Temporary supporting mechanism for road drainage construction

Abstract

The invention relates to the technical field of supporting mechanisms, in particular to a temporary supporting mechanism for road drainage construction, which comprises a plurality of supporting units which are sequentially arranged in a groove. The supporting unit comprises a first supporting plate and a second supporting plate, first side plates are arranged at the two ends of the first supporting plate, second side plates are arranged at the two ends of the second supporting plate, and the size of the first supporting plate is larger than that of the second supporting plate. And the first side plate and the second side plate are obliquely arranged. According to the temporary supporting mechanism for road drainage construction, the multiple supporting units are arranged to be matched, in every two adjacent supporting units, the first side plate of one supporting unit abuts against the second side plate of the other adjacent supporting unit, overload of the single supporting unit is avoided, and the supporting efficiency is improved. The reliability of the supporting mechanism is improved, and the service life of the supporting mechanism is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of supporting mechanism, in particular to a temporary supporting mechanism for road drainage construction. BACKGROUND

[0002] In road engineering construction, the drainage system construction needs to excavate a trench, and since the soil on both sides of the trench loses the original balance after excavation, collapse is likely to occur due to the self-weight of the soil, groundwater seepage or external load, which not only affects the construction safety, but also may cause deformation of the trench, displacement of the pipeline, delay of the construction period and increase of the repair cost. Therefore, the temporary support of the trench is a key guarantee process in the road drainage construction, which plays a role in restraining the soil on the side wall of the trench through the supporting structure to prevent collapse and maintain the stability of the trench section.

[0003] However, the existing multiple supporting units are independent of each other after being installed in the trench, cannot share the stress with each other, are prone to bending and tilting due to overload, and thus lead to supporting failure, so it is difficult to form a stable supporting system with overall stress, and it is difficult to meet the requirements of supporting reliability under complex geological conditions in road drainage construction. SUMMARY

[0004] The present application provides a temporary supporting mechanism for road drainage construction to solve the problem that the existing multiple supporting units are independent of each other, cannot share the stress with each other, are prone to bending and tilting due to overload, and thus lead to supporting failure.

[0005] The temporary supporting mechanism for road drainage construction of the present application adopts the following technical scheme: a temporary supporting mechanism for road drainage construction is used for supporting a trench, the trench extends along a horizontal direction, the extension direction of the trench is referred to as a first direction, and the temporary supporting mechanism comprises multiple supporting units, the multiple supporting units are arranged in the trench along the first direction in sequence, and every two supporting units arranged adjacent to each other in the first direction can be arranged in a central symmetry; the supporting unit comprises a first supporting plate and a second supporting plate, the first supporting plate and the second supporting plate are arranged side by side in a second direction, the second direction is a horizontal direction perpendicular to the first direction, both ends of the first supporting plate in the first direction are provided with a first side plate, both ends of the second supporting plate in the first direction are provided with a second side plate, and the size of the first supporting plate in the first direction is greater than the size of the second supporting plate in the first direction; the first side plate and the second side plate are arranged obliquely and face each other in the second direction, and the first side plate and the second side plate located on the same side in the first direction are coplanar; the first side plate of one of the supporting units can abut against the second side plate of another supporting unit arranged adjacent to it in the first direction; a first supporting member and a second supporting member are arranged between the first supporting plate and the second supporting plate, the first supporting member and the second supporting member are arranged in sequence in the first direction, and the first supporting member and the second supporting member can move closer to or farther away from each other in the first direction.

[0006] Further, the first support member comprises two first supporting arms, the two first supporting arms are arranged side by side in the vertical direction and are both arranged along the second direction; two ends of the first supporting arm are respectively slidably connected with the first supporting plate and the second supporting plate; the second support member comprises two second supporting arms, the two second supporting arms are arranged side by side in the vertical direction and are both arranged along the second direction; two ends of the second supporting arm are respectively slidably connected with the first supporting plate and the second supporting plate.

[0007] Further, two ends of the first supporting arm in the second direction are respectively referred to as a first end and a second end, the first end of the two first supporting arms is installed on the first supporting plate through a first sliding plate, and the first end of the first supporting arm is rotatably installed on the first sliding plate along the first direction, the first sliding plate is slidably arranged on the first supporting plate along the first direction; the second end of the two first supporting arms is installed on the second supporting plate through a second sliding plate, and the second end of the first supporting arm is rotatably installed on the second sliding plate along the first direction, the second sliding plate is slidably arranged on the second supporting plate along the first direction; two ends of the second supporting arm in the second direction are respectively referred to as a third end and a fourth end, the third end of the two second supporting arms is installed on the first supporting plate through a third sliding plate, and the third end of the second supporting arm is rotatably installed on the third sliding plate along the first direction, the third sliding plate is slidably arranged on the first supporting plate along the first direction; the fourth end of the two second supporting arms is installed on the second supporting plate through a fourth sliding plate, and the fourth end of the second supporting arm is rotatably installed on the fourth sliding plate along the first direction, the fourth sliding plate is slidably arranged on the second supporting plate along the first direction.

[0008] Further, the first sliding plate, the second sliding plate, the third sliding plate and the fourth sliding plate are all provided with bolts, the first supporting plate and the second supporting plate are both provided with sliding rails for slidably connecting with the heads of the bolts, the sliding rails are arranged along the first direction, and nuts are rotatably arranged on the bolts.

[0009] Further, the first supporting arm and the second supporting arm are both arranged in an extendable and retractable manner in the second direction.

[0010] Further, the first supporting arm comprises a threaded cylinder and two supporting rods, the threaded cylinder and the two supporting rods are both arranged along the second direction, the two supporting rods are respectively located on two sides of the threaded cylinder in the second direction and are threadedly connected with the threaded cylinder, and when the threaded cylinder rotates around its own axis, the two supporting rods can move closer to or farther away from each other in the second direction.

[0011] Further, the two supporting rods are both provided with threaded segments, the screw directions of the threaded segments on the two supporting rods are opposite; the inner circumferential wall surface of the supporting cylinder is provided with two matching segments, the matching segments are one-to-one correspondingly arranged with the threaded segments, and the matching segments can be rotatably connected with the corresponding threaded segments.

[0012] Further, the first supporting plate and the second supporting plate are connected with a rotating disc through a locking piece, the central axis of the rotating disc is arranged along the second direction, and the rotating disc is arranged to be rotatable around its own axis; the rotating disc is provided with a guide strip on the end face away from the first supporting arm in the second direction; the guide strip is arranged to be inclined relative to the vertical direction in the initial state; the locking piece has an unlocked state and a locked state; when in the unlocked state, the locking piece allows the rotating disc to rotate around its own axis; when in the locked state, the locking piece limits the rotating disc from rotating around its own axis.

[0013] Further, the locking piece comprises a locking plate, the locking plate is mounted on the first supporting plate and the second supporting plate through a first elastic piece, and the first elastic piece is arranged along the first direction; the locking plate can slide relative to the first supporting plate or the second supporting plate in the first direction, and in the initial state, the locking plate extends out of the first side plate on the first supporting plate and the second side plate on the second supporting plate along the first direction; the rotating disc is provided with a clamping groove on the end face close to the first supporting arm in the second direction, the clamping groove is coaxially arranged with the rotating disc, and the locking plate is provided with a clamping plate at one end close to the clamping groove in the first direction, the clamping plate is arranged perpendicularly to the locking plate, and in the initial state, the first elastic piece makes the clamping plate clamped with the outer wall surface of the clamping groove.

[0014] Further, the rotating disc is provided with a rotating column, the first supporting plate and the second supporting plate are provided with through holes, the rotating column passes through the through holes along the second direction, and the rotating column is inserted with a locking pin.

[0015] The beneficial effects of the present application are that the temporary supporting mechanism for road drainage construction of the present application is provided with multiple supporting units, in the two supporting units arranged adjacently, the first side plate of one of the supporting units abuts against the second side plate of another supporting unit arranged adjacently in the first direction, the multiple supporting units are cooperatively stressed, the single supporting unit is prevented from being overloaded, the first side plate and the second side plate have the function of reinforcing ribs, the anti-deformation capability of the first supporting plate and the second supporting plate is directly enhanced, the reliability of the supporting mechanism is improved, and the service life of the supporting mechanism is prolonged.

[0016] Further, when the supporting unit is installed in the groove, the first supporting piece and the second supporting piece can be caused to move away from each other in the first direction to avoid the pipeline, the pipeline can be smoothly lowered, and after the lowering of the pipeline is completed, the first supporting piece and the second supporting piece can be caused to move close to each other in the first direction to reset, without affecting the normal supporting of the first supporting piece and the second supporting piece. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0018] Figure 1 A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 2 A top view of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 3 A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 2 An enlarged view of A in FIG. 4; Figure 4 A schematic diagram of a single supporting unit of an embodiment of the temporary supporting mechanism for road drainage construction; Figure 5 A side view of a single supporting unit of an embodiment of the temporary supporting mechanism for road drainage construction; Figure 6 A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 5 A sectional view along B-B in FIG. 5; A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 7 An enlarged view of C in FIG. 5; Figure 6 A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; A split diagram of a single supporting unit of an embodiment of the temporary supporting mechanism for road drainage construction; Figure 8 An enlarged view of D in FIG. 6; A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 9 A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 8 An enlarged view of E in FIG. 7; Figure 10 A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 11 A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 12 A state diagram of a plurality of supporting units of an embodiment of the temporary supporting mechanism for road drainage construction arranged in sequence; Figure 11 An enlarged view of E in FIG. 7;

[0019] In the figure: 100, supporting unit; 110, first supporting plate; 111, first side plate; 112, through hole; 120, second supporting plate; 121, second side plate; 130, first supporting piece; 131, first supporting arm; 132, threaded cylinder; 133, supporting rod; 134, rotating block; 140, second supporting piece; 141, second supporting arm; 150, first sliding plate; 160, second sliding plate; 170, third sliding plate; 180, fourth sliding plate; 190, bolt; 191, nut; 200, sliding rail; 300, rotating disc; 310, guide bar; 320, clamping groove; 330, rotating column; 340, locking pin; 400, locking plate; 410, first elastic piece; 420, clamping plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0021] An embodiment of the temporary supporting mechanism for road drainage construction according to the present application is shown in Figures 1 to 12 .

[0022] A temporary supporting mechanism for road drainage construction is used for supporting a trench, the trench extends along a horizontal direction, the extension direction of the trench is referred to as a first direction, and the temporary supporting mechanism comprises a plurality of supporting units 100, the plurality of supporting units 100 are sequentially arranged along the first direction in the trench, and every two supporting units 100 arranged adjacently in the first direction can be arranged in a central symmetry or sequentially arranged.

[0023] The support unit 100 includes a first support plate 110 and a second support plate 120, which are arranged side by side in a second direction. The second direction is horizontal and perpendicular to the first direction. The first support plate 110 has a first side plate 111 at both ends in the first direction, and the second support plate 120 has a second side plate 121 at both ends in the first direction. The first support plate 110 is larger than the second support plate 120 in the first direction. The first side plate 111 and the second side plate 121 are both inclined and face each other in the second direction, and the first side plate 111 and the second side plate 121 on the same side in the first direction are coplanar. The first side plate 111 of one support unit 100 can abut against the second side plate 121 of another support unit 100 adjacent to it in the first direction. A first support member 130 and a second support member 140 are provided between the first support plate 110 and the second support plate 120. The first support member 130 and the second support member 140 are arranged sequentially in the first direction, and the first support member 130 and the second support member 140 can move closer to each other or further away from each other in the first direction.

[0024] This embodiment uses multiple support units 100 working together, see [link / reference] Figure 2 As shown, during use, multiple support units 100 are placed sequentially in the trench along the first direction, such that every two adjacent support units 100 in the first direction are arranged in a centrally symmetrical manner, and the first side plate 111 of one support unit 100 abuts against the second side plate 121 of another support unit 100 adjacent to it in the first direction, forming a continuous trench support system.

[0025] By setting a first side plate 111 on the first support plate 110 and a second side plate 121 on the second support plate 120, it is equivalent to setting reinforcing ribs on the first support plate 110 and the second support plate 120, thereby increasing the support strength of the first support plate 110 and the second support plate 120. Furthermore, by tilting the first side plate 111 and the second side plate 121, and making them coplanar on the same side in the first direction, when the first side plate 111 of one support unit 100 comes into contact with the second side plate 121 of another support unit 100 adjacent to it in the first direction, the first side plate 111 can fit tightly against the adjacent second side plate 121. When one support unit 100 is subjected to pressure from the lateral soil, the support unit 100 can transfer the force to the other support unit 100 adjacent to it through the component force of the first side plate 111 in the first direction or the component force of the second side plate 121 in the first direction. This enables multiple support units 100 to work together to bear the force, avoids overloading of a single support unit 100, and extends the service life of the support mechanism.

[0026] And after the supporting unit 100 is installed in the trench, when the pipeline is subsequently lowered, the first support 130 and the second support 140 can be caused to move away from each other in the first direction to avoid the pipeline, so that the pipeline can be smoothly lowered, and after the pipeline is lowered, the first support 130 and the second support 140 are reset to move close to each other in the first direction, which does not affect the normal support of the first support 130 and the second support 140.

[0027] Referring to Figure 10 As shown in the drawings, and because the size of the first side plate 111 in the first direction is greater than the size of the second side plate 121 in the first direction, for the curved part in the trench, by sequentially arranging one of the supporting units 100 and another supporting unit 100 arranged adjacent to it in the first direction at the curved part, and by making the first side plate 111 of one of the supporting units 100 abut against the first side plate 111 of another supporting unit 100 arranged adjacent to it in the first direction, and making the second side plate 121 of one of the supporting units 100 abut against the second side plate 121 of another supporting unit 100 arranged adjacent to it in the first direction, by changing the arrangement of the supporting unit 100, it can be adapted to the curved part in the trench within a certain range, and the use range of the supporting unit 100 is improved.

[0028] In further embodiments, the first support 130 includes two first support arms 131, and the two first support arms 131 are arranged side by side in the vertical direction and are both arranged in the second direction. The two ends of the first support arm 131 are respectively slidably connected with the first support plate 110 and the second support plate 120. The second support 140 includes two second support arms 141, and the two second support arms 141 are arranged side by side in the vertical direction and are both arranged in the second direction. The two ends of the second support arm 141 are respectively slidably connected with the first support plate 110 and the second support plate 120.

[0029] Among them, the two ends of the first support arm 131 in the second direction are respectively referred to as the first end and the second end, the first end of the two first support arms 131 is installed on the first support plate 110 through the first sliding plate 150, and the first end of the first support arm 131 is rotatably installed on the first sliding plate 150, and the first sliding plate 150 is slidably arranged on the first support plate 110 in the first direction. The second end of the two first support arms 131 is installed on the second support plate 120 through the second sliding plate 160, and the second end of the first support arm 131 is rotatably installed on the second sliding plate 160, and the second sliding plate 160 is slidably arranged on the second support plate 120 in the first direction.

[0030] The two ends of the second branch arm 141 in the second direction are respectively referred to as a third end and a fourth end, the third end of each of the two second branch arms 141 is installed on the first support plate 110 through a third sliding plate 170, and the third end of the second branch arm 141 is rotatably installed on the third sliding plate 170, and the third sliding plate 170 is slidably arranged on the first support plate 110 in the first direction. The fourth end of each of the two second branch arms 141 is installed on the second support plate 120 through a fourth sliding plate 180, and the fourth end of the second branch arm 141 is rotatably installed on the fourth sliding plate 180, and the fourth sliding plate 180 is slidably arranged on the second support plate 120 in the first direction.

[0031] Specifically, the first sliding plate 150, the second sliding plate 160, the third sliding plate 170 and the fourth sliding plate 180 are each provided with a bolt 190, the first support plate 110 and the second support plate 120 are each provided with a sliding rail 200 for slidingly cooperating with the head of the bolt 190, the sliding rail 200 is arranged in the first direction, and the bolt 190 is rotatably provided with a nut 191.

[0032] The first end of the first branch arm 131, the second end of the first branch arm 131, the third end of the second branch arm 141 and the fourth end of the second branch arm 141 are each provided with a rotating block 134, the rotating block 134 located on the first end of the first branch arm 131 is in rotational cooperation with the first sliding plate 150, the rotating block 134 located on the second end of the first branch arm 131 is in rotational cooperation with the second sliding plate 160, the rotating block 134 located on the third end of the second branch arm 141 is in rotational cooperation with the third sliding plate 170, and the rotating block 134 located on the fourth end of the second branch arm 141 is in rotational cooperation with the fourth sliding plate 180.

[0033] When the support unit 100 is installed in the trench, when the pipeline is subsequently lowered, the nut 191 is first unlocked from the bolt 190, and the first sliding plate 150 and the second sliding plate 160 connected to the two first branch arms 131 are manually operated to slide in the first direction, and the third sliding plate 170 and the fourth sliding plate 180 connected to the two second branch arms 141 are manually operated to slide in the first direction, so as to avoid the pipeline, so that the pipeline can be smoothly lowered. After the pipeline is lowered, the first sliding plate 150 and the second sliding plate 160 connected to the two first branch arms 131 are slid in the first direction to reset, the bolt 190 is locked by the nut 191, the third sliding plate 170 and the fourth sliding plate 180 connected to the two second branch arms 141 are slid in the first direction to reset, and the bolt 190 is locked by the nut 191, so that the first sliding plate 150, the second sliding plate 160, the third sliding plate 170 and the fourth sliding plate 180 are locked.

[0034] In further embodiments, the first branch arm 131 and the second branch arm 141 are each slidably arranged in the second direction.

[0035] The first support arm 131 includes a threaded cylinder 132 and two support rods 133. The threaded cylinder 132 and the two support rods 133 are both arranged along the second direction. The two support rods 133 are located on both sides of the threaded cylinder 132 in the second direction and are screwed to the threaded cylinder 132. When the threaded cylinder 132 rotates around its own axis, the two support rods 133 can move closer to each other or further away from each other in the second direction.

[0036] Specifically, both support rods 133 are provided with threaded sections, and the helical directions of the threaded sections on the two support rods 133 are opposite. Two mating sections are provided on the inner circumferential wall of the support cylinder, and the mating sections are provided in a one-to-one correspondence with the threaded sections, and the mating sections can rotate and engage with their corresponding threaded sections.

[0037] In use, the dimensions of the first support arm 131 and the second support arm 141 in the second direction can be adjusted according to the width of the trench in the second direction to improve the adaptability of the support unit 100. See also... Figure 11 As shown, when encountering inconsistent trench widths, one or more support units 100 can be adjusted individually to further improve the working condition of the support mechanism. And when adjusting the dimension of one of the support units 100 in the second direction, see... Figure 11 and Figure 12 As shown, located Figure 12 The first side plate 111 on the first support plate 110 on the left side will be restricted by the second side plate 121 of another support unit 100 adjacent to it in the first direction during the movement, thereby causing the first support plate 110 to move downwards to make way while moving to the left, so that the first side plate 111 can abut against the second side plate 121. And located in Figure 11 The movement of the second support plate 120 on the right side is not restricted by the first side plate 111 of the other support unit 100 adjacent to it in the first direction. Consequently, after movement, in the adjusted support unit 100, the first support plate 110 will move further relative to the second support plate 120 in the first direction by a certain distance. However, since both the first support arm 131 and the second support arm 141 can slide relative to the first support plate 110 in the first direction, even if the first support plate 110 moves further relative to the second support plate 120 in the first direction, the first support arm 131 and the second support arm 141 will not tilt and will not affect normal support work.

[0038] In a further embodiment, the first support plate 110 and the second support plate 120 are each connected with a rotating disc 300 through a locking member, the central axis of the rotating disc 300 is arranged along the second direction, and the rotating disc 300 is arranged to be rotatable around its own axis. The rotating disc 300 is provided with a guide strip 310 on the end face away from the first support arm 131 in the second direction. The guide strip 310 is arranged to be inclined relative to the vertical direction in the initial state. The locking member has an unlocked state and a locked state. In the unlocked state, the locking member allows the rotating disc 300 to rotate around its own axis, and in the locked state, the locking member restricts the rotating disc 300 from rotating around its own axis.

[0039] The locking member includes a locking plate 400 mounted on the first support plate 110 and the second support plate 120 through a first elastic member 410 arranged along the first direction, the first elastic member 410 is a spring, the locking plate 400 can slide relative to the first support plate 110 or the second support plate 120 in the first direction, and in the initial state, the locking plate 400 extends out of the first side plate 111 on the first support plate 110 and the second side plate 121 on the second support plate 120 along the first direction. The rotating disc 300 is provided with a clamping groove 320 on the end face close to the first support arm 131 in the second direction, the clamping groove 320 is coaxially arranged with the rotating disc 300, the locking plate 400 is provided with a clamping plate 420 close to one end of the clamping groove 320 in the first direction, the clamping plate 420 is arranged perpendicular to the locking plate 400, so that the locking plate 400 and the clamping plate 420 form an L-shaped structure. In the initial state, the first elastic member 410 makes the clamping plate 420 clamped with the outer wall surface of the clamping groove 320.

[0040] Specifically, the rotating disc 300 is coaxially and fixedly connected with a rotating column 330, the first support plate 110 and the second support plate 120 are each provided with a through hole 112, the rotating column 330 passes through the through hole 112 along the second direction, and the rotating column 330 is inserted with a locking pin 340 for restricting the rotating column 330 from being separated from the first support plate 110 and the second support plate 120.

[0041] In the initial state, the locking plate 400 extends out of the first side plate 111 of the first support plate 110 and the second side plate 121 of the second support plate 120 in the first direction, and at this time, the clamping plate 420 is clamped with the outer wall surface of the clamping groove 320 under the action of the first elastic member 410, that is, the rotation of the rotating disc 300 is limited by the locking plate 400, and the locking member is in the locked state. When two adjacent support units 100 are installed, the first side plate 111 of one support unit 100 and the second side plate 121 of the other support unit 100 arranged adjacent to it in the first direction abut each other, the locking plate 400 is pushed to move in the first direction and gradually retract into the first support plate 110 or the second support plate 120, and the clamping plate 420 is pushed to move to the side close to the center of the rotating disc 300, so that the clamping plate 420 is located in the clamping groove 320 but is separated from the outer wall surface of the clamping groove 320, and the locking member is in the unlocked state.

[0042] After the support unit 100 is continuously lowered into the trench, the soil on the side wall of the trench will generate an upward force on the guide strip 310, and the component of the force in the first direction will promote the guide strip 310 and the first support plate 110 or the second support plate 120 to move in the first direction to the side of the other support unit 100 arranged adjacent to it, and assist the abutment of the first side plate 111 and the second side plate 121 arranged adjacent to each other in the first direction, until the guide strip 310 is rotated to the vertical state.

[0043] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A temporary support mechanism for road drainage construction, used to support a ditch extending horizontally, wherein the direction of extension of the ditch is referred to as the first direction, characterized in that: The system includes multiple support units arranged sequentially along a first direction within a trench, with each pair of adjacent support units arranged in the first direction being centrally symmetrical. Each support unit includes a first support plate and a second support plate, arranged side-by-side in a second direction, which is horizontal and perpendicular to the first direction. The first support plate has a first side plate at both ends in the first direction, and the second support plate has a second side plate at both ends in the first direction. The first support plate is larger than the second support plate in the first direction. The first and second side plates are inclined and face each other in the second direction, and the first and second side plates on the same side in the first direction are coplanar. The first side plate of one support unit can abut against the second side plate of another support unit adjacent to it in the first direction. A first support member and a second support member are provided between the first and second support plates, arranged sequentially in the first direction, and the first and second support members can move closer to or further away from each other in the first direction.

2. The temporary support structure for road drainage construction according to claim 1, characterized in that: The first support member includes two first arms, which are arranged side by side in the vertical direction and both are arranged along the second direction; the two ends of the first arms are slidably engaged with the first support plate and the second support plate, respectively; the second support member includes two second arms, which are arranged side by side in the vertical direction and both are arranged along the second direction; the two ends of the second arms are slidably engaged with the first support plate and the second support plate, respectively.

3. A temporary support structure for road drainage construction according to claim 2, characterized in that: The two ends of the first arm in the second direction are respectively referred to as the first end and the second end. The first ends of both first arms are mounted on the first support plate via a first sliding plate, and the first ends of the first arms are rotatably mounted on the first sliding plate around the first direction. The first sliding plate is slidably disposed on the first support plate along the first direction. The second ends of both first arms are mounted on the second support plate via a second sliding plate, and the second ends of the first arms are rotatably mounted on the second sliding plate around the first direction. The second sliding plate is slidably disposed on the second support plate along the first direction. The two ends of the second arm in the second direction are respectively referred to as the third end and the fourth end. The third ends of both second arms are mounted on the first support plate via a third sliding plate, and the third ends of the second arms are rotatably mounted on the third sliding plate around the first direction. The third sliding plate is slidably disposed on the first support plate along the first direction. The fourth ends of both second arms are mounted on the second support plate via a fourth sliding plate, and the fourth ends of the second arms are rotatably mounted on the fourth sliding plate around the first direction. The fourth sliding plate is slidably disposed on the second support plate along the first direction.

4. A temporary support structure for road drainage construction according to claim 3, characterized in that: Bolts are provided on the first, second, third, and fourth slide plates. Slide rails for sliding engagement with the bolt heads are provided on the first and second support plates. The slide rails are arranged along the first direction. Nuts are rotatably provided on the bolts.

5. A temporary support structure for road drainage construction according to claim 2, characterized in that: Both the first and second arms can be telescopically extended in the second direction.

6. A temporary support structure for road drainage construction according to claim 5, characterized in that: The first support arm includes a threaded cylinder and two support rods; both the threaded cylinder and the two support rods are arranged along the second direction, and the two support rods are located on both sides of the threaded cylinder in the second direction and are screwed to the threaded cylinder. When the threaded cylinder rotates around its own axis, the two support rods can move closer to each other or further away from each other in the second direction.

7. A temporary support structure for road drainage construction according to claim 6, characterized in that: Both support rods are equipped with threaded sections, and the helical directions of the threaded sections on the two support rods are opposite. Two mating sections are provided on the inner circumferential wall of the support cylinder. The mating sections are provided in a one-to-one correspondence with the threaded sections, and the mating sections can rotate and engage with their corresponding threaded sections.

8. A temporary support structure for road drainage construction according to claim 2, characterized in that: Both the first and second support plates are connected to a turntable via a locking element. The central axis of the turntable is set along the second direction, and the turntable is rotatable around its own axis. A guide strip is provided on the end face of the turntable away from the first support arm in the second direction. In the initial state, the guide strip is inclined relative to the vertical direction. The locking element has an unlocked state and a locked state. When it is in the unlocked state, the locking element allows the turntable to rotate around its own axis. When it is in the locked state, the locking element restricts the turntable from rotating around its own axis.

9. A temporary support structure for road drainage construction according to claim 8, characterized in that: The locking component includes a locking plate, which is mounted on a first support plate and a second support plate via a first elastic member. The first elastic member is arranged along a first direction. The locking plate is slidable relative to the first support plate or the second support plate in the first direction. In the initial state, the locking plate extends out of the first side plate on the first support plate and the second side plate on the second support plate along the first direction. A slot is provided on the end face of the turntable near the first support arm in the second direction. The slot is coaxially arranged with the turntable. A locking plate is provided at the end of the locking plate near the slot in the first direction. The locking plate is perpendicular to the locking plate. In the initial state, the first elastic member causes the locking plate to engage with the outer wall surface where the slot is located.

10. A temporary support structure for road drainage construction according to claim 8, characterized in that: The turntable is equipped with a rotating column, and both the first and second support plates have through holes. The rotating column passes through the through holes in the second direction, and a locking pin is inserted into the rotating column.

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