A quick-installation and disassembly prefabricated trench support device

Abstract

A quick-assembly and disassembly modular trench support device, belonging to the field of civil engineering construction technology, includes two parallel baffles. At least two horizontal bars are positioned between the two baffles, located at the upper ends of the baffles. At least two vertically arranged support rods are fixedly connected to the opposite surfaces of the two baffles. Each support rod has a hollow interior forming a support groove, within which a vertical support that can move along the length of the groove is provided. The bottom of each vertical support is conical. In this invention, the length of the baffles can be adjusted according to different trench lengths to meet various usage requirements. Simultaneously, the device effectively reduces the space occupied in the lower part of the trench, facilitating construction operations and significantly improving the flexibility and efficiency of construction operations, while reducing construction difficulties and safety hazards caused by limited space.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering construction technology, and relates to the field of urban sewage pipe network trench support technology, and in particular to a quick-installation and dismantling prefabricated trench support device. Background Technology

[0002] During the construction of urban sewage pipe network trenches, it is usually necessary to support the trenches to ensure construction safety and the stability of the trench walls.

[0003] Traditional trench support methods often suffer from low construction efficiency, inconvenient installation and dismantling, and poor scalability. Some on-site fabricated support structures require significant manpower and time for installation and dismantling, and are difficult to adjust flexibly according to the actual length of the trench. Furthermore, traditional support methods have limitations in terms of support effectiveness, failing to adequately adapt to different geological conditions and trench depths. Therefore, developing a trench baffle support tool that can be quickly installed and dismantled, flexibly assembled, and provides effective support is of significant practical importance. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a quick-installation and disassembly modular trench support device to solve the technical problems of inconvenient installation and disassembly, poor scalability and poor support effect of trench support tools in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a quick-installation and disassembly prefabricated trench support device, comprising two parallel baffles, with at least two horizontal bars between the two baffles, the horizontal bars being located at the upper end of the baffles, and at least two vertically arranged support rods fixedly connected to the opposite surfaces of the two baffles, the support rods being hollow inside to form support grooves, the support grooves being provided with vertical supports that can move along the length direction of the support grooves, and the bottom of the vertical supports being conical.

[0006] Preferably, in any of the above embodiments, the crossbar is positioned at a distance of 0.3 to 0.5 m from the top of the baffle.

[0007] Preferably, in any of the above embodiments, each baffle has a horizontally arranged stiffening plate in the middle.

[0008] In any of the above embodiments, it is preferred that a plurality of connecting seats are symmetrically arranged on the opposite surfaces of the two baffles, the connecting seats are welded to the baffles, and the two ends of the crossbar are connected to the connecting seats by bolts.

[0009] In any of the above embodiments, it is preferred that each baffle is welded to both sides, and the connecting plates are provided with a plurality of bolt holes evenly distributed along the length of the connecting plates.

[0010] In any of the above embodiments, it is preferred that the front wall of one of the connecting plates is on the same horizontal plane as the front wall of the baffle, and the rear wall of the other connecting plate is on the same horizontal plane as the rear wall of the baffle.

[0011] Preferably, in any of the above embodiments, the height of the connecting plate is the same as the height of the baffle, and the thickness of the connecting plate is half the thickness of the baffle.

[0012] As described above, the quick-installation and disassembly assembly trench support device of this utility model has the following beneficial effects:

[0013] 1. In this utility model, the crossbar is set at the upper part between the two baffles, which avoids setting the support structure at the lower position inside the trench, thereby reducing the occupation of the lower space. This allows construction workers to have a more open working space when laying pipes and cleaning earthwork at the bottom of the trench, and makes it easier to use various construction tools and equipment, improving the flexibility and efficiency of construction operations, and reducing construction difficulties and safety hazards caused by limited space.

[0014] 2. In this utility model, the setting of connecting plates on both sides of the baffle can facilitate the flexible adjustment of the support length by increasing or decreasing the number of baffles according to different trench length requirements. This allows the device to be quickly adapted to both small short trenches and large long trenches, avoiding the problem that traditional support cannot meet the needs of different projects due to fixed length. This improves the versatility of the tool and reduces customization costs.

[0015] 3. In this utility model, the device can be quickly installed and dismantled, flexibly assembled, enhances the support effect, and optimizes personnel movement and working space. Therefore, this support device has significant application advantages and promotion value in the construction of urban sewage pipe networks, and helps to promote the efficient and safe construction of urban sewage pipe networks. Attached Figure Description

[0016] Figure 1 The diagram shown is a structural schematic of this utility model.

[0017] Figure 2 Displayed as a side view of any one of the baffles.

[0018] Figure 3 This is a front view of the present invention.

[0019] Figure 4 The diagram shown is a structural schematic of a strut.

[0020] Component designation explanation

[0021] 1-Baffle; 2-Vertical brace; 3-Connecting plate; 4-Bolt hole; 5-Conical bottom; 6-Strut; 61-Strut groove; 7-Horizontal bar; 8-Connecting seat; 9-Stiffening plate; 10-Bolt. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 4 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 scope of this invention. 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 invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0024] Please see Figure 1-4 This utility model provides a quick-installation and disassembly prefabricated trench support device, including two parallel baffles 1, with at least two crossbars 7 between the two baffles 1. The crossbars 7 are located at the upper end of the baffles 1. At least two vertically arranged support rods 6 are fixedly connected to the opposite surfaces of the two baffles 1. The support rods 6 are hollow inside to form support grooves 61. Vertical supports 2 that can move along the length of the support grooves 61 are provided in the support grooves 61. The bottom of the vertical supports 2 is a conical bottom 5.

[0025] In this embodiment, the quick-installation and disassembly prefabricated trench support device includes two baffles 1. The opposite sides of the two baffles 1 contact the two inner walls of the trench, respectively. Two horizontal bars 7 are installed between the two baffles 1 at a distance of 0.3m from the top of the baffles 1. The installation of the horizontal bars 7 can enhance the overall strength and stability of the baffles 1, making them less prone to deformation when subjected to the soil pressure of the trench wall.

[0026] The crossbar 7, positioned at the top of the baffle 1, effectively avoids the need for supporting structures at lower levels within the trench, thus reducing the space occupied. This provides construction workers with a more open working space when laying pipes and clearing earthwork at the bottom of the trench, allowing for easier use of various construction tools and equipment, improving the flexibility and efficiency of construction operations, and reducing construction difficulties and safety hazards caused by limited space.

[0027] However, the crossbar 7, located at the top of the baffle 1, only provides stability to the upper part of the baffle 1 and cannot support the lower part. Therefore, in order to ensure a wide working space between the baffles 1 while enhancing the support of the lower part of the baffle 1 to the soil, in this embodiment, two vertically arranged support rods 6 are connected to the opposite surfaces of the two baffles 1. Vertical supports 2, which can move along the length of the support rod 6, are installed inside the support rods 6, and the bottom of the vertical supports 2 is a conical base 5. During operation, the vertical supports 2 are inserted vertically into the ground, thereby transferring the soil pressure on the baffle 1 to the ground, providing stable vertical support for the baffle 1, ensuring that the baffle 1 maintains good structural integrity even under high-pressure environments such as deep soil layers or soft soil geology, and providing reliable lateral protection for trench construction.

[0028] In this embodiment, the horizontal bar 7 is not limited to being set at a distance of 0.3m from the top of the baffle 1. It can be adjusted according to the actual construction situation, such as setting the horizontal bar 7 at a distance of 0.4m or 0.5m from the top of the baffle 1.

[0029] Among them, the crossbar 7 is made of a circular cross section, high-strength steel plate, and is treated with rust prevention.

[0030] In this embodiment, the support rod 6 is made of bent steel plate, and the support rod 6 is fully welded to the baffle 1. The shape and size of the support groove 61 are precisely matched with the vertical support 2, ensuring that the vertical support 2 can move freely up and down within the support groove 61, providing the vertical support 2 with room to move and facilitating its vertical insertion into the ground to provide vertical support for the baffle 1. Specifically, the inner radius of the support rod 6 is 0.03m, and the outer radius is 0.06m.

[0031] The length of the vertical support 2 is greater than the length of the support groove 61, which facilitates the movement of the vertical support 2 by the workers. The bottom of the vertical support 2 is set as a conical bottom 5. This conical structure makes it easier for the vertical support 2 to be inserted into the soil, reduces the difficulty of inserting it into the ground, and improves construction efficiency.

[0032] In this embodiment, in order to further increase the stability of the baffle 1, a horizontally arranged stiffening plate 9 is provided on the baffle 1.

[0033] As a further description of the above embodiment, a plurality of connecting seats 8 are symmetrically arranged on the opposite surfaces of the two baffles 1. The connecting seats 8 are welded to the baffles 1, and the two ends of the crossbar 7 are connected to the connecting seats 8 by bolts 10.

[0034] In this embodiment, connecting holes are made at both ends of the crossbar 7 and on the connecting seat 8. The bolts 10 are passed through the connecting holes in sequence to connect the crossbar 7 to the connecting seat 8. The bolts 10 are 8.8 grade high-strength bolts with a hole diameter of 0.025 μm. The surface of the bolts 10 is treated with anti-corrosion measures such as galvanizing. They are tightened symmetrically with a torque wrench according to the specified torque.

[0035] In this embodiment, the connecting seat 8 and the baffle 1 are welded together using high-strength steel plates, and the weld joint is beveled and multi-layer multi-pass welding is used.

[0036] As a further description of the above embodiment, each of the baffles 1 has a connecting plate 3 welded on both sides, and the connecting plate 3 has a plurality of bolt holes 4 evenly opened along the length direction of the connecting plate 3.

[0037] In this embodiment, to facilitate adjustment of the support length according to different trench length requirements, connecting plates 3 with bolt holes 4 are welded to both sides of each baffle 1. When the support length needs to be increased, the connecting plates 3 on the two baffles 1 are connected together with bolts 10. Conversely, when the support length needs to be decreased, the corresponding baffle 1 is removed. The whole process is simple to operate, and the support length can be flexibly adjusted by increasing or decreasing the number of baffles 1 and connecting them with bolts 10. Whether it is a small short trench or a large long trench project, it can be quickly adapted, avoiding the problem that traditional support cannot meet different project needs due to fixed length, improving tool versatility and reducing customization costs.

[0038] To ensure that adjacent baffles 1 remain on the same horizontal plane after connection, in this embodiment, the front wall of one connecting plate 3 is on the same horizontal plane as the front wall of baffle 1, and the rear wall of the other connecting plate 3 is on the same horizontal plane as the rear wall of baffle 1. Furthermore, the height of the connecting plate 3 is the same as the height of the baffle 1, and the thickness of the connecting plate 3 is half the thickness of the baffle 1. This ensures that the two connecting plates 3 overlap when connected, and the thickness after overlap is exactly equal to the thickness of the baffle 1, thereby guaranteeing the smoothness of the surface of the connected baffles 1.

[0039] Specifically, the dimensions of baffle 1 are 1.8*1.5*0.1m, and the dimensions of connecting plate 3 are 1.8*0.2*0.05m. High-strength steel is selected and high-quality welding process is used to connect connecting plate 3 and baffle 1.

[0040] In summary, the specific installation and dismantling methods for the quick-installation and dismantling prefabricated trench support device are as follows:

[0041] 1. Installation

[0042] Select an appropriate number of baffles 1 according to the designed length of the trench. Align the connecting plate 3 of one baffle 1 with the connecting plate 3 of another baffle 1 so that the bolt holes 4 overlap. Then use bolts 10 to pass through the bolt holes 4 and tighten them to complete the extension connection of the baffles 1 and form a baffle 1 combination that meets the trench length requirements.

[0043] Align the vertical support 2 with the tapered end vertically with the support groove 61 on the baffle 1, and forcefully insert the vertical support 2 into the ground so that the vertical support 2 provides vertical support for the baffle 1. Repeat this step to insert the vertical support 2 into the support groove 61 of each baffle 1.

[0044] Place the assembled baffle 1 and vertical support 2 on both sides of the trench to complete the installation of the support tools.

[0045] The entire installation process requires no complex skills or large equipment from the construction workers. They can quickly align the connecting holes on the connecting plate 3 and tighten the bolts 10 using only common hand tools to complete the extension connection of the baffle 1, which greatly improves construction efficiency and reduces labor costs.

[0046] 2. Disassembly:

[0047] First, pull the vertical support 2 out of the ground. Since one end of the vertical support 2 is tapered, the resistance during insertion and extraction makes the extraction operation easier to some extent. Use a tool to unscrew the bolts 10 connecting the baffle 1 and disassemble the baffle 1. Collect and organize the disassembled baffle 1, vertical support 2, and other components for future use.

[0048] The entire process of dismantling the support device is convenient and quick, which is conducive to site cleanup and tool transfer and reuse. It is especially suitable for projects that require frequent changes of construction sites and rapid dismantling of support.

[0049] In summary, the device of this invention allows for adjustment of the baffle length according to different trench lengths, thereby meeting diverse usage requirements. Simultaneously, the device effectively reduces the space occupied in the lower part of the trench, facilitating construction operations and significantly improving the flexibility and efficiency of construction operations, while reducing construction difficulties and safety hazards caused by limited space. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0050] 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 quick assembly and disassembly type trench support device, comprising two parallel arranged baffle plates (1), at least two cross bars (7) are arranged between the two baffle plates (1), characterized in that: The crossbar (7) is set on the upper end of the baffle (1). At least two vertically arranged support rods (6) are fixedly connected to the opposite surfaces of the two baffles (1). The support rods (6) are hollow inside to form a support groove (61). A vertical support (2) that can move along the length direction of the support groove (61) is provided in the support groove (61). The bottom of the vertical support (2) is a conical bottom (5).

2. The quick-erecting assembly and disassembly type trench support device according to claim 1, characterized in that: The crossbar (7) is positioned 0.3 to 0.5 m from the top of the baffle (1).

3. The quick-erecting assembly and disassembly type trench support device according to claim 1, characterized in that: Each of the baffles (1) is provided with a horizontally arranged stiffening plate (9) in the middle.

4. The quick-erecting assembly and disassembly type trench support device according to claim 1, characterized in that: Several connecting seats (8) are symmetrically arranged on the opposite surfaces of the two baffles (1). The connecting seats (8) are welded to the baffles (1). The two ends of the crossbar (7) are connected to the connecting seats (8) by bolts (10).

5. The quick-erecting assembly and disassembly type trench support device according to claim 1, characterized in that: Each of the baffles (1) has a connecting plate (3) welded on both sides, and each of the connecting plates (3) has a number of bolt holes (4) evenly opened along the length of the connecting plate (3).

6. The quick-erecting assembly and disassembly type trench support device according to claim 5, characterized in that: The front wall of one of the connecting plates (3) is on the same horizontal plane as the front wall of the baffle (1), and the rear wall of the other connecting plate (3) is on the same horizontal plane as the rear wall of the baffle (1).

7. The quick-erecting assembly and disassembly type trench support device according to claim 5, characterized in that: The height of the connecting plate (3) is the same as the height of the baffle (1), and the thickness of the connecting plate (3) is half the thickness of the baffle (1).

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