A size-adjustable trench excavation movable plate support device

Abstract

The utility model is suitable for the field of trench support, provide a size adjustable trench excavation mobile board type support device, including two protection subassembly, adjusting assembly, operation block, four limiting components, four fixed components and auxiliary support subassembly, protection subassembly contains mobile board and four corner fixed rod, adjusting assembly is by thread barrel, T shape thread rod and bearing constitutes, limiting component contains limiting cylinder, sliding rod, limiting block and limiting groove, fixed component is for inserting rod and vertical bolt, and auxiliary support subassembly includes connecting block, support rod, movable block, guide rod and the guide groove of adaptation mobile board adjusting stroke, in the utility model, through operation block rotation thread barrel, can drive thread rod and drive mobile board adjusting width, adaptation different trench, limiting component guarantees mobile stable, fixed component locks size, auxiliary support subassembly enhances support intensity, solves the size fixed of existing device, poor stability, the problem of insufficient support, promotes construction efficiency and security.

Description

Technical Field

[0001] This utility model belongs to the field of trench support, and in particular relates to a movable plate support device for trench excavation with adjustable size. Background Technology

[0002] During trench excavation, especially for loose soils such as sandy soil, the trench slopes are prone to collapse due to lack of effective support, posing a great construction safety hazard. Support devices are needed to ensure slope stability.

[0003] Existing support devices are mostly made by welding or assembling steel pipes and steel plates. Their dimensions are fixed and cannot be flexibly adjusted according to the width of the trench. Different devices need to be replaced when facing trenches of different specifications, resulting in low construction efficiency.

[0004] Some support devices lack stable limiting and support structures, resulting in poor overall stability after size adjustment. They are prone to displacement during construction, affecting the support effect and increasing construction risks.

[0005] The existing equipment does not have auxiliary support components and relies solely on the protective components for support. When facing deep trenches or trenches with extremely poor soil conditions, the support strength is insufficient and it is difficult to meet the construction safety requirements.

[0006] Therefore, a movable plate support device for trench excavation with adjustable dimensions is needed to solve the above problems. Utility Model Content

[0007] The purpose of this utility model embodiment is to provide a trench excavation mobile plate support device with adjustable size to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An adjustable-size trench excavation mobile plate support device includes a protective component, an adjustment component, an operating block, four limiting components, four fixing components, and an auxiliary support component. The protective component includes a mobile plate and four fixing rods. The sides of two mobile plates that are close to each other are connected to the four fixing rods. The mobile plates directly contact the trench sidewall and can directly prevent the slope from collapsing. The fixing rods provide connection support for the mobile plates and connect to the limiting components to ensure the stability of the mobile plates during adjustment and prevent the mobile plates from deforming due to uneven force.

[0010] The adjusting assembly includes a threaded cylinder, a threaded rod, and a bearing. The threaded rod and the bearing are respectively connected to two movable plates. The threaded cylinder is connected inside the bearing, and the threaded rod is threadedly connected inside the threaded cylinder.

[0011] The operating block is snapped onto the outside of the threaded cylinder, and the size can be adjusted by rotating the threaded cylinder through the operating block;

[0012] The limiting assembly includes a limiting cylinder, two sliding rods, two limiting blocks, and two limiting grooves. The two sliding rods are slidably connected within the same limiting cylinder, and both limiting grooves are formed within the limiting cylinder. The ends of the two sliding rods that are far apart are inserted into the outside of the fixed rod, and the ends of the two sliding rods that are close together are connected to the limiting blocks, which are slidably connected within the limiting grooves. The sliding rods and the limiting cylinder cooperate to limit the movement direction of the moving plate, preventing deviation during adjustment. The limiting blocks and limiting grooves prevent the sliding rods from rotating within the limiting cylinder, ensuring accurate insertion positions of the sliding rods and the fixed rods, facilitating subsequent installation of the fixing assembly.

[0013] The fixing component includes a plug rod and a pin. The plug rod is inserted into the fixing rod and the sliding rod, and the pin is inserted into the plug rod. When the moving plate is adjusted to match the groove width, the plug rod can fix the fixing rod and the sliding rod to prevent them from sliding relative to each other. The pin can prevent the plug rod from falling off, further improving the structural stability and ensuring that the support device maintains a fixed size during construction.

[0014] The auxiliary support assembly includes a connecting block, a support rod, a movable block, a guide rod, and a guide groove. The connecting block is connected to a limiting cylinder. One end of the support rod is hinged to the connecting block, and the other end of the support rod is hinged to the movable block. The movable block is slidably connected to the outside of the guide rod. The guide groove is formed inside the movable plate, and the movable block is slidably connected inside the guide groove. As the core force-bearing and stabilizing structure of the device, the auxiliary support assembly disperses lateral pressure and enhances the support's load-bearing capacity.

[0015] In a further technical solution, the threaded rod is T-shaped, and the operating block is hexagonal.

[0016] In a further technical solution, the threaded cylinder is positioned between the two upper limiting cylinders.

[0017] In a further technical solution, the fixing rod is vertically connected to the moving plate, and the four fixing rods are respectively distributed at the four corners of the moving plate.

[0018] In a further technical solution, the guide rod is arranged parallel to the moving plate, and the length of the guide groove is adapted to the adjustment stroke of the moving plate.

[0019] In a further technical solution, a through hole adapted to the insertion rod is provided at the insertion point of the sliding rod and the fixed rod, and the pin is set perpendicular to the insertion rod.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This utility model has an adjustable size and strong applicability: by rotating the threaded cylinder through the operating block, the threaded cylinder drives the threaded rod to move axially, thereby causing the two moving plates to move closer or further apart, realizing the width adjustment of the device. This transmission structure allows the device to adapt to grooves of various widths without the need to change the device for different grooves, greatly improving the applicability of the device, reducing construction costs and improving construction efficiency.

[0022] This invention features smooth movement and precise adjustment: the sliding rod of the limiting component slides within the limiting cylinder, and the limiting block cooperates with the limiting groove to prevent the sliding rod from rotating. This double-limiting structure ensures smooth linear movement of the moving plate during adjustment, preventing deviation, improving dimensional adjustment accuracy, and ensuring precise contact between the moving plate and the trench sidewall, thus guaranteeing the support effect.

[0023] This utility model features a stable structure and reliable support: the insertion rod of the fixing component is inserted into the fixing rod and the sliding rod, and the insertion rod is fixed by a pin, which can lock the adjusted size of the device and prevent the components from sliding relative to each other; the support rod of the auxiliary support component can distribute the earth pressure borne by the moving plate and enhance the overall support strength of the device; the combination of the two allows the device to remain stable during construction, avoids support failure due to structural loosening or insufficient support, reduces the risk of trench slope collapse, and ensures construction safety.

[0024] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;

[0026] Figure 2 This is a top-view three-dimensional cross-sectional structural diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of a partial three-dimensional cross-section of the present invention.

[0028] In the diagram: 1. Protective component; 11. Moving plate; 12. Fixed rod; 2. Adjusting component; 21. Threaded cylinder; 22. Threaded rod; 23. Bearing; 3. Operating block; 4. Limiting component; 41. Limiting cylinder; 42. Sliding rod; 43. Limiting block; 44. Limiting groove; 5. Fixing component; 51. Insert rod; 52. Pin; 6. Auxiliary support component; 61. Connecting block; 62. Support rod; 63. Movable block; 64. Guide rod; 65. Guide groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] Example 1

[0032] like Figures 1-3 As shown, this utility model embodiment provides a trench excavation mobile plate support device with adjustable size, including two protective components 1, an adjustment component 2, an operating block 3, four limiting components 4, four fixing components 5, and an auxiliary support component 6;

[0033] The fixing rods 12 of the protective component 1 are vertically connected to the movable plate 11, and the four fixing rods 12 are respectively distributed at the four corners of the movable plate 11;

[0034] The threaded cylinder 21 of the adjusting component 2 is located between the two limiting cylinders 41 located above. The threaded rod 22 is T-shaped and threadedly connected inside the threaded cylinder 21. The bearing 23 is connected to one of the moving plates 11, and the threaded cylinder 21 is connected inside the bearing 23.

[0035] The operating block 3 is set to a regular hexagon and is snapped onto the outside of the threaded cylinder 21.

[0036] In this embodiment, when facing grooves of different widths, the operator can apply force through the regular hexagonal operating block 3. Because the regular hexagonal structure is highly compatible with wrenches, it can effectively prevent slippage when applying force. Rotating the operating block 3 can drive the threaded cylinder 21 to rotate synchronously. Since the threaded cylinder 21 is connected to the moving plate 11 through the bearing 23, it will not cause the moving plate 11 to deviate when rotating. It can only drive the T-shaped threaded rod 22 with internal thread connection to move axially. The T-shaped threaded rod 22 is connected to another moving plate 11, thereby driving the two moving plates 11 to move closer or further apart, realizing the width adjustment of the device. At the same time, the fixing rods 12 at the four corners of the moving plate 11 can move synchronously, providing a stable connection point for the subsequent cooperation of the limiting component 4, ensuring that the device structure does not loosen during the adjustment process.

[0037] Example 2

[0038] The difference between this embodiment and Embodiment 1 is that:

[0039] The sliding rod 42 of the limiting component 4 and the fixed rod 12 are provided with a through hole that matches the insertion rod 51. The limiting block 43 and the limiting groove 44 are precision fitting structures with a gap of no more than 0.1mm. The guide rod 64 of the auxiliary support component 6 is arranged parallel to the moving plate 11. The length of the guide groove 65 matches the adjustment stroke of the moving plate 11. The movable block 63 is simultaneously slidably connected to the outside of the guide rod 64 and the inside of the guide groove 65.

[0040] In this embodiment, when adjusting the width of the movable plate 11, the slide rods 42, which are inserted into the four corner fixing rods 12 of the movable plate 11, will slide synchronously within the limiting cylinder 41. Since the limiting block 43 connected to one end of the slide rod 42 is precisely matched with the limiting groove 44, the limiting groove 44 can strictly limit the movement direction of the limiting block 43, preventing the slide rod 42 from rotating or shifting during the sliding process. This, in turn, drives the movable plate 11 to maintain linear movement through the fixing rod 12, preventing the movable plate 11 from tilting. At the same time, the movable block 63 of the auxiliary support component 6 slides on the guide rod 64. The sliding plate 11 moves within the guide groove 65 of the sliding plate 11. The double guide structure further constrains the movement trajectory of the sliding plate 11, ensuring that the sliding plate 11 will not shift left or right or misalign up or down during adjustment. Moreover, the through holes at the insertion points of the sliding rod 42 and the fixed rod 12 are always aligned, and the rod 51 can be directly inserted to complete the fixation without subsequent manual adjustment, greatly improving the adjustment accuracy. This stable and precise adjustment effect ensures that the sliding plate 11 is in uniform contact with the trench sidewall, preventing the slope soil from collapsing from the gaps due to excessive local gaps, thus ensuring the support effect.

[0041] Example 3

[0042] The difference between this embodiment and Embodiment 2 is that:

[0043] The pin 52 of the fixing component 5 is set perpendicularly to the rod 51, and the length of the pin 52 extending out of the rod 51 is not less than 3cm. The support rod 62 of the auxiliary support component 6 is made of Q345 high-strength alloy material. The connecting block 61 and the limiting cylinder 41 are welded and fixed. Wear-resistant bushings are provided at the hinge of the support rod 62, the connecting block 61, and the movable block 63.

[0044] In this embodiment, after the movable plate 11 is adjusted to the target size, the insert rod 51 is inserted into the through hole of the fixed rod 12 and the slide rod 42, and then the pin 52 is vertically inserted into the reserved hole of the insert rod 51. The protruding parts at both ends of the pin 52 can prevent the insert rod 51 from falling off due to vibration or earth pressure during construction, thereby locking the relative position of the fixed rod 12 and the slide rod 42 and preventing the size of the device from loosening after adjustment. Meanwhile, the auxiliary support component 6 plays a crucial supporting role: the connecting block 61 is welded and fixed to the limiting cylinder 41 to ensure connection strength; the support rod 62, made of Q345 high-strength alloy material, transmits the thrust of the moving plate 11 to the movable block 63 in the guide groove 65 when the moving plate 11 is subjected to the thrust of the soil on the ditch slope. The movable block 63 disperses the thrust to the support rod 62, and the support rod 62 then transmits the force to the connecting block 61 and the limiting cylinder 41, preventing the moving plate 11 from deforming or displacing due to excessive force on one side. The entire device remains stable, effectively preventing the ditch slope from collapsing and ensuring the safety of construction personnel. In addition, the wear-resistant bushing at the hinge of the support rod 62 can reduce wear during long-term use, extend the service life of the auxiliary support component 6, and ensure long-term support reliability.

[0045] Working principle and usage process of this invention:

[0046] Before construction, during the device debugging phase, the entire device is moved to a flat surface next to the trench. The target dimensions to be adjusted are determined by measuring the actual width of the trench with a tape measure. The worker holds a wrench and engages it on the regular hexagonal operating block 3. The operating block 3 is rotated clockwise or counterclockwise. The operating block 3 is engaged and fixed with the threaded cylinder 21, which in turn drives the threaded cylinder 21 to rotate synchronously. Since the threaded cylinder 21 is connected to one of the moving plates 11 through the bearing 23, the bearing 23 can reduce the friction when the threaded cylinder 21 rotates. At the same time, it prevents the threaded cylinder 21 from driving the moving plate 11 to rotate. It can only drive the T-shaped threaded rod 22 with internal thread connection to move axially. The other end of the T-shaped threaded rod 22 is fixedly connected to another moving plate 11. Therefore, the axial movement of the threaded rod 22 will cause the two moving plates 11 to move closer or further apart, thus achieving the initial adjustment of the device width.

[0047] During the movement of the movable plate 11, the sliding rods 42, which are inserted into the four corner fixing rods 12 of the movable plate 11, will slide synchronously in the limiting cylinder 41. At this time, the limiting block 43 at one end of the sliding rod 42 slides in the limiting groove 44. The limiting groove 44 restricts the limiting block 43 to move only along the axial direction, preventing the sliding rod 42 from rotating or deviating. In turn, the moving direction of the movable plate 11 is constrained by the fixing rod 12, ensuring that the movable plate 11 moves smoothly along a straight line. At the same time, the movable block 63 of the auxiliary support component 6 will slide synchronously outside the guide rod 64 and inside the guide groove 65 as the movable plate 11 moves. The guide rod 64 is parallel to the movable plate 11, and the length of the guide groove 65 is adapted to adjust the stroke. The double guidance further ensures that the movable plate 11 moves smoothly and avoids misalignment.

[0048] During the dimension fixing and support preparation stage, after visual inspection and tape measure verification confirm that the width of the moving plate 11 is consistent with the width of the trench and that the inner side of the moving plate 11 is aligned with the sidewall of the trench, stop rotating the operating block 3. At this time, check whether the through holes on the fixing rod 12 and the sliding rod 42 are aligned. Due to the precise constraint of the limiting component 4, the through holes will be aligned naturally without manual adjustment. Insert the insertion rod 51 of the fixing component 5 from one side of the fixing rod 12, ensuring that the insertion rod 51 passes through the through hole of the fixing rod 12 and the sliding rod 42 and extends out from the other side of the sliding rod 42. Then, vertically insert the pin 52 into the reserved hole on the side of the insertion rod 51, so that both ends of the pin 52 extend out of the insertion rod 51, thus completing the locking of the fixing rod 12 and the sliding rod 42 and preventing the device from becoming loose during construction.

[0049] Next, check the status of the auxiliary support assembly 6: confirm that there is no jamming at the hinges between the support rod 62 and the connecting block 61 and the movable block 63, and that the movable block 63 slides smoothly within the guide rod 64 and the guide groove 65; if there is slight jamming, apply a small amount of lubricating oil to ensure that the auxiliary support assembly 6 can transmit pressure normally. At this point, the device has completed the support preparation and can be put into trench support operations;

[0050] During the support and dynamic maintenance phase of construction, the excavated soil on the trench slope will exert lateral pressure on the movable plate 11. After the movable plate 11 directly bears the pressure, it will transfer the pressure to the fixed rods 12 at the four corners. The fixed rods 12 will transfer the pressure to the sliding rods 42 through the insert rods 51. The sliding rods 42 will then transfer the pressure to the limiting cylinder 41. The limiting cylinder 41 will contact the ground and transfer part of the pressure to the ground. At the same time, the movable plate 11 will also transfer the pressure to the movable block 63 in the guide groove 65. The movable block 63 will distribute the pressure to the support rod 62. Since the support rod 62 is made of Q345 high-strength alloy material and has wear-resistant bushings at the hinges with the connecting block 61 and the movable block 63, it can stably transfer the pressure to the connecting block 61, greatly enhancing the support strength of the device and preventing the movable plate 11 from deforming or displacing.

[0051] During construction, the device should be dynamically inspected regularly: check whether the pin 52 is loose, and if it is loose, it should be tightened again; check whether the support rod 62 is bent, and if it is slightly bent, it should be replaced in time; confirm whether the moving plate 11 is in close contact with the trench sidewall. If gaps occur due to soil settlement, the position of the moving plate 11 can be finely adjusted by slightly rotating the operating block 3 to fill the gaps and ensure that the support effect is continuous and reliable.

[0052] During the post-construction equipment recovery phase, after the trench construction is completed, the mud and impurities on the surface of the equipment are first cleaned to prevent impurities from affecting the disassembly of the components; the workers pull out the pin 52 of the fixing component 5, and then pull out the plug rod 51 from the through hole of the fixing rod 12 and the sliding rod 42 to release the locking of the fixing rod 12 and the sliding rod 42; then, the operating block 3 is rotated in the opposite direction to drive the threaded cylinder 21 to rotate in the opposite direction, drive the T-shaped threaded rod 22 to move in the opposite direction along the axial direction, and then drive the two moving plates 11 to move closer to each other until the width of the equipment is reduced to the minimum transport size;

[0053] During the retraction of the movable plate 11, the slide bar 42 will slide in the opposite direction within the limiting cylinder 41, and the limiting block 43 will move in the opposite direction along the limiting groove 44; the movable block 63 of the auxiliary support assembly 6 will slide in the opposite direction along the guide rod 64 and the guide groove 65, and the support rod 62 will rotate as the movable block 63 moves until the device retracts to its minimum size; finally, the device is transported to the designated storage area, the surface of the parts is cleaned and rust inhibitor is applied to prevent the parts from rusting due to long-term storage, extend the service life of the device, and prepare for subsequent construction and reuse.

[0054] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A size-adjustable trench excavation mobile plate support device, comprising two protective components (1), an adjustment component (2), an operating block (3), four limiting components (4), four fixing components (5), and an auxiliary support component (6), characterized in that: The protective assembly (1) includes a movable plate (11) and four fixed rods (12), with the adjacent sides of the two movable plates (11) connected to the four fixed rods (12); The adjustment assembly (2) includes a threaded cylinder (21), a threaded rod (22) and a bearing (23). The threaded rod (22) and the bearing (23) are respectively connected to two movable plates (11). The threaded cylinder (21) is connected inside the bearing (23), and the threaded rod (22) is threadedly connected inside the threaded cylinder (21). The operating block (3) is snapped onto the outside of the threaded cylinder (21); The limiting component (4) includes a limiting cylinder (41), two sliding rods (42), two limiting blocks (43), and two limiting grooves (44). The two sliding rods (42) are slidably connected in the same limiting cylinder (41), and the two limiting grooves (44) are both opened in the limiting cylinder (41). The ends of the two sliding rods (42) that are far apart are inserted into the outside of the fixed rod (12), and the ends of the two sliding rods (42) that are close together are connected to the limiting block (43), and the limiting block (43) is slidably connected in the limiting groove (44). The fixing component (5) includes a plug (51) and a pin (52), wherein the plug (51) is inserted into the fixing rod (12) and the sliding rod (42), and the pin (52) is inserted into the plug (51); The auxiliary support assembly (6) includes a connecting block (61), a support rod (62), a movable block (63), a guide rod (64), and a guide groove (65). The connecting block (61) is connected to the limiting cylinder (41). One end of the support rod (62) is hinged to the connecting block (61), and the other end of the support rod (62) is hinged to the movable block (63). The movable block (63) is slidably connected to the outside of the guide rod (64). The guide groove (65) is opened in the movable plate (11), and the movable block (63) is slidably connected in the guide groove (65).

2. The adjustable-size trench excavation movable plate support device according to claim 1, characterized in that: The threaded rod (22) is T-shaped, and the operating block (3) is hexagonal.

3. The adjustable-size trench excavation movable plate support device according to claim 1, characterized in that: The threaded cylinder (21) is located between the two upper limiting cylinders (41).

4. The adjustable-size trench excavation movable plate support device according to claim 1, characterized in that: The fixed rod (12) is vertically connected to the movable plate (11), and the four fixed rods (12) are respectively distributed at the four corners of the movable plate (11).

5. The adjustable-size trench excavation movable plate support device according to claim 1, characterized in that: The guide rod (64) is arranged parallel to the moving plate (11), and the length of the guide groove (65) is adapted to the adjustment stroke of the moving plate (11).

6. The adjustable-size trench excavation movable plate support device according to claim 1, characterized in that: The sliding rod (42) and the fixed rod (12) are connected by a through hole that is compatible with the plug rod (51), and the pin (52) is set perpendicular to the plug rod (51).

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