Earth excavation foundation pit protection device

Abstract

The utility model provides an earth excavation foundation pit protection device, and relates to the technical field of foundation pit protection, the earth excavation foundation pit protection device comprises a cross rod, one side of the cross rod is fixedly connected with a plurality of clamping plates, one side of each clamping plate is provided with a T-shaped clamping groove, the interior of each T-shaped clamping groove is provided with a protection plate structure, and each T-shaped clamping groove is provided with a protection plate. And a plurality of clamping plate structures are arranged on the other side of the cross rod. The protection plate is installed on one side of the transverse rod and the depth of a foundation pit, the length of the connecting rod and the length of the supporting rod are adjusted, then according to the requirements for the soil texture and the depth of the foundation pit, the connecting rod and the side face of the transverse rod form a certain angle, the rotating shaft is embedded into the through groove through the installation groove, and the conical ground insert is inserted into the ground at the bottom of the foundation pit to be fixed. And after use is completed, the supporting rods and the connecting rods are shrunk and disassembled in sequence, then the protection plates are disassembled, through the arrangement, the protection device is disassembled, the structure is simple, and transportation and storage are convenient.

Description

Technical Field

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

[0002] An earthwork foundation pit is a pit excavated 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. Waterproofing and drainage work should be done. For shallow excavations, slope protection can be used to stabilize the soil slope. The slope should be determined according to relevant construction regulations. After excavation, the side walls of the foundation pit need to be protected to prevent landslides and collapses.

[0003] In the prior art, such as the announcement number CN219931860U, a foundation pit safety protection device is disclosed, including a base. A fixed plate is provided at the center of the top of the base, and a buffer protection plate is provided on the top of the base in front of the fixed plate. A buffer mechanism and a damping mechanism are respectively provided between the buffer protection plate and the fixed plate. An anchoring mechanism is provided at each of the four corners of the base. This utility model can not only protect the outside of the foundation pit, but also effectively buffer the impact when encountering external impacts through the buffer protection plate and the buffer mechanism. At the same time, the damping mechanism can prevent the buffer protection plate from vibrating continuously, making the buffering effect more stable.

[0004] However, during use, the aforementioned patented device has limitations because its support angle and size are fixed, making it unsuitable for use in earthwork pits of different widths. The device's applicability is narrow. Furthermore, the device is highly integrated and has a complex structure, making it difficult to disassemble, transport, and store. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a protective device for excavated foundation pits, comprising: a horizontal bar, wherein a plurality of clamping plates are fixedly connected to one side of the horizontal bar, and a T-shaped groove is provided on one side of each of the plurality of clamping plates, and a protective plate structure is provided inside each of the plurality of T-shaped grooves; a plurality of clamping plate structures are provided on the other side of the horizontal bar, and a movable rod structure is provided inside each of the plurality of clamping plate structures, and a support rod structure is provided inside each of the plurality of movable rod structures.

[0007] In a preferred embodiment, the protective plate structure includes a protective plate, one side of which is provided with a plurality of anti-slip grooves, and a T-shaped card plate is fixedly connected to the center of the other side of the protective plate, with the other end of the T-shaped card plate movably embedded inside the T-shaped groove.

[0008] In a preferred embodiment, the card plate structure includes a U-shaped card plate, which is fixedly connected to one side of the crossbar. A through groove is provided on one side of the U-shaped card plate, and an installation groove is provided at the bottom of the inner cavity of the through groove.

[0009] In a preferred embodiment, the movable rod structure includes a rotating shaft that is movably embedded inside the through groove. Both ends of the rotating shaft are fixedly connected to limit plates, which are located on both sides of the U-shaped clamping plate.

[0010] In a preferred embodiment, a connecting rod is fixedly connected to one side of the rotating shaft surface, and a threaded groove is formed on the surface of the other end of the connecting rod extending inward.

[0011] In a preferred embodiment, the support rod structure includes a support rod, one end of which is connected to a threaded rod via a bearing, and the other end of the threaded rod is movably embedded inside a threaded groove.

[0012] In a preferred embodiment, a fixing ring is fixedly sleeved on the surface of one end of the threaded rod, and four handles are fixedly connected around the surface of the fixing ring. A tapered ground plug is fixedly connected to the other end of the support rod.

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

[0014] 1. This utility model involves installing a protective plate on one side of a crossbar. Based on the depth of the foundation pit, the lengths of the connecting rod and the support rod are adjusted. Then, according to the requirements of the foundation pit soil quality and depth, the connecting rod is positioned at a certain angle to the side of the crossbar. The rotating shaft is embedded into the through groove through the mounting groove, and the cone-shaped insert is inserted into the ground at the bottom of the foundation pit for fixation. This design facilitates use for different types of foundation pits, making the protective device more widely applicable.

[0015] 2. After use, the support rod and connecting rod can be retracted and disassembled in sequence, and then the protective plate can be disassembled. This design allows the protective device to be disassembled, resulting in a simple structure that is easy to transport and store. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a foundation pit protection device for earthwork excavation provided by this utility model;

[0017] Figure 2 A bottom view of a foundation pit protection device for earthwork excavation provided by this utility model;

[0018] Figure 3 A schematic diagram of the protective plate structure of a foundation pit protection device for earthwork excavation provided by this utility model;

[0019] Figure 4 A schematic diagram of the slot structure of a foundation pit protection device for earthwork excavation provided by this utility model;

[0020] Figure 5 A schematic diagram of the internal structure of the support rod of a foundation pit protection device for earthwork excavation provided by this utility model.

[0021] Figure 6 A schematic diagram of the connection structure of a foundation pit protection device for earthwork excavation provided by this utility model.

[0022] Legend:

[0023] 1. Crossbar; 2. Clamping plate; 201. T-shaped groove; 3. Protective plate structure; 301. Protective plate; 302. Anti-slip groove; 303. T-shaped clamping plate; 4. Clamping plate structure; 401. U-shaped clamping plate; 402. Through groove; 403. Mounting groove; 5. Movable rod structure; 501. Rotating shaft; 502. Limiting plate; 503. Connecting rod; 504. Threaded groove; 6. Support rod structure; 601. Support rod; 602. Threaded rod; 603. Fixing ring; 604. Handle; 605. Conical ground plug. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This utility model provides a technical solution: a protective device for excavated foundation pits, comprising: a horizontal bar 1, a plurality of clamping plates 2 fixedly connected to one side of the horizontal bar 1, a T-shaped groove 201 opened on one side of each of the clamping plates 2, a protective plate structure 3 provided inside each of the T-shaped grooves 201, a plurality of clamping plate structures 4 provided on the other side of the horizontal bar 1, a movable rod structure 5 provided inside each of the clamping plate structures 4, and a support rod structure 6 provided inside each of the movable rod structures 5.

[0026] Specifically: the crossbar 1 is used to cooperate with the clamping plate 2 to connect multiple protective plate structures 3 in parallel. The protective plate structure 3 is used to fit against the side wall of the pit. The clamping plate structure 4 is used to insert and limit the movable rod structure 5. The movable rod structure 5 and the support rod structure 6 adjust the height of the crossbar 1 and provide support.

[0027] In one embodiment, the protective plate structure 3 includes a protective plate 301. A plurality of anti-slip grooves 302 are provided on one side of the protective plate 301, and a T-shaped card plate 303 is fixedly connected to the center of the other side of the protective plate 301. The other end of the T-shaped card plate 303 is movably embedded in the interior of the T-shaped card slot 201.

[0028] Specifically: the anti-slip groove 302 is used to make one side of the protective plate 301 fit better with the side wall of the pit and prevent slipping. The anti-slip groove 302, together with the T-shaped slot 201, fixes and limits the protective plate 301.

[0029] In one embodiment, the card plate structure 4 includes a U-shaped card plate 401, which is fixedly connected to one side of the crossbar 1. A through groove 402 is provided on one side of the U-shaped card plate 401, and an installation groove 403 is provided at the bottom of the inner cavity of the through groove 402.

[0030] Specifically: the through groove 402 is used to engage the rotating shaft 501, and the mounting groove 403 is used to install the rotating shaft 501.

[0031] In one embodiment, the movable rod structure 5 includes a rotating shaft 501, which is movably embedded inside the through groove 402. Both ends of the rotating shaft 501 are fixedly connected to limit plates 502, which are located on both sides of the U-shaped card plate 401.

[0032] Specifically: the limiting plate 502 is used in conjunction with the U-shaped clamping plate 401 to fix and limit the rotating shaft 501, thereby fixing and limiting the connecting rod 503.

[0033] In one embodiment, a connecting rod 503 is fixedly connected to one side of the surface of the rotating shaft 501, and a threaded groove 504 is provided on the surface of the other end of the connecting rod 503 extending inward.

[0034] Specifically: the limiting plate 502 is used to limit the movement of the support rod 601, and the limiting hole 504 is used to cooperate with the limiting post 605 to fix the support rod 601.

[0035] In one embodiment, the support rod structure 6 includes a support rod 601, one end of which is connected to a threaded rod 602 via a bearing, and the other end of the threaded rod 602 is movably embedded inside the threaded groove 504.

[0036] Specifically: the threaded rod 602 is used to adjust the connection length between the support rod 601 and the connecting rod 503.

[0037] In one embodiment, a fixing ring 603 is fixedly sleeved on the surface of one end of the threaded rod 602, and four handles 604 are fixedly connected around the surface of the fixing ring 603. A tapered ground plug 605 is fixedly connected to the other end of the support rod 601.

[0038] Specifically: When the handle 604 is rotated in the forward direction, the fixing ring 603 drives the threaded rod 602 to rotate, and the threaded rod 602 extends outward along the inside of the threaded groove 504. The conical ground plug 605 is inserted into the ground, and one side of the T-shaped clamp 303 is pressed against the side wall of the pit. When the handle 604 is rotated in the reverse direction, the fixing ring 603 drives the threaded rod 602 to rotate in the reverse direction, and the threaded rod 602 retracts inward along the inside of the threaded groove 504.

[0039] Working principle: When using this anti-slip device for excavating foundation pits, firstly, the T-shaped clamp 303 is inserted into the T-shaped groove 201 from the side, and the protective plate 301 is installed on one side of the crossbar 1. Then, two workers lift both ends of the crossbar 1 and attach the other side of the protective plate 301 to the surface of the foundation pit sidewall. Then, another worker holds the handle 604 and rotates it in the forward direction according to the depth of the foundation pit. The fixing ring 603 drives the threaded rod 602 to rotate, and the threaded rod 602 extends outward along the inside of the threaded groove 504.

[0040] Then, according to the requirements of the foundation pit soil quality and depth, the connecting rod 503 is arranged at a certain angle with the side of the crossbar 1. The rotating shaft 501 is embedded into the inside of the through groove 402 through the mounting groove 403. The handle 604 is rotated in the forward direction again. The fixing ring 603 drives the threaded rod 602 to rotate. The threaded rod 602 continues to extend outward along the inside of the threaded groove 504. The conical ground plug 605 is inserted into the ground. One side of the T-shaped clamp 303 is close to the side wall of the foundation pit. Then, according to the above operation, the connecting rod 503 at the other end is installed, and then the connecting rod 503 in the middle part is installed.

[0041] This design facilitates the use of the protective device for different width types of foundation pits, thus broadening its applicability.

[0042] After use, the staff holds the handle 604 and rotates it in the opposite direction. The fixing ring 603 drives the threaded rod 602 to rotate. The threaded rod 602 retracts inward along the inside of the threaded groove 504. The rotating shaft 501 disengages from the inside of the through groove 402. Repeat the above operation. First, disassemble the middle connecting rod 503. Then, the staff lifts both ends of the crossbar 1 and disassembles the connecting rods 503 at both ends. Finally, place the crossbar 1 on the ground, hold one end of the protective plate 301 and pull it to one side to disengage the T-shaped clamp 303 from the inside of the T-shaped clamp 201. Disassemble the protective plate 301 in sequence.

[0043] This design allows the protective device to be disassembled, resulting in a simple structure that facilitates transportation and storage.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An earth excavation pit protection device, characterized by, include: A crossbar (1) is fixedly connected to one side of a plurality of clamping plates (2). Each of the clamping plates (2) has a T-shaped slot (201) on one side. Each of the T-shaped slots (201) has a protective plate structure (3) inside. The other side of the crossbar (1) has a plurality of clamping plate structures (4). Each of the clamping plate structures (4) has a movable rod structure (5) inside. Each of the movable rod structures (5) has a support rod structure (6) inside.

2. A soil excavation pit protection device according to claim 1, characterized in that: The protective plate structure (3) includes a protective plate (301). A plurality of anti-slip grooves (302) are provided on one side of the protective plate (301). A T-shaped card plate (303) is fixedly connected to the center of the other side of the protective plate (301). The other end of the T-shaped card plate (303) is movably embedded in the interior of the T-shaped card slot (201).

3. A soil excavation pit protection device according to claim 1, wherein: The card plate structure (4) includes a U-shaped card plate (401), which is fixedly connected to one side of the crossbar (1). A through groove (402) is provided on one side of the U-shaped card plate (401), and an installation groove (403) is provided at the bottom of the inner cavity of the through groove (402).

4. A soil excavation pit protection device according to claim 1, characterized in that: The movable rod structure (5) includes a rotating shaft (501), which is movably embedded in the through groove (402). Both ends of the rotating shaft (501) are fixedly connected to limit plates (502), and the two limit plates (502) are located on both sides of the U-shaped card plate (401).

5. A soil excavation pit protection device according to claim 4, wherein: A connecting rod (503) is fixedly connected to one side of the surface of the rotating shaft (501), and a threaded groove (504) is provided on the surface of the other end of the connecting rod (503) extending inward.

6. A soil excavation pit protection device according to claim 5, wherein: The support rod structure (6) includes a support rod (601), one end of which is connected to a threaded rod (602) via a bearing, and the other end of the threaded rod (602) is movably embedded inside a threaded groove (504).

7. A soil excavation pit protection device according to claim 6, wherein: A fixing ring (603) is fixedly sleeved on one end of the threaded rod (602), and four handles (604) are fixedly connected around the surface of the fixing ring (603). A conical ground plug (605) is fixedly connected to the other end of the support rod (601).

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