A prefabricated modular trench support system that is beneficial to environmental protection

Abstract

The present invention discloses a prefabricated modular trench support system that is beneficial to environmental protection, which includes a guard plate, a bottom plate and a support rod, wherein the guard plates are provided in a plurality of pairs, each pair of the guard plates is arranged along the length direction of the trench, and the two guard plates of the same pair are respectively installed on both sides of the trench along the length direction; the bottom plate is installed at the bottom of the trench, and the two guard plates of each pair are respectively fixedly installed on both sides of the bottom plate along the length direction of the trench; an elastic waterproof strip is provided between two adjacent guard plates on the same side, and the support system further includes a first driving member for driving each elastic waterproof strip to deform and cling to the two adjacent guard plates; the support rods are provided in a plurality of pairs and can be retracted, and the two ends of the support rods are respectively fixedly connected to the two guard plates of the same pair. The present application has the effect of reducing the loss of earthwork caused by water infiltration from between the guard plates.

Description

Technical Field

[0001] The invention relates to the field of trench support, and in particular to a prefabricated modular trench support system which is beneficial to environmental protection. Background Art

[0002] The trench can be used as a drainage ditch for terrace construction, flood control, and water conservancy projects. Its function is to plan the discharge of rainwater, groundwater, mountain springs and other water sources to meet the needs of farmland irrigation and crop growth. At the same time, it can also effectively improve the drainage conditions in mountainous and plain areas, avoid the occurrence of floods and maintain the ecological balance. Usually, a support system is set up in the trench to improve the stability of the trench.

[0003] In the existing trench support system, two support plates are needed to support both sides of the trench to prevent water flow from dispersing the soil on both sides of the trench and causing the trench stability to be destroyed; first, modular guard plates will be prefabricated in the factory, and then the guard plates will be installed on the earth on both sides of the trench on site in turn, and then support rods will be used to connect and support the guard plates on both sides to achieve support for the trench.

[0004] With regard to the above-mentioned related technologies, when using grooves to guide water flow, water flow is easy to penetrate into the soil of the groove from between two adjacent prefabricated guard plates, which can easily cause soil loss under the action of water immersion, lubrication and impact, which is not conducive to environmental protection. Therefore, there is an urgent need for a structure that can reduce the penetration of water flow into the soil from between the guard plates. Summary of the invention

[0005] In order to reduce earth loss caused by water seeping in between guard plates, the present application provides a prefabricated modular trench support system that is beneficial to environmental protection.

[0006] The present application provides a prefabricated modular trench support system that is beneficial to environmental protection and adopts the following technical solutions:

[0007] A prefabricated modular trench support system that is beneficial to environmental protection, comprising a guard plate, a base plate and a support rod, wherein the guard plates are provided in a plurality of pairs, and the guard plates of each pair are arranged along the length direction of the trench, and the two guard plates of the same pair are respectively installed on both sides of the trench along the length direction; the base plate is installed at the bottom of the trench, and the two guard plates of each pair are respectively fixedly installed on both sides of the base plate along the length direction of the trench; an elastic waterproof strip is provided between two adjacent guard plates on the same side, and the support system further comprises a first driving member for driving each elastic waterproof strip to deform and fit tightly against the two adjacent guard plates; a plurality of support rods are provided and all can be telescopically arranged, and the two ends of the support rod are respectively fixedly connected to the two guard plates of the same pair.

[0008] By adopting the above technical scheme, after the bottom plate and the guard plate are respectively installed on the groove, the elastic waterproof strip is installed between two adjacent guard plates in the same row. At this time, the gap between the two guard plates is blocked by the elastic waterproof strip, thereby reducing the flow of water into the earth from the gap between the two guard plates when the groove guides the water flow, reducing the earth collapse and environmental damage caused by excessive water content in the earth, and at the same time, the relatively closed guard plate can better concentrate the water flow in the groove, thereby improving the groove's effect of guiding the water flow; secondly, a retractable support rod is used to support the guard plates on both sides. When the water flow causes impact and vibration to the guard plates, the elastic deformation of the support rod can effectively maintain stable support for the guard plates on both sides.

[0009] Preferably, each of the first driving members includes a driving plate, a driving rod and a pressure plate, and each of the driving plates is located between two adjacent guard plates in the same row, one side of the driving plate is rotatably mounted on a side of the guard plate located at the rear end along the water flow direction and close to the elastic waterproof strip, and the side of the driving plate away from the rotating connection is inclined in the length direction of the groove; the elastic waterproof strip is provided with a avoidance groove, and the driving rod is penetrated through the elastic waterproof strip through the avoidance groove and is slidably penetrated into the earth of the groove, and the one side of the driving plate away from the elastic waterproof strip is used to abut against the water flow, and the other side abuts against the driving rod; the pressure plate is located on the side of the elastic waterproof strip away from the earth, and the driving rod is fixedly penetrated through the pressure plate.

[0010] By adopting the above technical solution, when the groove starts to divert water, the water flows through the driving plate, thereby impacting the driving plate, driving the driving plate to rotate on the guard plate, and then driving the driving rod to slide in the direction of inserting into the earth. At this time, the driving rod drives the pressure plate to slide, and the pressure plate and the fixed earth work together to squeeze the elastic waterproof strip. After the elastic waterproof strip is deformed, it further adheres to the guard plates on both sides, thereby sealing the gap between two adjacent guard plates. This driving method does not require manual pressurization of the elastic waterproof strip. The elastic waterproof strip can be automatically squeezed after encountering water flow, and the greater the water flow rate, the stronger the power on the driving plate, the greater the pressure of the pressure plate on the elastic waterproof strip, and the better the sealing effect of the gap.

[0011] Preferably, the support rod includes a telescopic section and a plurality of splicing sections which are connected to each other, each of the splicing sections is provided with a threaded head at one end and a connecting hole at the other end, the splicing section is provided with an internal thread in the connecting hole, and the threaded head of one splicing section is threadedly connected to an adjacent splicing section through the connecting hole of the adjacent splicing section.

[0012] By adopting the above technical solution, workers can connect multiple splicing sections on site according to grooves of different sizes until the support rod reaches a predetermined length, thereby supporting the guard plates on both sides of the groove; the connection method of the support rod has a simple structure, which is conducive to rapid construction and accelerates the formation speed of the support system.

[0013] Preferably, a baffle is arranged in the groove in a direction perpendicular to the length of the groove, a plurality of water flow holes are opened on the baffle, plug plates are respectively arranged on both sides of the baffle along the length of the groove, the two plug plates are respectively slidably inserted in the same pair of two guard plates, and the support system also includes a second driving member for driving the baffle to slide in a direction perpendicular to the length of the groove.

[0014] By adopting the above technical solution, there are usually debris accumulated in the water flow. After the baffle is set, the debris is washed to the front of the baffle by the water flow. At this time, the baffle can block the debris, and the water flow continues to flow through the water hole. At this time, the worker can salvage the debris from in front of the baffle to reduce the impact of the accumulation of debris on the water flow; if the worker does not salvage and there are too many debris, the water hole may be blocked, and the water flow is difficult to pass through, resulting in the water level being too high to gush out of the groove. The second driving member drives the plug plate to slide, and then drives the baffle to slide in a direction perpendicular to the water flow, so that the water hole and the debris are dislocated, so that the water flow can continue to flow out of the water hole, reducing the obstruction of the water flow by debris and maintaining the normal use of the groove.

[0015] Preferably, the second driving member includes a waterwheel and a push rod, the waterwheel is rotatably installed in a vertical direction on a side of one of the guard plates close to the other guard plate of the same pair, and the rotating shaft of the waterwheel is penetrated into the guard plate; the push rod is slidably installed on the guard plate in a direction perpendicular to the length of the groove, and one end of the push rod close to the other guard plate of the same pair penetrates the guard plate and is connected to the plug plate inserted in the guard plate; a bevel gear set is provided at the end of the rotating shaft away from the waterwheel, the input shaft of the bevel gear set is fixedly connected to the rotating shaft, and the output shaft of the bevel gear set extends in the length direction of the groove, and the output shaft of the bevel gear set is provided with an eccentric wheel, and the eccentric shaft of the eccentric wheel is rotatably installed with a connecting rod, and the other end of the connecting rod is rotatably connected to the end of the push rod away from the plug plate.

[0016] By adopting the above technical solution, water flows through the waterwheel before passing through the baffle, thereby driving the waterwheel to rotate. The rotating shaft of the waterwheel drives the eccentric wheel to rotate after being driven by the bevel gear set, so that the eccentric wheel drives one end of the connecting rod to make a circular motion, and the other end of the connecting rod drives the push rod to make a reciprocating motion, driving the plug plate to slide in the guard plate, thereby driving the baffle as a whole to slide in the groove, thereby misaligning the baffle and the debris so that the water flow in the groove can pass through the water flow hole normally. This driving method uses water flow to drive the windmill and then drive the baffle to move, without the need for external driving parts and power supply. At the same time, the baffle can be driven to move when there is water flow, and the response speed is fast, which is conducive to the smooth flow of water.

[0017] Preferably, the guard plate is provided with a slot for the plugging plate to be inserted, and the guard plate is provided with a vibration member on the inner side wall of the slot for driving the plugging plate to vibrate.

[0018] By adopting the above technical solution, a vibrating member is installed in the slot so that the baffle can vibrate synchronously when sliding, thereby vibrating and displacing the debris on the baffle, thereby enhancing the water flow effect of the baffle.

[0019] Preferably, each guard plate installed with the baffle is provided with a dirt baffle, each dirt baffle is located at the rear end of the plug plate along the water flow direction, and the sliding distance of the plug plate is less than the length of the dirt baffle along the direction perpendicular to the length of the groove.

[0020] There may be tiny debris in the water flow. Under the long-term drive of the water flow, the tiny debris may accumulate in the slot, blocking the slot and thus hindering the movement of the plug plate. By adopting the above technical solution, after the dirt baffle is set, the slot is blocked, and at the same time, the plug plate is limited to not extend beyond the dirt baffle after the baffle slides, making it difficult for tiny debris to be filled into the dirt baffle with the water flow, further reducing the situation where tiny debris flows into the slot from the gap between the baffles.

[0021] Preferably, a guide surface is provided at the rear end of the dirt baffle along the water flow direction, and the guide surface is inclined toward the baffle along the fixed connection.

[0022] By adopting the above technical solution, under the action of the guide surface, the water flows toward the baffle, driving small debris away from the dirt baffle to flow to the baffle, reducing the situation where small debris enters the slot.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Rely on elastic waterproof strips to block the gap between the two guard plates, reduce the flow of water into the earth from the gap between the two guard plates when the groove guides the water flow, reduce the earthwork collapse and environmental damage caused by excessive water content in the earthwork, and at the same time, the relatively closed guard plate can better concentrate the water flow in the groove, improving the groove's guiding effect on the water flow;

[0025] 2. The pressure plate and the fixed earth work together to squeeze the elastic waterproof strip. After the elastic waterproof strip is deformed, it further clings to the guard plates on both sides, thereby blocking the gap between two adjacent guard plates. This driving method does not require manual pressurization of the elastic waterproof strip. It can automatically squeeze the elastic waterproof strip when encountering water flow. The greater the water flow rate, the stronger the power of the driving plate, the greater the pressure of the pressure plate on the elastic waterproof strip, and the better the sealing effect of the gap.

[0026] 3. The baffle slides as a whole in the groove, thereby displacing the baffle and the debris so that the water flow in the groove can pass through the water flow hole normally. This driving method uses the water flow to drive the windmill and then drive the baffle to move. No external driving parts and power supply are required. At the same time, the baffle can be driven to move when there is water flow. The response speed is fast, which is conducive to the smooth flow of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a prefabricated modular trench support system that is beneficial to environmental protection in the present application.

[0028] Figure 2 This is a top view of a guard plate of a prefabricated modular trench support system that is beneficial to environmental protection in the present application.

[0029] Figure 3 This is a schematic diagram of the second driving component structure of a prefabricated modular trench support system that is beneficial to environmental protection in the present application.

[0030] Figure 4 It is a side view of a prefabricated modular trench support system that is beneficial to environmental protection in the present application.

[0031] Description of reference numerals:

[0032] 1. Guard plate; 11. Slot; 12. Friction block; 2. Bottom plate; 3. Support rod; 31. Telescopic section; 32. Splicing section; 4. Elastic waterproof strip; 41. First driving member; 411. Driving plate; 412. Driving rod; 413. Pressing plate; 5. Baffle plate; 51. Insert plate; 6. Second driving member; 61. Waterwheel; 62. Push rod; 63. Bevel gear set; 64. Eccentric wheel; 65. Connecting rod; 7. Dirt baffle plate; 71. Guide surface. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4This application is described in further detail.

[0034] The present application embodiment discloses a prefabricated modular trench support system that is beneficial to environmental protection. Figure 1 The trench support system includes a guard plate 1, a bottom plate 2 and a support rod 3. The guard plates 1 are arranged in pairs. Each pair of guard plates 1 is arranged along the length direction of the trench. The two guard plates 1 of the same pair are respectively installed on both sides of the trench along the length direction; the bottom plate 2 is installed at the bottom of the trench, which can effectively reduce the scouring of the soil at the bottom of the trench by water flow, effectively reduce the soil and water loss in the trench, and protect the water and soil environment in the trench; the two guard plates 1 of each pair are respectively fixedly installed on the top of the bottom plate 2 and on both sides along the length direction of the trench; an elastic waterproof strip 4 is arranged between each adjacent two guard plates 1 on the same side; the support system also includes a device for driving each elastic waterproof strip 4 to change After the guard plates 1 are deformed, the first driving member 41 is tightly attached to the two adjacent guard plates 1; a plurality of support rods 3 are arranged and can be retracted, and the two ends of the support rods 3 are respectively fixedly connected to the two guard plates 1 of the same pair; after the guard plates 1 and the bottom plate 2 are installed, the workers install the elastic waterproof strip 4 between the two adjacent guard plates 1 on the same side. At this time, the elastic waterproof strip 4 can preliminarily block the gap between the two guard plates 1. When the water flow becomes larger, the first driving member 41 can be used to drive the elastic waterproof strip 4 to deform, and then further fit the guard plates 1 on both sides of the elastic waterproof strip 4, thereby reducing the gap there, and further preventing the water flow from infiltrating the earth from the gap there.

[0035] Reference Figure 1 and Figure 2 Each first driving member 41 includes a driving plate 411, a driving rod 412 and a pressing plate 413. The driving plate 411 of each first driving member 41 is located between two adjacent guard plates 1 in the same row. One side of the driving plate 411 is rotatably mounted on the side of the corresponding guard plate 1 located at the rear end along the water flow direction and close to the elastic waterproof strip 4. The side of the driving plate 411 away from the rotating connection is inclined in the groove length direction. The elastic waterproof strip 4 is provided with an avoidance groove, and the driving rod 412 is passed through the avoidance groove and is arranged on the elastic waterproof strip 4. In the earthwork that is slidably inserted into the groove, the side of the driving plate 411 away from the elastic waterproof strip 4 is used to abut against the water flow, and the other side abuts against the driving rod 412; the pressing plate 413 is located on the side of the elastic waterproof strip 4 away from the earthwork, and the driving rod 412 is fixedly inserted into the pressing plate 413; in this embodiment, the driving plate 411 is made of elastic material, has high friction and toughness, can withstand the impact of large water flow, and the high friction can make the driving plate 411 stably abut and drive the driving rod 412 to slide;

[0036] When the water flow impacts the driving plate 411, the driving plate 411 is driven to rotate on the guard plate 1, thereby pushing the driving rod 412 abutting against the driving plate 411 into the earth, thereby driving the pressure plate 413 to squeeze the elastic waterproof strip 4. The pressure plate 413 and the earth on the other side of the elastic waterproof strip 4 work together to squeeze the elastic waterproof strip 4 toward the guard plates 1 on both sides, thereby further enhancing the sealing between the guard plates 1 and the elastic waterproof strip 4, and reducing the situation where the water flows from between the two guard plates 1 to the earth.

[0037] Reference Figure 2 The support rod 3 includes a telescopic section 31 and a plurality of splicing sections 32 that are interconnected. Each splicing section 32 is provided with a threaded head at one end and a connecting hole at the other end. The splicing section 32 is provided with an internal thread in the connecting hole. The threaded head of one splicing section 32 is threadedly connected to the adjacent splicing section 32 through the connecting hole of the adjacent splicing section 32. Workers can use threaded connections to quickly splice the splicing sections 32 into a complete support rod 3. At the same time, different numbers of splicing sections 32 can be connected according to different groove widths until a predetermined length is reached, which is convenient for workers to quickly complete the construction of the groove support system.

[0038] Reference Figure 2 and Figure 3 A baffle 5 is arranged in the groove along a direction perpendicular to the length of the groove, and a plurality of water flow holes are opened on the baffle 5. Insert plates 51 are respectively arranged on both sides of the baffle 5 along the length of the groove. The two insert plates 51 of each baffle 5 are respectively slidably inserted in the same pair of two guard plates 1. The support system also includes a second driving member 6 for driving the baffle 5 to slide along a direction perpendicular to the length of the groove. After the second driving member 6 is used to drive the baffle 5 to slide, the baffle 5 can be dislocated from the debris pressed to the baffle 5 by the water flow, so that the water flow can flow out from the dislocated water flow holes after the reciprocating sliding, thereby reducing the impact on the daily effect of the groove.

[0039] The second driving member 6 includes a waterwheel 61 and a push rod 62. The waterwheel 61 is rotatably installed on one side of one of the guard plates 1 close to the other guard plate 1 of the same pair in the vertical direction, and the rotating shaft of the waterwheel 61 is penetrated into the guard plate 1; the push rod 62 is slidably installed on the guard plate 1 in a direction perpendicular to the length of the groove, and one end of the push rod 62 close to the other guard plate 1 of the same pair passes through the said guard plate 1 and is connected to the plug plate 51 inserted in the guard plate 1; a bevel gear set 63 is provided at the end of the rotating shaft away from the waterwheel 61, the input shaft of the bevel gear set 63 is fixedly connected to the rotating shaft, and the output shaft of the bevel gear set 63 faces the length of the groove. The output shaft of the bevel gear set 63 is provided with an eccentric wheel 64, and the eccentric shaft of the eccentric wheel 64 is rotatably installed with a connecting rod 65, which is extended in a direction perpendicular to the length of the groove, and the other end of the connecting rod 65 is rotatably connected to the end of the push rod 62 away from the plug plate 51; after the water pushes the waterwheel 61, the rotating shaft of the windmill is connected to the eccentric wheel 64 through the bevel gear set 63, and after the eccentric wheel 64 rotates, the connecting rod 65 is driven to do reciprocating motion and then drives the baffle 5 to do reciprocating motion in the groove, so that the baffle 5 and the debris are misaligned, so that water can pass through the water flow hole normally.

[0040] Reference Figure 2 and Figure 3 The guard plate 1 is provided with a slot 11 for inserting the plug plate 51, and the guard plate 1 is provided with a vibrating member on the inner side wall of the slot 11 for driving the plug plate 51 to vibrate; in this embodiment, the vibrating member is a friction block 12 fixedly installed in the slot 11, and the plug plate 51 located in the slot 11 is slidably abutted against the friction block 12. When the baffle 5 moves back and forth as a whole, the plug plate 51 rubs against the friction block 12, so that the plug plate 51 vibrates, and then the vibration is transmitted to the baffle 5, so that the debris on the surface of the baffle 5 is shaken off the surface of the baffle 5, so that the water flow can flow further smoothly.

[0041] Reference Figure 3 and Figure 4 Each guard plate 1 equipped with a baffle 5 is provided with a dirt baffle 7, and each dirt baffle 7 is located at the rear end of the plug plate 51 along the water flow direction, and the sliding distance of the plug plate 51 is less than the length of the dirt baffle 7 along the direction perpendicular to the groove length; the rear end of the dirt baffle 7 along the water flow direction is provided with a guide surface 71, and the guide surface 71 is inclined toward the baffle 5 along the fixed connection. After the water flow hits the baffle 5, small debris flows toward the center of the baffle 5 under the guiding action of the guide surface 71, thereby reducing the situation where small debris blocks the slot 11.

[0042] The implementation principle of the prefabricated modular trench support system that is beneficial to environmental protection in the embodiment of the present application is as follows: workers first place the bottom plate 2 at the bottom of the trench, then install the guard plate 1 and the elastic waterproof strip 4, and then assemble the support rods 3 of a predetermined length according to the length of the trench, and install the support rods 3 on the two guard plates 1 of each pair, so as to support and fix the guard plates 1; at this time, the support system can support the trench, and the trench can be used normally;

[0043] When there is water flow in the groove, the water flow impacts the driving plate 411, so that the pressing plate 413 is driven to squeeze the elastic waterproof strip 4 under the action of the driving rod 412, so that the elastic waterproof strip 4 is driven to deform and expand toward the direction of the guard plates 1 on both sides under the pressure of the earth, so as to further adhere to the guard plates 1 and block the gap between the two adjacent guard plates 1;

[0044] The baffle 5 in the groove blocks the debris in the water flow. At the same time, the water flow drives the baffle 5 to move horizontally in the groove through the second driving member 6. Under the action of the vibrating member, the baffle 5 vibrates to separate the debris from the surface of the baffle 5, thereby reducing the blocking effect of the debris on the water flow at the baffle 5.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A prefabricated modular trench support system that is beneficial to environmental protection, characterized in that: The invention comprises a guard plate (1), a bottom plate (2) and a support rod (3), wherein the guard plates (1) are arranged in a plurality of pairs, each pair of the guard plates (1) are arranged along the length direction of the groove, and the two guard plates (1) of the same pair are respectively mounted on both sides of the groove along the length direction; the bottom plate (2) is mounted at the bottom of the groove, and the two guard plates (1) of each pair are respectively fixedly mounted on both sides of the bottom plate (2) along the length direction of the groove; an elastic waterproof strip (4) is arranged between two adjacent guard plates (1) on the same side, and the support system further comprises a first driving member (41) for driving each elastic waterproof strip (4) to deform and closely adhere to the two adjacent guard plates (1); the support rods (3) are arranged in a plurality of pairs and can be retracted, and the two ends of the support rods (3) are respectively fixedly connected to the two guard plates (1) of the same pair, and each of the first driving members (41) comprises a driving plate (411), a driving member (412), a driving member (413), and a driving member (414). The invention relates to a driving plate (411) comprising a driving plate (412) and a pressure plate (413), each of which is located between two adjacent guard plates (1) in the same row. One side of the driving plate (411) is rotatably mounted on a side of the guard plate (1) located at the rear end along the water flow direction and close to the elastic waterproof strip (4). The side of the driving plate (411) away from the rotation connection is inclined in the length direction of the groove. The elastic waterproof strip (4) is provided with an avoidance groove. The driving rod (412) is inserted into the elastic waterproof strip (4) through the avoidance groove and is slidably inserted into the earth of the groove. The side of the driving plate (411) away from the elastic waterproof strip (4) is used to abut against the water flow, and the other side abuts against the driving rod (412). The pressure plate (413) is located on the side of the elastic waterproof strip (4) away from the earth. The driving rod (412) is fixedly inserted into the pressure plate (413).

2. The prefabricated modular trench support system beneficial to environmental protection according to claim 1, characterized in that: The support rod (3) comprises a telescopic section (31) and a plurality of splicing sections (32) which are connected to each other. Each of the splicing sections (32) is provided with a threaded head at one end and a connecting hole at the other end. The splicing sections (32) are provided with internal threads in the connecting holes. The threaded head of one splicing section (32) is threadedly connected to an adjacent splicing section (32) through the connecting hole of the adjacent splicing section (32).

3. The prefabricated modular trench support system beneficial to environmental protection according to claim 1, characterized in that: A baffle (5) is arranged in the groove along a direction perpendicular to the length of the groove, and a plurality of water flow holes are opened on the baffle (5). Insertion plates (51) are respectively arranged on both sides of the baffle (5) along the length of the groove, and the two insertion plates (51) are respectively inserted in a sliding manner on the same pair of two guard plates (1). The support system also includes a second driving member (6) for driving the baffle (5) to slide along a direction perpendicular to the length of the groove.

4. The prefabricated modular trench support system beneficial to environmental protection according to claim 3, characterized in that: The second driving member (6) comprises a water wheel (61) and a push rod (62); the water wheel (61) is rotatably mounted on one side of one of the guard plates (1) close to the other guard plate (1) of the same pair in a vertical direction, and the rotating shaft of the water wheel (61) is penetrated into the guard plate (1); the push rod (62) is slidably mounted on the guard plate (1) in a direction perpendicular to the length of the groove, and one end of the push rod (62) close to the other guard plate (1) of the same pair passes through the guard plate (1) and is connected to a push rod (62) inserted into the guard plate (1). The plug plate (51) is provided with a bevel gear set (63) at one end of the rotating shaft away from the water wheel (61), the input shaft of the bevel gear set (63) is fixedly connected to the rotating shaft, the output shaft of the bevel gear set (63) extends in the length direction of the groove, the output shaft of the bevel gear set (63) is provided with an eccentric wheel (64), the eccentric shaft of the eccentric wheel (64) is rotatably mounted with a connecting rod (65), and the other end of the connecting rod (65) is rotatably connected to one end of the push rod (62) away from the plug plate (51).

5. The prefabricated modular trench support system beneficial to environmental protection according to claim 3, characterized in that: The guard plate (1) is provided with a slot (11) for the plug plate (51) to be inserted, and the guard plate (1) is provided with a vibration member on the inner side wall of the slot (11) for driving the plug plate (51) to vibrate.

6. The prefabricated modular trench support system beneficial to environmental protection according to claim 4, characterized in that: Each of the guard plates (1) equipped with the baffle plates (5) is provided with a dirt baffle plate (7), and each of the dirt baffle plates (7) is located at the rear end of the plug plate (51) along the water flow direction, and the sliding distance of the plug plate (51) is less than the length of the dirt baffle plate (7) along the direction perpendicular to the length of the groove.

7. The prefabricated modular trench support system beneficial to environmental protection according to claim 6, characterized in that: A guide surface (71) is provided at the rear end of the dirt baffle (7) along the water flow direction, and the guide surface (71) is arranged obliquely toward the baffle (5) along the fixed connection.

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