A soil excavation foundation pit protection device

Abstract

The utility model discloses a kind of earthwork excavation foundation pit protection devices, including the fence unit of being spliced into protective space by multiple, any two adjacent fence units are connected by fixed mechanism, and fence unit includes blocking net and the several hanging holes of the two side edges thereof from top to bottom interval arrangement;Fixed mechanism includes pillar and the fixed ring of multiple being sleeved on pillar, two hook bodies are outwardly protruded on each fixed ring, and two the hook bodies are respectively hung on the hanging hole of two adjacent blocking net to realize connection.The utility model uses pillar and blocking net to surround foundation pit, cooperate with the sliding of fixed ring on pillar, so as to pull the fixed ring of uppermost layer, the blocking height of blocking net can be changed, and different foundation pit protection environment is adapted.

Description

Technical Field

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

[0002] During the construction of medical buildings, the excavated foundation pit needs to be protected. Currently, the main protective device used is the support plate enclosure. The traditional support plate enclosure has a basically fixed length, and each support plate enclosure requires two columns for auxiliary fixation. These enclosures are wrapped around the foundation pit, requiring a large number of columns, which significantly prolongs the operation time for all the fixing rings. Furthermore, since the area around the foundation pit is generally large on construction sites, a large number of enclosure plates are needed. Adjusting their height sequentially requires a significant amount of operation time. Increasing the length of the enclosure plates would make each plate too heavy, affecting the lifting of the enclosure.

[0003] In summary, although existing excavation pit protection components have been continuously innovated and developed to basically meet people's needs, there is still room for improvement. Therefore, there is an urgent need for a construction excavation pit protection device to solve the above problems. Utility Model Content

[0004] In view of the defects of the existing technology, the purpose of this utility model is to provide a protective device for earthwork excavation pits.

[0005] To achieve the above objectives, this utility model provides a protective device for excavated foundation pits, comprising multiple enclosure units spliced ​​together to form a protective space. Any two adjacent enclosure units are connected by a fixing mechanism. Each enclosure unit includes a barrier net and several hanging holes spaced apart from top to bottom on both sides.

[0006] The fixing mechanism includes a support column and multiple fixing rings fitted onto the support column. Each fixing ring has two hooks protruding outwards, and the two hooks are respectively hooked onto the hook holes of two adjacent barrier nets to achieve connection.

[0007] Furthermore, the barrier net is provided with strips of burlap fixed to it at intervals from top to bottom, and the hanging holes are provided at both ends of each strip of burlap.

[0008] Furthermore, the fixing ring includes a ring body integrally formed from an inner side and an outer side, the center of the ring body forming a receiving cavity for accommodating a support post, a threaded sleeve is vertically welded to the outer side of the fixing ring, the threaded sleeve passes through the inner side of the ring body and extends to the receiving cavity at the center of the ring body, a bolt is screwed into the threaded sleeve and presses against the outer side of the support post.

[0009] Furthermore, an annular groove is formed in the middle of the outer side of the ring body, and a T-bar is integrally connected to the end of the hook body, with the T-bar being built into the annular groove.

[0010] Furthermore, the included angle between the installation directions of the two hooks on each of the fixing rings is 0 to 180 degrees.

[0011] Furthermore, the support column is made of seamless steel pipe with a hot-dip galvanized layer on the surface.

[0012] Furthermore, the bottom of the support column is pointed, and the top of the support column is curved to form an inverted handle with a bending radius of 50mm.

[0013] Furthermore, a steel plate foot pedal is welded 300mm from the bottom of the support column, and the surface of the steel plate foot pedal is provided with anti-slip patterns.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses pillars and a barrier net to surround the foundation pit. With fixing rings sliding on the pillars, the height of the barrier net can be changed by pulling the topmost fixing ring. The operation is convenient and reliable. Compared to traditional support plate barriers, the barrier net is lighter and easier to lift. Furthermore, the longer length of the barrier net reduces the number of pillars required and shortens the operation time for all fixing rings. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a top-view perspective view of the overall structure of this utility model.

[0018] Figure 2 This is a top-view perspective view of the support structure of this utility model.

[0019] Figure 3 This is a top-view perspective view of the fixed mechanism structure of this utility model in an exploded state.

[0020] Figure 4 This is a three-dimensional schematic diagram of the overall structure of the barrier net of this utility model in a stretched state.

[0021] Figure 5 This is a partial cut diagram of the overall structure of the barrier net of this utility model.

[0022] The names represented by the part numbers in the above diagram are as follows:

[0023] 100. Enclosure unit; 110. Support post; 111. Barrier net; 112. Footboard; 113. Hanging hole; 114. Linen strip; 200. Fixing mechanism; 210. Fixing ring; 211. Screw sleeve; 212. Hook; 213. Annular groove; 214. T-bar. Detailed Implementation

[0024] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order.

[0026] Please see Figure 1-4 This utility model provides a protective device for excavated foundation pits, including multiple enclosure units 100 spliced ​​together to form a protective space. Any two enclosure units 100 are connected by a fixing mechanism 200. The minimum number of enclosure units 100 is three. Three can be spliced ​​together to form a triangular protective space, four enclosure units 100 can form a square protective space, and so on. The foundation pit is surrounded by the enclosed protective space. The enclosure unit 100 includes a barrier net 111 and a number of hanging holes 113 spaced from top to bottom on both sides. It is connected to the fixing mechanism through the hanging holes 113.

[0027] The support column 110 of this utility model is made of seamless steel pipe with a length of 2000-2500mm and a hot-dip galvanized layer on the surface, which can effectively prevent corrosion. The bottom of the support column 110 is pointed, which can be easily inserted into the soil. The top of the support column 110 is bent to form an inverted handle with a bending radius of 50mm. The inverted handle is convenient for the user to hold and apply force to insert the support column 110 into the soil.

[0028] The fixing mechanism 200 includes a support column 110 and multiple fixing rings 210 fitted on the support column 110. Each fixing ring 210 has two outwardly protruding hooks 212, which are respectively hooked onto the hook holes 113 of two adjacent barrier nets 111 to achieve connection.

[0029] In the above scheme, the barrier net 111 adopts a mesh structure, which is cut and shaped from a whole piece of mesh fabric, and burlap strips 114 are arranged at intervals from top to bottom and fixed on the barrier net 111, and hanging holes 113 are opened through both ends of each burlap strip 114. Figure 1 The mesh section is folded. Figure 4 and Figure 5 When stretched, the top and bottom edges of the hanging holes 113 on the barrier net 111 are sealed with burlap strips 114. Otherwise, relying solely on the mesh fabric at the hanging holes 113 would result in insufficient tensile strength. The burlap strips 114 increase the tensile strength at the hanging holes 113. The area between the two hanging holes 113 of the burlap strips 114 can be tied to the barrier net 111 with steel wire or other structures to achieve overall shape stability. Each hanging hole 113 is inlaid with a metal ring for easy operation and to improve strength.

[0030] The fixing ring 210 includes a ring body integrally formed from an inner and outer surface. A receiving cavity is formed at the center of the ring body to accommodate the support column 110. A threaded sleeve 211 is vertically welded to the outer surface of the ring body. The threaded sleeve 211 passes through the inner surface of the ring body and extends to the receiving cavity at the center of the ring body. A bolt is screwed into the threaded sleeve 211 and tightens against the outer surface of the support column 110. The structure of the threaded sleeve 211 is mainly used to tighten the support column 110 by screwing a bolt into the threaded sleeve 211 after the position of the fixing ring 210 on the entire support column 110 is determined. Tightening the bolt generates static friction on the surface of the support column 110, preventing the fixing ring 210 from slipping and ensuring the stability of the fixing ring 210's position. Generally, only the top fixing ring 210 needs to be fixed, because the entire barrier net 111 is a single piece. Once the top fixing ring 210 is fixed to the support column 110, the height of the entire barrier net 111 is fixed. Whether the other fixing rings 210 on the support column 110 are tightened with bolts or not does not affect the formation of the entire enclosure structure.

[0031] See Figure 4 An annular groove 213 is formed in the middle of the outer side of the ring body. A T-bar 214 is integrally connected to the end of the hook body 212. The T-bar 214 is built into the annular groove 213 and can slide along the annular groove 213 to adjust its position and direction. The angle between the installation directions of the two hook bodies 212 on each fixing ring 210 is 0 to 180 degrees, and the angle of the hook body 212 can be adjusted according to the shape of the protected space to be enclosed. Figure 1As shown, when four enclosure units 100 are needed to form a square protective space, two hooks 212 need to be slid along the annular groove 213 and adjusted to a 90-degree direction, and then each hook 212 is hung on the corresponding hanging hole 113 of the barrier net 111.

[0032] A steel plate foot pedal 112 is welded 300mm from the bottom of the support column 110. The steel plate foot pedal 112 allows for easy application of force by stepping on it during the insertion of the support column into the soil. The surface of the steel plate foot pedal 112 is provided with anti-slip patterns, which can improve the anti-slip effect.

[0033] The working principle and usage of this utility model:

[0034] During construction, based on the construction needs and the situation of the excavated foundation pit, a suitable protective space height is determined, and an appropriate barrier net 111 is selected. By hanging the hooks 212 on each fixing ring 210 on the support column 110 into the corresponding hanging holes 113, and then screwing the bolts into the threaded sleeves 211 on the uppermost fixing ring 210 and tightening them, a complete protective device is formed, and construction can proceed. According to the foundation pit specifications, the height of the net needs to be raised periodically. Therefore, after a certain period of construction, the bolts need to be loosened, moved up, and then tightened again periodically.

[0035] This invention uses pillars and a barrier net to surround the foundation pit. With the addition of fixing rings that slide on the pillars, the height of the barrier net can be changed by pulling the top fixing ring. The operation is convenient and reliable. Compared to traditional support plate barriers, the barrier net is lighter and easier to lift. It is also longer, whereas traditional support plate barriers have a fixed length and require two pillars for each barrier to secure it, wrapping around the foundation pit – essentially requiring many pillars. Using a barrier net, the net's length is already longer than that of the support plate, and it is lighter, requiring fewer pillars and reducing the time needed to operate all the fixing rings.

[0036] The above description is only used to illustrate the technical solution of this utility model, and is not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A protective device for excavated foundation pits, characterized in that: It includes multiple fence units (100) spliced ​​together to form a protective space. Any two adjacent fence units (100) are connected by a fixing mechanism (200). The fence unit (100) includes a barrier net (111) and a number of hanging holes (113) spaced from top to bottom on both sides. The fixing mechanism (200) includes a support column (110) and a plurality of fixing rings (210) fitted on the support column (110). Each fixing ring (210) has two hooks (212) protruding outward. The two hooks (212) are respectively hooked onto the hook holes (113) of two adjacent barrier nets (111) to achieve connection.

2. The earthwork excavation pit protection device according to claim 1, characterized in that: The barrier net (111) is a stacked mesh fabric. The barrier net (111) is provided with burlap strips (114) fixed on the barrier net at intervals from top to bottom, and the hanging holes (113) are opened through both ends of each burlap strip (114).

3. The earthwork excavation pit protection device according to claim 1, characterized in that: The fixing ring (210) includes a ring body integrally formed from an inner side and an outer side. The center of the ring body forms a receiving cavity for accommodating the support column (110). A threaded sleeve (211) is vertically welded to the outer side of the fixing ring (210). The threaded sleeve (211) passes through the inner side of the ring body and extends to the receiving cavity at the center of the ring body. A bolt is screwed into the threaded sleeve (211) and presses against the outer side of the support column (110).

4. The earthwork excavation pit protection device according to claim 3, characterized in that: An annular groove (213) is provided in the middle of the outer side of the ring body, and a T-bar (214) is integrally connected to the end of the hook body (212), and the T-bar (214) is built into the annular groove (213).

5. The earthwork excavation pit protection device according to claim 4, characterized in that: The angle between the installation directions of the two hooks (212) on each of the fixed rings (210) is 0 to 180 degrees.

6. The earthwork excavation pit protection device according to claim 1, characterized in that: The support column (110) is made of seamless steel pipe with a hot-dip galvanized coating.

7. The earthwork excavation pit protection device according to claim 1, characterized in that: The bottom of the support column (110) is pointed, and the top of the support column (110) is bent to form a backward bend handle with a bending radius of 50mm.

8. The earthwork excavation pit protection device according to claim 1, characterized in that: The support column (110) is welded with a steel plate foot pedal (112) 300mm from the bottom end, and the surface of the steel plate foot pedal (112) is provided with anti-slip pattern.

Images