Temporary protective fence

Abstract

The utility model belongs to the technical field of protective fences, and particularly relates to a temporary protective fence which comprises a plurality of protective fences and a plurality of supporting frames, the protective fences and the supporting frames are arranged in a staggered mode, moving wheels are arranged at the two ends of the bottom of each protective fence, and a base is fixedly connected to the bottom of each supporting frame. Limiting frames are arranged at the two ends of the top of the base correspondingly, anti-skid devices are arranged at the bottoms of inner cavities of the limiting frames, and side plates are arranged on the two sides of the base correspondingly. When the periphery of a foundation pit is protected, the protective fence can be conveniently moved to an installation position, the protective fence and a supporting frame can be rapidly installed, when the foundation pit with a large area is temporarily protected, the installation efficiency is high, after installation, moving wheels on the protective fence can be limited, the moving wheels cannot rotate, and the safety of the foundation pit is improved. The stability of the guardrail formed by the guardrail and the supporting frame is ensured, the movable wheels serve as connecting pieces to connect the guardrail and the supporting frame in the assembling process, and disassembling and assembling are convenient.

Description

Technical Field

[0001] This utility model belongs to the field of guardrail technology, specifically relating to a temporary guardrail. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data and the conditions of nearby buildings, and waterproofing and drainage work should be carried out. For shallow excavations, slope protection can be used to stabilize the soil slope. The slope should be determined according to relevant construction regulations. When excavating the excavation pit, guardrails will be set up around it to isolate it from the surrounding population. However, since the area of ​​the excavation pit is generally large, the assembly of temporary guardrails requires a long distance to transport the components, which takes a long time and a lot of manpower. This is inefficient for temporary protection and affects construction efficiency. Moving the components is also quite laborious. Utility Model Content

[0003] This utility model provides a temporary protective fence that is easy to move to the installation position, allows for quick installation of the fence and support frame, and has high installation efficiency when providing temporary protection for large foundation pits. During assembly, the movable wheels act as connectors to link the fence and support frame, facilitating disassembly and assembly.

[0004] This utility model provides the following technical solution: a temporary guardrail, comprising a plurality of guardrails and a support frame, wherein the plurality of guardrails and the plurality of support frames are arranged alternately, each guardrail has a movable wheel at both ends of its bottom, each support frame has a base fixedly connected to its bottom, each base has a limit frame at both ends of its top, the bottom of the limit frame's inner cavity is provided with anti-slip material, and each base has side plates on both sides, each support frame has a connecting cavity at its upper and lower ends, a movable block is slidably connected to the inner cavity of the connecting cavity, the movable block is detachably connected to the top of the inner cavity of the connecting cavity, and a connecting rod is provided on one side of the movable block, and a fixing pin is provided between the guardrail and the support frame.

[0005] The movable block is configured as a trapezoidal structure, and magnetic plates are fixedly connected to the top and bottom of the movable block. Iron sheets matching the magnetic plates are provided at the top and bottom of the connecting cavity. The movable block and the inner wall of the connecting cavity are connected by magnetic plates and iron sheets.

[0006] The movable block is fixedly connected to both sides with protrusions, and the inner walls of both sides of the connecting cavity are fixedly connected to limit blocks.

[0007] The support frame has through slots on both sides, the guardrail has mounting slots on both sides, and one end of the fixing pin matches the diameter of the through slots and the mounting slots.

[0008] The fixed pin has one end with a beveled structure and is slidably connected to one side of the movable block.

[0009] The support frame has sliding grooves on both the upper and lower sides of one side. The sliding grooves are connected to the connecting cavity on the adjacent side. The connecting rod passes through the sliding groove on the adjacent side, and an outer slider is fixedly connected to one end of the connecting rod.

[0010] The anti-slip top has an arc-shaped groove that matches the moving wheel, and the anti-slip top surface has a rough surface.

[0011] The beneficial effects of this utility model are:

[0012] In this new type of structure, when protecting the area around a foundation pit, it is easy to move the guardrail to the installation position, and the guardrail and support frame can be installed quickly. When providing temporary protection for a large foundation pit, the installation efficiency is high. After installation, the moving wheels on the guardrail can be limited to prevent them from rotating, ensuring the stability of the guardrail composed of the guardrail and support frame. During assembly, the moving wheels serve as connectors to connect the guardrail and support frame, making it easy to disassemble and assemble.

[0013] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the connecting cavity in this utility model;

[0016] Figure 3 This is a schematic diagram illustrating the movement of the movable block in this utility model;

[0017] Figure 4 This utility model Figure 1 Enlarged view of section A.

[0018] In the diagram: 1. Guardrail; 11. Casters; 2. Support frame; 21. Connecting cavity; 211. Through groove; 212. Limiting block; 22. Slide groove; 3. Base; 31. Limiting frame; 32. Anti-slip component; 33. Side plate; 4. Movable block; 41. Magnetic plate; 411. Iron sheet; 42. Connecting rod; 421. External slider; 43. Protrusion; 5. Fixing pin; 51. Mounting groove. Detailed Implementation

[0019] Please see Figures 1-4The present invention provides the following technical solution: a temporary guardrail, comprising a plurality of guardrails 1 and a support frame 2, wherein the plurality of guardrails 1 and the plurality of support frames 2 are arranged alternately, both ends of the bottom of the guardrails 1 are provided with movable wheels 11, the bottom of the support frame 2 is fixedly connected to a base 3, both ends of the top of the base 3 are provided with limit frames 31, the bottom of the inner cavity of the limit frame 31 is provided with anti-slip 32, and both sides of the base 3 are provided with side plates 33, the upper and lower ends of the support frame 2 are provided with connecting cavities 21, the inner cavity of the connecting cavity 21 is slidably connected with a movable block 4, the movable block 4 is detachably connected to the top of the inner cavity of the connecting cavity 21, and a connecting rod 42 is provided on one side of the movable block 4, and a fixing pin 5 is provided between the guardrails 1 and the support frame 2.

[0020] In this embodiment: A protective railing 1 and a support frame 2 form a set of protective railings. Several protective railings 1 and several support frames 2 are arranged alternately. Each protective railing 1 has a caster wheel 11 at both ends of its bottom for easy movement. A base 3 is fixedly connected to the bottom of the support frame 2. Limiting frames 31 are provided at both ends of the top of the base 3. Anti-slip 32 is provided at the bottom of the inner cavity of the limiting frame 31, and side plates 33 are provided on both sides of the base 3. The limiting frame 31, anti-slip 32, and side plates 33 form a structure that limits the movement of the caster wheel 11. A connecting cavity 21 is provided at both the upper and lower ends of the support frame 2. A movable block 4 is slidably connected within the connecting cavity 21. 4 is detachably connected to the top of the inner cavity of the connecting cavity 21, and a connecting rod 42 is provided on one side of the movable block 4. A fixing pin 5 is provided between the guardrail 1 and the support frame 2. The movable block 4, the connecting rod 42 and the fixing pin 5 form a component for connecting the guardrail 1 and the support frame 2. A spring is provided at one end of the fixing pin 5 to connect the fixing pin 5 to the inner wall of the connecting cavity 21, and a connecting block larger than the mounting groove 51 is provided at one end of the fixing pin 5 to limit the movement distance of the fixing pin 5. When assembling this new type, the guardrail 1 slides and adjusts its position through the moving wheel 11, so that several guardrails 1 and the support frame 2 are staggered until they surround the construction area of ​​the foundation pit, thus protecting the guardrail 1. The guardrail 1 is raised, connecting the movable wheel 11 to the anti-slip 32 on the adjacent base 3. This limits the movable wheel 11 between the anti-slip 32 and the two side plates 33. The rough surface on the top of the anti-slip 32 increases the friction between the movable wheel 11 and the anti-slip 32, making it difficult for the movable wheel 11 to rotate. This allows the guardrail 1 to be installed between the two support frames 2. At this time, the mounting slots 51 on both sides of the guardrail 1 are aligned with the through slots 211 on one side of the support frame 2. The fixing pin 5 is mostly located in the inner cavity of the connecting cavity 21. The outer slider 421 slides from the outside of the support frame 2, causing the connecting rod 42 and its movable block 4 at one end to slide in the inner cavity of the connecting cavity 21, thus driving the movable block... 4. Separate from the top of the inner cavity of the connecting cavity 21, during the downward sliding of the movable block 4, the two sides of the movable block 4 press against the two fixing pins 5, so that one end of the fixing pin 5 enters the corresponding installation groove 51. The fixing pin 5 connects the guardrail 1 and the support frame 2, thereby completing the quick installation of a guardrail composed of a set of guardrail 1 and support frame 2. During disassembly, slide the movable block 4 upward, and the fixing pin 5 loses the pressing force of the movable block 4. It is reset by the elastic force of the spring at one end, which drives the fixing pin 5 to retract into the connecting cavity 21, remove the moving wheel 11 from between the side plates 33, thereby terminating the connection between the guardrail 1 and the support frame 2.

[0021] The movable block 4 is designed as a trapezoidal structure, and magnetic plates 41 are fixedly connected to the top and bottom of the movable block 4. Iron pieces 411 matching the magnetic plates 41 are provided at the top and bottom of the inner cavity of the connecting cavity 21. The movable block 4 and the inner wall of the connecting cavity 21 are connected by magnetic plates 41 and iron pieces 411. The movable block 4 and the inner wall of the connecting cavity 21 are connected by magnetic plates 41 and iron pieces 411.

[0022] Both sides of the movable block 4 are fixedly connected with protrusions 43, and both sides of the inner wall of the connecting cavity 21 are fixedly connected with limit blocks 212; by setting protrusions 43 and limit blocks 212, the movement distance of the movable block 4 is limited.

[0023] Both sides of the support frame 2 are provided with through grooves 211, and both sides of the guardrail 1 are provided with mounting grooves 51. One end of the fixing pin 5 matches the diameter of the through groove 211 and the mounting groove 51. The through groove 211 and the mounting groove 51 are aligned and set together with the fixing pin 5 to connect the guardrail 1 and the support frame 2.

[0024] One end of the fixed pin 5 is set with a beveled structure, and one end of the fixed pin 5 is slidably connected to one side of the movable block 4; the beveled structure of one end of the fixed pin 5 makes the connection with the movable block 4 smoother.

[0025] The support frame 2 has a sliding groove 22 on both the upper and lower sides of one side. The sliding groove 22 is connected to the connecting cavity 21 on the adjacent side. The connecting rod 42 passes through the sliding groove 22 on the adjacent side, and one end of the connecting rod 42 is fixedly connected to the outer slider 421. By setting the sliding groove 22, the connecting rod 42 passes through one side of the support frame 2 and is fixedly connected to the outer slider 421.

[0026] The top of the anti-slip 32 is provided with an arc-shaped groove that matches the movable wheel 11, and the top surface of the anti-slip 32 is provided with a rough surface. The arc-shaped groove on the top of the anti-slip 32 matches the movable wheel 11, which facilitates the limiting of the movable wheel 11. The rough surface increases the friction between the movable wheel 11 and the anti-slip 32, thereby increasing the limiting of the movable wheel 11.

[0027] The working principle and usage process of this utility model are as follows: During assembly, the guardrail 1 is adjusted in position by sliding the movable wheels 11, so that several guardrails 1 are staggered with the support frame 2 until they surround the construction area of ​​the foundation pit. The guardrail 1 is then lifted, so that the movable wheels 11 are connected to the anti-slip 32 on the base 3 on the adjacent side. This limits the movable wheels 11 between the anti-slip 32 and the two side plates 33. The rough surface on the top of the anti-slip 32 increases the friction between the movable wheels 11 and the anti-slip 32, making it difficult for the movable wheels 11 to rotate. Thus, the guardrail 1 is installed between the two support frames 2. At this time, the mounting grooves 51 on both sides of the guardrail 1 are aligned with the through groove 211 on one side of the support frame 2. The fixing pins 5 are mostly located in the inner cavity of the connecting cavity 21 and slide outward from the outside of the support frame 2. Block 421 drives the connecting rod 42 and its movable block 4 at one end to slide within the connecting cavity 21, causing the movable block 4 to separate from the top of the connecting cavity 21. As the movable block 4 slides downward, its two sides press against the two fixing pins 5, causing one end of the fixing pin 5 to enter the corresponding mounting groove 51. The fixing pin 5 connects the guardrail 1 and the support frame 2, thus completing the quick installation of a guardrail consisting of a set of guardrail 1 and support frame 2. During disassembly, the movable block 4 is slid upward, and the fixing pin 5 loses the pressing force of the movable block 4. It is reset by the elastic force of the spring at one end, causing the fixing pin 5 to retract into the connecting cavity 21, removing the moving wheel 11 from between the side plates 33, thereby terminating the connection between the guardrail 1 and the support frame 2.

Claims

1. A temporary guardrail, comprising a plurality of guardrails (1) and a support frame (2), characterized in that: Several guardrails (1) and several support frames (2) are arranged alternately. Each guardrail (1) is provided with a movable wheel (11) at both ends of its bottom. Each support frame (2) is fixedly connected to a base (3) at its bottom. Each base (3) is provided with a limit frame (31) at both ends of its top. The bottom of the inner cavity of the limit frame (31) is provided with an anti-slip (32). Each base (3) is provided with a side plate (33) on both sides. Each support frame (2) has a connecting cavity (21) at its upper and lower ends. A movable block (4) is slidably connected to the inner cavity of the connecting cavity (21). The movable block (4) is detachably connected to the top of the inner cavity of the connecting cavity (21). A connecting rod (42) is provided on one side of the movable block (4). A fixing pin (5) is provided between the guardrail (1) and the support frame (2).

2. A temporary protective fence according to claim 1, characterized in that: The movable block (4) is configured as a trapezoidal structure, and magnetic plates (41) are fixedly connected to the top and bottom of the movable block (4). Iron pieces (411) matching the magnetic plates (41) are provided at the top and bottom of the inner cavity of the connecting cavity (21). The movable block (4) and the inner wall of the connecting cavity (21) are connected by adsorption through the magnetic plates (41) and the iron pieces (411).

3. A temporary protective fence according to claim 1, characterized in that: Both sides of the movable block (4) are fixedly connected with protrusions (43), and both sides of the inner wall of the connecting cavity (21) are fixedly connected with limit blocks (212).

4. A temporary protective fence according to claim 1, characterized in that: The support frame (2) has through slots (211) on both sides, and the guardrail (1) has mounting slots (51) on both sides. One end of the fixing pin (5) matches the diameter of the through slot (211) and the mounting slot (51).

5. A temporary protective fence according to claim 1, characterized in that: One end of the fixing pin (5) is set as an inclined structure, and one end of the fixing pin (5) is slidably connected to one side of the movable block (4).

6. A temporary protective fence according to claim 1, characterized in that: The support frame (2) has a sliding groove (22) on both the upper and lower sides of one side. The sliding groove (22) is connected to the connecting cavity (21) on the adjacent side. The connecting rod (42) passes through the sliding groove (22) on the adjacent side, and an outer slider (421) is fixedly connected to one end of the connecting rod (42).

7. A temporary protective fence according to claim 1, characterized in that: The top of the anti-slip (32) is provided with an arc-shaped groove that matches the moving wheel (11), and the top surface of the anti-slip (32) is provided with a rough surface.

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