A green and environment-friendly safety protection device for foundation pits in engineering

Abstract

The present invention relates to the field of foundation pit protection, and discloses a green and environment-friendly safety protection device for engineering foundation pits, including a protection device body installed on the foundation pit, which is arranged in an array on the foundation pit. The lower part of the protection device body is obliquely inserted into the inner surface of the foundation pit, and a vertical protection plate with an "h" - shaped structure is arranged on the outer side of the upper part of the protection device body. Heavy objects are filled and compacted at the lower part of the vertical protection plate. Driven by a cylinder, the position of the inclined insertion plate can be flexibly adjusted according to the actual size and shape of the foundation pit. This adjustable design enables the protection device to adapt to foundation pits of different sizes and shapes without large-scale modification of the device. For example, in the case of a relatively narrow or shallow foundation pit, the telescopic degree of the cylinder can be adjusted to make the inclined insertion plate fit the inner surface of the foundation pit, so as to achieve the protection effect.

Description

Technical Field

[0001] The present invention relates to the field of foundation pit protection, and specifically to a green and environment-friendly safety protection device for engineering foundation pits. Background Art

[0002] During work operations, the protection of foundation pits is generally carried out by using protective fences for concealment. Most of the protective fences are directly stacked beside the foundation pits. Although they can protect the surrounding area of the foundation pits, there is no fixed structure between the protective fences. When pedestrians cross the fences due to objective factors such as chasing, running, pushing, etc., there is still a risk of falling into the foundation pits. Summary of the Invention

[0003] The present invention provides a green and environment-friendly safety protection device for engineering foundation pits, which overcomes the deficiencies described in the background art.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0005] A green and environment-friendly safety protection device for engineering foundation pits includes a protection device body installed on the foundation pit, which is arranged in an array on the foundation pit. The lower part of the protection device body is obliquely inserted into the inner surface of the foundation pit, and a vertical protection plate in an h-shaped structure is arranged on the outer side of the upper part of the protection device body. Heavy objects are filled and compacted at the lower part of the vertical protection plate;

[0006] The protection device body includes a mounting plate body, an extension part, and an inclined load-bearing mechanism. The vertical protection plate is fixed at the end of the mounting plate body. The extension part is clamped on the side of the mounting plate body away from the vertical protection plate. The inclined load-bearing mechanism is arranged below the mounting plate body. The vertical protection plate is fixed to the ground near the perimeter of the foundation pit. The mounting plate body extends towards the middle of the foundation pit, and the extension part covers the upper part of the foundation pit. When installing the protection device body, the inclined load-bearing mechanism is obliquely inserted into the inner surface of the foundation pit;

[0007] An adjustment groove is arranged on the surface of the mounting plate body, and the adjustment groove extends from the middle of the mounting plate body towards the side of the mounting plate body away from the vertical protection plate. A cylinder is arranged at the corresponding position of the lower side of the extension part and the adjustment groove. One end of an inclined insertion plate is connected to the cylinder, and the other end is connected to the side of the mounting plate body close to the vertical protection plate;

[0008] Neither end of the inclined insertion plate abuts against the mounting plate body. Both ends of the cylinder are respectively connected to the extension part and the inclined insertion plate through rotating shafts. When the cylinder contracts its output shaft, the inclined insertion plate moves towards the cylinder and shortens the distance between it and the mounting plate body.

[0009] A preferred technical solution is that a filling mechanism is arranged between the mounting plate body and the cylinder. The filling mechanism includes an airbag, a rubber block and a resisting plate. The airbag covers the surface of the resisting plate. One end of the airbag is connected to the end of the resisting plate, and the other end is connected to the resisting plate through the rubber block. A one-way valve for filling air is arranged on the surface of the airbag. The resisting plate is an L-shaped bent structure, and the rubber block is arranged on one side of the resisting plate close to the bending part. When the filling mechanism is arranged at the lower end of the mounting plate body, the resisting plate abuts against the surface of the cylinder, and the rubber block abuts against the end of the inclined insertion plate.

[0010] The one-way valve fills air into the airbag through an external air compressor to make the airbag expand, and jacks up the inclined insertion plate through the rubber block and the resisting plate.

[0011] A preferred technical solution is that the extension part includes a fixed plate monomer and a movable plate. The movable plate is connected to the end of the fixed plate monomer through a rotating shaft. A C-shaped buckling part is arranged on the side of the fixed plate monomer away from the vertical protection plate. When the movable plate is unfolded, it abuts against the surface of the buckling part of the fixed plate monomer.

[0012] The end of the movable plate away from the mounting plate body is connected to one end of the inclined insertion plate away from the movable plate through a connecting rope. When the cylinder pushes the inclined insertion plate into the inner side of the foundation pit, the inclined insertion plate pulls and tightens the connecting rope.

[0013] A preferred technical solution is that the vertical protection plate includes a railing plate body and a weight-bearing plate. An extension part extending downward obliquely is arranged on the side of the railing plate body. The weight-bearing plate is inserted into the extension part from bottom to top. A clamping groove is arranged in the extension part, and a plurality of positioning holes are arranged on the surface of the weight-bearing plate. When the weight-bearing plate is inserted into the lower end of the extension part, it is fixed by a rivet passing through the positioning holes and the clamping groove in sequence.

[0014] A preferred technical solution is that the weight-bearing plate protrudes from the side of the inclined insertion plate. The lower part of the weight-bearing plate is in a bent structure and extends toward the side away from the mounting plate body.

[0015] A cavity for filling heavy objects is arranged between the extension part and the railing plate body, and the height of the lower end surface of the weight-bearing plate is lower than the height of the lower end surface of the mounting plate body.

[0016] Compared with the prior art, this technical solution has the following advantages:

[0017] Driven by the cylinder, the position of the inclined insertion plate can be flexibly adjusted according to the actual size and shape of the foundation pit. This adjustable design enables the protection device to adapt to foundation pits of different sizes and shapes without large-scale modification of the device. For example, in the case of a narrow or shallow foundation pit, the telescopic degree of the cylinder can be adjusted to make the inclined insertion plate fit the inner surface of the foundation pit, so as to achieve the protection effect. Description of the Drawings

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 This is the overall diagram of the present invention.

[0020] Figure 2 is Figure 1 a schematic diagram of.

[0021] Figure 3 This is a schematic diagram of the main body of the protection device.

[0022] Figure 4 is Figure 3 a side view schematic diagram.

[0023] Figure 5 This is a schematic diagram of the filling mechanism.

[0024] Figure 6 is Figure 4 a three-dimensional schematic diagram.

[0025] Figure 7 is Figure 6 a schematic diagram from another angle.

[0026] Figure 8 This is a schematic diagram of the vertical protection plate.

[0027] Figure 9 This is a schematic diagram of the adjustment process of the load-bearing plate.

[0028] In the figure: the main body of the protection device 1;

[0029] the mounting plate body 11, the extension part 12, the vertical protection plate 13, the inclined load-bearing mechanism 14, the filling mechanism 15;

[0030] the adjustment groove 111;

[0031] the fixed plate monomer 121, the movable plate 122;

[0032] the railing plate body 131, the extension part 1311, the card slot 1312, the rivet 1313, the load-bearing plate 132, the positioning hole 1321;

[0033] the inclined insertion plate 141, the cylinder 142;

[0034] the airbag 151, the rubber block 152, the abutting plate 153, the one-way valve 154; Specific embodiments

[0035] As Figures 1 to 9As shown, the present invention proposes a green and environmentally friendly engineering foundation pit safety protection device, including a protection device body 1 installed on the foundation pit, which is arranged in an array on the foundation pit. The lower part of the protection device body 1 is obliquely inserted into the inner surface of the foundation pit, and the upper outer part of the protection device body 1 is provided with an H-shaped vertical protection plate 13, and the lower part of the vertical protection plate 13 is filled and compacted with a heavy object;

[0036] The protective device body 1 includes a mounting plate body 11, an extension portion 12, an inclined load-bearing mechanism 14, and the vertical protective plate 13 is fixed to the end of the mounting plate body 11. The extension portion 12 is clamped on the side of the mounting plate body 11 away from the vertical protective plate 13. The inclined load-bearing mechanism 14 is arranged below the mounting plate body 11. The vertical protective plate 13 is fixed to the ground near the foundation pit. The mounting plate body 11 extends toward the middle of the foundation pit, and the extension portion 12 covers the top of the foundation pit. When the protective device body 1 is installed, the inclined load-bearing mechanism 14 is tilted and inserted into the inner surface of the foundation pit; the surface of the mounting plate body 11 is provided with an adjustment groove 111, and the adjustment groove 111 is adjusted from the mounting plate body 11 to the bottom of the foundation pit. The middle portion of the mounting plate body 11 extends toward the side of the mounting plate body 11 away from the vertical protective plate 13. A cylinder 142 is provided on the lower side of the extension portion 12 corresponding to the adjustment slot 111. One end of the oblique insert 141 is connected to the cylinder 142, while the other end is connected to the side of the mounting plate body 11 close to the vertical protective plate 13 through a 143. Both ends of the oblique insert 141 do not abut against the mounting plate body 11. The two ends of the cylinder 142 are respectively connected to the extension portion 12 and the oblique insert 141 through a rotating shaft. When the cylinder 142 retracts the output shaft, the oblique insert 141 moves toward the cylinder 142 and shortens the distance between it and the mounting plate body 11.

[0037] Driven by the cylinder 142, the oblique insert 141 can adjust its distance from the mounting plate 11 as needed. When the oblique insert 141 is inserted into the inner surface of the foundation pit, it forms an oblique support structure with the inner wall of the foundation pit. This oblique support structure can transmit the reaction force of the foundation pit side wall to the entire protective device body 1, thereby enhancing the overall stability of the protective device and making it less likely to topple or shift when subjected to external forces such as pedestrian collisions. Because the extension 12 covers the top of the foundation pit and the oblique insert 141 can extend toward the center of the foundation pit, the coverage area of the protective device body 1 is expanded. This structural design enables the protective device to better protect the area above the foundation pit, preventing pedestrians or objects from accidentally falling into the foundation pit. Moreover, driven by the cylinder 142, the position of the oblique insert 141 can be flexibly adjusted according to the actual size and shape of the foundation pit. This adjustable design allows the protective device to adapt to foundation pits of different sizes and shapes without requiring large-scale modifications to the device. For example, when the foundation pit is narrow or shallow, the degree of extension and contraction of the cylinder 142 can be adjusted so that the oblique insert plate 141 can adapt to the inner surface of the foundation pit, thereby achieving a protective effect.

[0038] Among them, a filling mechanism 15 is arranged between the mounting plate body 11 and the air cylinder 142. The filling mechanism 15 includes an airbag 151, a rubber block 152 and a resisting plate 153. The airbag 151 covers the surface of the resisting plate 153. One end of the airbag 151 is connected to the end of the resisting plate 153, and the other end is connected to the resisting plate 153 through the rubber block 152. A one-way valve 154 for filling air is arranged on the surface of the airbag 151. The resisting plate 153 is an L-shaped bent structure. The rubber block 152 is arranged on one side of the resisting plate 153 close to the bent part. When the filling mechanism 15 is arranged at the lower end of the mounting plate body 11, the resisting plate 153 abuts against the surface of the air cylinder 142, and the rubber block 152 abuts against the end of the inclined plug board 141. The one-way valve 154 fills the airbag 151 with air through an external air compressor to make the airbag 151 expand, and jacks up the inclined plug board 141 through the rubber block 152 and the resisting plate 153. The working principle is as follows:

[0039] After the protection device body 1 is installed, the filling mechanism 15 is installed into the inclined load-bearing mechanism 14. The specific operation is to place the L-shaped bent resisting plate 153 at the lower end of the mounting plate body 11 so that it abuts against the surface of the air cylinder 142. At the same time, the rubber block 152 abuts against the end of the inclined plug board 141. The airbag 151 covers the surface of the resisting plate 153. One end of it is connected to the end of the resisting plate 153, and the other end is connected to the resisting plate 153 through the rubber block 152. Through an external air compressor, air is injected into the airbag 151 through the one-way valve 154. As the airbag 151 expands, its volume increases, pushing the rubber block 152 and the resisting plate 153 to move downward. Since the rubber block 152 is in contact with the end of the inclined plug board 141, the expansion force of the airbag 151 is transmitted to the inclined plug board 141 through the rubber block 152, causing it to be jacked up. When the air cylinder 142 contracts the output shaft, the inclined plug board 141 will move towards the air cylinder 142. At this time, the filling mechanism 15 plays a key role. Since the airbag 151 has expanded and filled the space between the inclined plug board 141 and the mounting plate body 11, the rubber block 152 and the resisting plate 153 will form a certain supporting and buffering effect with the inclined plug board 141. This supporting effect can effectively limit the swing-back angle of the inclined plug board 141, prevent it from swinging or retracting excessively, and thus ensure the stable insertion of the inclined plug board 141 on the inner surface of the foundation pit. In actual use, the filling mechanism 15 not only plays a fixing and limiting role during installation, but also provides buffering when the protection device is impacted by external forces. For example, when a pedestrian accidentally collides with the protection device, the elasticity of the airbag 151 can absorb part of the impact force, reduce the damage to the inclined plug board 141 and the inner wall of the foundation pit, and at the same time maintain the stability of the device.

[0040] The filling mechanism 15 restricts the swing-back angle of the inclined insertion plate 141 through the inflation of the airbag 151 and the support of the rubber block 152. This design ensures the stable insertion of the inclined insertion plate 141 on the inner surface of the foundation pit. Even when subjected to external force impacts, it will not easily shift or retract, which is in sharp contrast to the instability of traditional protective fences, greatly improving the reliability of the protective device. The elastic characteristics of the airbag 151 enable it to absorb impact forces when subjected to external forces, reducing damage to the inclined insertion plate 141 and the inner wall of the foundation pit. This buffering effect not only protects the device itself but also avoids loosening or damage of the device caused by external force impacts, thereby further enhancing the stability of the protective device. Moreover, the filling mechanism 15 can be dynamically adjusted according to actual needs. By controlling the inflation volume of the airbag 151, the insertion depth and angle of the inclined insertion plate 141 can be adjusted to better adapt to foundation pits of different sizes and shapes. This flexibility and adaptability are not possessed by traditional protective fences, effectively improving the practicality and safety of the protective device

[0041] Further, the extension part 12 includes a fixed plate unit 121 and a movable plate 122. The movable plate 122 is connected to the end of the fixed plate unit 121 through a rotating shaft. A C-shaped fastening part is arranged on the side of the fixed plate unit 121 away from the vertical protection plate 13. A 1221 is arranged on the side of the movable plate 122 close to the fastening part. When the movable plate 122 is unfolded, 1221 abuts against the surface of the fastening part of the fixed plate unit 121; the end of the side of the movable plate 122 away from the mounting plate body 11 is connected to one end of the inclined insertion plate 141 away from the movable plate 122 through a connecting rope. When the air cylinder 142 pushes the inclined insertion plate 141 to embed into the inner side surface of the foundation pit, the inclined insertion plate 141 pulls and tightens the connecting rope

[0042] In the foundation pit safety protection device, the stability of the movable plate 122 is significantly improved through the linkage mechanism between the connecting rope and the inclined insertion plate 141. When the air cylinder 142 pushes the inclined insertion plate 141 to embed into the inner side surface of the foundation pit, the inclined insertion plate 141 will pull the connecting rope, making it in a tightened state. This tightened connecting rope exerts a downward pulling force on the movable plate 122, firmly fixing the movable plate 122 on the fixed plate unit 121. Since the movable plate 122 is connected to the fixed plate unit 121 through a rotating shaft, this pulling force not only restricts the upward flipping of the movable plate 122 but also further enhances the bonding strength between it and the fixed plate unit 121 through the abutting relationship between the fastening part and 1221. This structural design enables the movable plate 122 to remain stable when subjected to external force impacts, not easily loosening or shifting, thereby effectively improving the stability and reliability of the entire protection device and ensuring the safety protection effect of the area above the foundation pit

[0043] Further, the vertical protection plate 13 includes a railing plate body 131 and a load-bearing plate 132. An extension part 1311 extending obliquely downward is provided on the side surface of the railing plate body 131. The load-bearing plate 132 is inserted into the extension part 1311 from bottom to top. A clamping groove 1312 is provided in the extension part 1311. A plurality of positioning holes 1321 are arranged on the surface of the load-bearing plate 132. When the load-bearing plate 132 is inserted into the lower end of the extension part 1311, it is fixed by a rivet 1313 passing through the positioning holes 1321 and the clamping groove 1312 in sequence. The load-bearing plate 132 protrudes from the side surface of the inclined insertion plate 141. The lower part of the load-bearing plate 132 is in a bent structure, and the lower part of the load-bearing plate 132 extends toward the side away from the mounting plate body 11;

[0044] A cavity for filling heavy objects is provided between the extension part 1311 and the railing plate body 131, and the height of the lower end surface of the load-bearing plate 132 is lower than the height of the lower end surface of the mounting plate body 11;

[0045] The load-bearing plate 132 is fixed to the railing plate body l31 by being inserted into the extension part 1311 and using the rivet 1313. The design of the plurality of positioning holes 1321 allows the insertion depth of the load-bearing plate 132 to be adjusted according to actual needs, so as to adapt to the sizes and protection requirements of different foundation pits. The rivet 1313 penetrates through the positioning holes 1321 and the clamping groove 1312 to ensure a firm connection between the load-bearing plate 132 and the extension part 1311 and prevent loosening caused by external impact. The cavity between the extension part 1311 and the railing plate body 131 is used to fill heavy objects such as sand, stones or concrete. These heavy objects are supported and fixed by the bent structure at the lower part of the load-bearing plate 132, increasing the weight and stability of the vertical protection plate 13. The height of the lower end surface of the load-bearing plate 132 is lower than the height of the lower end surface of the mounting plate body 11, so that the heavy objects can be better distributed at the bottom of the entire protection device, further lowering the center of gravity of the device and enhancing its anti-overturning ability.

[0046] The above is only a preferred embodiment of the present invention, and thus the scope of implementation of the present invention cannot be limited thereby. That is, equivalent changes and modifications made according to the scope of the present invention patent and the content of the specification should still fall within the scope covered by the present invention.

Claims

1. A green and environment-friendly safety protection device for foundation pits in engineering, characterized in that, It includes a protection device body installed on the foundation pit, which is arranged in an array on the foundation pit. The lower part of the protection device body is obliquely inserted into the inner surface of the foundation pit, and a vertical protection plate with an "h" - shaped structure is arranged on the outer side of the upper part of the protection device body. Heavy objects are filled and compacted at the lower part of the vertical protection plate; The protection device body includes a mounting plate body, an extension part, an inclined load - bearing mechanism. The vertical protection plate is fixed at the end of the mounting plate body. The extension part is clamped on the side of the mounting plate body away from the vertical protection plate. The inclined load - bearing mechanism is arranged below the mounting plate body. The vertical protection plate is fixed on the ground near the perimeter of the foundation pit. The mounting plate body extends towards the middle of the foundation pit, and the extension part covers above the foundation pit. When installing the protection device body, the inclined load - bearing mechanism is obliquely inserted into the inner surface of the foundation pit; Adjustment grooves are arranged on the surface of the mounting plate body, and the adjustment grooves extend from the middle of the mounting plate body towards the side of the mounting plate body away from the vertical protection plate. A cylinder is arranged at the corresponding position of the lower side of the extension part and the adjustment groove. One end of the inclined insertion plate is connected to the cylinder, and the other end is connected to the side of the mounting plate body close to the vertical protection plate; Both ends of the inclined insertion plate do not abut against the mounting plate body. The two ends of the cylinder are respectively connected to the extension part and the inclined insertion plate through rotating shafts. When the cylinder contracts its output shaft, the inclined insertion plate moves towards the cylinder and shortens the distance between it and the mounting plate body; A filling mechanism is arranged between the mounting plate body and the cylinder. The filling mechanism includes an airbag, a rubber block and a resisting plate. The airbag covers the surface of the resisting plate. One end of the airbag is connected to the end of the resisting plate, and the other end is connected to the resisting plate through the rubber block. A one - way valve for filling air is arranged on the surface of the airbag. The resisting plate is an L - shaped bent structure. The rubber block is arranged on the side of the resisting plate close to the bent part. When the filling mechanism is arranged at the lower end of the mounting plate body, the resisting plate abuts against the surface of the cylinder, and the rubber block abuts against the end of the inclined insertion plate; The one - way valve fills the airbag with air through an external air compressor to make the airbag expand, and jacks up the inclined insertion plate through the rubber block and the resisting plate.

2. The green and environment-friendly safety protection device for foundation pits in engineering according to claim 1, characterized in that, The extension part includes a fixed - plate unit body and a movable plate. The movable plate is connected to the end of the fixed - plate unit body through a rotating shaft. A buckling part in a "C" shape is arranged on the side of the fixed - plate unit body away from the vertical protection plate. A... is arranged on the side of the movable plate close to the buckling part. When the movable plate is unfolded, it abuts against the surface of the buckling part of the fixed - plate unit body; The end of the side of the movable plate away from the mounting plate body is connected to one end of the inclined insertion plate away from the movable plate through a connecting rope. When the cylinder pushes the inclined insertion plate to embed into the inner side of the foundation pit, the inclined insertion plate pulls and tightens the connecting rope.

3. A green and environment-friendly safety protection device for foundation pits in engineering according to claim 1 or 2, characterized in that, The vertical protection plate includes a railing plate body and a load - bearing plate. An extension part extending downward obliquely is arranged on the side of the railing plate body. The load - bearing plate is inserted into the extension part from bottom to top. Card slots are arranged in the extension part. A plurality of positioning holes are arranged on the surface of the load - bearing plate. When the load - bearing plate is inserted into the lower end of the extension part, it is fixed by passing a rivet through the positioning holes and the card slots in sequence.

4. A green and environmentally friendly safety protection device for foundation pits in engineering according to claim 3, characterized in that, The load - bearing plate protrudes from the side of the inclined insertion plate. The lower part of the load - bearing plate is in a bent structure, and the lower part of the load - bearing plate extends towards the side away from the mounting plate body; A cavity for filling heavy objects is provided between the extension part and the parapet plate body, and the height of the lower end surface of the load-bearing plate is lower than the height of the lower end surface of the mounting plate body.

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