A rapid installation device for foundation pit maintenance support structure

Abstract

This utility model relates to the technical field of foundation pit maintenance, and in particular to a quick installation device for a foundation pit maintenance support structure. It includes a first extension rod, a second extension rod slidably connected to the first extension rod, the first extension rod being disposed on one side of a support plate, a limit guide rail being provided on one side of the support plate, a plurality of first limit holes being opened on one side of the limit guide rail, a moving part being slidably connected to the outer side of the limit guide rail, a fixed plate being provided on one side of the bottom of the support plate, and a connector being provided on one side of the fixed plate. The connector includes a pressing part, a long plate being fixedly connected to the bottom of the pressing part, and a plurality of pins being fixedly disposed at the bottom of the long plate. The first and second extension rods enhance the lateral adaptability of the support plate, and in conjunction with the limit guide rail and the moving part, ensure that the support plate always receives good lateral support. Furthermore, the specially designed pins prevent individual pins from contracting when subjected to hard objects, without affecting the normal use of other pins.

Description

Technical Field

[0001] This utility model relates to the technical field of foundation pit maintenance, and in particular to a rapid installation device for a foundation pit maintenance support structure. Background Technology

[0002] As a critical excavation operation in construction engineering for building underground structures, the stability of the support system in an excavation pit directly affects construction safety. Traditional support systems typically employ a combination of a top-loaded support plate and bottom-mounted support rods. This configuration has significant mechanical defects: structural stress imbalance, with the main support area of ​​the support plate concentrated at the top of the excavation face, and the support rods located in the lower part of the support structure, creating a non-cooperative stress pattern of "top pressure and bottom tension," resulting in abnormal stress distribution. The concentrated load at the top causes eccentric stress in the support plate, while the bottom support rods form rigid fulcrum constraints, leading to abrupt stress changes in the vertical load transmission path and reduced support effectiveness. The plate-rod system stiffness mismatch is also present, and the contact stress at the support interface exhibits a non-linear distribution, making localized areas prone to stress over-limit leading to plastic deformation. These safety hazards highlight the overall stability coefficient of the support system, limit the coordination ability of pit wall deformation, and may induce progressive structural failure.

[0003] This traditional support method has failed to form an effective three-dimensional collaborative support system, resulting in low efficiency of the coupled operation between the support structure and soil deformation. It is urgent to optimize and improve the structure through prestressed distributed support technology or adaptive support system.

[0004] Furthermore, there are hard objects in some parts of the ground, which cannot be accommodated by commonly used fixing nails, greatly affecting the support effect and failing to provide good support. In addition, the existing support structure cannot adapt to the size of the foundation pit, and the adaptation effect is too poor. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the rapid installation device of the foundation pit maintenance support structure, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a quick installation device for the foundation pit maintenance support structure, which aims to provide a good support effect.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including,

[0009] The installation mechanism includes a first extension rod, a second extension rod slidably connected to the first extension rod, the first extension rod being disposed on one side of a support plate, a limit guide rail being disposed on one side of the support plate, a plurality of first limit holes being opened on one side of the limit guide rail, and a moving part being slidably connected to the outer side of the limit guide rail.

[0010] As a preferred embodiment of the rapid installation device for the foundation pit maintenance support structure of this utility model, a second limiting hole is provided above the moving part.

[0011] As a preferred embodiment of the quick installation device for the foundation pit maintenance support structure of this utility model, a fixing plate is provided on one side of the bottom of the support plate, a pressing member is provided on one side of the fixing plate, a long plate is fixedly connected to the bottom of the pressing member, and a number of plug-in nails are fixedly provided on the bottom of the long plate.

[0012] As a preferred embodiment of the rapid installation device for the foundation pit maintenance support structure of this utility model, wherein: a connecting rod is hinged to one side of the moving part, and a stabilizing plate is hinged to one end of the connecting rod.

[0013] As a preferred embodiment of the quick installation device for the foundation pit maintenance support structure of this utility model, a square block is fixedly provided on the top of the stabilizing plate, a limit rod is rotatably connected inside the square block, a rotating bolt is provided at one end of the limit rod, and a triangular block is provided on the top of the stabilizing plate.

[0014] As a preferred embodiment of the quick installation device for the foundation pit maintenance support structure of this utility model, the plug-in pin includes a first moving block and a second moving block, the first moving block and the second moving block are slidably connected, and the first moving block has a sliding groove inside.

[0015] As a preferred embodiment of the quick installation device for the foundation pit maintenance support structure of this utility model, the first moving block is provided with a first limiting block inside, the second moving block is provided with a first limiting block on its top, and the second moving block is provided with a reset spring on its top.

[0016] The beneficial effects of this utility model are as follows: the first and second extension rods enhance the lateral adaptability of the support plate, and in conjunction with the limiting guide rail and the moving parts, the support plate always receives good lateral support. Furthermore, the special plug-in pins ensure that a single plug-in pin will contract when subjected to a hard object, without affecting the normal use of other plug-in pins. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 A schematic diagram of the overall structure of this utility model.

[0019] Figure 2 A schematic diagram of the connector structure provided by this utility model.

[0020] Figure 3 A schematic diagram of the structure of the stabilizing plate provided by this utility model.

[0021] Figure 4 This is a schematic diagram of the plug structure provided by this utility model. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Example 1

[0027] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a rapid installation device for a foundation pit maintenance support structure.

[0028] Specifically, the installation mechanism 100 includes a first extension rod 101, a second extension rod 102 slidably connected to the first extension rod 101, the first extension rod 101 being disposed on one side of a support plate, a limit guide rail 103 being disposed on one side of the support plate, a plurality of first limit holes 103a being opened on one side of the limit guide rail 103, a moving part 105 being slidably connected to the outer side of the limit guide rail 103, a second limit hole 105a being opened above the moving part 105, a fixing plate 104 being disposed on one side of the bottom of the support plate, a pressing part 104a being disposed on one side of the fixing plate 104, a long plate 104a-2 being fixedly connected to the bottom of the pressing part 104a, and a plurality of insert pins 104a-3 being fixedly disposed at the bottom of the long plate 104a-2.

[0029] By moving the support plate, the first extension rod 101 is slidably connected inside the second extension rod 102, thus maintaining a stable connection between the two sets of support plates, thereby adapting to foundation pits of different sizes. The limiting guide rail 103 is provided with several first limiting holes 103a, and the moving part 105 is provided with a second limiting hole 105a on its upper part, so that the moving part 105 can move to a suitable position on the limiting guide rail 103 and be constrained by bolts or pins. Thus, even if the support plates are extended or shortened, the moving part 105 can always be adjusted to a suitable position, preparing for subsequent side support.

[0030] Since a fixing plate 104 is provided on one side of the support plate, pressing the pressing member 104a causes the insertion pin 104a-3 to move downward through the action of the long plate 104a-2.

[0031] A connecting rod 106 is hinged to one side of the movable part 105. A stabilizing plate 107e is hinged to one end of the connecting rod 106. A square block 107c is fixedly installed on the top of the stabilizing plate 107e. A limiting rod 107b is rotatably connected inside the square block 107c. A rotating bolt 107d is provided at one end of the limiting rod 107b. A triangular block 107a is provided on the top of the stabilizing plate 107e.

[0032] Preferably, after the support plate is installed, the positions of the connecting rod 106 and the stabilizing plate 107e are adjusted so that the limiting rod 107b abuts against one side of the connecting rod 106. At this time, the rotating bolt 107d constrains the limiting rod 107b, thereby preventing the support plate and the connecting rod 106 from shifting.

[0033] The connector 104a-3 includes a first moving block 104a-3a and a second moving block 104a-3f, which are slidably connected. The first moving block 104a-3a has a sliding groove 104a-3c inside.

[0034] The first moving block 104a-3a has a second limiting block 104a-3g inside, the top of the second moving block 104a-3f has a first limiting block 104a-3d, and the top of the second moving block 104a-3f has a reset spring 104a-3b.

[0035] Furthermore, if a hard object is present in a local location, the second moving block 104a-3f will be compressed, causing it to slide in the sliding groove 104a-3c, thereby compressing the return spring 104a-3b. This adapts to different geological conditions. If no hard object is present at the bottom of the other plug pins 104a-3, they will directly enter the foundation.

[0036] It should be noted that the mounting nail 107f can also be implemented using the plug-in nail 104a-3 method.

[0037] In summary, the first extension rod 101 and the second extension rod 102 enhance the lateral adaptability of the support plate, and together with the limiting guide rail 103 and the moving part 105, the support plate always receives good lateral support. Furthermore, the special plug-in pins ensure that a single plug-in pin will retract when subjected to a hard object, without affecting the normal use of other plug-in pins.

[0038] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A rapid installation device for a foundation pit maintenance support structure, characterized in that: include, The mounting mechanism (100) includes a first extension rod (101), which is slidably connected to a second extension rod (102). The first extension rod (101) is disposed on one side of a support plate, and a limit guide rail (103) is disposed on one side of the support plate. A plurality of first limit holes (103a) are opened on one side of the limit guide rail (103), and a moving part (105) is slidably connected to the outer side of the limit guide rail (103).

2. The rapid installation device for the foundation pit maintenance support structure according to claim 1, characterized in that: A second limiting hole (105a) is provided above the moving part (105).

3. The rapid installation device for the foundation pit maintenance support structure according to claim 2, characterized in that: A fixing plate (104) is provided on one side of the bottom of the support plate, and a pressing member (104a) is provided on one side of the fixing plate (104). A long plate (104a-2) is fixedly connected to the bottom of the pressing member (104a), and a number of plug pins (104a-3) are fixedly provided on the bottom of the long plate (104a-2).

4. The rapid installation device for the foundation pit maintenance support structure according to claim 3, characterized in that: A connecting rod (106) is hinged to one side of the moving part (105), and a stabilizing plate (107e) is hinged to one end of the connecting rod (106).

5. The rapid installation device for the foundation pit maintenance support structure according to claim 4, characterized in that: A square block (107c) is fixedly installed on the top of the stabilizing plate (107e). A limiting rod (107b) is rotatably connected inside the square block (107c). A rotating bolt (107d) is provided at one end of the limiting rod (107b). A triangular block (107a) is provided on the top of the stabilizing plate (107e).

6. The rapid installation device for the foundation pit maintenance support structure according to claim 5, characterized in that: The insertion pin (104a-3) includes a first moving block (104a-3a) and a second moving block (104a-3f), the first moving block (104a-3a) and the second moving block (104a-3f) are slidably connected, and a sliding groove (104a-3c) is provided inside the first moving block (104a-3a).

7. The rapid installation device for the foundation pit maintenance support structure according to claim 6, characterized in that: The first moving block (104a-3a) is provided with a second limiting block (104a-3g) inside, the second moving block (104a-3f) is provided with a first limiting block (104a-3d) on the top, and the second moving block (104a-3f) is provided with a return spring (104a-3b) on the top.

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