Foundation pit safety maintenance structure

CN224741591UActive Publication Date: 2026-09-11SHANDONG RAIL TRANSIT SURVEY & DESIGN INST CO LTD
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Patent Information

Application Number
CN202522278928.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-28
Publication Date
2026-09-11
Estimated Expiration
2035-10-28

AI Technical Summary

Technical Problem

[0004]1、多个防护单元为竖直结构,不能根据基坑的角度进行灵活调节,从而使得装置使用范围加以限制;

Benefits of technology

[0020]1.本实用新型中两个防护板与支撑组件为转动调节,可以根据基坑的倾斜度进行灵活调节角度,同时可以根据支撑点来对调节块进行上下调节,起到很好的支撑效果,而且两个防护板之间通过连接架连接,实现同一水平面,可以很好的对基坑进行支撑固定,避免产生坍塌的情况。

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a safety maintenance structure for a foundation pit, including a first protective plate and a second protective plate installed on the right side of the first protective plate. The first protective plate is detachably connected to the second protective plate via a connecting frame. A connecting component is provided at the connection point on the right end face of the first and second protective plates, and the connecting component has upper and lower sets. The two protective plates and the supporting component are rotatably adjustable, allowing for flexible angle adjustment according to the inclination of the foundation pit. Simultaneously, the adjusting block can be adjusted up and down according to the support point, achieving a good supporting effect. Furthermore, the two protective plates are connected by the connecting frame to achieve the same horizontal plane, effectively supporting and fixing the foundation pit to prevent collapse. The two protective plates can provide complete protection for the foundation pit, preventing collapse due to gaps at the upper and lower ends. Moreover, the supporting component can adjust the supporting force by rotating the adjusting cylinder, thereby strengthening the protective effect.
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Description

Technical Field

[0001] This utility model relates to the field of foundation pit maintenance technology, specifically a foundation pit safety maintenance structure. Background Technology

[0002] Currently, during the construction of foundation pits, multiple sets of support and maintenance equipment are needed to support and fix the perimeter of the foundation pit. Steel structure engineering is mainly a structure made of steel, consisting of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. In the construction of foundation pits, steel structures are required for stable fixation. Support and maintenance structures are needed between steel structures to support multiple sets of steel plates, preventing the steel plates from collapsing under pressure and improving the stability of foundation pit maintenance.

[0003] Patent CN222045144U discloses a deep foundation pit retaining structure, relating to the field of deep foundation pit construction technology. It includes a protective body, supporting columns, movable wheels, and positioning rods. The protective body comprises multiple sets of protective units, each including two sets of connecting vertical rods and two sets of connecting horizontal rods. The two connecting horizontal rods are located between the two sets of connecting vertical rods, and both ends of the horizontal rods are hinged to the connecting vertical rods. One connecting vertical rod has a positioning protrusion along its height direction on the side away from the connecting horizontal rod; the other connecting vertical rod has a corresponding positioning groove along its height direction on the side away from the connecting horizontal rod. Two sets of supporting columns are provided, each located on one side of the protective body, with the protective body mounted on the corresponding supporting columns. Movable wheels are installed at the end of each supporting column near the ground, and mounting plates are fixedly connected to the supporting columns. The positioning rods are threaded onto the mounting plates. Although this application improves the ease of use of the foundation pit retaining structure, some drawbacks still exist.

[0004] 1. Multiple protective units are vertical structures, which cannot be flexibly adjusted according to the angle of the pit, thus limiting the scope of use of the device;

[0005] 2. Because there are gaps at both the top and bottom of the protective unit, there are significant drawbacks when providing protection. The top and bottom ends cannot be protected, which may lead to collapse. Furthermore, the unit cannot be adjusted according to the support requirements of the protection. Utility Model Content

[0006] The purpose of this utility model is to provide a foundation pit safety maintenance structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a foundation pit safety maintenance structure, comprising a first protective plate and a second protective plate installed on the right side of the first protective plate.

[0008] The first protective plate is detachably connected to the second protective plate via a connecting frame. A connecting component is provided at the connection between the right end face of the first and second protective plates. The connecting component has two sets, upper and lower. Fixing blocks are welded to the right side of both the first and second protective plates. There are two fixing blocks, upper and lower. An adjusting component is installed between the two fixing blocks, and an adjusting block is inserted through the adjusting component.

[0009] The front end of the adjusting block is rotatably connected to the support assembly, the bottom end of the support assembly is rotatably connected to the connecting seat, and a fixing seat is welded to the bottom end of the connecting seat. Positioning pins are inserted at the four corners of the fixing seat.

[0010] In a preferred embodiment of this utility model, the connecting assembly includes a mounting bracket fixed to a first protective plate, an mounting groove is provided on the inner side of the mounting bracket, a connecting block embedded in the mounting groove is fixed to a second protective plate, a bolt passing through the connecting block passes through the mounting bracket, and a nut is connected to the tail end of the bolt.

[0011] In a preferred embodiment of this invention, the right end face of the mounting groove is an open structure, the bottom is a sealed structure, and the upper end face of the mounting bracket is flush with the upper end face of the connecting block.

[0012] In a preferred embodiment of this invention, the adjusting component includes a connecting strip fixed inside the fixing block, a screw rod provided in front of the connecting strip, and the top end of the screw rod being embedded in the fixing block through a bearing and connected to the control rod.

[0013] In a preferred embodiment of this invention, two locking nuts are installed on the screw, and the two locking nuts are respectively in close contact with the upper and lower end faces of the adjusting block.

[0014] In a preferred embodiment of this invention, the adjusting block is slidably connected to the connecting strip, and the adjusting block is threadedly connected to the screw.

[0015] In a preferred embodiment of this utility model, the support assembly includes a stud A rotatably connected to the adjusting block, the thread of the stud A being threaded inside the upper end of the adjusting cylinder, and a stud B being threaded at the lower end of the adjusting cylinder, with the threads on stud A and stud B having opposite directions of rotation.

[0016] In a preferred embodiment of this utility model, a nut A is installed on stud A, a nut B is installed on stud B, and nuts A and B are respectively located at the upper and lower ends of the adjusting cylinder. Control strips are welded to both the front and rear sides of the adjusting cylinder.

[0017] As a preferred embodiment of the present invention, both the first protective plate and the second protective plate are rectangular in shape with the same cross-sectional area.

[0018] In a preferred embodiment of this utility model, the connecting frame is slidably embedded in a slot opened on the left side of the second protective plate, and both the connecting frame and the slot are T-shaped and connected together.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. In this utility model, the two protective plates and the support assembly are rotatable and adjustable, which can flexibly adjust the angle according to the inclination of the foundation pit. At the same time, the adjustment block can be adjusted up and down according to the support point, which can achieve a good support effect. Moreover, the two protective plates are connected by a connecting frame to achieve the same horizontal plane, which can effectively support and fix the foundation pit and prevent collapse.

[0021] 2. In this utility model, the two protective plates can provide complete protection for the foundation pit, preventing collapse caused by gaps at the top and bottom ends. Moreover, the support component can adjust the support force by rotating the adjusting cylinder, thereby strengthening the protection effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a front view of a partial connection structure between the protective plate and the adjustment component of this utility model;

[0024] Figure 3 This is an exploded view of the support component of this utility model;

[0025] Figure 4 This is a top view showing a partial exploded structure of the first and second protective plates of this utility model;

[0026] Figure 5 The right view shows the exploded structure of the connecting component of this utility model.

[0027] In the diagram: 1. First protective plate; 2. Second protective plate; 3. Connecting frame; 4. Connecting assembly; 41. Mounting frame; 42. Mounting groove; 43. Connecting block; 44. Bolt; 5. Fixing block; 6. Adjusting assembly; 61. Connecting strip; 62. Control rod; 63. Screw; 64. Locking nut; 7. Adjusting block; 8. Support assembly; 81. Stud A; 82. Nut A; 83. Adjusting cylinder; 84. Control strip; 85. Stud B; 86. Nut B; 9. Connecting seat; 10. Fixing seat; 11. Positioning pin; 12. Groove. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 a connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all of them fall within the scope of protection of this utility model.

[0031] Example 1

[0032] like Figure 1 , 2 As shown in Figures 4 and 5, this utility model provides a technical solution: it includes a first protective plate 1 and a second protective plate 2 installed on the right side of the first protective plate 1. The first protective plate 1 is detachably connected to the second protective plate 2 via a connecting frame 3, which increases the connectivity of the two protective plates. Figure 1 and 4 As shown, a connecting component 4 is provided at the connection point on the right end face of the first protective plate 1 and the second protective plate 2. The connecting component 4 has two sets, upper and lower, which can increase the firmness of the connection between the two protective plates. Figure 1 and 5 As shown, fixing blocks 5 are welded to the right sides of both the first protective plate 1 and the second protective plate 2. Each fixing block 5 has two parts, one upper and one lower. An adjusting component 6 is installed between the two fixing blocks, and an adjusting block 7 is threaded through the adjusting component 6. The adjusting component can be adjusted up and down according to the support point, providing excellent support. Figure 1 and 2 As shown.

[0033] The connecting assembly 4 includes a mounting bracket 41 fixed to the first protective plate 1. A mounting groove 42 is provided on the inner side of the mounting bracket 41. A connecting block 43, embedded in the mounting groove 42, is fixed to the second protective plate 2. A bolt 44, passing through the connecting block 43, extends through the mounting bracket 41, and a nut is connected to the tail end of the bolt 44. The connecting assembly is designed to increase the strength of the connection between the two protective plates. Figure 1 and 5 As shown.

[0034] The right end face of the mounting slot 42 is open, while the bottom is sealed. Furthermore, the upper end face of the mounting bracket 41 is flush with the upper end face of the connecting block 43, making the connection between the two protective plates more secure. Figure 4 As shown.

[0035] Adjustment component 6 includes a connecting strip 61 fixed inside the fixing block 5. A screw 63 is provided in front of the connecting strip 61. The top end of the screw 63 is embedded in the fixing block 5 through a bearing and connected to a control rod 62. The screw is rotated and adjusted by the control rod. Figure 1 and 2 As shown.

[0036] Two locking nuts 64 are installed on the screw 63, and the two locking nuts 64 are respectively tightly attached to the upper and lower end faces of the adjusting block 7. The two locking nuts can fix the screw, prevent rotation, and increase the firmness. Figure 1 and 2 As shown.

[0037] The adjusting block 7 is slidably connected to the connecting strip 61, and the adjusting block 7 is threadedly connected to the screw 63. The up-and-down adjustment of the adjusting block is achieved by rotating the screw, thereby changing the support point as needed. Figure 1 and 2 As shown.

[0038] Both the first protective plate 1 and the second protective plate 2 are rectangular with the same cross-sectional area, achieving flush inner end faces. Figure 1 As shown;

[0039] The connecting bracket 3 is slidably embedded in the slot 12 opened on the left side of the second protective plate 2, and both the connecting bracket 3 and the slot 12 are T-shaped and fit together, which increases the firmness of the connection between the two protective plates. Figure 1 and 4 As shown.

[0040] In this embodiment, quick assembly and disassembly can be achieved. The two protective plates and the support components are adjustable by rotation, and the angle can be flexibly adjusted according to the inclination of the pit. At the same time, the adjustment block can be adjusted up and down according to the support point, which provides a good support effect.

[0041] Example 2

[0042] like Figure 1 and 3 As shown, this utility model provides a technical solution: it includes an adjusting block 7, the front end of which is rotatably connected to a support assembly 8, the bottom end of which is rotatably connected to a connecting seat 9, and a fixing seat 10 is welded to the bottom end of the connecting seat 9. Positioning nails 11 are inserted at each of the four corners of the fixing seat 10, which can increase the protective effect of the protective plate on the foundation pit. Figure 1 As shown.

[0043] The support assembly 8 includes a stud A81 rotatably connected to the adjusting block 7. The thread of stud A81 is embedded in the upper end of the adjusting cylinder 83, and the lower end of the adjusting cylinder 83 is threaded with a stud B85. The threads on stud A81 and stud B85 rotate in opposite directions. By adjusting the adjusting cylinder, the distance between the two studs can be adjusted, thereby adjusting the support force. Figure 1 and 3 As shown.

[0044] Nut A82 is installed on stud A81, and nut B86 is installed on stud B85. Nuts A82 and B86 are located at the upper and lower ends of the adjusting cylinder 83, respectively. Control strips 84 are welded to both the front and rear sides of the adjusting cylinder 83. The two nuts can be used to fix the adjusting cylinder and prevent rotation during support. Figure 3 As shown.

[0045] In this embodiment, the two protective plates and the support components are adjustable by rotation, and the angle can be flexibly adjusted according to the inclination of the pit.

[0046] In use, the first protective plate 1 is slidably embedded into the second protective plate 2 through the connecting bracket 3, initially connecting the first protective plate 1 and the second protective plate 2; then the connecting block 43 on the second protective plate 2 is embedded into the mounting groove 42 of the mounting bracket 41 on the first protective plate 1, the bolt 44 is inserted and the nut is tightened, and the two protective plates are fastened through the upper and lower sets of connecting components 4.

[0047] Rotate the stud A81 to the front end of the adjusting block 7; rotate the control rod 62 to drive the screw 63 to rotate, so that the adjusting block 7, which is threaded to the screw 63, slides along the connecting bar 61 to a suitable support position, and place the fixing seat 10 on the ground at a preset position outside the pit. Drive the positioning nails 11 at the four corners of the fixing seat 10 into the ground to complete the bottom fixing of the support component 8.

[0048] Adjust the extension length of studs A81 and B85 within the adjusting cylinder 83 by threaded connection. Once the support force is appropriate, tighten nut A82 to lock the support length against the upper end of the adjusting cylinder 83 and nut B86.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A foundation pit safety maintenance structure, comprising a first protective plate (1) and a second protective plate (2) installed on the right side of the first protective plate (1), characterized in that: The first protective plate (1) is detachably connected to the second protective plate (2) through the connecting frame (3). A connecting component (4) is provided at the connection between the right end face of the first protective plate (1) and the second protective plate (2). The connecting component (4) is provided with two sets, upper and lower. Fixing blocks (5) are welded to the right side of the first protective plate (1) and the second protective plate (2). The fixing blocks (5) are provided with two sets, upper and lower. An adjusting component (6) is installed between the two fixing blocks. An adjusting block (7) is passed through the adjusting component (6). The front end of the adjusting block (7) is rotatably connected to the support assembly (8), the bottom end of the support assembly (8) is rotatably connected to the connecting seat (9), and a fixing seat (10) is welded to the bottom end of the connecting seat (9). Positioning nails (11) are inserted at the four corners of the fixing seat (10).

2. The foundation pit safety maintenance structure according to claim 1, characterized in that: The connecting assembly (4) includes a mounting bracket (41) fixed on the first protective plate (1), and a mounting groove (42) is provided on the inner side of the mounting bracket (41). A connecting block (43) embedded in the mounting groove (42) is fixed on the second protective plate (2). A bolt (44) passing through the connecting block (43) passes through the mounting bracket (41), and a nut is connected to the tail end of the bolt (44).

3. The foundation pit safety maintenance structure according to claim 2, characterized in that: The right end face of the mounting groove (42) is an open structure, the bottom is a sealed structure, and the upper end face of the mounting bracket (41) is flush with the upper end face of the connecting block (43).

4. The foundation pit safety maintenance structure according to claim 1, characterized in that: The adjustment component (6) includes a connecting strip (61) fixed inside the fixing block (5), and a screw (63) is provided in front of the connecting strip (61). The top end of the screw (63) is embedded in the fixing block (5) through a bearing and connected to the control rod (62).

5. The foundation pit safety maintenance structure according to claim 4, characterized in that: Two locking nuts (64) are installed on the screw (63), and the two locking nuts (64) are respectively attached to the upper and lower end faces of the adjusting block (7).

6. The foundation pit safety maintenance structure according to claim 4, characterized in that: The adjusting block (7) is slidably connected to the connecting bar (61), and the adjusting block (7) is threadedly connected to the screw (63).

7. The foundation pit safety maintenance structure according to claim 1, characterized in that: The support assembly (8) includes a stud A (81) rotatably connected to the adjusting block (7), the thread of the stud A (81) being threaded inside the upper end of the adjusting cylinder (83), and the lower end of the adjusting cylinder (83) being threaded with a stud B (85), and the threads on the stud A (81) and the stud B (85) having opposite directions of rotation.

8. The foundation pit safety maintenance structure according to claim 7, characterized in that: Nut A (82) is installed on stud A (81), and nut B (86) is installed on stud B (85). Nut A (82) and nut B (86) are located at the upper and lower ends of the adjusting cylinder (83), respectively. Control strips (84) are welded on both the front and rear sides of the adjusting cylinder (83).

9. The foundation pit safety maintenance structure according to claim 1, characterized in that: The first protective plate (1) and the second protective plate (2) are both rectangular in shape with the same cross-sectional area.

10. A foundation pit safety maintenance structure according to claim 1, characterized in that: The connecting frame (3) is slidably embedded in the slot (12) opened on the left side of the second protective plate (2), and the connecting frame (3) and the slot (12) are both T-shaped and connected together.

Citation Information

Patent Citations

  • Deep foundation pit support structure

    CN222045144U