Earth excavation foundation pit protection device with positioning and supporting functions

Abstract

The utility model discloses an earth excavation foundation pit protection device capable of being positioned and supported, and relates to the technical field of foundation pit protection devices, the earth excavation foundation pit protection device comprises a protection plate, fixed ground inserts, insertion blocks and splicing blocks, the fixed ground inserts are welded on the two sides of the bottom end of the protection plate, the two insertion blocks are fixed on one side of the protection plate, and the splicing blocks are fixed on the other side of the protection plate. And two splicing blocks are fixed on the other side of the protection plate. The adjusting rod is screwed to drive the moving plate to move horizontally, on one hand, the adjusting rod can extend out of the protection plate conveniently, so that the adjusting rod can be inserted into soil around a foundation pit to increase the contact force between the protection plate and the foundation pit, and on the other hand, the moving rod descends under the action of the push block and the sliding block, so that the foundation pit is protected. And thus, the descending block pushes the moving block to do horizontal movement, then the fixing rod can stretch out of the interior of the fixing ground insert conveniently, the soil grabbing capacity of the fixing ground insert is improved, and then the stability of the protection plate during use is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of foundation pit protection devices, and in particular to a positioning and supportable foundation pit protection device for earthwork excavation. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the foundation elevation and foundation plane dimensions. Protective devices are required when excavating an excavation pit to effectively ensure that the excavation can proceed normally and safely, thereby reducing the occurrence of safety accidents.

[0003] In a construction excavation pit protection device (announcement number CN222184363U), to address the limitations of existing technologies in the use of protective netting as the depth or width of the excavation pit changes according to modern construction specifications, a construction excavation pit protection device is developed. The device comprises a protective net, mounting posts, a reinforcing device, and a strengthening device. The mounting posts are located at the bottom of the protective net, the reinforcing device is located on one side of the protective net and slidably connected to it, and a fastening device is fixedly installed at the top of the protective net. The protective net and the reinforcing device are locked together via the fastening device. The strengthening device is fixedly installed at the lower part of the protective net. This allows the protective net to be easily adjusted in height according to the different excavation specifications during construction, thus better adapting to construction needs, improving the convenience and functionality of the protective net, and further enhancing the construction efficiency of the excavation pit.

[0004] However, the above-mentioned construction earthwork excavation pit protection device still has the following defects when used: When the above-mentioned existing technology is used, the reinforcing frame is inserted into the soil by turning the knob under the action of the screw, so that the protective net is installed more stably. However, in actual use, the soil gripping ability of the reinforcing frame is not strong enough, resulting in poor stability. Consequently, it is easy to tip over during use, which poses certain safety hazards. Utility Model Content

[0005] The purpose of this invention is to provide a positioning and supportable earthwork excavation pit protection device to solve the problem of poor stability of existing earthwork excavation pit protection devices mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning and supportable earthwork excavation pit protection device, comprising a protective plate, fixed ground plugs, plug blocks, and splicing blocks. Fixed ground plugs are welded to both sides of the bottom end of the protective plate, two plug blocks are fixed to one side of the protective plate, and two splicing blocks are fixed to the other side of the protective plate.

[0007] Both of the splicing blocks have slots inside, and each splicing block has a limit mechanism at its top. Each insert block has a limit hole inside. Two support rods are fixed on one side of the protective plate, and hinge blocks are hinged to both sides of the support rods. A support plug is fixed on one side of one of the hinge blocks. An adjustment mechanism is provided inside the protective plate. Two limit rings are fixed inside the fixed plug, and movable blocks are slidably provided on both sides of the top of the limit rings. A fixing rod is fixed on one side of each movable block.

[0008] When using a positioning and supportable earthwork excavation pit protection device according to this technical solution, the stability of the protective plate can be improved during use by setting an adjustment mechanism under the action of the moving block and the fixed rod, thereby preventing it from tipping over.

[0009] Preferably, the adjusting mechanism includes a movable plate, and a guide block is fixed to the top of the movable plate. A guide groove is provided on the outer side of the guide block and is opened inside the protective plate. Insert rods are evenly arranged on one side of the movable plate. An adjusting rod passes through the interior of the movable plate. Two push blocks are fixed to the bottom of the movable plate, and a sliding block is provided on one side of each push block. A movable rod is fixed to the bottom of each sliding block. Lowering blocks are fixed to both sides of each movable rod. A stop block is fixed to the bottom of each movable rod, and a fixing spring is fixed to the bottom of each stop block.

[0010] Preferably, the guide block slides inside the guide groove, and the moving plate is slidably connected to the protective plate through the guide block and the guide groove.

[0011] Preferably, there are two fixing springs, which are symmetrically distributed and both are in a stretched state inside the fixing plug.

[0012] Preferably, the limiting mechanism includes a fixing block, which is disposed at the top of the splicing block. A baffle is disposed inside the fixing block, a limiting rod is fixed at the bottom end of the baffle, a pull rod is disposed at the top end of the baffle, and a return spring is evenly wound around the outside of the pull rod.

[0013] Preferably, the baffle has a circular cross-section, and the outer edge of the baffle slides against the inner wall of the fixing block.

[0014] Preferably, the movable blocks are provided in two sets, each set having two movable blocks, and each set of movable blocks has a slider fixed at its bottom end, with a groove provided on the outer side of each slider.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the positioning and supportable earthwork excavation pit protection device not only improves its stability, but also facilitates splicing and installation;

[0016] 1. By turning the adjusting rod, the moving plate is driven to move horizontally. On the one hand, it is easy to extend the adjusting rod from the inside of the protective plate, so that the adjusting rod can be inserted into the soil around the foundation pit to increase the contact force between the protective plate and the foundation pit. On the other hand, under the action of the push block and the sliding block, the moving rod moves downward, so that the descending block pushes the moving block to move horizontally, which in turn makes it easy to extend the fixing rod from the inside of the fixed ground plug to improve the soil gripping ability of the fixed ground plug, thereby improving the stability of the protective plate during use.

[0017] 2. By pushing the protective plate, the insert block on one side of the protective plate is inserted into the splicing block on the other side of the protective plate. During the insertion process, the pull rod is pulled to retract the limiting rod into the fixed block until the insert block and the splicing block are in contact with each other. Then the pull rod is released and the limiting rod is inserted into the limiting hole under the action of the return spring and the baffle. The above operation facilitates the splicing and installation of multiple protective plates, thereby improving the efficiency of splicing and installation.

[0018] 3. The hinge block facilitates the adjustment of the support rod angle. After adjustment, the support plug is inserted into the soil. The above operation facilitates the positioning and support of the protective plate, thereby enhancing its stability and firmness during use, preventing it from tipping over, and thus improving the safety of the foundation pit excavation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0021] Figure 2 This is a partial sectional view of the structure of this utility model from the side.

[0022] Figure 3 This is a top view cross-sectional structural diagram of the present invention;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the main cross-section of the fixed ground plug of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the limiting mechanism of this utility model;

[0025] Figure 6 This is a three-dimensional structural schematic diagram of the front cross-section of the limiting ring of this utility model.

[0026] The following are the annotations in the attached figures: 1. Protective plate; 2. Support rod; 3. Hinge block; 4. Supporting ground plug; 5. Fixed ground plug; 6. Fixed rod; 7. Adjusting mechanism; 701. Sliding block; 702. Push block; 703. Adjusting rod; 704. Insert rod; 705. Guide groove; 706. Guide block; 707. Moving plate; 708. Moving rod; 709. Lowering block; 710. Stop block; 711. Fixed spring; 8. Insert block; 9. Limiting hole; 10. Slot; 11. Splicing block; 12. Limiting mechanism; 1201. Pull rod; 1202. Fixed block; 1203. Limiting rod; 1204. Baffle; 1205. Return spring; 13. Moving block; 14. Limiting ring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Please see Figures 1-6 An embodiment of this utility model is provided: a positioning and supportable earthwork excavation pit protection device, including a protective plate 1, a fixed ground plug 5, a plug block 8, and a splicing block 11. Fixed ground plugs 5 are welded to both sides of the bottom end of the protective plate 1. Two plug blocks 8 are fixed to one side of the protective plate 1, and two splicing blocks 11 are fixed to the other side of the protective plate 1. Slots 10 are opened inside the two splicing blocks 11, and a limit mechanism 12 is provided at the top of the splicing blocks 11.

[0029] The limiting mechanism 12 includes a fixing block 1202, which is located at the top of the splicing block 11. A baffle 1204 is provided inside the fixing block 1202. A limiting rod 1203 is fixed at the bottom of the baffle 1204. A pull rod 1201 is provided at the top of the baffle 1204. A return spring 1205 is evenly wound around the outside of the pull rod 1201.

[0030] The cross-section of the baffle 1204 is circular, and the outer edge of the baffle 1204 slides against the inner wall of the fixing block 1202.

[0031] Specifically, such as Figure 2 , Figure 3 , Figure 5As shown, during use, the return spring 1205 resets and pushes the baffle 1204 to move downward, thereby allowing the limit rod 1203 to be inserted into the limit hole 9. The above operation facilitates the splicing and installation of multiple protective plates 1, thereby improving the installation efficiency.

[0032] Limiting holes 9 are provided inside the insert 8. Two support rods 2 are fixed on one side of the protective plate 1, and hinge blocks 3 are hinged on both sides of the support rods 2. A support plug 4 is fixed on one side of one hinge block 3. An adjustment mechanism 7 is provided inside the protective plate 1.

[0033] The adjustment mechanism 7 includes a movable plate 707, and a guide block 706 is fixed at the top of the movable plate 707. A guide groove 705 is provided on the outer side of the guide block 706 and is opened inside the protective plate 1. Insert rods 704 are evenly arranged on one side of the movable plate 707. An adjustment rod 703 passes through the inside of the movable plate 707. Two push blocks 702 are fixed at the bottom of the movable plate 707. A sliding block 701 is provided on one side of each push block 702. A movable rod 708 is fixed at the bottom of each sliding block 701. A descending block 709 is fixed on both sides of each movable rod 708. A stop block 710 is fixed at the bottom of each movable rod 708, and a fixing spring 711 is fixed at the bottom of each stop block 710.

[0034] The guide block 706 slides inside the guide groove 705, and the movable plate 707 is slidably connected to the protective plate 1 through the guide block 706 and the guide groove 705;

[0035] There are two fixing springs 711, which are symmetrically distributed and are both in a stretched state inside the fixing plug 5.

[0036] Specifically, such as Figure 1 , Figure 3 , Figure 4 As shown, during use, by turning the adjusting rod 703, under the action of the moving plate 707, the adjusting rod 703 extends out from the inside of the protective plate 1, thereby increasing the release between the protective plate 1 and the foundation pit. On the other hand, under the action of the push block 702, the sliding block 701 and the moving rod 708, the descending block 709 moves downward. And under the action of the moving block 13, the fixing rod 6 extends out from the inside of the fixed ground plug 5, thereby improving the soil gripping ability of the fixed ground plug 5.

[0037] The fixed ground plug 5 has two limiting rings 14 inside, and the two sides of the top of the limiting rings 14 are slidably provided with moving blocks 13;

[0038] There are two sets of movable blocks 13, and each set of movable blocks 13 has two blocks. Each set of movable blocks 13 has a slider fixed at the bottom, and the slider has a groove on the outside.

[0039] A fixing rod 6 is fixed on one side of each movable block 13;

[0040] Specifically, such as Figure 4 , Figure 6 As shown, during use, the slider slides inside the groove, which facilitates the limiting of the moving block 13 and thus prevents it from shifting position during movement.

[0041] Working Principle: In use, this invention first protects the excavated foundation pit by pushing the protective plate 1, causing the insert block 8 on one side of the protective plate 1 to insert into the splicing block 11. During insertion, the pull rod 1201 is pulled, causing the baffle 1204 to rise. Simultaneously, the baffle 1204 rises, driving the limiting rod 1203 to retract into the fixing block 1202. Meanwhile, the baffle 1204 continues its upward movement... Simultaneously, the return spring 1205 is compressed, causing it to be compressed until the insert block 8 and the splicing block 11 are in contact with each other. Then, the pull rod 1201 is released, causing the compression force on the return spring 1205 to disappear, thus causing the baffle 1204 to move downward. Subsequently, the limiting rod 1203 is inserted into the limiting hole 9. The above operation facilitates the splicing and installation of multiple protective plates 1, thereby facilitating the protection of pits of different lengths and improving its practicality.

[0042] Then, the fixed grounding pin 5 is pushed into the soil inside the pit, and the angle of the support rod 2 is adjusted by the hinge block 3, so that the support grounding pin 4 is inserted into the soil, which facilitates the positioning and support of the protective plate 1. At the same time, the adjusting rod 703 is turned to make the moving plate 707 move horizontally. While the moving plate 707 is moving horizontally, the guide block 706 slides inside the guide groove 705, thereby limiting and guiding the moving plate 707 and improving its stability during movement. While the moving plate 707 is moving horizontally, the adjusting rod 703 moves horizontally in sync, so that the adjusting rod 703 is inserted into the soil inside the pit, thereby increasing the contact force between the protective plate 1 and the pit and preventing the protective plate 1 from being inserted into the pit. When slippage occurs, the horizontal movement of the movable plate 707 causes the push block 702 to move horizontally in sync, thereby pushing the sliding block 701 to descend. This, in turn, causes the movable rod 708 to descend in sync, and the descending rod 708, in turn, drives the descending block 709 to descend in sync, until the descending block 709 and the movable block 13 come into contact with each other. During the continuous turning of the adjusting rod 703, the descending block 709 pushes the movable block 13 to move horizontally, thereby causing the fixed rod 6 to extend from the inside of the fixed ground plug 5, thereby improving the soil gripping ability of the fixed ground plug 5. Through the above operations, the stability of the protective plate 1 installation is improved, thereby preventing it from tilting or moving, and thus improving the safety of the foundation pit excavation.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A positioning and supportable earthwork excavation pit protection device, comprising a protective plate (1), a fixed ground plug (5), a plug block (8), and a splicing block (11), wherein fixed ground plugs (5) are welded to both sides of the bottom end of the protective plate (1), two plug blocks (8) are fixed on one side of the protective plate (1), and two splicing blocks (11) are fixed on the other side of the protective plate (1). Its features are: Both of the splicing blocks (11) have slots (10) inside. Each splicing block (11) has a limit mechanism (12) at its top. Each insert block (8) has a limit hole (9) inside. One side of the protective plate (1) has two support rods (2), and both sides of the support rods (2) are hinged with hinge blocks (3). One side of one of the hinge blocks (3) has a support plug (4). The protective plate (1) has an adjustment mechanism (7) inside. The fixed plug (5) has two limit rings (14) inside, and both sides of the top of the limit rings (14) have sliding blocks (13). One side of each moving block (13) has a fixed rod (6).

2. The positioning and supporting earthwork excavation pit protection device according to claim 1, characterized in that: The adjustment mechanism (7) includes a movable plate (707), and a guide block (706) is fixed at the top of the movable plate (707). A guide groove (705) is provided on the outer side of the guide block (706), and the guide groove (705) is opened inside the protective plate (1). Insert rods (704) are evenly arranged on one side of the movable plate (707). An adjustment rod (703) passes through the interior of the movable plate (707). Two push blocks (702) are fixed at the bottom of the movable plate (707), and a sliding block (701) is provided on one side of each push block (702). A movable rod (708) is fixed at the bottom of each sliding block (701). A descending block (709) is fixed on both sides of each movable rod (708). A stop block (710) is fixed at the bottom of each movable rod (708), and a fixing spring (711) is fixed at the bottom of each stop block (710).

3. The positioning and supporting earthwork excavation pit protection device according to claim 2, characterized in that: The guide block (706) slides inside the guide groove (705), and the moving plate (707) is slidably connected to the protective plate (1) through the guide block (706) and the guide groove (705).

4. The positioning and supporting earthwork excavation pit protection device according to claim 2, characterized in that: There are two fixed springs (711), which are symmetrically distributed and are both in a stretched state inside the fixed plug (5).

5. A positioning and supporting earthwork excavation pit protection device according to claim 1, characterized in that: The limiting mechanism (12) includes a fixing block (1202), and the fixing block (1202) is located at the top of the splicing block (11). The fixing block (1202) has a baffle (1204) inside, a limiting rod (1203) is fixed at the bottom of the baffle (1204), and a pull rod (1201) is located at the top of the baffle (1204). A return spring (1205) is evenly wound around the outside of the pull rod (1201).

6. A positioning and supporting foundation pit protection device for earthwork excavation according to claim 5, characterized in that: The baffle (1204) has a circular cross-section, and the outer edge of the baffle (1204) slides against the inner wall of the fixing block (1202).

7. A positioning and supporting foundation pit protection device for earthwork excavation according to claim 1, characterized in that: The movable block (13) is provided in two sets, and each set of the movable block (13) has two blocks. The bottom end of each set of the movable block (13) is fixed with a slider, and the outer side of the slider is provided with a groove.

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