Foundation pit collapse prevention device

Abstract

The utility model discloses a foundation pit collapse prevention device which comprises a protection plate, a heightening plate is arranged at the top of the protection plate, a positioning block is fixedly connected to the bottom of the heightening plate, a fixing plate is fixedly connected to the top of the protection plate, and a positioning groove matched with the positioning block is formed in the top of the fixing plate. Through the cooperative use of the protection plate, the heightening plate, the positioning block, the fixing plate, the pin and the positioning groove, the effect of conveniently splicing the protection plate and the heightening plate is achieved, so that the device can be suitable for supporting operation of foundation pits with different depths, and the use flexibility of the device is further improved; through cooperative use of a first hinge seat, a supporting rod, a second hinge seat and a first positioning nail, the protection plate is laterally supported, so that the situation that the protection plate topples over due to soil pressure on the inner wall of a foundation pit is effectively prevented, and the use stability and safety of the device are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering construction, in particular to a foundation pit anti-collapse device. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. As an important part of building construction, the space formed after the foundation pit excavation often faces various challenges, including soil pressure, groundwater infiltration, construction disturbance, etc. These may cause the side wall of the foundation pit to become unstable and lead to collapse accidents.

[0003] For example, a foundation pit anti-collapse device (announcement number: CN220035447U), the device includes a protective plate and a first connecting block, the left side of the protective plate is fixedly connected to the first connecting block, the right side of the protective plate is fixedly connected to the second connecting block, the left top of the first connecting block is fixedly connected to a limiting block, the bottom left side of the limiting block is fixedly connected to an insert block, the right top of the second connecting block is provided with a limiting groove, and the bottom left side of the limiting groove is provided with a slot. The utility model solves the problem that the common foundation pit anti-collapse device is inconvenient to assemble, the assembly process is cumbersome, time-consuming and labor-intensive, which not only greatly increases the labor intensity of the staff, but also reduces the construction efficiency, delays the construction progress, and brings great inconvenience to the construction party through the mutual cooperation of the protective plate, the first connecting block, the second connecting block, the limiting block, the insert block, the limiting groove, the slot, the limiting mechanism, the fixed plate, the movable rod, the handle, the baffle, the limiting insert plate, the spring, the fixed block and the limiting mouth.

[0004] But the device still has the following defects:

[0005] When the device is in use, the protective plate only supports horizontal assembly and is not convenient for vertical assembly, resulting in the inability to adapt well to foundation pits of different depths. At the same time, the protective plate has the problem of poor oblique supporting force. In actual use, the protective plate may accidentally tip over due to the soil pressure on the foundation pit wall. Therefore, we need to propose a foundation pit anti-collapse device. Summary of the invention

[0006] The purpose of the utility model is to provide a foundation pit anti-collapse device, aiming to solve the problem that the protective plate in the prior art only supports horizontal assembly and is not convenient for vertical assembly, resulting in the inability to adapt well to foundation pits of different depths. At the same time, the oblique supporting force of the protective plate is poor, and the protective plate may accidentally tip over due to the soil pressure of the foundation pit wall during actual use.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A foundation pit anti-collapse device comprises a protective plate, a heightening plate is arranged on the top of the protective plate, a positioning block is fixedly connected to the bottom of the heightening plate, a fixing plate is fixedly connected to the top of the protective plate, a positioning groove adapted to the positioning block is opened on the top of the fixing plate, and the positioning block is inserted into the inside of the positioning groove and fixed by a pin;

[0009] Two groups of diagonal brace assemblies for strengthening the lateral supporting force of the protective plate are symmetrically arranged on one side wall of the protective plate, and the diagonal brace assembly includes a first hinge seat, and the first hinge seat is fixedly installed on one side wall of the protective plate. A support rod is hinged on one side of the first hinge seat, and a second hinge seat is hinged on the bottom end of the support rod, and a first positioning nail is fixedly connected to the bottom of the second hinge seat.

[0010] Preferably, a first connecting plate is fixedly mounted on one side wall of the protective plate, and a groove is formed on one side wall of the first connecting plate.

[0011] Preferably, a second connecting plate is fixedly connected to a side wall of the protective plate away from the first connecting plate, a protrusion adapted to the groove is fixedly connected to a side wall of the second connecting plate, and the protrusion is inserted into the inside of the groove.

[0012] Preferably, the interior of the groove is symmetrically provided with two groups of clamping components for positioning the protrusion, and the clamping components include a clearance groove, which is opened inside the groove and is connected to the interior of the groove, and a wedge block is slidably inserted into the interior of the clearance groove, one end of the wedge block is fixedly connected to a return spring, and one end of the return spring is fixedly connected to an inner wall of one side of the clearance groove.

[0013] Preferably, slots adapted to the two groups of wedge-shaped blocks are respectively formed at both ends of the protrusion, and one end of the two groups of wedge-shaped blocks is respectively inserted into the inside of the two groups of slots.

[0014] Preferably, the top and bottom ends of the first connecting plate are respectively provided with receiving grooves, one end of the two groups of wedge blocks are respectively fixedly connected with pull rods, one end of the two groups of pull rods respectively penetrates the first connecting plate and is located inside the receiving grooves, and the two groups of pull rods are both slidably connected to the first connecting plate.

[0015] Preferably, two groups of second positioning nails are fixedly connected to the bottom of the protective plate, and the two groups of second positioning nails are symmetrically arranged.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model achieves the effect of facilitating the splicing of the protective plate and the heightening plate by arranging the protective plate, the heightening plate, the positioning block, the fixing plate, the pins and the positioning groove, so that the protective plate and the heightening plate can be applied to foundation pit supporting operations of different depths, which is beneficial to further improve the flexibility of the device. By arranging the first hinge seat, the support rod, the second hinge seat and the first positioning pin for coordinated use, the protective plate is laterally supported, thereby effectively preventing the protective plate from tipping over due to soil pressure on the inner wall of the foundation pit, which is beneficial to further improve the stability and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the shaft side of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the positioning block, the fixing plate and the positioning groove of the utility model.

[0022] In the figure: 1, protective plate; 2, height-increasing plate; 3, positioning block; 4, fixing plate; 5, positioning groove; 6, first connecting plate; 7, groove; 8, second connecting plate; 9, protrusion; 10, clamping assembly; 1001, clearance groove; 1002, wedge block; 1003, return spring; 11, diagonal support assembly; 1101, first hinge seat; 1102, support rod; 1103, second hinge seat; 1104, first positioning pin; 12, slot; 13, receiving slot; 14, pull rod; 15, second positioning pin. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A foundation pit anti-collapse device comprises a protective plate 1, a heightening plate 2 is arranged on the top of the protective plate 1, a positioning block 3 is fixedly connected to the bottom of the heightening plate 2, a fixing plate 4 is fixedly connected to the top of the protective plate 1, a positioning groove 5 adapted to the positioning block 3 is opened on the top of the fixing plate 4, the positioning block 3 is inserted into the inside of the positioning groove 5 and fixed by a pin, and the protective plate 1, the heightening plate 2, the positioning block 3, the fixing plate 4, the pin and the positioning groove 5 are used in coordination, so that the protective plate 1 and the heightening plate 2 can be easily spliced, so that it can be applied to foundation pit support operations of different depths, which is conducive to further improving the flexibility of the device;

[0026] Two groups of diagonal brace assemblies 11 for strengthening the lateral support force of the protective plate 1 are symmetrically arranged on one side wall of the protective plate 1. The diagonal brace assembly 11 includes a first hinge seat 1101, and the first hinge seat 1101 is fixedly installed on one side wall of the protective plate 1. A support rod 1102 is hinged on one side of the first hinge seat 1101, and a second hinge seat 1103 is hinged on the bottom end of the support rod 1102. A first positioning nail 1104 is fixedly connected to the bottom of the second hinge seat 1103. By setting the first hinge seat 1101, the support rod 1102, the second hinge seat 1103 and the first positioning nail 1104, the protective plate 1 is laterally supported, thereby effectively preventing the protective plate 1 from tipping over due to the soil pressure on the inner wall of the foundation pit, which is conducive to further improving the stability and safety of the device.

[0027] A first connecting plate 6 is fixedly installed on one side wall of the protective plate 1, and a groove 7 is opened on one side wall of the first connecting plate 6. In actual use, there are multiple protective plates 1 and height-increasing plates 2. A second connecting plate 8 is fixedly connected to the side wall of the protective plate 1 away from the first connecting plate 6, and a convex block 9 adapted to the groove 7 is fixedly connected to the side wall of the second connecting plate 8. The convex block 9 is inserted into the inside of the groove 7. By setting the first connecting plate 6, the groove 7, the second connecting plate 8 and the convex block 9 for coordinated use, multiple protective plates 1 can be conveniently spliced ​​horizontally;

[0028] Two groups of clamping components 10 for positioning the protrusion 9 are symmetrically arranged inside the groove 7. The clamping component 10 includes a clearance groove 1001, which is opened inside the groove 7 and communicated with the inside of the groove 7. A wedge block 1002 is slidably inserted inside the clearance groove 1001, and one end of the wedge block 1002 is fixedly connected to a return spring 1003, and one end of the return spring 1003 is fixedly connected to an inner wall of one side of the clearance groove 1001. By setting the clamping component 10, the spliced ​​protective plate 1 can be locked and positioned;

[0029] Both ends of the protrusion 9 are provided with slots 12 adapted to the two groups of wedge-shaped blocks 1002, and one end of the two groups of wedge-shaped blocks 1002 is respectively inserted into the inside of the two groups of slots 12;

[0030] Specifically, when the protective plate 1 needs to be horizontally spliced, the protrusion 9 can be directly inserted into the groove 7. At this time, the protrusion 9 will squeeze the wedge block 1002 to move it toward the inside of the give way groove 1001. At this time, the return spring 1003 is in a compressed state. When one end of the wedge block 1002 is aligned with the slot 12, the return spring 1003 is used to firmly insert one end of the wedge block 1002 into the slot 12 by the rebound force of the return spring 1003, so as to achieve the effect of locking and positioning the spliced ​​protective plate 1;

[0031] The top and bottom ends of the first connecting plate 6 are respectively provided with receiving grooves 13, and one end of the two groups of wedge blocks 1002 is respectively fixedly connected with a pull rod 14, and one end of the two groups of pull rods 14 respectively penetrates the first connecting plate 6 and is located inside the receiving groove 13, and the two groups of pull rods 14 are slidably connected to the first connecting plate 6. When the spliced ​​protective plate 1 needs to be disassembled, the pull rod 14 can be manually pulled to drive the wedge block 1002 to move until the wedge block 1002 is separated from the slot 12. At this time, the protrusion 9 can be directly pulled out from the inside of the groove 7 to complete the disassembly operation;

[0032] Two groups of second positioning nails 15 are fixedly connected to the bottom of the protective plate 1. The two groups of second positioning nails 15 are symmetrically arranged. By arranging the second positioning nails 15, the second positioning nails 15 can be inserted into the soil, thereby playing a role in positioning the protective plate 1.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit anti-collapse device, comprising a protective plate (1), characterized in that: The top of the protective plate (1) is provided with a heightening plate (2), the bottom of the heightening plate (2) is fixedly connected to a positioning block (3), the top of the protective plate (1) is fixedly connected to a fixing plate (4), the top of the fixing plate (4) is provided with a positioning groove (5) adapted to the positioning block (3), and the positioning block (3) is inserted into the inside of the positioning groove (5) and fixed by a pin; Two groups of diagonal brace assemblies (11) for strengthening the lateral support force of the protective plate (1) are symmetrically arranged on one side wall of the protective plate (1), and the diagonal brace assembly (11) comprises a first hinge seat (1101), and the first hinge seat (1101) is fixedly installed on one side wall of the protective plate (1), and a support rod (1102) is hinged on one side of the first hinge seat (1101), and the bottom end of the support rod (1102) is hinged on a second hinge seat (1103), and the bottom of the second hinge seat (1103) is fixedly connected to a first positioning pin (1104).

2. A foundation pit anti-collapse device according to claim 1, characterized in that: A first connecting plate (6) is fixedly mounted on one side wall of the protective plate (1), and a groove (7) is provided on one side wall of the first connecting plate (6).

3. A foundation pit anti-collapse device according to claim 2, characterized in that: A second connecting plate (8) is fixedly connected to a side wall of the protective plate (1) away from the first connecting plate (6), and a convex block (9) matching the groove (7) is fixedly connected to a side wall of the second connecting plate (8), and the convex block (9) is inserted into the interior of the groove (7).

4. A foundation pit anti-collapse device according to claim 3, characterized in that: Two groups of clamping components (10) for positioning the protrusion (9) are symmetrically arranged inside the groove (7), and the clamping component (10) includes a clearance groove (1001), the clearance groove (1001) is opened inside the groove (7), and the clearance groove (1001) is connected to the inside of the groove (7), a wedge block (1002) is slidably inserted inside the clearance groove (1001), one end of the wedge block (1002) is fixedly connected to a return spring (1003), and one end of the return spring (1003) is fixedly connected to an inner wall of one side of the clearance groove (1001).

5. A foundation pit anti-collapse device according to claim 4, characterized in that: Slots (12) adapted to the two groups of wedge-shaped blocks (1002) are respectively formed at both ends of the protrusion (9), and one end of the two groups of wedge-shaped blocks (1002) is respectively inserted into the inside of the two groups of slots (12).

6. A foundation pit anti-collapse device according to claim 5, characterized in that: The top and bottom ends of the first connecting plate (6) are respectively provided with receiving grooves (13), one end of the two groups of wedge blocks (1002) are respectively fixedly connected with pull rods (14), one end of the two groups of pull rods (14) respectively penetrates the first connecting plate (6) and is located inside the receiving grooves (13), and the two groups of pull rods (14) are both slidably connected to the first connecting plate (6).

7. The foundation pit anti-collapse device according to claim 1, characterized in that: Two groups of second positioning nails (15) are fixedly connected to the bottom of the protective plate (1), and the two groups of second positioning nails (15) are symmetrically arranged.

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