of the second enclosure near the sleeve. By setting the splicing component, construction workers can freely combine different numbers of second enclosures, quickly change the total length and layout of the enclosure to adapt to new construction area divisions, and improve the flexibility of enclosure use.

[0012] Preferably, the strip rod is inserted into the sleeve, the surface of the sleeve has a threaded hole, the surface of the sleeve is threaded with a threaded rod, the surface of the strip rod has a slot, and the threaded rod is threadedly connected to the slot on the surface of the strip rod. By setting the strip rod, rotating the threaded rod to disengage from the strip rod can separate the second enclosure from the sleeve and remove the second enclosure. When the strip rod is inserted into the sleeve, rotating the threaded rod to insert it into the strip rod can fix the second enclosure onto the sleeve.

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

[0014] 1. In this utility model, by setting an adjustment device, when the angle of the enclosure needs to be adjusted, the sliding rod is pushed to drive the hook to disengage from the protrusion. Then, the retaining ring is rotated. The retaining ring is guided downward by the threaded sleeve and abuts against the sliding rod. At this time, the rotating rod is unrestrained, and the angle of the second enclosure can be adjusted by rotation. When the second enclosure reaches the appropriate angle, the retaining ring is rotated in the opposite direction. The retaining ring disengages from the sliding rod, and the spring is unrestrained, generating elastic force to pull the sliding rod to drive the hook to insert into the protrusion to complete the fixation. By setting an adjustment device, the angle of the enclosure can be flexibly adjusted according to the actual terrain requirements, so that the enclosure fits tightly against the edge of the foundation pit, reduces the occurrence of blind spots, effectively protects the safety of construction personnel, and prevents personnel or objects from falling.

[0015] 2. In this utility model, by setting up a splicing device, the second enclosure can be separated from the clip by rotating the threaded rod to disengage it from the strip rod. The second enclosure can be removed, and when the strip rod is inserted into the clip, rotating the threaded rod to insert it into the strip rod can fix the second enclosure onto the clip. By setting up the splicing device, construction workers can freely combine different numbers of second enclosures to quickly change the total length and layout of the enclosure to adapt to new construction area divisions, thus improving the flexibility of enclosure use. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of an adjustable foundation pit protective fence is provided for this utility model;

[0017] Figure 2 This utility model provides a schematic diagram of the rotating rod structure of an adjustable foundation pit protective fence;

[0018] Figure 3 This utility model provides a schematic diagram of the threaded sleeve structure of an adjustable foundation pit protective fence;

[0019] Figure 4 This utility model proposes an adjustable foundation pit protective fence. Figure 3 A magnified structural diagram at point A;

[0020] Figure 5This utility model presents a schematic diagram of the splicing component structure of an adjustable foundation pit protective fence.

[0021] Legend: 1. First enclosure; 2. Second enclosure; 3. Adjustment device; 31. Fixing block; 32. Rotating rod; 33. Threaded sleeve; 34. Retaining ring; 35. Protrusion; 36. Sliding rod; 37. Spring; 38. Hook; 39. Splicing assembly; 391. Clip; 392. Strip rod; 393. Threaded rod. Detailed Implementation

[0022] Please see Figures 1-5 This utility model provides a technical solution: an adjustable foundation pit protective fence, including a first enclosure 1 and an adjustment device 3, wherein a second enclosure 2 is provided at one end of the first enclosure 1, and the adjustment device 3 is provided at one end of the first enclosure 1.

[0023] In this implementation scheme: the adjustment device 3 includes a fixing block 31, which is fixedly connected to the first enclosure 1. A rotating rod 32 is rotatably connected to the surface of the fixing block 31. There are two fixing blocks 31, which are symmetrically arranged. A protrusion 35 is fixedly connected to the side of the rotating rod 32 near the fixing block 31. A sliding hole is opened on the surface of the fixing block 31. A sliding rod 36 is slidably connected to the inner wall of the sliding hole on the surface of the fixing block 31. By setting the adjustment device 3, the enclosure can be flexibly adjusted according to the actual terrain requirements, so that the enclosure fits tightly against the edge of the foundation pit, reducing the occurrence of blind spots, effectively ensuring the safety of construction personnel, and preventing personnel or objects from falling.

[0024] Specifically, a hook 38 is fixedly connected to the lower surface of the slide bar 36, and an adjustment groove is provided on the surface of the protrusion 35. The hook 38 is inserted into the adjustment groove on the surface of the protrusion 35. By setting the hook 38, when the angle of the enclosure does not need to be adjusted, the hook 38 is inserted into the protrusion 35, so that the slide bar 36 and the protrusion 35 are locked together, thereby fixing the position of the rotating rod 32 and the second enclosure 2, ensuring that the enclosure remains stable during normal use and will not rotate arbitrarily due to external forces or other factors.

[0025] Specifically, a spring 37 is fixedly connected to one side of the slide bar 36. The end of the spring 37 away from the slide bar 36 is fixedly connected to the fixing block 31. By setting the spring 37, when the hook 38 is inserted into the protrusion 35, it can lock the rotating rod 32, preventing it from rotating freely. This ensures that the angle of the fence is fixed during normal use, preventing the angle of the fence from shifting due to external force collisions, and maintaining the stability of the protective structure.

[0026] Specifically, a threaded sleeve 33 is fixedly connected to the upper surface of the fixed block 31, and a retaining ring 34 is threadedly connected to the surface of the threaded sleeve 33. By setting the retaining ring 34, the retaining ring 34 plays a key role in constraint and release during the angle adjustment process. Before the angle is adjusted, it abuts against the slide rod 36, restricting the movement of the slide rod 36, which facilitates the rotation of the rotating rod 32.

[0027] Specifically, there are three hooks 38, which are arranged in a circumferential array along the fixing block 31, and the retaining ring 34 contacts the slide bar 36.

[0028] Specifically, the surface of the rotating rod 32 is provided with a splicing component 39, which includes a sleeve 391. The sleeve 391 is fixedly connected to the rotating rod 32, and a strip rod 392 is fixedly connected to the side of the second enclosure 2 near the sleeve 391.

[0029] In this embodiment, by setting the splicing component 39, construction workers can freely combine different numbers of second fences 2 to quickly change the total length and layout of the fences to adapt to new construction area divisions, thus improving the flexibility of fence use.

[0030] Specifically, the bar rod 392 is inserted into the sleeve 391, the surface of the sleeve 391 is provided with a threaded hole, the surface of the sleeve 391 is threadedly connected to the threaded rod 393, the surface of the bar rod 392 is provided with a slot, and the threaded rod 393 is threadedly connected to the slot on the surface of the bar rod 392.

[0031] In this embodiment: by setting the bar rod 392, rotating the threaded rod 393 to disengage from the bar rod 392, the second enclosure 2 can be separated from the clamp 391 and the second enclosure 2 can be removed. When the bar rod 392 is inserted into the clamp 391, rotating the threaded rod 393 to insert it into the bar rod 392 can fix the second enclosure 2 onto the clamp 391.

[0032] Working principle: By setting the adjustment device 3, when the angle of the enclosure needs to be adjusted, the sliding rod 36 is pushed to drive the hook 38 to disengage from the protrusion 35. Then the retaining ring 34 is rotated. The retaining ring 34 is guided downward by the threaded sleeve 33 and abuts against the sliding rod 36. At this time, the rotating rod 32 is unrestrained, and the angle of the second enclosure 2 can be rotated to adjust. When the second enclosure 2 reaches the appropriate angle, the retaining ring 34 is rotated in the opposite direction. The retaining ring 34 disengages from the sliding rod 36. The spring 37 is unrestrained and generates elastic force to pull the sliding rod 36 to drive the hook 38 to insert into the protrusion 35 to complete the fixation. By setting the adjustment device 3, the angle of the enclosure can be flexibly adjusted according to the actual terrain requirements, so that the enclosure fits tightly against the edge of the foundation pit, reduces the occurrence of blind spots, effectively protects the safety of construction personnel, and prevents personnel or objects from falling.

[0033] By setting up a splicing device, rotating the threaded rod 393 to disengage from the strip rod 392 can separate the second enclosure 2 from the clamp 391, allowing the second enclosure 2 to be removed. When the strip rod 392 is inserted into the clamp 391, rotating the threaded rod 393 to insert it into the strip rod 392 can fix the second enclosure 2 onto the clamp 391. By setting up a splicing device, construction workers can freely combine different numbers of second enclosures 2, quickly changing the total length and layout of the enclosure to adapt to new construction area divisions, thus improving the flexibility of enclosure use.

Claims

1. An adjustable foundation pit protection fence comprising a first enclosure (1) and an adjusting device (3), characterized in that: A second enclosure (2) is provided at one end of the first enclosure (1). The adjustment device (3) is provided at one end of the first enclosure (1). The adjustment device (3) includes a fixing block (31). The fixing block (31) is fixedly connected to the first enclosure (1). A rotating rod (32) is rotatably connected to the surface of the fixing block (31). There are two fixing blocks (31). The two fixing blocks (31) are symmetrically arranged. A protrusion (35) is fixedly connected to the side of the rotating rod (32) near the fixing block (31). A sliding hole is opened on the surface of the fixing block (31). A sliding rod (36) is slidably connected to the inner wall of the sliding hole on the surface of the fixing block (31).

2. The adjustable foundation pit protection fence according to claim 1, characterized in that: The lower surface of the slide bar (36) is fixedly connected to a hook (38), and the surface of the protrusion (35) is provided with an adjustment groove. The hook (38) is inserted into the adjustment groove on the surface of the protrusion (35).

3. An adjustable foundation pit protection fence according to claim 2, characterized in that: A spring (37) is fixedly connected to one side of the slide rod (36), and the end of the spring (37) away from the slide rod (36) is fixedly connected to the fixing block (31).

4. An adjustable foundation pit protection fence according to claim 3, characterized in that: The upper surface of the fixing block (31) is fixedly connected to a threaded sleeve (33), and the surface of the threaded sleeve (33) is threadedly connected to a retaining ring (34).

5. An adjustable foundation pit protection fence according to claim 4, characterized in that: There are three hooks (38), which are arranged in a circumferential array along the fixing block (31), and the retaining ring (34) contacts the slide rod (36).

6. The adjustable foundation pit protection fence according to claim 1, characterized in that: The surface of the rotating rod (32) is provided with a splicing component (39), the splicing component (39) includes a sleeve (391), the sleeve (391) is fixedly connected to the rotating rod (32), and a strip rod (392) is fixedly connected to the side of the second enclosure (2) near the sleeve (391).

7. An adjustable foundation pit protection fence according to claim 6, characterized in that: The bar (392) is inserted into the sleeve (391). The surface of the sleeve (391) is provided with a threaded hole. The surface of the sleeve (391) is threaded with a threaded rod (393). The surface of the bar (392) is provided with a slot. The threaded rod (393) is threadedly connected to the slot on the surface of the bar (392).

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