Earth and stone excavation safety protection device

Abstract

The utility model relates to the technical field of earth-rock excavation safety protection, in particular to an earth-rock excavation safety protection device. The protection device comprises a first protection plate and a second protection plate, a plurality of fixing nails are fixedly connected to the bottom face of the first protection plate and the bottom face of the second protection plate, two fixing devices are arranged on the sides, close to each other, of the first protection plate and the second protection plate, and each fixing device comprises a first rotating frame. The first rotating frame is fixedly connected with the surface of the first protection plate, a rotating column is rotatably connected to the inner wall of the first rotating frame, a sliding block is slidably connected to the arc surface of the end, away from the first rotating frame, of the rotating column, and fixing columns are fixedly connected to the two sides of one end of the sliding block correspondingly; and a fixed block is fixedly connected to the surface, corresponding to the rotating column, of the second protection plate. The problems that due to the fact that vibration occurs in a nut and screw connection mode, nut and screw connection becomes loose, connection between protection plates becomes unstable, and potential safety hazards are increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of earthwork excavation safety protection, in particular to an earthwork excavation safety protection device. Background Art

[0002] Earthwork excavation is a common project in construction projects. During earthwork excavation operations, given that rolling rocks on the hillside can easily pose a safety hazard to the transportation channels at the foot of the slope, to ensure the safety of the working area and personnel passage, construction sites usually take measures to build safety protection facilities to enhance the safety of the passage.

[0003] In existing technology, protective plates are often installed at earthwork excavation sites to reduce the safety hazards posed by rolling rocks to the transport corridor at the foot of the slope. During installation, the two protective plates are often connected using a screw-nut connection. However, this nut-screw connection can vibrate, causing the nut-screw connection to loosen, resulting in an unstable connection between the protective plates and increasing safety hazards. Therefore, it is necessary to provide a new earthwork excavation safety protection device to address this issue. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the existing technology that the nut and screw connection method may become loose due to vibration, causing the connection between the nut and screw to become unstable, thereby increasing safety hazards, and to propose a safety protection device for earth and stone excavation.

[0005] The cam is secured to a position 56° with respect to the first and second guardrails, and the cam is secured to a position 56° with respect to the first and second guardrails, and the cam is secured to a position 56° with respect to the first and second guardrails.

[0006] The effect achieved by the above components is: by providing a fixing device, the operator can quickly fix and splice the first protective plate and the second protective plate, which can significantly reduce the time required for splicing and installation, improve work efficiency, and enable faster commissioning.

[0007] Preferably, the arc surface at one end of the rotating column is slidably connected to an auxiliary ring, and the auxiliary ring is an elastic rubber ring.

[0008] The effect achieved by the above components is that the rotating ring exerts a continuous elastic force on the slider by squeezing the auxiliary ring, thereby increasing the friction between the rotating ring and the slider and preventing loosening due to vibration and other reasons.

[0009] Preferably, a coil spring is slidably connected to the inner wall of the first rotating frame, and two ends of the coil spring are fixedly connected to the first rotating frame and the rotating column respectively.

[0010] The effect achieved by the above components is that the torsional force generated by the coil spring can squeeze and limit the position of the rotating column, thereby preventing the position of the rotating column from shaking.

[0011] Preferably, the side surface of the second protective plate is fixedly connected to the limiting plate, and a limiting groove is provided on the side surface of the first protective plate corresponding to the position of the limiting plate, and the inner wall of the limiting groove is slidably connected to the surface of the limiting plate.

[0012] The effect achieved by the above components is: through the cooperation between the limiting plate and the limiting groove, the stability of the splicing between the first protective plate and the second protective plate is improved.

[0013] Preferably, a support device is provided on the surface of the second protective plate, and the support device includes a second rotating frame, the second rotating frame is fixedly connected to the side of the second protective plate, the inner wall of the second rotating frame is rotatably connected to a rotating tube, the inner wall of the rotating tube is slidably connected to a support rod, and the support rod is rotatably connected to the support plate at one end of the rotating tube away from the second rotating frame, and the surface of the rotating tube is fixedly connected to a fixed frame, the inner wall of the fixed frame slides through the limiting rod, and the arc surface of the limiting rod is slidably connected to a spring, two ends of the spring are respectively fixedly connected to the limiting rod and the fixing frame, and a plurality of limiting holes are evenly opened on the surface of the support rod corresponding to the position of the limiting rod, and the inner wall of the limiting hole is slidably connected to the arc surface of the limiting rod.

[0014] The effect achieved by the above components is that by providing the supporting device, the operator can flexibly adjust the length of the support rod according to different terrains, thereby achieving an effective fixing effect.

[0015] Preferably, one end of the limiting rod is fixedly connected to a pull ring, and the cross-section of the pull ring is circular.

[0016] The effect achieved by the above components is: it is convenient to pull the limit rod.

[0017] Preferably, a plurality of anti-slip spikes are fixedly connected to the bottom surface of the support plate, and the plurality of anti-slip spikes are evenly distributed on the bottom surface of the support plate.

[0018] The effects achieved by the above components are: increasing the grip between the support plate and the ground and improving stability.

[0019] In summary, the beneficial effects of the present invention are as follows:

[0020] In the utility model, by providing a fixing device, the operator can quickly fix and splice the first protective plate and the second protective plate, thereby significantly reducing the time required for splicing and installation, improving work efficiency, and enabling faster commissioning.

[0021] In the utility model, by providing the supporting device, the operator can flexibly adjust the length of the supporting rod according to different terrains, thereby achieving an effective fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a safety protection device for earthwork excavation provided by the utility model;

[0023] Figure 2 for Figure 1 A schematic structural diagram of the fixing device shown;

[0024] Figure 3 for Figure 1 A schematic structural diagram of the supporting device shown;

[0025] Figure 4 for Figure 3 A is shown as an enlarged structural diagram.

[0026] Legend: 1. First protective plate; 2. Fixing nail; 3. Fixing device; 301. First rotating frame; 302. Rotating column; 303. Coil spring; 304. Fixing block; 305. Fixing hole; 306. Slider; 307. Fixing column; 308. Auxiliary ring; 309. Rotating ring; 310. Limiting plate; 311. Limiting groove; 4. Supporting device; 401. Second rotating frame; 402. Rotating tube; 403. Support rod; 404. Support plate; 405. Anti-slip nail; 406. Limiting hole; 407. Fixing frame; 408. Limiting rod; 409. Spring; 410. Pull ring; 5. Second protective plate. DETAILED DESCRIPTION

[0027] Reference Figures 1 to 4 As shown, the utility model provides a technical solution: a safety protection device for earth and stone excavation, comprising a first protective plate 1 and a second protective plate 5, the bottom surfaces of the first protective plate 1 and the second protective plate 5 are fixedly connected with a plurality of fixing nails 2, two fixing devices 3 are provided on the side where the first protective plate 1 and the first protective plate 5 are close to each other, and a supporting device 4 is provided on the surface of the second protective plate 5.

[0028] The specific configuration and function of the fixing device 3 and the supporting device 4 will be described in detail below.

[0029] Reference Figure 2 The cam 308 of the embodiment of the present invention is fixed on the first frame 301, and the cam 308 of the embodiment of the present invention is fixed on the first frame 301. The cam 308 of the embodiment of the present invention is fixed on the first frame 301, and the cam 308 of the embodiment of the present invention is fixed on the first frame 301. When the locking cam 308 is unlocked, the locking cam 308 is unlocked, and the winch 308 is unlocked, so the winch 308 can be unlocked.

[0030] Reference Figure 3 and Figure 4As shown, in this embodiment: the supporting device 4 includes a second rotating frame 401, the second rotating frame 401 is fixedly connected to the side of the second protective plate 5, the inner wall of the second rotating frame 401 is rotatably connected to the rotating tube 402, the inner wall of the rotating tube 402 is slidably connected to the support rod 403, the end of the support rod 403 away from the second rotating frame 401 is rotatably connected to the support plate 404, the surface of the rotating tube 402 away from the second rotating frame 401 is fixedly connected to the fixed frame 407, the inner wall of the fixed frame 407 slides through the limiting rod 408, the arc surface of the limiting rod 408 is slidably connected to the spring 409, and the two ends of the spring 409 are respectively fixedly connected to the limiting rod 408 and the fixing frame 407 A number of limiting holes 406 are evenly opened on the surface of the support rod 403 at the position corresponding to the limiting rod 408. The inner wall of the limiting hole 406 is slidably connected to the arc surface of the limiting rod 408. By providing the supporting device 4, the operator can flexibly adjust the length of the support rod 403 according to different terrains, thereby achieving an effective fixation effect. A pull ring 410 is fixedly connected to one end of the limiting rod 408. The cross-section of the pull ring 410 is circular, which is convenient for pulling the limiting rod 408. A number of anti-slip spikes 405 are fixedly connected to the bottom surface of the support plate 404. The anti-slip spikes 405 are evenly distributed on the bottom surface of the support plate 404, which increases the grip of the support plate 404 with the ground and improves stability.

[0031] The working principle of the earthwork excavation safety protection device provided by the present invention is as follows: when earthwork is excavated, rolling stones often roll from the hillside to the foot of the slope. In order to improve the safety of the transportation channel during use, a safety protection structure is often set up at the construction site. First, the first protective plate 1 is inserted into the ground through the fixing nail 2, and then the limiting plate 310 on the side of the second protective plate 5 is aligned with the limiting groove 311 on the side of the first protective plate 1 and inserted therein, and then the second protective plate 5 is inserted downward into the ground through the fixing nail 2, and then the rotating column 302 is rotated toward the fixing block 304. During this process, the torsional force generated by the coil spring 303 can squeeze and limit the position of the rotating column 302, thereby preventing the position of the rotating column 302 from shaking, and then the slider 306 is slid toward the fixing block 304, and the fixing column 307 on the surface of the slider 306 slides into the fixing hole 305, and then the rotating ring 309 is rotated until the rotating ring 309 gives the slider 306 a continuous elastic force by squeezing the auxiliary ring 308, thereby achieving a fixing effect between the first protective plate 1 and the second protective plate 5.

[0032] After the first protective plate 1 and the second protective plate 5 are spliced and fixed, pull the pull ring 410 upwards. When the pull ring 410 drives the limit rod 408 to slide out of the limit hole 406, the spring 409 is in an extended state during this process. Then slide the support rod 403 out from the inner wall of the rotating tube 402 to a suitable position, release the pull ring 410. At this time, the limit rod 408 is brought into the limit hole 406 under the contraction force of the spring 409, thereby achieving the fixing effect between the support rod 403 and the rotating tube 402. Then rotate the rotating tube 402 until the support plate at one end of the support rod 403 contacts the ground, thereby achieving the fixing effect between the first protective plate 1 and the second protective plate 5 and the ground.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A safety protection device for earthwork excavation, comprising a first protection plate (1) and a second protection plate (5), characterized in that: The bottom surfaces of the first protective plate (1) and the second protective plate (5) are fixedly connected with a plurality of fixing nails (2), the surface of the first protective plate (1) is provided with a fixing device (3), the fixing device (3) comprises a first rotating frame (301), the first rotating frame (301) is fixedly connected to the surface of the first protective plate (1), the inner wall of the first rotating frame (301) is rotatably connected to a rotating column (302), the arc surface of the rotating column (302) away from one end of the first rotating frame (301) is slidably connected to a slider (306), and the slider (306) at one end is Both sides are fixedly connected with fixed columns (307), a fixed block (304) is fixedly connected to the position of the rotating column (302) on the surface of the second protective plate (5), the inner wall of the fixed block (304) is slidably connected to the arc surface of the rotating column (302), a fixing hole (305) is opened on the surface of the fixed block (304) at a position corresponding to the fixed column (307), the inner wall of the fixing hole (305) is slidably connected to the inner wall of the fixed column (307), and a rotating ring (309) is threadedly connected to the arc surface of one end of the rotating column (302) away from the first rotating frame (301).

2. The earthwork excavation safety protection device according to claim 1, characterized in that: An auxiliary ring (308) is slidably connected to the arc surface at one end of the rotating column (302), and the auxiliary ring (308) is an elastic rubber ring.

3. The earthwork excavation safety protection device according to claim 1, characterized in that: A coil spring (303) is slidably connected to the inner wall of the first rotating frame (301), and two ends of the coil spring (303) are fixedly connected to the first rotating frame (301) and the rotating column (302), respectively.

4. The earthwork excavation safety protection device according to claim 1, characterized in that: The side of the second protective plate (5) is fixedly connected to the limiting plate (310), and a limiting groove (311) is provided on the side of the first protective plate (1) at a position corresponding to the limiting plate (310), and the inner wall of the limiting groove (311) is slidably connected to the surface of the limiting plate (310).

5. The earthwork excavation safety protection device according to claim 1, characterized in that: The surfaces of the first protective plate (1) and the second protective plate (5) are provided with a supporting device (4), and the supporting device (4) comprises two second rotating frames (401), and the two second rotating frames (401) are fixedly connected to the side surfaces of the first protective plate (1) and the second protective plate (5), respectively. The inner wall of the second rotating frame (401) is rotatably connected to a rotating tube (402), and the inner wall of the rotating tube (402) is slidably connected to a supporting rod (403), and the end of the supporting rod (403) away from the second rotating frame (401) is rotatably connected to a supporting plate (404), and the rotating tube (402) is rotatably connected to the supporting plate (404). A fixed frame (407) is fixedly connected to the surface of one end of the second rotating frame (402) away from the second rotating frame (401), and the inner wall of the fixed frame (407) slides through the limiting rod (408), and the arc surface of the limiting rod (408) is slidably connected to a spring (409), and the two ends of the spring (409) are respectively fixedly connected to the limiting rod (408) and the fixed frame (407), and a plurality of limiting holes (406) are evenly opened on the surface of the support rod (403) at positions corresponding to the limiting rod (408), and the inner wall of the limiting hole (406) is slidably connected to the arc surface of the limiting rod (408).

6. The earthwork excavation safety protection device according to claim 5, characterized in that: One end of the limiting rod (408) is fixedly connected to a pull ring (410), and the cross-section of the pull ring (410) is circular.

7. The earthwork excavation safety protection device according to claim 5, characterized in that: A plurality of anti-slip spikes (405) are fixedly connected to the bottom surface of the support plate (404), and the plurality of anti-slip spikes (405) are evenly distributed on the bottom surface of the support plate (404).

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