Safety protection fence for deep foundation pit excavation

Abstract

The utility model discloses a safety protection fence for deep foundation pit excavation, which comprises a vertical pipe and a protection mechanism, the protection mechanism comprises a plurality of protection fences arranged on the inner side of the vertical pipe, the front sides and the rear sides of the protection fences are hinged through hinges, the bottom of the vertical pipe is fixedly connected with a base, and the bottom of the vertical pipe is fixedly connected with the base. The surface of the base can be fixed to the ground through expansion bolts, fixing frames are fixedly connected to the inner sides of the vertical pipes, and the outer sides of the protective fences are inserted into the fixing frames and fixedly connected through bolts. When the protective fence is put into use, the length limitation of a traditional protective fence in the aspect of storage is changed through the synergistic effect of the protective mechanism, the limiting mechanism, the releasing assembly and the placing mechanism. Through cooperation of a plurality of mechanisms, the storage shape of the protective fence can be changed, the problem that the storage space is too large due to the fact that the shape of the protective fence is fixed and invariable is effectively avoided, and the use convenience and the space utilization rate of the device are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology for deep foundation pit excavation, specifically a safety protection fence for deep foundation pit excavation. Background Technology

[0002] Safety barriers for deep foundation pit excavation are physical barriers set up around the edge of the deep foundation pit. They are usually made of steel pipes, metal mesh or standardized components. They use eye-catching yellow and black or red and white striped paint and warning signs to enhance the awareness of the dangerous area among on-site personnel and effectively reduce the risk of construction accidents.

[0003] For example, Chinese Patent Application No. 202021029332.X discloses a foundation pit protection railing, belonging to the technical field of building construction. It includes a railing body, with a vertical post hinged to one side and a connecting rod vertically erected on the other side. The connecting rod and the vertical post are located on opposite sides of the railing body, and a plug-in assembly is provided between the vertical post and the connecting rod on an adjacent railing body. This utility model enables rapid erection and dismantling of adjacent railings.

[0004] In practical applications of safety fencing for deep foundation pit excavation, a common design is an integrated structure. While this structure ensures the overall stability and protective effectiveness of the fencing, it has significant drawbacks in terms of storage: its horizontally extending layout requires a large amount of horizontal space for storage, and because the structure is fixed and its shape cannot be changed, it is difficult to flexibly adjust it according to the actual storage space. Ultimately, this results in low overall storage space utilization and increases site occupation and transportation costs.

[0005] Therefore, it is necessary to redesign and modify the safety guardrails used for deep foundation pit excavation to effectively prevent them from becoming immutable. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a safety protection fence for deep foundation pit excavation, which has the advantages of being easy to use and solves the problem of its invariable shape.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a safety guardrail for deep foundation pit excavation, comprising a vertical pipe and a protective mechanism. The protective mechanism includes multiple guardrails disposed on the inner side of the vertical pipe. The front and rear sides of the guardrails are hinged together by hinges. A base is fixedly connected to the bottom of the vertical pipe. The surface of the base can be fixed to the ground by expansion bolts. A fixing frame is fixedly connected to the inner side of the vertical pipe. The outer side of the guardrail is inserted into the interior of the fixing frame and fixedly connected by bolts. A limit mechanism is provided on the inner side of the vertical pipe.

[0008] As a preferred embodiment of this utility model, the limiting mechanism includes a limiting frame movably connected to the top of the guardrail, the limiting frame preventing the guardrail from shaking and folding, and fixing boxes fixedly connected to the left and right sides of the top of the limiting frame, with a locking block slidably connected to the inner wall of the fixing box, a spring fixedly connected to the inner side of the locking block, the inner side of the spring fixedly connected to the inner wall of the fixing box, the limiting box movably connected to the surface of the locking block, the bottom of the limiting box fixedly connected to the top of the fixing frame, and a release component provided on the inner side of the vertical tube.

[0009] As a preferred embodiment of this utility model, the release assembly includes a linkage plate fixedly connected to the inner side of the locking block, and a toggle plate fixedly connected to the inner side of the linkage plate. The toggle plate facilitates the operator to release the locking state of the locking block with one hand. A long bolt is slidably connected to the inner wall of the toggle plate, and the long bolt can ensure the stability of the synchronous movement of the toggle plate. Placement mechanisms are provided on the front and rear sides of the vertical tube.

[0010] As a preferred embodiment of this utility model, the placement mechanism includes support blocks fixedly connected to the bottom of the front and rear sides of the vertical tube. Support feet are hinged to the outer side of the support blocks, and fixing bolts are threaded to the inner wall of the support feet. The bottom end of the fixing bolts is threaded to the inner wall of the base. When the vertical tube is not fixed to the ground with the base, it can be placed on the ground for use through the support feet.

[0011] As a preferred embodiment of this invention, each of the support feet is fixedly connected to a pad, which increases the stability of the support foot.

[0012] As a preferred embodiment of this utility model, the surface of the vertical tube is provided with a threaded hole, which can be used to fix the support foot to the vertical tube by fixing bolts, making it convenient for storage and refurbishment.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When this utility model is used, under the action of the protective mechanism, the limiting mechanism, the release component and the placement mechanism, the storage shape of the guardrail can be changed, avoiding the large space occupation caused by the fixed shape of the guardrail, and giving it the advantage of being easy to use.

[0015] 2. By setting a limiting mechanism, this utility model can quickly limit and fix the shape of the guardrail, thereby increasing its stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the protective mechanism of this utility model;

[0018] Figure 3This is a partial cross-sectional view of the release component of this utility model;

[0019] Figure 4 This is the placement mechanism of this utility model.

[0020] In the diagram: 1. Vertical pipe; 2. Guardrail; 3. Base; 4. Fixing frame; 5. Limiting frame; 6. Fixing box; 7. Locking block; 8. Spring; 9. Limiting box; 10. Linkage plate; 11. Actuating plate; 12. Long bolt; 13. Support block; 14. Support foot; 15. Fixing bolt; 16. Pad; 17. Threaded hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 4 As shown, the present invention provides a safety guardrail for deep foundation pit excavation, including a vertical pipe 1 and a protective mechanism. The protective mechanism includes multiple guardrails 2 set inside the vertical pipe 1. The front and rear sides of the guardrails 2 are hinged together by hinges. A base 3 is fixedly connected to the bottom of the vertical pipe 1. The surface of the base 3 can be fixed to the ground by expansion bolts. A fixing frame 4 is fixedly connected to the inside of the vertical pipe 1. The outer side of the guardrail 2 is inserted into the inside of the fixing frame 4 and fixedly connected by bolts. A limit mechanism is provided inside the vertical pipe 1.

[0023] refer to Figure 3 The limiting mechanism includes a limiting frame 5 movably connected to the top of the guardrail 2. The limiting frame 5 can prevent the guardrail 2 from shaking and folding. Fixed boxes 6 are fixedly connected to the left and right sides of the top of the limiting frame 5. A locking block 7 is slidably connected to the inner wall of the locking box 6. A spring 8 is fixedly connected to the inner side of the locking block 7. The inner side of the spring 8 is fixedly connected to the inner wall of the locking box 6. A limiting box 9 is movably connected to the surface of the locking block 7. The bottom of the limiting box 9 is fixedly connected to the top of the fixing frame 4. A release component is provided on the inner side of the vertical tube 1.

[0024] As a technical optimization of this utility model, by setting a limiting mechanism, the shape of the guardrail 2 can be quickly limited and fixed, thereby increasing its stability.

[0025] refer to Figure 3The release assembly includes a linkage plate 10 fixedly connected to the inside of the locking block 7. A toggle plate 11 is fixedly connected to the inside of the linkage plate 10. The toggle plate 11 allows the operator to release the locking state of the locking block 7 with one hand. A long bolt 12 is slidably connected to the inner wall of the toggle plate 11. The long bolt 12 can ensure the stability of the synchronous movement of the toggle plate 11. Placement mechanisms are provided on the front and rear sides of the vertical tube 1.

[0026] As a technical optimization of this utility model, by setting a release component, the limiting mechanism can be quickly released and installed during use, increasing its ease of use.

[0027] refer to Figure 4 The placement mechanism includes support blocks 13 fixedly connected to the bottom of the front and rear sides of the vertical pipe 1. Support feet 14 are hinged to the outside of the support blocks 13. Fixing bolts 15 are threaded to the inner wall of the support feet 14. The bottom end of the fixing bolts 15 is threaded to the inner wall of the base 3. When the vertical pipe 1 is not fixed to the ground by the base 3, it can be placed on the ground for use through the support feet 14.

[0028] As a technical optimization of this utility model, by setting up a placement mechanism, its functionality can be increased, allowing the protective mechanism to be placed directly on the ground for use without being fixed by the base 3.

[0029] refer to Figure 4 Each support foot 14 has a pad 16 fixedly connected to its bottom, which increases the stability of the support foot 14.

[0030] As a technical optimization of this utility model, by setting the pad 16, the support area of ​​the support foot 14 can be increased, thereby increasing its support stability.

[0031] refer to Figure 2 The surface of the vertical tube 1 is provided with a threaded hole 17, which can be used to fix the support foot 14 to the vertical tube 1 by fixing bolt 15, so as to facilitate storage and refurbishment.

[0032] As a technical optimization of this utility model, by setting the threaded hole 17, the support foot 14 can be easily fixedly connected to the surface of the vertical tube 1, making it convenient for storage.

[0033] The working principle and usage process of this utility model are as follows: During use, the overall structure, consisting of a vertical tube 1, a protective mechanism, a limiting mechanism, a release component, and a placement mechanism, works in concert to achieve multiple functions including protection, fixation, and storage. During normal installation, the base 3 at the bottom of the vertical tube 1 is fixed to the ground with expansion bolts, ensuring the entire structure is stably positioned. At this time, multiple protective railings 2, hinged together on the front and back sides, are installed inside the vertical tube 1. The outer side of the protective railings 2 is inserted into the fixing frame 4 inside the vertical tube 1 and fixed with bolts, forming a fence structure with protective functions. The fence, through hinges installed in a staggered manner, can be flipped and merged, thereby changing its storage shape and reducing its storage length. The limiting frame 5 installed at the top of the protective railings 2 effectively prevents the protective railings 2 from shaking and folding, ensuring its stability and safety during normal use. Under the action of spring 8, the locking block 7 inside the top fixing box 6 of the limiting frame 5 is movably connected to the limiting box 9 fixed on the top of the fixing frame 4 (the locking block 7 can be inserted into the limiting box 9), further strengthening the limiting effect of the limiting frame 5 on the guardrail 2, ensuring that the guardrail 2 is not easily moved or deformed when subjected to external force. When it is necessary to adjust the state of the guardrail 2 (such as folding and storing), the release and adjustment stage is entered. The operator operates the actuating plate 11 with one hand. The actuating plate 11 drives the linkage plate 10 fixedly connected on the inner side. The linkage plate 10 then drives the locking block 7 to slide in the fixing box 6, overcoming the elastic force of spring 8 and causing the locking block 7 to disengage from the limiting box 9, releasing the locking of the limiting frame 5, and thus releasing the limiting of the guardrail 2, realizing the folding or adjustment of the guardrail 2. The long bolt 12 slidably connected to the inner wall of the actuating plate 11 ensures the synchronicity and stability of the movement of the actuating plate 11, making the operation smoother. If the vertical tube 1 is not fixed to the base 3 and needs to be placed on the ground, the support leg 14 can be unfolded from the support block 13 to make it contact the ground and support the entire structure, allowing the entire guardrail 2 to be placed and used directly. The pad 16 fixedly connected to the bottom of the support leg 14 increases the contact area and friction with the ground, improving the stability of the support leg 14. When storing, the support leg 14 is folded, and the support leg 14 is fixed to the vertical tube 1 using the threaded holes 17 on the surface of the vertical tube 1 and the fixing bolts 15, making it easy to store and carry. This avoids the large space occupation caused by the fixed shape of the guardrail 2, giving it the advantage of being easy to use.

[0034] In summary, when this utility model is used, the protective mechanism, the limiting mechanism, the release component, and the placement mechanism can change the storage shape of the guardrail 2, avoiding the large space occupation caused by the fixed shape of the guardrail 2, and giving it the advantage of being easy to use.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety guardrail for deep foundation pit excavation, comprising a vertical pipe (1), characterized in that: The protective mechanism includes multiple guardrails (2) installed inside the vertical tube (1). The front and rear sides of the guardrails (2) are hinged together. A base (3) is fixedly connected to the bottom of the vertical tube (1). The surface of the base (3) can be fixed to the ground by expansion bolts. A fixed frame (4) is fixedly connected to the inside of each vertical tube (1). The outer side of the guardrail (2) is inserted into the inside of the fixed frame (4) and fixedly connected by bolts. A limit mechanism is provided inside the vertical tube (1). The limit mechanism includes a limiter that is movably connected to the top of the guardrail (2). The frame (5) is designed to prevent the guardrail (2) from shaking and folding. The left and right sides of the top of the frame (5) are fixedly connected to the fixing boxes (6). The inner wall of the fixing box (6) is slidably connected to the locking block (7). The inner side of the locking block (7) is fixedly connected to the spring (8). The inner side of the spring (8) is fixedly connected to the inner wall of the fixing box (6). The surface of the locking block (7) is movably connected to the limiting box (9). The bottom of the limiting box (9) is fixedly connected to the top of the fixing frame (4). The inner side of the vertical tube (1) is provided with a release component.

2. A safety protection fence for deep foundation pit excavation according to claim 1, characterized in that: The release assembly includes a linkage plate (10) fixedly connected to the inside of the locking block (7). A toggle plate (11) is fixedly connected to the inside of the linkage plate (10). The toggle plate (11) allows the operator to release the locking state of the locking block (7) with one hand. A long bolt (12) is slidably connected to the inner wall of the toggle plate (11). The long bolt (12) can ensure the stability of the synchronous movement of the toggle plate (11). Placement mechanisms are provided on the front and rear sides of the vertical tube (1).

3. A safety protection fence for deep foundation pit excavation according to claim 2, characterized in that: The placement mechanism includes a support block (13) fixedly connected to the bottom of the front and rear sides of the vertical tube (1). The support block (13) has a support foot (14) hinged to its outer side. The inner wall of the support foot (14) is threaded with a fixing bolt (15). The bottom end of the fixing bolt (15) is threaded to the inner wall of the base (3). When the vertical tube (1) is not fixed to the ground by the base (3), it can be placed on the ground by the support foot (14).

4. A safety protection fence for deep foundation pit excavation according to claim 3, characterized in that: Each of the support feet (14) has a pad (16) fixedly connected to its bottom, which can increase the stability of the support feet (14).

5. A safety protection fence for deep foundation pit excavation according to claim 4, characterized in that: The surface of the vertical tube (1) is provided with a threaded hole (17). The threaded hole (17) can be used to fix the support foot (14) to the vertical tube (1) by fixing bolt (15), which is convenient for storage and storage.

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