Folding triangular bracket and foundation pit support structure

Abstract

The utility model provides a kind of folding triangular bracket and foundation pit support structure, solve the problem that traditional triangular bracket in prior art occupies large space, adjustment flexibility is poor and is inconvenient to assemble;Among them folding triangular bracket includes: fixed rod and the support rod of one end with the hinged end of fixed rod, first positioning hole and second positioning hole are set on fixed rod;Fixed part, sliding part and fastener, sliding part is slidably arranged on fixed rod, fixed part is fixed in the middle of support rod, sliding part is provided with fixed hole compatible with first positioning hole and second positioning hole, fastener passes through fixed hole and first positioning hole or second positioning hole, sliding part is locked in the corresponding first position or second position of fixed rod;Stress rod, one end of stress rod is hinged with fixed part, the other end is hinged with sliding part, when sliding part slides on fixed rod, support rod is driven to rotate along the hinged end of fixed rod by stress rod.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, and in particular to a folding triangular bracket and a foundation pit support structure. Background Technology

[0002] In modern building construction and industrial applications, triangular brackets are a common support structure widely used in fields such as foundation pit support and aerial work platforms. However, existing triangular brackets have some shortcomings in design and use, which limit their application scenarios and efficiency.

[0003] Large space occupation: Traditional triangular brackets are usually fixed structures that cannot be folded when not in use, taking up a lot of storage and transportation space. This increases logistics costs and on-site management difficulties for construction scenarios that require frequent handling and installation.

[0004] Poor adjustment flexibility: After installation, the support angle and position of existing triangular brackets are often difficult to adjust. This may result in the brackets not being able to quickly adapt to new working conditions when facing different construction environments and needs, requiring additional time and manpower for reinstallation or adjustment.

[0005] Complex structure and inconvenient installation: Traditional triangular brackets are typically assembled temporarily on-site by welding. This not only increases the difficulty of installation but may also lead to low installation efficiency and affect the construction schedule. 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 foldable triangular bracket and a foundation pit support structure, so as to solve the problems of large space occupation, poor adjustment flexibility and inconvenient assembly of the traditional triangular bracket in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model provides a folding triangular bracket, comprising:

[0008] A fixed rod and a support rod with one end hinged to the other end of the fixed rod, wherein the fixed rod has a first positioning hole and a second positioning hole;

[0009] The device includes a fixing component, a sliding component, and a fastener. The sliding component is slidably disposed on the fixing rod, and the fixing component is fixed to the middle part of the support rod. The sliding component is provided with a fixing hole that matches the first positioning hole and the second positioning hole. The fastener passes through the fixing hole and the first positioning hole or the second positioning hole to lock the sliding component at the corresponding first position or second position on the fixing rod.

[0010] A force-bearing rod, one end of which is hinged to the fixed member and the other end of which is hinged to the sliding member. When the sliding member slides on the fixed rod, the force-bearing rod drives the support rod to rotate along the hinged end with the fixed rod.

[0011] In the first position, the support rod, driven by the force-bearing rod, rotates along the hinge end with the fixed rod to a position perpendicular to the fixed rod, at which point the folding triangular bracket is in the working posture; in the second position, the support rod rotates to the storage posture.

[0012] As a preferred method, the fixing rod is made of channel steel, which includes a first web and two first flange plates. One end of each of the two first flange plates is perpendicularly connected to both ends of the first web. The first positioning hole and the second positioning hole are formed on the first flange plates. The advantage of using channel steel as the fixing rod is that it not only provides good structural strength, but also provides suitable installation positions for the first positioning hole and the second positioning hole through the design of the first web and the first flange plates, thereby enhancing the stability and durability of the fixing rod.

[0013] As a preferred embodiment, the first positioning hole and the second positioning hole comprise two sets symmetrically arranged on the two first flange plates; the beneficial effect is that the symmetrical arrangement of the first positioning hole and the second positioning hole on the two first flange plates improves the symmetry and stability of the bracket, ensures uniform force distribution during locking, and enhances the load-bearing capacity and reliability of the bracket.

[0014] As a preferred approach, the support rod is an I-beam, which includes a second web and two second flanges. The two ends of the second web are perpendicularly connected to the middle of the two second flanges, respectively. The advantage of using an I-beam as the support rod, combined with the structure of the second web and the second flanges, is that it provides high-strength and lightweight support, while also providing a good connection foundation for the hinge with the fixed rod, ensuring the stability of the support rod during rotation.

[0015] As a preferred method, a second mounting hole is provided on the second web plate at one end of the support rod, and a first mounting hole adapted to the second mounting hole is provided on the two first flange plates at one end of the fixed rod. The support rod and the fixed rod are hinged by a pin passing through the first mounting hole and the two second mounting holes. The advantage is that the reliable hinge of the support rod and the fixed rod is achieved through the cooperation of the first mounting hole, the second mounting hole and the pin, ensuring that the support rod can rotate smoothly, while facilitating disassembly and installation and improving the maintenance convenience of the bracket.

[0016] As a better approach, the folding triangular bracket also includes a fastening nut, which is turned at both ends of the pin to prevent the pin from loosening. The advantage of this is that the fastening nut effectively prevents the pin from loosening, improves the safety and reliability of the bracket during use, and avoids the risk of the support rod falling off due to the loosening of the pin.

[0017] As a preferred embodiment, the sliding member includes a first connecting plate and sliding portions disposed at both ends of the first connecting plate. The sliding portions are provided with grooves that are adapted to the other ends of the first flange plates. The other ends of the two first flange plates are respectively inserted into the grooves, allowing the sliding member to slide along the fixed rod. Its advantages are that the design of the sliding member, through the cooperation between the grooves and the first flange plates, enables the sliding member to slide smoothly on the fixed rod. At the same time, the structure is simple, easy to manufacture and assemble, and improves the overall performance of the bracket.

[0018] As a preferred method, the fixing hole is formed on the sliding part; its advantage is that the fixing hole is formed on the sliding part and precisely matches the positioning hole on the first flange plate, ensuring the accuracy of the position of the sliding part when locked, and improving the stability and reliability of the bracket.

[0019] As a preferred embodiment, the fastener includes a second connecting plate and fixing portions disposed at both ends of the second connecting plate. The fixing portions are provided with slots adapted to the ends of the second flange plate. Both ends of the second flange plate are respectively engaged in the two slots, thereby fixing the fastener to the support rod. Its advantages are that the fastener, through the cooperation of the slots with the second flange plate of the support rod, achieves a firm connection between the fastener and the support rod. The structure is reasonably designed, easy to install, and enhances the connection strength between the support rod and the load-bearing rod.

[0020] As a preferred method, limiting holes are provided at corresponding positions of the fixing part, the second connecting plate, and the second flange plate. The fixing part is fixed to the support rod by using a locking member passing through the limiting holes of the fixing part and the second flange plate. The beneficial effect is that the connection reliability between the fixing part and the support rod is further enhanced by the cooperation of the limiting holes and the locking member, preventing the fixing part from loosening during use and ensuring the long-term stable operation of the bracket.

[0021] As a better approach, the ends of the support rod are rounded to prevent interference between the support rod and the fixed rod during rotation. The advantage of this is that the rounded ends of the support rod prevent interference with the fixed rod during rotation, ensuring that the support rod can be folded and unfolded smoothly, thus extending the service life of the bracket.

[0022] As a preferred method, the fixing rod is also provided with a limiting protrusion, and the support rod is provided with a limiting groove corresponding to the limiting protrusion. When the sliding member slides from the first position to the second position, the limiting protrusion engages with the limiting groove to facilitate the positioning of the fixing hole and the second positioning hole. The beneficial effect is that the design of the limiting protrusion and the limiting groove enables the sliding member to be accurately positioned when it slides to the second position, which facilitates the alignment of the fixing hole and the second positioning hole and improves the convenience and accuracy of the bracket folding operation.

[0023] To address the aforementioned problems, this utility model also provides a foundation pit support structure, comprising:

[0024] Several of the above-mentioned folding triangular brackets;

[0025] The support wall and a steel support with one end perpendicularly connected to the support wall, the fixing rod of the folding triangular bracket is fixed to the support wall, and the sliding member is locked in the corresponding first position of the fixing rod, and the steel support is supported by a support rod perpendicular to the fixing rod.

[0026] As described above, the foldable triangular bracket and foundation pit support structure of this utility model have the following beneficial effects: The foldable triangular bracket of this utility model achieves convenient folding and unfolding functions through the cooperation of a fixed rod, support rod, sliding component, force-bearing rod, and fasteners. In the working posture, the support rod is perpendicular to the fixed rod, providing stable support; in the storage posture, the support rod can be folded close to the fixed rod, reducing space occupation and facilitating transportation and storage. The design of the sliding component and fasteners allows for flexible adjustment of the bracket's position and reliable locking, meeting the usage needs of different scenarios; at the same time, it avoids on-site welding operations, greatly improving efficiency.

[0027] This invention applies a foldable triangular bracket to a foundation pit support structure. Multiple brackets are fixed to the retaining wall via fixing rods, and the sliding components are locked in their working position, providing a stable support point for the steel support. This structure not only improves the stability and safety of the foundation pit support but also facilitates the installation and disassembly of the brackets, making it suitable for various foundation pit engineering scenarios.

[0028] In summary, the foldable triangular bracket and pit support structure of this utility model can switch between working and storage positions by folding, adapting to the needs of different scenarios, reducing space occupation and improving assembly efficiency, and solving the problems of large space occupation, poor adjustment flexibility and inconvenient assembly of traditional triangular brackets in the prior art. Attached Figure Description

[0029] Figure 1 The diagram shows the folding triangular bracket of this utility model in its working posture.

[0030] Figure 2 Displayed as Figure 1 A partial view along the AA direction;

[0031] Figure 3 Displayed as Figure 1 A partial view in the middle BB direction;

[0032] Figure 4 This diagram shows the folding triangular bracket of this utility model in its stowed position.

[0033] Component designation explanation

[0034] 1. Fixed rod

[0035] 11 First web plate

[0036] 12 First flange plate

[0037] 121 First positioning hole

[0038] 122 Second positioning hole

[0039] 123 Third positioning hole

[0040] 124 Fourth positioning hole

[0041] 125 First mounting hole

[0042] 13 Limiting protrusions

[0043] 2 Support rods

[0044] 21 Second web plate

[0045] 211 Second mounting hole

[0046] 22 Second flange

[0047] 221 Limiting Groove

[0048] 3 Sliding parts

[0049] 31 First connecting plate

[0050] 32 Sliding part

[0051] 321 Slide

[0052] 322 Fixing Hole

[0053] 4. Fasteners

[0054] 41 Second connecting plate

[0055] 42 Fixing part

[0056] 421 Card Slot

[0057] 43 Limiting holes

[0058] 5. Load-bearing rod

[0059] 6-axis pin

[0060] 7. Tighten the nuts

[0061] 8 Fasteners

[0062] 9 Locking components Detailed Implementation

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] like Figures 1 to 4 As shown, this utility model provides a folding triangular bracket, comprising:

[0068] The fixed rod 1 and the support rod 2, one end of which is hinged to the other end of the fixed rod 1, are provided with a first positioning hole 121 and a second positioning hole 122 on the fixed rod 1;

[0069] The device includes a fixing member 4, a sliding member 3, and a fastener 8. The sliding member 3 is slidably disposed on the fixing rod 1, and the fixing member 4 is fixed to the middle part of the support rod 2. The sliding member 3 is provided with a fixing hole 322 that is adapted to the first positioning hole 121 and the second positioning hole 122. The fastener 8 passes through the fixing hole 322 and the first positioning hole 121 or the second positioning hole 122 to lock the sliding member 3 at the corresponding first position or second position of the fixing rod 1.

[0070] The force-bearing rod 5 has one end hinged to the fixing member 4 and the other end hinged to the sliding member 3. When the sliding member 3 slides on the fixing rod 1, the force-bearing rod 5 drives the support rod 2 to rotate along the hinged end with the fixing rod 1.

[0071] In the first position, the support rod 2, driven by the force rod 5, rotates along the hinge end with the fixed rod 1 to a position perpendicular to the fixed rod 1, at which time the folding triangular bracket is in the working posture; in the second position, the support rod 2 rotates to the storage posture.

[0072] To better illustrate the folding triangular bracket of this utility model, the following specific application will be used as an example: The folding triangular bracket of this utility model achieves convenient folding and unfolding functions through the cooperation of the fixing rod 1, support rod 2, sliding member 3, force-bearing rod 5, and fastener 8. In its working posture, as... Figure 1As shown, support rod 2 is perpendicular to fixed rod 1, providing stable support; in the folded position, as... Figure 4 As shown, the support rod 2 can be folded close to the fixed rod 1, reducing space occupation and facilitating transportation and storage. The design of the sliding part 3 and the fastener 8 allows for flexible adjustment of the bracket position and reliable locking, meeting the needs of different scenarios; at the same time, it avoids on-site welding operations, greatly improving efficiency.

[0073] In some possible embodiments of this utility model, such as Figure 1 , Figure 2 As shown, the fixing rod 1 is made of channel steel, which includes a first web plate 11 and two first flange plates 12. One end of each of the two first flange plates 12 is perpendicularly connected to both ends of the first web plate 11. The first positioning hole 121 and the second positioning hole 122 are formed on the first flange plate 12. The beneficial effect is that using channel steel as the fixing rod 1 not only provides good structural strength, but also provides suitable installation positions for the first positioning hole 121 and the second positioning hole 122 through the design of the first web plate 11 and the first flange plate 12, thereby enhancing the stability and durability of the fixing rod 1.

[0074] In some possible embodiments of this utility model, such as Figure 1 As shown, the first positioning hole 121 and the second positioning hole 122 include two sets symmetrically arranged on the two first flange plates 12; the beneficial effect is that the first positioning hole 121 and the second positioning hole 122 are symmetrically arranged on the two first flange plates 12, which improves the symmetry and stability of the bracket, ensures uniform force during locking, and enhances the load-bearing capacity and reliability of the bracket.

[0075] In some possible embodiments of this utility model, such as Figure 1 , Figure 3 As shown, the support rod 2 is an I-beam, which includes a second web 21 and two second flange plates 22. The two ends of the second web 21 are perpendicularly connected to the middle of the two second flange plates 22, respectively. Its advantages are that by using an I-beam as the support rod 2, combined with the structure of the second web 21 and the second flange plates 22, it provides high-strength and lightweight support, while providing a good connection foundation for the hinge with the fixed rod 1, ensuring the stability of the support rod 2 during rotation.

[0076] In some possible embodiments of this utility model, such as Figure 1 , Figure 3As shown, a second mounting hole 211 is provided on the second web plate 21 at one end of the support rod 2, and a first mounting hole 125 adapted to the second mounting hole 211 is provided on the two first flange plates 12 at one end of the fixed rod 1. The support rod 2 and the fixed rod 1 are hinged by the axle pin 6 passing through the first mounting hole 125 and the two second mounting holes 211. The beneficial effect is that the reliable hinge connection between the support rod 2 and the fixed rod 1 is realized through the cooperation of the first mounting hole 125 and the second mounting hole 211 with the axle pin 6, ensuring that the support rod 2 can rotate smoothly, while facilitating disassembly and installation, and improving the maintenance convenience of the bracket.

[0077] In some possible embodiments of this utility model, such as Figure 1 , Figure 3 As shown, the folding triangular bracket also includes a fastening nut 7, which is turned at both ends of the shaft pin 6 to prevent the shaft pin 6 from loosening. Its beneficial effect is that the fastening nut 7 effectively prevents the shaft pin 6 from loosening, improves the safety and reliability of the bracket during use, and avoids the risk of the support rod 2 falling off due to the loosening of the shaft pin 6.

[0078] In some possible embodiments of this utility model, such as Figure 1 , Figure 2 As shown, the sliding member 3 includes a first connecting plate 31 and sliding portions 32 disposed at both ends of the first connecting plate 31. The sliding portion 32 is provided with a groove 321 adapted to the other end of the first flange plate 12. The other ends of the two first flange plates 12 are respectively inserted into the groove 321, so that the sliding member 3 slides along the fixed rod 1. Its beneficial effect is that the design of the sliding member 3, through the cooperation of the groove 321 and the first flange plate 12, enables the sliding member 3 to slide smoothly on the fixed rod 1. At the same time, the structure is simple, easy to manufacture and assemble, and improves the overall performance of the bracket.

[0079] In some possible embodiments of this utility model, such as Figure 1 , Figure 2 As shown, the fixing hole 322 is formed on the sliding part 32; its beneficial effect is that the fixing hole 322 is formed on the sliding part 32 and precisely matches the positioning hole on the first flange plate 12, ensuring the position accuracy of the sliding part 3 when locked, and improving the stability and reliability of the bracket.

[0080] In some possible embodiments of this utility model, such as Figure 1 , Figure 3As shown, the fixing member 4 includes a second connecting plate 41 and fixing parts 42 disposed at both ends of the second connecting plate 41. The fixing parts 42 are provided with slots 421 adapted to the ends of the second flange plate 22. The two ends of the second flange plate 22 are respectively locked in the two slots 421, so that the fixing member 4 is fixed to the support rod 2. Its beneficial effect is that the fixing member 4 cooperates with the second flange plate 22 of the support rod 2 through the slots 421, realizing a firm connection between the fixing member 4 and the support rod 2. The structure is reasonably designed, easy to install, and enhances the connection strength between the support rod 2 and the load-bearing rod 5.

[0081] In some possible embodiments of this utility model, such as Figure 1 , Figure 3 As shown, limiting holes 43 are provided at corresponding positions of the fixing part 42, the second connecting plate 41, and the second flange plate 22. The fixing part 4 and the support rod 2 are fixed by the locking member 9 passing through the limiting holes 43 of the fixing part 42 and the second flange plate 22. The beneficial effect is that the connection reliability between the fixing part 4 and the support rod 2 is further enhanced by the cooperation of the limiting holes 43 and the locking member 9, preventing the fixing part 4 from loosening during use and ensuring the long-term stable operation of the bracket.

[0082] In some possible embodiments of this utility model, such as Figure 1 as well as Figure 4 As shown, the end of the support rod 2 is rounded to avoid interference with the fixed rod 1 during the rotation of the support rod 2. The beneficial effect is that the rounded end of the support rod 2 avoids interference with the fixed rod 1 during the rotation, ensuring that the support rod 2 can be folded and unfolded smoothly, thus extending the service life of the bracket.

[0083] In some possible embodiments of this utility model, such as Figure 1 , Figure 4 As shown, the fixing rod 1 is also provided with a limiting protrusion 13, and the support rod 2 is provided with a limiting groove 221 corresponding to the limiting protrusion 13. When the sliding member 3 slides from the first position to the second position, the limiting protrusion 13 is engaged with the limiting groove 221 to facilitate the positioning of the fixing hole 322 and the second positioning hole 122. Its beneficial effect is that the design of the limiting protrusion 13 and the limiting groove 221 enables the sliding member 3 to be accurately positioned when it slides to the second position, which facilitates the alignment of the fixing hole 322 and the second positioning hole 122, and improves the convenience and accuracy of the bracket folding operation. In this embodiment, the limiting protrusion 13 includes two, which are symmetrically fixed to the first flange plate 12 on the outside, and the limiting groove 221 is provided on the second flange plate 22.

[0084] In some possible embodiments of this utility model, such as Figure 1 , Figure 4 As shown, the fixing rod 1 is also provided with a third positioning hole 123 and a fourth positioning hole 124. The third and fourth positioning holes 124 correspond to different folding angles between the support rod 2 and the fixing rod 1, thereby adapting to different usage scenarios.

[0085] To address the aforementioned problems, this utility model also provides a foundation pit support structure, comprising:

[0086] Several of the above-mentioned folding triangular brackets;

[0087] The support wall and a steel support with one end perpendicularly connected to the support wall, the fixing rod 1 of the folding triangular bracket is fixed to the support wall, and the sliding member 3 is locked in the corresponding first position of the fixing rod 1, and the steel support is supported by the support rod 2 perpendicular to the fixing rod 1.

[0088] To better illustrate the foundation pit support structure of this utility model, the following specific application will be used as an example: This utility model applies a foldable triangular bracket to the foundation pit support structure. Multiple bracket fixing rods 1 are fixed to the supporting wall, and the sliding component 3 is locked in the working position, providing a stable support point for the steel support. This structure not only improves the stability and safety of the foundation pit support but also facilitates the installation and disassembly of the bracket, making it suitable for various foundation pit engineering scenarios. It can be seen that the foldable triangular bracket and foundation pit support structure of this utility model, by folding and switching between the working position and the storage position, adapt to the needs of different scenarios, reduce space occupation, and improve assembly efficiency, solving the problems of large space occupation, poor adjustment flexibility, and inconvenient assembly of traditional triangular brackets in the prior art.

[0089] As described above, the folding triangular bracket and foundation pit support structure of this utility model have the following beneficial effects:

[0090] 1. Easy to fold and unfold:

[0091] Hinged design: The support rod and the fixed rod are connected by a hinge, and the cooperation of the sliding parts and fasteners allows the bracket to flexibly switch between the working and storage positions. In the working position, the support rod is perpendicular to the fixed rod, providing stable support; in the storage position, the support rod can be folded close to the fixed rod, reducing space occupation and facilitating transportation and storage.

[0092] Shaft pin and fastening nut: The cooperation of shaft pin and fastening nut realizes reliable hinge connection between support rod and fixed rod, ensuring that support rod can rotate smoothly, while facilitating disassembly and installation, and improving the maintenance convenience of bracket.

[0093] 2. Structural strength and stability:

[0094] Channel steel and I-beams: The fixing rods are made of channel steel and the support rods are made of I-beams. Combined with the structure of the web and flanges, it provides high-strength and lightweight support, while enhancing the stability and durability of the structure.

[0095] Limiting protrusions and grooves: The design of limiting protrusions and limiting grooves ensures that the slider can be accurately positioned when it slides to the second position, which facilitates the alignment of the fixing hole and the second positioning hole, and improves the convenience and accuracy of the bracket folding operation.

[0096] 3. Diverse positioning and adaptation:

[0097] Multiple positioning holes: The fixing rod is equipped with multiple positioning holes to accommodate different folding angles between the support rod and the fixing rod, meeting the needs of different usage scenarios.

[0098] Symmetrical design: The first and second positioning holes are symmetrically arranged, which improves the symmetry and stability of the bracket, ensures uniform force distribution when locking, and enhances the load-bearing capacity and reliability of the bracket.

[0099] 4. Easy installation and maintenance:

[0100] Sliding component and fixed component: The sliding component cooperates with the fixed rod through the sliding groove, so that the sliding component can slide smoothly on the fixed rod. The structure is simple and easy to manufacture and assemble.

[0101] Slot connection: The fastener engages with the flange plate of the support rod through a slot, achieving a firm connection between the fastener and the support rod. The structure is reasonably designed, easy to install, and enhances the connection strength between the support rod and the load-bearing rod.

[0102] 5. Wide range of applications:

[0103] Foundation Pit Support Structure: Foldable triangular brackets are applied to the foundation pit support structure. Multiple brackets are fixed to the retaining wall via fixing rods, and the sliding components are locked in the working position, providing stable support points for the steel supports. This structure improves the stability and safety of the foundation pit support, facilitates the installation and dismantling of the brackets, and is suitable for various foundation pit engineering scenarios.

[0104] This utility model's folding triangular bracket achieves convenient folding and unfolding functions through innovative designs of fixing rods, support rods, sliding parts, force-bearing rods, and fasteners. Its core advantage lies in its optimized structure, ensuring stable support in the working posture and reducing space occupation in the folded posture, while simultaneously improving installation and maintenance convenience. The use of channel steel and I-beams enhances structural strength and stability, while multiple positioning holes and symmetrical design improve adaptability and reliability. Its application in foundation pit support structures further demonstrates its wide applicability and practicality. Overall, this utility model solves the problems of large space occupation, poor adjustment flexibility, and inconvenient assembly of traditional triangular brackets in the prior art, providing a highly efficient, stable, and user-friendly folding triangular bracket solution.

[0105] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0106] 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 folding triangular bracket, characterized in that, include: A fixing rod (1) and a support rod (2) with one end hinged to one end of the fixing rod (1), wherein the fixing rod (1) is provided with a first positioning hole (121) and a second positioning hole (122); The fastener (8) consists of a fixing member (4), a sliding member (3), and a fastener (8). The sliding member (3) is slidably disposed on the fixing rod (1). The fixing member (4) is fixed to the middle part of the support rod (2). The sliding member (3) is provided with a fixing hole (322) that is adapted to the first positioning hole (121) and the second positioning hole (122). The fastener (8) passes through the fixing hole (322) and the first positioning hole (121) or the second positioning hole (122) to lock the sliding member (3) at the corresponding first position or second position of the fixing rod (1). Force rod (5), one end of the force rod (5) is hinged to the fixed member (4), and the other end is hinged to the sliding member (3). When the sliding member (3) slides on the fixed rod (1), the force rod (5) drives the support rod (2) to rotate along the hinge end with the fixed rod (1). In the first position, the support rod (2) rotates along the hinge end of the fixed rod (1) to a position perpendicular to the fixed rod (1) under the drive of the force rod (5), at which time the folding triangular bracket is in the working posture; in the second position, the support rod (2) rotates to the storage posture.

2. The folding triangular bracket according to claim 1, characterized in that: The fixing rod (1) is made of channel steel, which includes a first web plate (11) and two first flange plates (12). One end of each of the two first flange plates (12) is perpendicularly connected to both ends of the first web plate (11). The first positioning hole (121) and the second positioning hole (122) are opened on the first flange plate (12).

3. The folding triangular bracket according to claim 2, characterized in that: The support rod (2) is an I-beam, which includes a second web (21) and two second flange plates (22). The two ends of the second web (21) are perpendicularly connected to the middle of the two second flange plates (22).

4. The folding triangular bracket according to claim 3, characterized in that: The second web plate (21) at one end of the support rod (2) is provided with a second mounting hole (211), and the two first flange plates (12) at one end of the fixing rod (1) are provided with first mounting holes (125) adapted to the second mounting hole (211). The support rod (2) and the fixing rod (1) are hinged by passing a pin (6) through the first mounting hole (125) and the two second mounting holes (211).

5. The folding triangular bracket according to claim 4, characterized in that: The sliding member (3) includes a first connecting plate (31) and sliding parts (32) disposed at both ends of the first connecting plate (31). The sliding parts (32) are provided with sliding grooves (321) adapted to the other end of the first flange plate (12). The other ends of the two first flange plates (12) are respectively inserted into the sliding grooves (321) so that the sliding member (3) slides along the fixed rod (1).

6. The folding triangular bracket according to claim 5, characterized in that: The fastener (4) includes a second connecting plate (41) and a fixing part (42) disposed at both ends of the second connecting plate (41). The fixing part (42) is provided with a slot (421) adapted to the end of the second flange plate (22). Both ends of the second flange plate (22) are respectively locked in the two slots (421) so that the fastener (4) is fixed to the support rod (2).

7. The folding triangular bracket according to claim 6, characterized in that: Limiting holes (43) are provided at corresponding positions of the fixing part (42), the second connecting plate (41) and the second flange plate (22). The fixing member (4) is fixed to the support rod (2) by passing the locking member (9) through the limiting holes (43) of the fixing part (42) and the second flange plate (22).

8. The folding triangular bracket according to claim 1, characterized in that: The end of the support rod (2) is rounded to prevent interference between the support rod (2) and the fixed rod (1) during rotation.

9. The folding triangular bracket according to claim 1, characterized in that: The fixing rod (1) is also provided with a limiting protrusion (13), and the support rod (2) is provided with a limiting groove (221) corresponding to the limiting protrusion (13). When the sliding member (3) slides from the first position to the second position, the limiting protrusion (13) is engaged in the limiting groove (221) to facilitate the positioning of the fixing hole (322) and the second positioning hole (122).

10. A foundation pit support structure, characterized in that, include: The folding triangular bracket as described in any one of claims 1 to 9; The support wall and a steel support with one end perpendicularly connected to the support wall, the fixing rod (1) of the folding triangular bracket is fixed to the support wall, and the sliding member (3) is locked in the corresponding first position of the fixing rod (1), and the steel support is supported by the support rod (2) perpendicular to the fixing rod (1).

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