Earth excavation foundation pit interior collapse prevention device

Abstract

The utility model discloses an earth excavation foundation pit internal collapse prevention device which comprises a foundation pit wall support, foundation pit walls are arranged on the two sides of the foundation pit wall support, a fastening mechanism is arranged below the foundation pit wall support, and the fastening mechanism comprises an installation base, an upper adjusting arm, a lower adjusting arm, a limiting hole, a limiting rod, a positioning block and a foundation. The utility model relates to the technical field of foundation pit protection, enables a foundation pit wall support not to slide and topple easily, is suitable for inclined land with uneven ground, and solves the problems that an existing collapse prevention device is not high in stability, the foundation pit wall support is prone to topple, a foundation pit wall collapses, and a device for reinforcing and stabilizing the foundation pit wall support in a targeted mode does not exist. And therefore, the life safety of workers is easily threatened.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit protection, in particular to an anti-collapse device inside an earthwork excavation foundation pit. 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. Before excavation, the excavation plan should be decided based on geological and hydrological data and the conditions of nearby buildings on site. If the excavation is deeper or there are buildings nearby, the foundation pit wall support method can be used to prevent collapse of the interior of the foundation pit.

[0003] Existing devices generally use steel pipes, steel plates and other materials for welding at the construction site to form an integrated fixed-size foundation pit wall support to prevent collapse.

[0004] However, the existing anti-collapse devices are not very stable, and the foundation pit wall supports are prone to tipping over, causing the foundation pit wall to collapse. There is no targeted device to strengthen the stabilization of the foundation pit wall supports, which can easily pose a threat to the life safety of workers. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an anti-collapse device for the interior of an earth excavation pit, which solves the problem that the existing anti-collapse device is not very stable, the pit wall support is easy to tip over, causing the pit wall to collapse, and there is no device to specifically strengthen the stabilization of the pit wall support, which easily poses a threat to the life safety of workers.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: an anti-collapse device for an earthwork excavation foundation pit, comprising a foundation pit wall bracket, foundation pit walls are arranged on both sides of the foundation pit wall bracket, a fastening mechanism is arranged below the foundation pit wall bracket, the fastening mechanism comprises a mounting seat, an upper adjusting arm, a lower adjusting arm, a limiting hole, a limiting rod, a positioning block and a ground foot, the top of the mounting seat is fixedly connected to the bottom of the foundation pit wall bracket, both sides of the mounting seat are fixedly connected with positioning blocks, the positioning block is rotatably connected to the upper adjusting arm through a pin shaft, the bottom of the upper adjusting arm is sleeved with the lower adjusting arm, the surface of the lower adjusting arm is provided with a limiting hole, the inner wall of the limiting hole is plugged with the limiting rod, and the limiting rod is plugged into the inner wall of the upper adjusting arm, and the bottom of the lower adjusting arm is rotatably connected to the ground foot through a pin shaft.

[0007] Preferably, the upper adjustment arm is fixedly connected to one end of the connecting rod by a bolt, the end of the connecting rod is rotatably connected to a limit block by a pin, and the limit block is fixedly connected to one side of the outer wall of the mounting seat.

[0008] Preferably, the bottom of the mounting seat is fixedly connected to a base, the bottom of the base is fixedly connected to a pedestal, both sides of the pedestal are fixedly connected to telescopic rods, and the other end of the telescopic rods is fixedly connected to the inner side of the foot.

[0009] Preferably, the inner wall of the base is plugged with ground nails, and the bottom of the ground foot is provided with an anti-slip layer.

[0010] Preferably, a side plate is fixedly connected to the foundation pit wall on one side close to the foundation pit wall bracket, a fixing frame is fixedly connected to the inner side of the side plate, a limiting ring is fixedly connected to the top of the fixing frame, a hook is inserted into the inside of the limiting ring, the hook is rotatably connected to a hanging block via a pin shaft, the hanging block is fixedly connected to the inner side of the foundation pit wall, the fixing frame is fixedly connected to a supporting end via a screw, a supporting rod is fixedly connected to the bottom of the supporting end, and the other end of the support rod is fixedly connected to the inner side of the foundation pit wall.

[0011] Preferably, a plurality of support blocks are arranged between the support end and the foundation pit wall bracket, one of the support blocks is fixedly connected to one side of the outer wall of the foundation pit wall bracket, and the adjacent sides of two support blocks are fixedly connected to connecting blocks, and the inner wall of the connecting block is threadedly connected to a threaded rod.

[0012] Beneficial Effects

[0013] The utility model provides an anti-collapse device for the interior of an earthwork excavation pit. It has the following beneficial effects: the anti-collapse device for the interior of an earthwork excavation pit achieves the adjustment of angles, disperses loads, increases the friction between the foot and the ground, and makes it difficult for the pit wall bracket to slide and fall over, through the cooperation between the mounting seat, the upper adjustment arm, the lower adjustment arm, the limit hole, the limit rod, the positioning block and the foot. The device is suitable for inclined land with uneven potholes, and solves the problem that the existing anti-collapse device is not very stable, the pit wall bracket is easy to fall over, resulting in the collapse of the pit wall, and there is no device for strengthening the stability of the pit wall bracket, which is easy to threaten the life safety of the workers.

[0014] Through the coordination among the supporting end, the supporting block, the connecting block and the threaded rod, the distance between the foundation pit walls is extended. The utility model is applicable to a wider range of foundation pits, has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the appearance of the utility model;

[0017] Figure 3 for Figure 1 A schematic diagram of the structure of the middle mounting seat, the upper adjustment arm and the lower adjustment arm;

[0018] Figure 4 for Figure 1 Schematic diagram of the structure of the middle hook, support rod and fixing frame;

[0019] Figure 5 for Figure 1 Schematic diagram of the structure of the middle screw, the limit ring support end and;

[0020] Figure 6 for Figure 1 Schematic diagram of the structure of the middle and upper adjustment arm, limit hole and limit rod.

[0021] In the figure: 1. foundation pit wall bracket, 2. foundation pit wall, 3. mounting seat, 4. upper adjusting arm, 5. lower adjusting arm, 6. limiting hole, 7. limiting rod, 8. positioning block, 9. connecting rod, 10. limiting block, 11. ground anchor, 12. base, 13. telescopic rod, 14. anti-slip layer, 15. ground nail, 16. base, 17. connecting block, 18. threaded rod, 19, hanging block, 20. fixing frame, 21. screw, 22. support rod, 23. hook, 24. limiting ring, 25. side plate, 26. support block, 27. supporting end. DETAILED DESCRIPTION

[0022] 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.

[0023] The existing anti-collapse device is not very stable, and the foundation pit wall support is easy to topple over, causing the foundation pit wall to collapse. There is no targeted device to strengthen the stability of the foundation pit wall support, which can easily pose a threat to the life safety of the workers.

[0024] In view of this, the utility model provides an anti-collapse device for the interior of an earth excavation foundation pit. Through the cooperation among a mounting seat, an upper adjusting arm, a lower adjusting arm, a limit hole, a limit rod, a positioning block and a ground foot, the upper adjusting arm and the lower adjusting arm are adjusted so that the bottom of the ground foot can stably contact the ground, thereby increasing the overall stability of the device and preventing it from tipping over.

[0025] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0026] Embodiment 1: Figure 1-4As can be seen from 6, an anti-collapse device for the interior of an earthwork excavation foundation pit comprises a foundation pit wall support 1, and foundation pit walls 2 are arranged on both sides of the foundation pit wall support 1. The purpose of arranging the foundation pit wall support 1 and the foundation pit wall 2 is to support the interior of the foundation pit to prevent its internal collapse. A fastening mechanism is arranged below the foundation pit wall support 1, and the fastening mechanism comprises a mounting seat 3, an upper adjustment arm 4, a lower adjustment arm 5, a limiting hole 6, a limiting rod 7, a positioning block 8 and a foot 11. The top of the mounting seat 3 is fixedly connected to the bottom of the foundation pit wall support 1, and the two sides of the mounting seat 3 are fixedly connected with positioning blocks 8. The positioning block 8 is rotatably connected to the upper adjustment arm 4 through a pin shaft, and the bottom of the upper adjustment arm 4 is sleeved with the lower adjustment arm 5. A limit hole 6 is provided on the surface of the lower adjustment arm 5. The inner wall of the limit hole 6 is plugged with a limit rod 7, and the limit rod 7 is plugged into the inner wall of the upper adjustment arm 4. The purpose of such design is that the upper adjustment arm 4 can be rotated by a pin shaft, and the upper adjustment arm 4 is sleeved inside the lower adjustment arm 5. The limit rod 7 is inserted into the limit hole of the lower adjustment arm 5 and the inner wall of the upper adjustment arm 4 to fix the upper adjustment arm 4 and the lower adjustment arm 5, so as to achieve the effect of firmly supporting the foundation pit wall bracket 1 and being adjustable at the same time, having a wide range of applications and facilitating construction. The bottom of the lower adjustment arm 5 is rotatably connected with a foot 11 through a pin shaft, and the foot 11 can increase the area with the ground, increase the friction force, and disperse the load.

[0027] In the specific implementation process, it is worth pointing out that by rotating the pin of the positioning block 8 to rotate the angle, and then adjusting the length of the upper adjustment arm 4 and the lower adjustment arm 5 to achieve a suitable length, the mounting seat 3 can be supported, so that the foundation pit wall bracket 1 is not easy to slide and tip over, and is suitable for inclined land with uneven potholes;

[0028] Furthermore, the upper adjustment arm 4 is fixedly connected to one end of the connecting rod 9 by a bolt, and the end of the connecting rod 9 is rotatably connected to the limit block 10 through a pin shaft, and the limit block 10 is fixedly connected to one side of the outer wall of the mounting seat 3;

[0029] In the specific implementation process, it is worth pointing out that the connecting rod 9 is rotated to a suitable angle by rotating the pin of the limit block 10, and the connecting rod 9 is fixedly connected to the inner wall of the upper adjustment arm 4 by bolts to achieve triangular fixation, support the upper adjustment arm 4 and the lower adjustment arm 5, so that it is not easy to shake, and further stabilize the foundation pit wall bracket 1;

[0030] Furthermore, the bottom of the mounting base 3 is fixedly connected to the base 12, the bottom of the base 12 is fixedly connected to the base 16, both sides of the base 16 are fixedly connected to the telescopic rod 13, and the other end of the telescopic rod 13 is fixedly connected to the inner side of the foot 11;

[0031] In the specific implementation process, it is worth pointing out that the design purpose of the base 12 and the base 16 is to better support the foundation pit wall bracket 1, and the telescopic rod 13 has a stabilizing effect, which can be telescoped to stabilize the foot 11 and prevent it from sliding;

[0032] Furthermore, the inner wall of the base 16 is plugged with a ground nail 15, and the bottom of the foot 11 is provided with an anti-slip layer 14;

[0033] In the specific implementation process, it is worth noting that the ground nail 15 is inserted into the ground to increase the friction between the base 16 and the ground, and the anti-slip layer 14 can also increase the friction between the foot 11 and the ground, so that the stability of the entire device is greatly improved;

[0034] Furthermore, a side plate 25 is fixedly connected to one side of the foundation pit wall 2 close to the foundation pit wall bracket 1, a fixing frame 20 is fixedly connected to the inner side of the side plate 25, a limiting ring 24 is fixedly connected to the top of the fixing frame 20, a hook 23 is inserted inside the limiting ring 24, the hook 23 is rotatably connected to the hanging block 19 through a pin shaft, the hanging block 19 is fixedly connected to the inner side of the foundation pit wall 2, the fixing frame 20 is fixedly connected to a supporting end 27 through a screw 21, a supporting rod 22 is fixedly connected to the bottom of the supporting end 27, and the other end of the supporting rod 22 is fixedly connected to the inner side of the foundation pit wall 2. The purpose of such a design is to fix the supporting end 27 and the fixing frame 20 through the screw 21, and then insert the limiting ring 24 at the top of the fixing frame 20 into the hook 23, so that the fixing frame 20 and the supporting end 27 are both fixed on the foundation pit wall 2, and the supporting rod 22 also plays a role in supporting the supporting end 27.

[0035] In the specific implementation process, it is worth pointing out that the support end 27 can be quickly installed and removed from the fixing frame 20 by screwing in and out the screw rod 21, and the fixing frame 20 can be quickly installed and removed by the cooperation of the hook 23 and the limit ring 24, so that the support end 27 can be quickly installed and removed through the inner side of the foundation pit wall 1, which saves time and effort and improves work efficiency.

[0036] Specifically, when using the anti-collapse device inside the earth excavation foundation pit, the upper adjusting arm 4 and the lower adjusting arm 5 are rotated to a suitable angle by rotating the pin shaft, and then the lower adjusting arm 5 is pulled to a suitable position, and the upper adjusting arm 4 and the lower adjusting arm 5 are fixed together by inserting the limit rod 7 into the limit hole 6 of the lower adjusting arm 5 and the inner wall of the upper adjusting arm 4. At the same time, after the foot 11 is also adjusted to a suitable position, the connecting rod 9 is rotated to a suitable angle through the pin shaft of the limit block 10, and then the other end of the connecting rod 9 is fixedly connected to the inner wall of the upper adjusting arm 4 by bolts, so as to further stabilize the upper adjusting arm 4. At the same time, the telescopic rods 13 on both sides of the base 16 are also adjusted to a suitable length to firmly support the foot 11.

[0037] Embodiment 2: By Figure 1 , 2 As shown in Figures 5 and 5, a plurality of support blocks 26 are arranged between the support end 27 and the foundation pit wall bracket 1, one of the support blocks 26 is fixedly connected to one side of the outer wall of the foundation pit wall bracket 1, and the adjacent sides of the two support blocks 26 are fixedly connected to the connection block 17, and the inner wall of the connection block 17 is threadedly connected to the threaded rod 18;

[0038] In the specific implementation process, it is worth pointing out that the two support blocks 26 are connected together by screwing the threaded rod 18 into the inner wall of the connecting block 17, and the connecting block 17 and the connecting end 27 are also connected together in the same way, so that the distance supported by the foundation pit wall 2 can be extended;

[0039] Specifically, on the basis of the above-mentioned embodiment 1, the staff aligns the connecting blocks 17 on the two support blocks 26, and then screws in the threaded rod 18 to fix the two support blocks 26 in connection. Similarly, the support end heads 27 on the foundation pit wall 2 are first connected in the same manner, and then the support blocks 26 of the foundation pit wall bracket 1 are connected in the same manner, and finally the foundation pit wall bracket 1 and the foundation pit wall 2 are fixedly connected.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0041] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0042] 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 device for preventing the internal collapse of an earthwork excavation pit, comprising a pit wall support (1), characterized in that: Foundation pit walls (2) are arranged on both sides of the foundation pit wall bracket (1), and a fastening mechanism is arranged below the foundation pit wall bracket (1); The fastening mechanism comprises a mounting seat (3), an upper adjustment arm (4), a lower adjustment arm (5), a limiting hole (6), a limiting rod (7), a positioning block (8) and a foot (11); The top of the mounting seat (3) is fixedly connected to the bottom of the foundation pit wall bracket (1), and positioning blocks (8) are fixedly connected to both sides of the mounting seat (3). The positioning blocks (8) are rotatably connected to the upper adjustment arm (4) via a pin shaft, and the bottom of the upper adjustment arm (4) is sleeved with the lower adjustment arm (5). A limiting hole (6) is provided on the surface of the lower adjustment arm (5), and a limiting rod (7) is inserted into the inner wall of the limiting hole (6), and the limiting rod (7) is inserted into the inner wall of the upper adjustment arm (4). The bottom of the lower adjustment arm (5) is rotatably connected to a foot (11) via a pin shaft.

2. The device for preventing internal collapse of an earthwork excavation pit according to claim 1, characterized in that: The upper adjustment arm (4) is fixedly connected to one end of the connecting rod (9) by means of a bolt, and the end of the connecting rod (9) is rotatably connected to a limit block (10) by means of a pin, and the limit block (10) is fixedly connected to one side of the outer wall of the mounting seat (3).

3. The device for preventing internal collapse of an earthwork excavation pit according to claim 1, characterized in that: The bottom of the mounting seat (3) is fixedly connected to a base (12), the bottom of the base (12) is fixedly connected to a pedestal (16), both sides of the pedestal (16) are fixedly connected to telescopic rods (13), and the other end of the telescopic rod (13) is fixedly connected to the inner side of the foot (11).

4. The device for preventing internal collapse of an earthwork excavation pit according to claim 3, characterized in that: The inner wall of the base (16) is plugged with a ground nail (15), and the bottom of the foot (11) is provided with an anti-slip layer (14).

5. The device for preventing internal collapse of an earthwork excavation pit according to claim 1, characterized in that: A side plate (25) is fixedly connected to a side of the foundation pit wall (2) close to the foundation pit wall bracket (1); a fixing frame (20) is fixedly connected to the inner side of the side plate (25); a limiting ring (24) is fixedly connected to the top of the fixing frame (20); a lifting hook (23) is inserted into the interior of the limiting ring (24); the lifting hook (23) is rotatably connected to a lifting block (19) via a pin shaft; the lifting block (19) is fixedly connected to the inner side of the foundation pit wall (2); the fixing frame (20) is fixedly connected to a supporting end head (27) via a screw rod (21); a supporting rod (22) is fixedly connected to the bottom of the supporting end head (27); and the other end of the supporting rod (22) is fixedly connected to the inner side of the foundation pit wall (2).

6. The device for preventing internal collapse of an earthwork excavation pit according to claim 5, characterized in that: A plurality of support blocks (26) are arranged between the support end (27) and the foundation pit wall bracket (1), one of the support blocks (26) is fixedly connected to one side of the outer wall of the foundation pit wall bracket (1), and the adjacent sides of the two support blocks (26) are fixedly connected to a connection block (17), and the inner wall of the connection block (17) is threadedly connected to a threaded rod (18).

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