Multi-head adjustable support node and foundation pit multi-node support structure
By using multi-head adjustable support nodes and a multi-node support structure for the foundation pit, flexible connection and angle adjustment of the support rods are achieved, solving the problem that traditional figure-eight support nodes cannot adapt to irregular foundation pits, and improving the stability and economy of foundation pit support.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广州宏途设备工程有限公司
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-21
AI Technical Summary
The fixed angle and connection method of traditional figure-eight bracing nodes make them unsuitable for irregularly shaped foundation pits, increasing construction difficulty and cost, and affecting the support effect.
The system employs multi-head adjustable support nodes, which combine fixed rods, steering components, and connecting rods to achieve flexible connection and angle adjustment of multiple support rods, and enhances the overall support structure in conjunction with walers.
Increasing the distance between supports reduces the amount of support rods used, lowers costs, and improves the stability and adaptability of foundation pit support, making it suitable for complex foundation pit environments.
Smart Images
Figure CN224531684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil engineering construction technology, and in particular to a multi-head adjustable support node and a multi-node support structure for foundation pits. Background Technology
[0002] In modern building construction, foundation pit support engineering plays a crucial role in ensuring construction safety and the smooth progress of projects. With the continuous expansion of urban underground space development, various deep foundation pit projects adjacent to existing structures are emerging, placing increasingly higher demands on foundation pit support technology.
[0003] The herringbone joint used in foundation pit support not only ensures the safety of the foundation pit support but also increases the distance between supports, resulting in a larger working space, convenient construction, and reduced support quantity, thus saving support costs. As a key component in the foundation pit support system, the herringbone joint effectively improves the stability and load-bearing capacity of the support structure. Its proper application can optimize the support design scheme, reduce project costs, and provide more operating space for construction inside the foundation pit, thereby improving construction efficiency.
[0004] However, traditionally, eight-piece joints are typically connected using cut-and-weld joints. This method has many drawbacks, such as stress concentration at the joint, susceptibility to welding defects, low on-site processing efficiency, and difficulty in guaranteeing quality. This not only affects the load-bearing performance and reliability of the eight-piece joint but also increases construction costs and time. Furthermore, traditionally, only prefabricated joints with angles of 30° and 45° are typically used, and the limitations in angle and specifications restrict their application in practical engineering projects.
[0005] With economic development and increasingly complex building designs, irregularly shaped foundation pits have frequently emerged. These pits, with their irregular shapes and complex boundary conditions, place higher demands on the design and construction of foundation pit support structures. One or two fixed-angle V-brace nodes and the number of nodes they can connect are no longer sufficient for complex support scenarios. Furthermore, due to the limited angle, when dealing with foundation pits of different shapes and sizes, it is often necessary to cut and weld a large amount of steel to adapt to the pit shape. This not only wastes materials but may also lead to uneven stress on the nodes, significantly limiting the design and on-site support capabilities. Utility Model Content
[0006] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide a multi-head adjustable support node and a multi-node support structure for foundation pits, so as to solve the problem that the fixed-angle foundation pit support node in the prior art cannot be adapted to irregular foundation pits, thereby increasing the construction difficulty and affecting the support effect.
[0007] To solve the above-mentioned technical problems, this utility model provides a multi-head adjustable support node for connecting multiple support rods installed in the foundation pit, including:
[0008] The device includes a fixed rod and one or more steering components, wherein the steering component includes a first hinge member and a second hinge member, one end of the first hinge member is hinged to one end of the second hinge member, and the other end of the first hinge member is fixed to the fixed member;
[0009] One or more connecting rods are provided, one end of which is fixed to the other end of the second hinge member. The fixed rod is fixed to one of the support rods and connected to other support rods through the other end of the connecting rod. The steering member is adjusted to drive the other support rods to rotate, so as to adapt to support scenarios with various angles, increase the distance between supports and the working space, facilitate construction, reduce the number of support rods, and save support costs.
[0010] As a more preferred embodiment, the first hinge component includes a first fixed plate and two first hinge plates that are perpendicularly fixed to the first fixed plate and arranged parallel to each other. Its advantages are that it clarifies the specific structure of the first hinge component. The first fixed plate and the two parallel first hinge plates provide a stable basic structure for subsequent hinges. This structural design can ensure the stability and reliability of the connection between the first hinge component and the second hinge component, provide a strong guarantee for the flexible turning function of the support node, and enhance the load-bearing capacity and service life of the entire support node.
[0011] As a more preferred embodiment, the first hinge member further includes a first reinforcing plate vertically fixed to the first fixed plate, the first reinforcing plate being perpendicular to both of the first hinge plates. The advantage of this is that the addition of the first reinforcing plate, which is perpendicular to both first hinge plates, further improves the overall strength and stability of the first hinge member. When subjected to large supporting forces, it can effectively prevent deformation of the first hinge member, ensuring the normal operation of the steering component, thereby enhancing the adaptability and reliability of the multi-head adjustable support node in complex foundation pit environments and extending its service life.
[0012] As a more preferred embodiment, the first hinge plate includes a first fixing part for fixedly connecting to the first fixed plate and a first connecting part integrally formed above the first fixing part. The two sides of the first connecting part are chamfered to prevent interference between the first hinge plate and the first fixed plate during rotation, thus satisfying the rotation angle of the first hinge plate. The beneficial effect is that the structure of the first hinge plate is optimized by chamfering the two sides of the first connecting part, avoiding interference during rotation between the first hinge plate and the first fixed plate. This allows the first hinge plate to achieve a larger rotation angle, thereby increasing the adjustment range of the steering component, enhancing the adaptability of the support node to different support scenarios, and providing greater convenience for construction.
[0013] As a more preferred embodiment, the second hinge member includes a second fixed plate and two second hinge plates vertically fixed to the second fixed plate. The spacing between the two second hinge plates matches the spacing between the two first hinge plates. The advantage of this design is that it defines the specific structure of the second hinge member, and the second fixed plate and the two appropriately spaced second hinge plates allow for accurate and tight connection between the first and second hinge members. This design ensures the hinge accuracy and stability of the steering component, provides a foundation for flexible and reliable connection between support rods, and ensures the normal operation and support effect of the multi-head adjustable support node.
[0014] As a more preferred embodiment, the second hinge member further includes a second reinforcing plate vertically fixed to the second fixed plate, the second reinforcing plate being perpendicular to both second hinge plates. The advantage of this is that the perpendicularity of the second reinforcing plate to the two second hinge plates enhances the structural strength of the second hinge member. In complex foundation pit support environments, it can effectively resist external forces, prevent deformation of the second hinge member, improve the stability and reliability of the steering component, ensure the long-term stable operation of the support node, and provide a guarantee for the safety of foundation pit support.
[0015] As a more preferred embodiment, the second hinge plate includes a second fixing part for fixedly connecting to the second fixed plate and a second connecting part integrally formed above the second fixing part. The two sides of the second connecting part are chamfered to avoid interference between the second hinge plate and the second fixed plate during rotation, allowing for a larger rotation angle of the second hinge plate. The beneficial effect is that the structure of the second hinge plate is improved by chamfering the two sides of the second connecting part, avoiding interference between the second hinge plate and the second fixed plate during rotation. This allows for a larger rotation angle of the second hinge plate, further expanding the adjustment range of the steering component, enabling the support node to better adapt to support scenarios with different angles, and improving the flexibility and adaptability of the foundation pit support.
[0016] As a more preferred embodiment, the first hinge plate and the second hinge plate are respectively provided with a first hinge hole and a second hinge hole. The steering component also includes a pin, which passes through the first hinge hole and the second hinge hole, so that the first hinge component and the second hinge component are hinged to each other. The advantage is that by providing hinge holes on the first and second hinge plates and connecting them with a pin, the first and second hinge components are hinged to each other. This connection method is simple, reliable, and easy to install and disassemble. It also ensures the flexible rotation of the steering component, guarantees the normal adjustment function of the multi-head adjustable support node, and improves the convenience and efficiency of construction.
[0017] To address the aforementioned problems, this utility model also provides a multi-node support structure for foundation pits, comprising:
[0018] Multiple of the aforementioned multi-head adjustable support nodes;
[0019] Multiple support rods, wherein the fixed rod is fixed to one of the support rods and connected to the other support rods through the other end of the connecting rod.
[0020] As a more preferred approach, the multi-node support structure for the foundation pit also includes walers, with one end of each support rod connected to the walers. The advantage lies in the walers, connected to one end of the support rods, enhancing the overall integrity of the foundation pit support. By connecting multiple support rods into a single unit, the rigidity and stability of the support structure are improved. When the foundation pit is subjected to external forces such as soil pressure, the walers can evenly distribute the load, preventing excessive local stress and further ensuring the safety and reliability of the foundation pit support. They also facilitate connection and coordinated operation with other foundation pit support structures, forming a more complete foundation pit support system.
[0021] As described above, the multi-head adjustable support node and multi-node support structure for foundation pits of this utility model have the following beneficial effects: The multi-head adjustable support node of this utility model, through the cooperation of a fixed rod and one or more steering components, and the connecting action of the connecting rod, can achieve flexible connection of multiple support rods. Adjusting the steering component drives the other support rods to rotate, adapting to support scenarios with different angles. Especially for support scenarios of irregularly shaped foundation pits, it can increase the distance between supports, making the working space larger and the construction operation more convenient. At the same time, it reduces the number of support rods used, effectively reducing support costs and improving the economic efficiency of foundation pit support projects while ensuring the foundation pit support effect.
[0022] This utility model discloses a multi-node support structure for foundation pits, which combines multiple multi-head adjustable support nodes with multiple support rods to form a multi-node support structure for foundation pits. This structure can fully utilize the advantages of multi-head adjustable support nodes, flexibly adjusting the position and angle of each support rod according to the shape and size of different foundation pits, thereby achieving effective support for the foundation pit. The coordinated work of multiple support nodes can improve the overall stability and reliability of foundation pit support, meet the support requirements of complex foundation pit projects, and ensure the safety of foundation pit construction.
[0023] This utility model's multi-head adjustable support node and multi-node support structure for foundation pits achieve multi-angle connection of multiple support rods through one or more steering components, enriching the application scenarios and solving the problem that the fixed-angle foundation pit support nodes in the prior art cannot adapt to irregular foundation pits, thereby increasing construction difficulty and affecting the support effect. Attached Figure Description
[0024] Figure 1 The diagram shown is an embodiment of the multi-head adjustable support node of this utility model.
[0025] Figure 2 The diagram shown is a structural schematic of the steering component of the multi-head adjustable support node of this utility model.
[0026] Figure 3 The diagram shows the structure of the first hinge component of the multi-head adjustable support node of this utility model.
[0027] Figure 4 The diagram shows the structure of the first hinge plate of the multi-head adjustable support node of this utility model.
[0028] Figure 5 The diagram shown is a structural schematic of the second hinge component of the multi-head adjustable support node of this utility model.
[0029] Figure 6 The diagram shows the structure of the second hinge plate of the multi-head adjustable support node of this utility model.
[0030] Figure 7 This diagram shows another embodiment of the multi-head adjustable support node of this utility model.
[0031] Figure 8 The diagram shown is a schematic of the multi-node support structure for the foundation pit of this utility model.
[0032] Component designation explanation
[0033] 1 Fixed rod 2 Steering components 21 First hinge component 211 First fixing plate 212 First hinge plate 212a First fixing part 212b First connecting part 212c First hinge hole 213 First reinforcing plate 22 Second hinge component 221 Second fixing plate 222 Second hinge plate 222a Second fixing part 222b Second connecting part 222c Second hinge hole 223 Second reinforcing plate 23 Axle pin 3 Connecting rod 4 support rod 5 purlin 6 Connector Detailed Implementation
[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0035] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.
[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" 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 an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0037] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.
[0038] like Figures 1 to 7As shown, this utility model provides a multi-head adjustable support node for connecting multiple support rods 4 installed in the foundation pit, including:
[0039] The fixed rod 1 and one or more steering components 2, wherein the steering component 2 includes a first hinge component 21 and a second hinge component 22, one end of the first hinge component 21 is hinged to one end of the second hinge component 22, and the other end of the first hinge component 21 is fixed to the fixed component;
[0040] One or more connecting rods 3, one end of which is fixed to the other end of the second hinge member 22, the fixed rod 1 is fixed to one of the support rods 4, and is connected to other support rods 4 through the other end of the connecting rod 3. The steering member 2 is adjusted to drive the other support rods 4 to rotate, so as to adapt to support scenarios with multiple angles.
[0041] To better illustrate the multi-head adjustable support node of this utility model, the following specific application will be used as an example: This utility model, through the cooperation of a fixed rod 1 and one or more steering components 2, and the connecting rod 3, enables the flexible connection of multiple support rods 4. Adjusting the steering component 2 drives the other support rods 4 to rotate, adapting to support scenarios with different angles. Especially for the support of irregularly shaped foundation pits, it can increase the distance between supports, expanding the working space and making construction operations more convenient. At the same time, it reduces the number of support rods 4, effectively lowering support costs and improving the economic efficiency of foundation pit support projects while ensuring the effectiveness of foundation pit support.
[0042] In some possible embodiments of this utility model, such as Figure 7 As shown, the multi-head adjustable support node may also include other fixed-angle connecting seats 6 to meet the connection requirements of the fixed-angle support rod 4.
[0043] In some possible embodiments of this utility model, such as Figure 3 As shown, the first hinge member 21 includes a first fixing plate 211 and two first hinge plates 212 that are vertically fixed to the first fixing plate 211 and arranged parallel to each other. Its beneficial effect is that it clarifies the specific structure of the first hinge member 21. The first fixing plate 211 and the two parallel first hinge plates 212 provide a stable basic structure for subsequent hinges. This structural design can ensure the connection stability and reliability between the first hinge member 21 and the second hinge member 22, provide a strong guarantee for the flexible turning function of the support node, and enhance the load-bearing capacity and service life of the entire support node.
[0044] In some possible embodiments of this utility model, such as Figure 3As shown, the first hinge member 21 further includes a first reinforcing plate 213 vertically fixed to the first fixing plate 211. The first reinforcing plate 213 is perpendicular to both of the first hinge plates 212. The beneficial effect is that the addition of the first reinforcing plate 213, which is perpendicular to both first hinge plates 212, further improves the overall strength and stability of the first hinge member 21. When subjected to large supporting forces, it can effectively prevent deformation of the first hinge member 21, ensuring the normal operation of the steering component 2, thereby enhancing the adaptability and reliability of the multi-head adjustable support node in complex foundation pit environments and extending its service life.
[0045] In some possible embodiments of this utility model, such as Figure 4 As shown, the first hinge plate 212 includes a first fixing part 212a for fixed connection with the first fixing plate 211 and a first connecting part 212b integrally formed above the first fixing part 212a. The two sides of the first connecting part 212b are chamfered to avoid interference between the first hinge plate 212 and the first fixing plate 211 during rotation, thus satisfying the rotation angle of the first hinge plate 212. The beneficial effect is that the structure of the first hinge plate 212 is optimized by chamfering the two sides of the first connecting part 212b, avoiding interference between the first hinge plate 212 and the first fixing plate 211 during rotation. This allows the first hinge plate 212 to achieve a larger rotation angle, thereby improving the adjustment range of the steering component 2, enhancing the adaptability of the support node to different support scenarios, and providing greater convenience for construction. Furthermore, in this embodiment, through the chamfering treatment, the angle adjustment range of the first hinge component is 30°~150°.
[0046] In some possible embodiments of this utility model, such as Figure 5 As shown, the second hinge member 22 includes a second fixed plate 221 and two second hinge plates 222 vertically fixed to the second fixed plate 221. The spacing between the two second hinge plates 222 is adapted to the spacing between the two first hinge plates 212. Its advantage lies in defining the specific structure of the second hinge member 22. The second fixed plate 221 and the two appropriately spaced second hinge plates 222 ensure accurate and tight connection between the first hinge member 21 and the second hinge member 22. This design guarantees the hinge accuracy and stability of the steering component 2, provides a foundation for flexible and reliable connection between the support rods 4, and ensures the normal operation and support effect of the multi-head adjustable support node.
[0047] In some possible embodiments of this utility model, such as Figure 5As shown, the second hinge member 22 further includes a second reinforcing plate 223 vertically fixed to the second fixing plate 221. The second reinforcing plate 223 is perpendicular to both second hinge plates 222. Its beneficial effect is that the arrangement of the second reinforcing plate 223, perpendicular to the two second hinge plates 222, enhances the structural strength of the second hinge member 22. In complex foundation pit support environments, it can effectively resist external forces, prevent deformation of the second hinge member 22, improve the stability and reliability of the steering component 2, ensure the long-term stable operation of the support node, and provide a guarantee for the safety of foundation pit support.
[0048] In some possible embodiments of this utility model, such as Figure 6 As shown, the second hinge plate 222 includes a second fixing part 222a for fixed connection with the second fixing plate 221 and a second connecting part 222b integrally formed on the top of the second fixing part 222a. The two sides of the second connecting part 222b are chamfered to avoid interference between the second hinge plate 222 and the second fixing plate 221 during rotation, thus allowing for a larger rotation angle for the second hinge plate 222. The beneficial effect is that the structure of the second hinge plate 222 is improved by chamfering the two sides of the second connecting part 222b, avoiding interference between the second hinge plate 222 and the second fixing plate 221 during rotation. This allows for a larger rotation angle for the second hinge plate 222, further expanding the adjustment range of the steering component 2, enabling the support node to better adapt to different angle support scenarios, and improving the flexibility and adaptability of the foundation pit support. Furthermore, in this embodiment, through the chamfering treatment, the angle adjustment range of the second hinge component is 30° to 150°.
[0049] In some possible embodiments of this utility model, such as Figure 4 as well as Figure 6 As shown, the first hinge plate 212 and the second hinge plate 222 are respectively provided with a first hinge hole 212c and a second hinge hole 222c. The steering component 2 also includes a pin 23, which passes through the first hinge hole 212c and the second hinge hole 222c, so that the first hinge component 21 and the second hinge component 22 are hinged to each other. The advantage is that by providing hinge holes on the first hinge plate 212 and the second hinge plate 222 and connecting them with the pin 23, the first hinge component 21 and the second hinge component 22 are hinged to each other. This connection method is simple, reliable, easy to install and disassemble, and can ensure the flexible rotation of the steering component 2, ensuring the normal adjustment function of the multi-head adjustable support node, thus improving the convenience and efficiency of construction.
[0050] To solve the above problems, such as Figure 8 As shown, this utility model also provides a multi-node support structure for foundation pits, comprising:
[0051] Multiple of the aforementioned multi-head adjustable support nodes;
[0052] Multiple support rods 4, the fixed rod 1 is fixed to one of the support rods 4, and is connected to other support rods 4 through the other end of the connecting rod 3.
[0053] To better illustrate the multi-node support structure for foundation pits of this invention, the following specific application will be used as an example: This multi-node support structure for foundation pits combines multiple multi-head adjustable support nodes with multiple support rods 4 to form a multi-node support structure for foundation pits. This structure fully utilizes the advantages of multi-head adjustable support nodes, flexibly adjusting the position and angle of each support rod 4 according to the shape and size of different foundation pits, thus achieving effective support for the foundation pit. The coordinated work of multiple support nodes improves the overall stability and reliability of foundation pit support, meets the support requirements of complex foundation pit projects, and ensures the safety of foundation pit construction. It can be seen that the multi-head adjustable support nodes and the multi-node support structure for foundation pits of this invention achieve multi-angle connections of multiple support rods 4 through one or more steering components 2, enriching the application scenarios and solving the problem in the prior art where fixed-angle foundation pit support nodes cannot adapt to irregularly shaped foundation pits, thereby increasing construction difficulty and affecting the support effect.
[0054] In some possible embodiments of this utility model, such as Figure 8 As shown, the multi-node support structure for the foundation pit also includes a waler 5, with one end of the support rod 4 connected to the waler 5. Its beneficial effect is that by adding the waler 5 and connecting it to one end of the support rod 4, the waler 5 enhances the overall integrity of the foundation pit support, connecting multiple support rods 4 into a whole, and improving the rigidity and stability of the support structure. When the foundation pit is subjected to external forces such as soil pressure, the waler 5 can evenly distribute the load, preventing excessive local stress and further ensuring the safety and reliability of the foundation pit support. It also facilitates connection and collaborative work with other foundation pit support structures, forming a more complete foundation pit support system.
[0055] As described above, the multi-head adjustable support node and the multi-node support structure for foundation pits of this utility model have the following beneficial effects:
[0056] 1. Flexible connection and adjustment:
[0057] Steering component 2 design: Through the cooperation of the fixed rod 1 and one or more steering components 2, and the connecting rod 3, multiple support rods 4 can be flexibly connected. Adjusting the steering component 2 drives the other support rods 4 to rotate, adapting to various support scenarios with different angles, especially suitable for the support of irregularly shaped foundation pits.
[0058] Angle adjustment range: The chamfering treatment of the first hinge plate 212 and the second hinge plate 222 avoids interference during rotation and achieves a larger rotation angle of 30°~150°, enhancing the adaptability of the support node.
[0059] 2. Structural strength and stability:
[0060] Reinforcing plate design: Both the first hinge component 21 and the second hinge component 22 are equipped with reinforcing plates, which improves the overall strength and stability, effectively prevents deformation, and ensures the normal operation of the steering component 2.
[0061] Hinge accuracy: The spacing of the second hinge member 22 is adapted to the first hinge member 21, which ensures the accuracy and stability of the hinge and ensures a reliable connection between the support rods 4.
[0062] 3. Easy installation and disassembly:
[0063] Axis pin 23 connection: The first hinge component 21 and the second hinge component 22 are hinged to each other by passing through the hinge hole via the axis pin 23. The connection method is simple and reliable, and is easy to install and disassemble.
[0064] 4. Cost optimization:
[0065] Reduce the amount of support rod 4: While ensuring the effectiveness of foundation pit support, the amount of support rod 4 is reduced, which effectively reduces support costs and improves the economy of foundation pit support project.
[0066] 5. Overall support effect:
[0067] Multi-node support structure for foundation pit: Multiple multi-head adjustable support nodes are combined with multiple support rods 4 to form a multi-node support structure for foundation pit, which improves the overall stability and reliability of foundation pit support.
[0068] Waler 5 reinforcement: The support rod 4 is connected to the waler 5 to enhance the overall integrity of the foundation pit support, evenly distribute the load, and improve the rigidity and stability of the support structure.
[0069] This utility model's multi-head adjustable support node, through its innovative design of the steering component 2 and connecting rod 3, achieves flexible connection and multi-angle adjustment of multiple support rods 4, making it particularly suitable for supporting irregularly shaped foundation pits. Its core advantage lies in the improved strength and stability of the support node through the hinged structure and reinforcing plate design, ensuring reliability and adaptability in complex foundation pit environments. The convenient installation and disassembly methods improve construction efficiency, reduce the number of support rods 4, and lower support costs. The application of the multi-node support structure for foundation pits further enhances the overall stability and reliability of the support, solving the problem that fixed-angle support nodes in existing technologies cannot adapt to irregularly shaped foundation pits, and providing an efficient and economical solution for foundation pit support engineering.
[0070] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.
[0071] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A multi-head adjustable support node for connecting multiple support rods (4) installed in a foundation pit, characterized in that, include: The fixed rod (1) and one or more steering components (2) include a first hinge member (21) and a second hinge member (22), one end of the first hinge member (21) is hinged to one end of the second hinge member (22), and the other end of the first hinge member (21) is fixed to the fixed member; One or more connecting rods (3), one end of the connecting rod (3) is fixed to the other end of the second hinge member (22), the fixing rod (1) is fixed to a support rod (4), and is connected to other support rods (4) through the other end of the connecting rod (3). The steering member (2) is adjusted to drive other support rods (4) to rotate, so as to adapt to support scenarios with multiple angles.
2. The multi-head adjustable support node of claim 1, wherein: The first hinge member (21) includes a first fixing plate (211) and two first hinge plates (212) that are vertically fixed to the first fixing plate (211) and arranged parallel to each other.
3. The multi-head adjustable support node of claim 2, wherein: The first hinge member (21) further includes a first reinforcing plate (213) that is vertically fixed to the first fixing plate (211), and the first reinforcing plate (213) is perpendicular to the two first hinge plates (212).
4. The multi-head adjustable support node of claim 2, wherein: The first hinge plate (212) includes a first fixing part (212a) for fixed connection with the first fixing plate (211) and a first connecting part (212b) integrally formed on the top of the first fixing part (212a). The two sides of the first connecting part (212b) are chamfered to avoid interference between the first hinge plate (212) and the first fixing plate (211) during rotation, so as to satisfy the rotation angle of the first hinge plate (212).
5. The multi-head adjustable support node of claim 2, wherein: The second hinge member (22) includes a second fixed plate (221) and two second hinge plates (222) vertically fixed on the second fixed plate (221). The distance between the two second hinge plates (222) is adapted to the distance between the two first hinge plates (212).
6. The multi-head adjustable support node of claim 5, wherein: The second hinge member (22) further includes a second reinforcing plate (223) that is vertically fixed to the second fixing plate (221), and the second reinforcing plate (223) is perpendicular to the two second hinge plates (222).
7. The multi-head adjustable support node of claim 5, wherein: The second hinge plate (222) includes a second fixing part (222a) for fixed connection with the second fixing plate (221) and a second connecting part (222b) integrally formed on the top of the second fixing part (222a). The two sides of the second connecting part (222b) are chamfered to avoid interference between the second hinge plate (222) and the second fixing plate (221) during rotation, so as to satisfy the rotation angle of the second hinge plate (222).
8. The multi-head adjustable support node of claim 4, wherein: The first hinge plate (212) and the second hinge plate (222) are respectively provided with a first hinge hole (212c) and a second hinge hole (222c). The steering component (2) also includes a shaft pin (23), which passes through the first hinge hole (212c) and the second hinge hole (222c) so that the first hinge component (21) and the second hinge component (22) are hinged to each other.
9. A multi-node support structure for an excavation, characterised in that, include: The multi-head adjustable support node as described in any one of claims 1 to 8; Multiple support rods (4), the fixed rod (1) is fixed to one of the support rods (4) and connected to the other support rods (4) through the other end of the connecting rod (3).
10. The multi-node support structure for an excavation pit according to claim 9, wherein: The multi-node support structure of the foundation pit also includes a waler (5), and one end of the support rod (4) is connected to the waler (5).