A trench excavation support structure
Patent Information
- Application Number
- CN202522078955.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-09-26
AI Technical Summary
[0002]在各类工程建设中，沟槽开挖是常见工序，用于铺设管线、修建基础等，目前市面上的沟槽支护设备多为固定尺寸结构，或采用钢管、钢板焊接组成的临时支护框架，固定尺寸支护结构仅能适配单一宽度的沟槽，当沟槽宽度发生变化时，需更换不同规格的支护设备，导致设备通用性差、施工成本增加，临时焊接的支护框架虽可调整宽度，但组装与拆卸耗时久，且焊接节点易因受力不均出现断裂，存在安全隐患，同时，现有部分可调节支护结构调节精度低，调节后整体稳定性不足，难以应对复杂地质条件下的沟槽支护需求，且缺乏便捷的拆装设计，影响施工效率，因此，需要设计一种沟槽开挖支护结构来解决上述问题
1、本实用新型中，通过左T形短套板、右T形短套板与调节长板之间相互的配合关系，使得调节长板能够通过在左T形短套板和右T形短套板的调节槽内滑动，再结合插槽二与插槽三的对齐以及T形固定插销二的固定，对左支护板与右支护板之间的间距进行灵活调整，解决了现有沟槽支护结构通用性差，固定尺寸结构无法适配不同宽度沟槽、需频繁更换设备，且临时焊接结构拆装效率低的问题，实现了支护结构可根据沟槽实际宽度精准调节的效果，无需更换整套设备，也避免了复杂的焊接操作，大幅提升了施工效率，降低了施工成本与工期消耗。
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Figure CN224755064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underground engineering construction support technology, and in particular to a trench excavation support structure. Background Technology
[0002] Trench excavation is a common procedure in various engineering constructions, used for laying pipelines, building foundations, etc. Currently, most trench support equipment on the market is of fixed size or uses temporary support frames made of welded steel pipes and plates. Fixed-size support structures can only be adapted to trenches of a single width. When the trench width changes, different specifications of support equipment need to be replaced, resulting in poor equipment versatility and increased construction costs. Although the width of temporary welded support frames can be adjusted, assembly and disassembly are time-consuming, and welded joints are prone to breakage due to uneven stress, posing safety hazards. At the same time, some existing adjustable support structures have low adjustment precision and insufficient overall stability after adjustment, making it difficult to meet the trench support needs under complex geological conditions. Furthermore, they lack convenient disassembly and assembly designs, affecting construction efficiency. Therefore, it is necessary to design a trench excavation support structure to solve the above problems. Utility Model Content
[0003] The main purpose of this utility model is to provide a trench excavation support structure that can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A trench excavation support structure includes a left support plate and a right support plate. Multiple grid grooves are formed in the middle of the opposite surfaces of the left and right support plates. Long grooves are formed at both the front and rear of the opposite surfaces of the left and right support plates. Multiple through slots are formed at both the front and rear ends of the left and right support plates. An L-shaped fixing pin is inserted into each slot. Adjustment devices are installed at both the front and rear of the opposite surfaces of the left and right support plates via the L-shaped fixing pins. Four adjustment devices are provided. A T-shaped fixing pin is inserted into the upper end of each adjustment device. A handle groove is formed on the upper side of each side of the T-shaped fixing pin.
[0005] Preferably, the adjusting device includes a left T-shaped short sleeve plate and a right T-shaped short sleeve plate. A short groove is formed in the middle of the surface of both the left and right T-shaped short sleeve plates. A through-hole adjusting groove is formed on the opposite surface of both the left and right T-shaped short sleeve plates. A slot three is formed in the lower wall of each short groove. An adjusting long plate is movably connected between the left T-shaped short sleeve plate and the adjusting groove. Multiple slot twos are formed laterally on the surface of the adjusting long plate. A through-hole slot four is formed at the left front end of the left T-shaped short sleeve plate and the right front end of the right T-shaped short sleeve plate. A locking groove is formed at the upper end of both the left and right T-shaped short sleeve plates. The left and right T-shaped short sleeve plates are respectively located within the long groove of the left support plate and the long groove of the right support plate.
[0006] Preferably, the left support plate and the right support plate are symmetrically distributed, and the surfaces of the left support plate and the right support plate are perpendicular to the horizontal ground. The tops of the left support plate and the right support plate are at the same horizontal height, and the plurality of grid grooves are arranged linearly at equal intervals in the middle of the opposite surfaces of the left support plate and the right support plate.
[0007] Preferably, the plurality of slots are distributed at equal intervals at the front and rear ends of the left and right support plates, and the slots at the front end of the left support plate and the slots at the front end of the right support plate are symmetrically arranged.
[0008] Preferably, the left T-shaped short sleeve and the right T-shaped short sleeve are slidably connected to the long grooves of the left support plate and the right support plate, respectively.
[0009] Preferably, the two ends of the adjusting plate pass through the adjusting grooves of the left T-shaped short sleeve plate and the right T-shaped short sleeve plate, respectively, and are fixed by the T-shaped fixing pin 2 through the cooperation of slot 2 and slot 3.
[0010] Preferably, the adjustment groove is a long strip-shaped through groove, and the second slot is distributed at equal intervals along the length of the adjustment plate.
[0011] Preferably, the left and right support plates are arranged in parallel opposite directions via four adjusting devices.
[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, the cooperation between the left T-shaped short sleeve plate, the right T-shaped short sleeve plate, and the adjusting long plate allows the adjusting long plate to slide within the adjusting grooves of the left and right T-shaped short sleeve plates. Combined with the alignment of slot two and slot three and the fixing of T-shaped fixing pin two, the distance between the left and right support plates can be flexibly adjusted. This solves the problems of poor versatility of existing trench support structures, the inability of fixed-size structures to adapt to trenches of different widths, the need for frequent equipment replacement, and the low disassembly and assembly efficiency of temporary welding structures. It achieves the effect of precise adjustment of the support structure according to the actual width of the trench, without the need to replace the entire set of equipment, and avoids complex welding operations, greatly improving construction efficiency and reducing construction costs and time consumption.
[0013] 2. In this utility model, through the cooperation between the L-shaped fixing pin one and the slot one of the left and right support plates, and the cooperation between the T-shaped fixing pin two and the slot, slot two, and slot three, combined with the enhancement effect of the grid groove on the structural stability of the support plate, the left and right support plates can be fixed by the coordinated action of multiple sets of adjustment devices to form a stable opposing support structure. This solves the problems of insufficient adjustment accuracy, poor overall stability after adjustment, and easy safety accidents caused by force imbalance in existing adjustable trench support structures. Through this structural design, the adjustment accuracy of the support structure is improved, ensuring that the connection of each component is tight after the spacing is adjusted, and effectively ensuring construction safety. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a trench excavation support structure according to the present invention; Figure 2 This is a schematic diagram of a small-explosive structure of a trench excavation support structure according to the present invention; Figure 3 This is a schematic diagram of the disassembled structure of the adjustment device for a trench excavation support structure according to the present invention. Figure 4 This is a detailed enlarged structural diagram of section A of a trench excavation support structure according to this utility model; Figure 5 This is a detailed enlarged structural diagram of section B of a trench excavation support structure according to this utility model.
[0015] In the diagram: 1. Left support plate; 2. Adjustment device; 3. Right support plate; 4. Long groove; 5. Grid groove; 6. L-shaped fixing pin one; 7. Slot one; 8. T-shaped fixing pin two; 9. Handle groove; 21. Adjustment plate; 22. Left T-shaped short sleeve plate; 23. Slot two; 24. Card slot; 25. Adjustment groove; 26. Slot three; 27. Slot four; 28. Right T-shaped short sleeve plate; 29. Short groove. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] Please see Figure 1-5 This utility model provides a technical solution: A trench excavation support structure, as shown in Figure 1 and Figure 2 As shown, the support includes a left support plate 1 and a right support plate 3. Multiple grid grooves 5 are formed in the middle of the opposite surfaces of the left and right support plates 1 and 3. Long grooves 4 are formed at both the front and rear of the opposite surfaces of the left and right support plates 1 and 3. Multiple through slots 7 are formed at both the front and rear of the left and right support plates 1 and 3. L-shaped fixing pins 6 are inserted into the slots 7. Adjustment devices 2 are installed at both the front and rear of the opposite surfaces of the left and right support plates 1 and 3 via L-shaped fixing pins 6. Four adjustment devices 2 are provided. T-shaped fixing pins 8 are inserted into the upper end of each adjustment device 2. Each of the 8 has a handle groove 9 on the upper part of one side. The left support plate 1 and the right support plate 3 are symmetrically distributed, and the surfaces of the left support plate 1 and the right support plate 3 are perpendicular to the horizontal ground. The tops of the left support plate 1 and the right support plate 3 are at the same horizontal height. Multiple grid grooves 5 are arranged linearly at equal intervals in the middle of the opposite surfaces of the left support plate 1 and the right support plate 3. Multiple slots 7 are distributed at equal intervals at the front and rear ends of the left support plate 1 and the right support plate 3. The slots 7 at the front end of the left support plate 1 and the slots 7 at the front end of the right support plate 3 are symmetrically arranged. The left support plate 1 and the right support plate 3 are arranged parallel to each other through four adjusting devices 2.
[0020] The above scheme involves placing left and right support plates 1 and 3, symmetrically distributed with their surfaces perpendicular to the ground and their tops at the same horizontal height, on opposite sides of the trench. Four adjusting devices 2 are initially positioned using the long grooves 4 at the front and rear of the left and right support plates 1 and 3. Then, L-shaped fixing pins 6 are inserted into multiple slots 7, symmetrically arranged and evenly spaced at the front and rear ends of the left and right support plates 1 and 3, to securely connect the adjusting devices 2 to the left and right support plates. Finally, the adjustment devices 2 and the T-shaped fixing pins 8 inserted at their upper ends, along with the handle groove 9 on one side of their upper edge, facilitate insertion and removal. The distance between the left support plate 1 and the right support plate 3 is adjusted so that they are kept parallel and facing each other through four adjustment devices 2. Finally, multiple grid grooves 5 with equal spacing in the middle of the opposite face of the left support plate 1 and the right support plate 3 can enhance the stability and deformation resistance of the plate structure. The overall trench excavation support structure can efficiently support the sidewall of the trench, effectively preventing collapse during the trench excavation process. At the same time, the distance between the left and right support plates can be flexibly adjusted according to different trench widths to adapt to various excavation scenarios. Moreover, each component is assembled and fixed by the cooperation of the pin and the trench body, which makes installation and disassembly convenient, reduces the construction difficulty, and improves the construction efficiency of trench excavation operations.
[0021] Please see Figure 3 , Figure 4 and Figure 5 The adjusting device 2 includes a left T-shaped short sleeve plate 22 and a right T-shaped short sleeve plate 28. Both the left T-shaped short sleeve plate 22 and the right T-shaped short sleeve plate 28 have short grooves 29 in the middle of their surfaces. The opposite surfaces of the left T-shaped short sleeve plate 22 and the right T-shaped short sleeve plate 28 each have through-hole adjusting grooves 25. The lower wall of each short groove 29 has a slot 26. An adjusting long plate 21 is movably connected between the left T-shaped short sleeve plate 22 and the adjusting grooves 25. The surface of the adjusting long plate 21 has multiple slots 23 horizontally opened. The left front left of the left T-shaped short sleeve plate 22 and the right front right of the right T-shaped short sleeve plate 28 each have through-hole slots 27. Both the upper ends of the left and right T-shaped short sleeves 22 and 28 are provided with slots 24. The left and right T-shaped short sleeves 22 and 28 are located in the long grooves 4 of the left support plate 1 and the right support plate 3, respectively. The left and right T-shaped short sleeves 22 and 28 are slidably connected to the long grooves 4 of the left support plate 1 and the right support plate 3, respectively. The two ends of the adjusting plate 21 pass through the adjusting grooves 25 of the left and right T-shaped short sleeves 22 and 28, respectively, and are fixed by the T-shaped fixing pins 28 through the cooperation of the second slot 23 and the third slot 26. The adjusting groove 25 is a long strip through groove, and the second slot 23 is evenly distributed along the length of the adjusting plate 21.
[0022] Through the above scheme: When the adjustment device 2 of the trench excavation support structure is working, firstly, the left T-shaped short sleeve plate 22 and the right T-shaped short sleeve plate 28 are placed in the long groove 4 of the left support plate 1 and the long groove 4 of the right support plate 3, respectively. Since the left T-shaped short sleeve plate 22 and the right T-shaped short sleeve plate 28 are slidably connected to the long groove 4 of the left support plate 1 and the right support plate 3, respectively, their positions in the long groove 4 can be adjusted according to the support requirements. Then, the two ends of the adjusting long plate 21 are respectively inserted through the long strip-shaped through-groove adjustment groove 25 opened on the opposite sides of the left T-shaped short sleeve plate 22 and the right T-shaped short sleeve plate 28, so that the adjusting long plate 21 forms a movable connection with the left T-shaped short sleeve plate 22 and the right T-shaped short sleeve plate 28. Then, according to the trench width, the adjusting long plate 21 is pushed to slide in the adjusting groove 25. Since the surface of the adjusting long plate 21 has evenly spaced grooves along its length, the adjusting long plate 21 is able to slide smoothly. Multiple slots 23, when adjusted to a suitable length, align one of the slots 23 on the adjusting plate 21 with the slot 3 26 opened in the lower groove wall of the short groove 29 in the middle of the surface of the left T-shaped short sleeve plate 22 and the right T-shaped short sleeve plate 28. Then, insert the T-shaped fixing pin 28 through the slot 24 opened at the upper end of the left T-shaped short sleeve plate 22 and the right T-shaped short sleeve plate 28 into the aligned slots 23 and 3 26 to achieve a stable fixation between the adjusting plate 21 and the left T-shaped short sleeve plate 22 and the right T-shaped short sleeve plate 28. At the same time, the through slot 4 27 opened at the front left of the left T-shaped short sleeve plate 22 and the front right of the right T-shaped short sleeve plate 28 can help strengthen the fixing effect. Through the above structure and operation, the adjusting device 2 can accurately adjust the distance between the left support plate 1 and the right support plate 3 to adapt to the trench excavation support requirements of different widths.
[0023] It should be noted that this utility model is a trench excavation support structure. When performing trench excavation support operations, the left support plate 1 and the right support plate 3 are first placed symmetrically on both sides of the trench, ensuring that the surfaces of both the left support plate 1 and the right support plate 3 are perpendicular to the horizontal ground and their tops are at the same horizontal height. Then, four adjusting devices 2 are respectively installed in the long grooves 4 at the front and rear of the opposite faces of the left support plate 1 and the right support plate 3. Because the left T-shaped short sleeve 22 and the right T-shaped short sleeve 28 are respectively attached to the left support plate 1 and the right support plate 3... The long groove 4 of the support plate 3 is slidably connected, allowing the adjustment device 2 to be positioned within the long groove 4. Then, using multiple slots 7 evenly spaced at the front and rear ends of the left and right support plates 1 and 3, L-shaped fixing pins 6 are inserted into the corresponding slots 7, achieving initial fixation of the adjustment device 2 to the left and right support plates 1 and 3. Afterwards, based on the width of the groove, the adjusting plate 21 is pushed so that its two ends slide within the adjusting grooves 25 of the left T-shaped short sleeve 22 and the right T-shaped short sleeve 28, respectively. The adjusting groove 25 is a long, narrow... The adjusting plate 21 has multiple slots 23 evenly spaced along its length. After adjusting to a suitable width, one of the slots 23 on the adjusting plate 21 is aligned with a slot 26 on the lower wall of the short groove 29 of the left T-shaped short sleeve 22 and the right T-shaped short sleeve 28. Then, the T-shaped fixing pin 28 is inserted through the slot 24 into the slot 26 and the corresponding slot 23, thus fixing the adjusting plate 21 to the left T-shaped short sleeve 22 and the right T-shaped short sleeve 28. Simultaneously, the left front end of the left T-shaped short sleeve 22 aligns with the front end of the right T-shaped short sleeve 28. The slot 27 on the right side of the end can assist in fixing, so that the left support plate 1 and the right support plate 3 are set parallel to each other through four adjustment devices 2. The multiple grid slots 5 arranged linearly at equal intervals in the middle of the opposite face of the left support plate 1 and the right support plate 3 can enhance the structural stability and play a supporting role during the trench excavation process to prevent the trench from collapsing. The handle slot 9 on the upper side of one side of the T-shaped fixing pin 2 8 makes it easy to pull out the T-shaped fixing pin 2 8 when adjustment or disassembly is needed, so as to flexibly adjust the width of the support structure to adapt to the trench excavation needs of different widths.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A trench excavation support structure, characterised in that: The system includes a left support plate (1) and a right support plate (3). Multiple grid grooves (5) are opened in the middle of the opposite surfaces of the left support plate (1) and the right support plate (3). Long grooves (4) are opened in the front and rear of the opposite surfaces of the left support plate (1) and the right support plate (3). Multiple through slots (7) are opened in the front and rear of the left support plate (1) and the right support plate (3). An L-shaped fixing pin (6) is inserted into the slot (7). An adjustment device (2) is installed in the front and rear of the opposite surfaces of the left support plate (1) and the right support plate (3) through the L-shaped fixing pin (6). There are four adjustment devices (2). A T-shaped fixing pin (8) is inserted into the upper end of the adjustment device (2). A handle groove (9) is opened on the upper side of the T-shaped fixing pin (8).
2. A trench excavation support structure according to claim 1, characterised in that: The adjusting device (2) includes a left T-shaped short sleeve plate (22) and a right T-shaped short sleeve plate (28). Both the left T-shaped short sleeve plate (22) and the right T-shaped short sleeve plate (28) have short grooves (29) in the middle of their surfaces. Both the left T-shaped short sleeve plate (22) and the right T-shaped short sleeve plate (28) have through-hole adjusting grooves (25) on their opposite surfaces. The lower wall of each short groove (29) has a slot three (26). An adjusting long plate (2) is movably connected between the left T-shaped short sleeve plate (22) and the adjusting groove (25). 1) The surface of the adjusting plate (21) is provided with multiple slots (23) in the horizontal direction. The left front end of the left T-shaped short sleeve plate (22) and the right front end of the right T-shaped short sleeve plate (28) are provided with through slots (27). The upper ends of the left T-shaped short sleeve plate (22) and the right T-shaped short sleeve plate (28) are provided with slots (24). The left T-shaped short sleeve plate (22) and the right T-shaped short sleeve plate (28) are respectively located in the long groove (4) of the left support plate (1) and the long groove (4) of the right support plate (3).
3. A trench excavation support structure according to claim 1, wherein: The left support plate (1) and the right support plate (3) are symmetrically distributed, and the surfaces of the left support plate (1) and the right support plate (3) are perpendicular to the horizontal ground. The tops of the left support plate (1) and the right support plate (3) are at the same horizontal height. The multiple grid grooves (5) are arranged linearly at equal intervals in the middle of the opposite surfaces of the left support plate (1) and the right support plate (3).
4. A trench excavation support structure according to claim 1, wherein: The multiple slots (7) are distributed at equal intervals at the front and rear ends of the left support plate (1) and the right support plate (3), and the slots (7) at the front end of the left support plate (1) and the slots (7) at the front end of the right support plate (3) are symmetrically arranged.
5. A trench excavation support structure according to claim 2, wherein: The left T-shaped short sleeve (22) and the right T-shaped short sleeve (28) are slidably connected to the long grooves (4) of the left support plate (1) and the right support plate (3), respectively.
6. The trench excavation support structure according to claim 2, characterized in that: The two ends of the adjusting plate (21) pass through the adjusting grooves (25) of the left T-shaped short sleeve plate (22) and the right T-shaped short sleeve plate (28), respectively, and are fixed by the T-shaped fixing pin (8) through the cooperation of the second slot (23) and the third slot (26).
7. The trench excavation support structure according to claim 2, characterized in that: The adjustment groove (25) is a long strip through groove, and the slot two (23) is distributed at equal intervals along the length of the adjustment plate (21).
8. The trench excavation support structure according to claim 1, characterized in that: The left support plate (1) and the right support plate (3) are arranged in parallel and opposite directions through four adjusting devices (2).