Civil engineering foundation pit building and reinforcing equipment

Abstract

The invention discloses civil engineering foundation pit construction reinforcing equipment, and belongs to the field of engineering foundation pit reinforcing, a supporting mechanism is arranged between multiple sets of foundation pit wall plates, the supporting mechanism comprises two main plates which are symmetrically arranged at intervals, guide grooves are symmetrically formed in the two sides of the inner side face of each main plate, and the interiors of the guide grooves in the two sides are rotationally connected with driving screw rods; the driving screws on the two sides are opposite in thread rotating direction, the driving screws on the two sides are symmetrically connected with driving blocks in a threaded mode, the upper ends and the lower ends of the driving blocks are connected with supporting rods, the ends, away from the main plates, of the supporting rods are fixedly connected with mounting blocks, and adjusting assemblies are arranged between the mounting blocks on the main plates on the two sides of the same height. And the mounting block is connected and matched with a supporting assembly. According to the equipment, the front pressing plates and the side pressing plates of the main plates on the two sides are matched with each other, four supporting points are formed on the foundation pit wall plates arranged on the front side and the rear side of the foundation pit, stress of the foundation pit wall plates in the working process is more uniform, and the foundation pit wall plates are stably supported.

Description

Technical Field

[0001] The invention belongs to engineering foundation pit reinforcement technology, and in particular relates to a civil engineering foundation pit construction reinforcement device. Background Art

[0002] The engineering foundation pit is a soil pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. During the opening of the foundation pit, as the excavation depth continues to increase, more water will seep out from the side walls, affecting the construction of the foundation pit. Continuous excavation at a greater depth will lead to landslide accidents, and the foundation pit needs to be reinforced.

[0003] At present, the side reinforcement method of the foundation pit is mostly to set steel plates on the inner wall of the foundation pit, and then install steel columns to support the side walls of the steel plates on the foundation pit. This reinforcement method is inconvenient to install and requires a lot of human resources and costs. In addition, when the foundation pit steel plate is supported by steel columns, the support points formed by the connection between the steel plate and the steel column are subjected to greater force. When the pressure on the support points is too large, the uneven force on the steel plates will cause the support of the steel plates and steel columns to tilt, affecting the support reinforcement of the foundation pit.

[0004] The Chinese invention patent with the announcement number CN115467337B discloses a civil engineering foundation pit construction reinforcement device and reinforcement method, including foundation pit panels, the foundation pit panels are arranged in a foundation pit opened on the ground, a reinforcement mechanism is arranged between the foundation pit panels, the reinforcement mechanism includes a driving assembly, and support assemblies are arranged on both sides of the driving assembly. The support assembly includes a support plate, and pressure plates for squeezing the foundation pit panels and making them fit on the foundation pit are installed at both ends of the support plate. When the two pressure plates are in relative motion and the ends are in contact, a large supporting force is exerted on the foundation pit panels, and multiple supporting points are formed between the pressure plates and between the pressure plates and the support plates. Two limiting blocks are installed on the pressure plate, and the limiting blocks are driven by a driving mechanism. When the limiting blocks extend outward, the foundation pit panels are squeezed, and the angle of the supporting point at the end of the pressure plate is forced to change when the limiting blocks move. The limiting blocks guide the force on the connection point between the pressure plate and the foundation pit panels, and disperse the pressure borne by the pressure plate. The patented technology has the following technical problems in actual use: (1) When the pressure plates on both sides are rotated close to each other until the ends are in contact, a triangular shape is formed with the cooperation of the support plate. However, the contact area with the steel plate itself is small, which is consistent with the support method of the prior art by abutting the steel column. Both use single-point support, which easily leads to uneven overall support force of the steel plate, which will affect the support and reinforcement of the foundation pit; (2) When the steel plate of the side wall of the foundation pit is butted and supported by related structures, the space occupied by the related structures is relatively large, which will separate the upper and lower parts of the foundation pit, making it inconvenient to continue the deep excavation of the foundation pit. Summary of the invention

[0005] The purpose of the present invention is to provide a civil engineering foundation pit construction reinforcement equipment to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme: A civil engineering foundation pit construction reinforcement equipment, comprising a plurality of groups of foundation pit wall panels attached to the inner wall of the foundation pit, a support mechanism is arranged between the plurality of groups of foundation pit wall panels, the support mechanism is used to stably support the foundation pit wall panels attached to the inner wall of the foundation pit; the support mechanism comprises two main boards symmetrically arranged at intervals, guide grooves are symmetrically provided on both sides of the inner side surface of each main board, the insides of the guide grooves on both sides are rotatably connected to drive screws, the threads on the drive screws on both sides are arranged in opposite directions, the drive screws on both sides are symmetrically threadedly connected to drive blocks, the upper and lower ends of the drive blocks are connected to support rods, the end of the support rod away from the main board is fixedly connected to the mounting block, an adjustment component is arranged between the mounting blocks on the main boards on both sides at the same height, the adjustment component is used to adjust the distance value between the main boards on both sides; the The mounting block is connected to a matching support assembly; the matching support assembly includes a translation slot opened inside the mounting block, the length direction of the translation slot is perpendicular to the length direction of the support rod, and the opening direction of the translation slot on the two main boards is set on a side away from each other on the mounting block, the interior of the translation slot is slidingly connected to a wedge block, a guide inclined surface is provided on the wedge block, the wedge block is fixedly connected to a pressure spring on the side close to the opening of the translation slot, the end of the pressure spring is fixedly connected to a side pressure block, the side of the mounting block is slidingly connected to a push rod, one end of the push rod is connected to a positive pressure plate, and the position of the other end of the push rod corresponds to the guide inclined surface; when the push rod moves toward the inside of the mounting block, the push rod abuts against the surface of the guide inclined surface and pushes the wedge block to move toward the direction close to the side pressure block.

[0007] Furthermore, a dual-axis motor is fixedly installed inside the mainboard, and the output shafts on both sides of the dual-axis motor are respectively connected to the driving screws on both sides. When the dual-axis motor drives the driving screws on both sides to rotate synchronously, the driving screws on both sides drive the driving blocks on both sides to move synchronously in opposite directions.

[0008] Furthermore, a reset guide groove is provided on the inner side surface of the translation groove, the inner side surface of the reset guide groove is slidably connected to a reset guide block, a reset spring is fixedly connected between the reset guide block and the inner wall of the reset guide groove, the reset guide block is fixedly connected to the bottom of the wedge block, and the reset spring is arranged on the side of the reset guide block close to the side pressure block.

[0009] Furthermore, the side surfaces of the mounting blocks on both sides that are away from each other, the side surfaces of the main boards on both sides that are away from each other, and the outer side surfaces of the side pressure blocks are all arranged flush with each other.

[0010] The cam is an adjustable first lever and a second adjustable second lever are connected to the mounting block surfaces located on the main boards at both sides and in the same horizontal plane, respectively, wherein the first adjusting lever has a rotating groove at one end thereof, and a rotating block is provided at the other end thereof, wherein the rotating block is rotatably connected to the inner side surface of the rotating groove, a boss is provided on the surface of the first adjusting lever, a sliding cavity is provided inside the boss, and the inner side surface of the sliding cavity is slidably connected to the sliding block, one side of the sliding block is fixedly connected to a rectangular pressure rod, and the other side of the sliding block is fixedly connected to a rotating shaft, and the rotating shaft axis passes through the first adjusting rod and the rotating block on the side away from the rectangular pressure rod, and the rectangular pressure rod passes through the first adjusting rod on the side away from the rotating shaft, and the rectangular pressure rod is slidably connected to the inner wall of the first adjusting rod, an extrusion spring is fixedly connected between the side of the sliding block away from the rectangular pressure rod and the inner wall of the sliding cavity, and a plurality of limiting grooves are provided on the side of the first adjusting rod away from the rectangular pressure rod, extending to the inside of the rotating block, and a plurality of limiting strips are provided on the side of the rotating shaft away from one end of the rectangular pressure rod.

[0011] Furthermore, the rotating shaft is slidably connected to the inner side surface of the rotating block, and the rotating block rotates with the central axis of the rotating shaft as the rotation axis.

[0012] Furthermore, the position, shape and size of the limiting strip are all matched with the limiting groove, and the rectangular pressure rod moves into the interior of the mounting block to drive the limiting strip to withdraw from the limiting groove on the rotating block.

[0013] Furthermore, a convenient collection mechanism is provided between the support rod and the main board on the same side, and the convenient collection mechanism includes auxiliary grooves respectively opened on the side of the support rod close to the main board and on the surface of both sides of the main board, an auxiliary rod rotatably connected between the auxiliary groove on the support rod and the driving block, and semicircular blocks are provided on the ends of the auxiliary rods on the upper and lower sides that are close to each other, and the two semicircular blocks are provided with teeth that cooperate with each other, and the two semicircular blocks are meshed with each other through the teeth.

[0014] Furthermore, an auxiliary component is provided on the outside of the driving block, and the auxiliary component includes a protrusion fixedly connected to the surface of the driving block, a circular groove is provided inside the protrusion, and the inner side surface of the circular groove is slidably connected to a circular plate, and the side of the circular plate close to the semicircular block is fixedly connected to a plurality of limiting rods at equal intervals in a circular ring shape, and the side of the circular plate away from the semicircular block is fixedly connected to the circular rod, and the end of the circular rod away from the circular plate is fixedly connected to a pull plate located outside the protrusion, the circular rod is slidably connected to the inner side surface of the protrusion, and the bottom of the pull plate is fixedly connected to two clamping blocks along the diagonal, and a clamping groove adapted to the clamping block is provided on the surface of the protrusion, and the depth value of the clamping groove is adapted to the limiting rod, and a plurality of limiting slots adapted to the limiting rod are provided on the surface of one of the semicircular blocks, and a connecting spring is provided between the side of the circular plate away from the semicircular block and the inner wall of the circular groove.

[0015] Furthermore, a limiting guide groove is provided inside the support rod, and the inner side surfaces of the limiting guide grooves of two support rods located at the same side and at the same level are slidably connected to the same limiting guide rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) Through the cooperation between the upper and lower positive pressure plates on the same end of the main boards on both sides, four supporting points distributed in a rectangular shape are formed on the foundation pit wall panels set on the front and rear sides of the foundation pit. At the same time, through the cooperation of the side pressure plates on the four mounting blocks on the same side of the main board, four supporting points distributed in a rectangular shape are also formed on the foundation pit wall panels set on both sides of the foundation pit. This can not only make the force on the foundation pit wall panels more uniform during the working process, but also provide stable support for the foundation pit wall panels, so that the reinforcement support effect of the foundation pit is better; (2) During use, multiple sets of main boards and multiple sets of support rods are unfolded to form a rectangular frame-shaped support structure, and the unfolded main boards and support rods are close to the foundation pit wall panels, and the middle part is unobstructed, which will not hinder subsequent foundation pit deep excavation and other work; (3) The distance between the two main boards is adjusted by adjusting the assembly so that the two main boards are close to each other. The upper and lower support rods on the same main board are rotated toward the side close to the main board by the folding mechanism under the rotation of the auxiliary rod. When not in use, the main board and the support board are folded to effectively reduce their overall volume, making it easier to transport and carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A diagram showing the assembly state of the reinforcement equipment provided by an embodiment of the present invention in a foundation pit; Figure 2 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 3 A schematic diagram of a partial cross-sectional structure of a main board and a support board provided in an embodiment of the present invention; Figure 4 A schematic diagram of the connection structure between the mounting block and the matching support assembly provided in an embodiment of the present invention; Figure 5 The embodiment of the present invention provides Figure 4 The enlarged structural diagram at A in the middle; Figure 6 A schematic diagram of a partial cross-sectional structure of an adjustment assembly, a first adjustment rod and a rotating block provided in an embodiment of the present invention; Figure 7 The embodiment of the present invention provides Figure 6 The enlarged structural diagram at B in the middle; Figure 8 A schematic diagram of a partial cross-sectional structure of the connection between the drive block and the receiving mechanism and the auxiliary components provided in an embodiment of the present invention; Fig. 9 This is a schematic diagram of the transverse cross-sectional structure of the inner semicircular block and teeth of the driving block provided in an embodiment of the present invention.

[0019] Description of reference numerals: 1, foundation pit; 2, foundation pit wall plate; 3, main board; 31, driving screw; 32, driving block; 33, support rod; 34, mounting block; 35, adjustment assembly; 351, first adjustment rod; 352, second adjustment rod; 353, rotating groove; 354, rotating block; 355, boss; 356, sliding block; 357, rectangular pressure rod; 358, rotating shaft; 359, limiting groove; 3510, limiting strip; 3511, extrusion spring; 36, matching support assembly; 361, wedge block; 362, guide slope; 36 3. Pressure spring; 364. Side pressure block; 365. Push rod; 366. Positive pressure plate; 367. Reset guide groove; 368. Reset guide block; 369. Reset spring; 4. Convenient collection mechanism; 41. Auxiliary groove; 42. Auxiliary rod; 43. Semicircular block; 44. Teeth; 45. Auxiliary component; 451. Protrusion; 452. Round plate; 453. Insert rod; 454. Round rod; 455. Pull plate; 456. Block; 457. Slot; 458. Limiting slot; 459. Connecting spring; 46. Limiting guide groove; 47. Limiting guide rod. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-Figure 3As shown, a civil engineering foundation pit construction reinforcement equipment comprises a plurality of groups of foundation pit wall panels 2 attached to the inner wall of the foundation pit 1, and a supporting mechanism is arranged between the plurality of groups of foundation pit wall panels 2, and the supporting mechanism is used to stably support the foundation pit wall panels 2 attached to the inner wall of the foundation pit 1; the supporting mechanism comprises two main boards 3 symmetrically arranged at intervals, and guide grooves are symmetrically arranged on both sides of the inner side surface of each main board 3, and the insides of the guide grooves on both sides are rotatably connected to drive screws 31, and the threads on the drive screws 31 on both sides are arranged in opposite directions, and a dual-axis motor is fixedly installed inside the main board 3, and the output shafts on both sides of the dual-axis motor are respectively connected to the drive screws 31 on both sides. The moving screw 31 is connected in transmission. When the dual-axis motor drives the driving screws 31 on both sides to rotate synchronously, the driving screws 31 on both sides can drive the driving blocks 32 on both sides to move synchronously in the opposite direction. The driving screws 31 on both sides are symmetrically threadedly connected to the driving blocks 32. The upper and lower ends of the driving blocks 32 are connected to the support rods 33. The end of the support rod 33 away from the main board 3 is fixedly connected to the mounting block 34. An adjustment component 35 is arranged between the mounting blocks 34 on the main boards 3 on both sides at the same height. The adjustment component 35 is used to adjust the distance between the main boards 3 on both sides; the mounting blocks 34 are connected to the supporting component 36; like Figure 4 As shown, the mating support assembly 36 includes a translation groove opened inside the mounting block 34, the length direction of the translation groove is perpendicular to the length direction of the support rod 33, and the opening direction of the translation groove on the two side main boards 3 is set on the side away from each other on the mounting block 34, the interior of the translation groove is slidably connected to a wedge block 361, a guide slope 362 is provided on the wedge block 361, the wedge block 361 is fixedly connected to a pressure spring 363 near the side of the translation groove opening, the end of the pressure spring 363 is fixedly connected to the side pressure block 364, the side of the mounting block 34 is slidably connected to a push rod 365, one end of the push rod 365 is connected to the positive pressure plate 366, and the position of the other end of the push rod 365 corresponds to the guide slope 362; when the push rod 365 moves toward the inside of the mounting block 34, the push rod 365 abuts against the surface of the guide slope 362 and pushes the wedge block 361 to move toward the direction close to the side pressure block 364.

[0022] A further embodiment of the present invention is as follows: Figure 5 As shown, a reset guide groove 367 is provided on the inner side surface of the translation groove, and the inner side surface of the reset guide groove 367 is slidably connected to the reset guide block 368, and a reset spring 369 is fixedly connected between the reset guide block 368 and the inner wall of the reset guide groove 367, and the reset guide block 368 is fixedly connected to the bottom of the wedge block 361, and the reset spring 369 is arranged on the side of the reset guide block 368 close to the side pressure block 364.

[0023] The side surfaces of the mounting blocks 34 on both sides that are away from each other, the side surfaces of the main boards 3 on both sides that are away from each other, and the outer side surfaces of the side pressure blocks 364 are all arranged flush.

[0024] When in use, the two main boards 3 are adjusted to the sides away from each other to fit with the inner walls on the two opposite sides of the foundation pit 1, so that the mounting blocks 34 on the main boards 3 on both sides can be simultaneously fitted with the inner wall of the foundation pit 1 on the side flush with the main boards 3, so that the side pressure blocks 364 can contact and squeeze the inner wall of the foundation pit 1 more quickly under the push of the wedge block 361.

[0025] A further embodiment of the present invention is as follows: Figure 6-7 As shown, the adjustment assembly 35 includes a first adjustment rod 351 and a second adjustment rod 352 which are rotatably connected to the surface of the mounting block 34 located on the main boards 3 on both sides and in the same horizontal plane. The end of the first adjustment rod 351 is provided with a rotation groove 353, and the end of the second adjustment rod 352 is provided with a rotation block 354, and the rotation block 354 is rotatably connected to the inner side of the rotation groove 353. The surface of the first adjustment rod 351 is provided with a boss 355, and the inside of the boss 355 is provided with a sliding cavity. The inner side of the sliding cavity is slidably connected to a sliding block 356, one side of the sliding block 356 is fixedly connected to a rectangular pressure rod 357, and the other side of the sliding block 356 is fixedly connected to The rotating shaft 358 passes through the first adjusting rod 351 and the rotating block 354 on the side away from the rectangular pressure rod 357. The rectangular pressure rod 357 passes through the first adjusting rod 351 on the side away from the rotating shaft 358. The rectangular pressure rod 357 is slidingly connected to the inner wall of the first adjusting rod 351. The sliding block 356 is fixedly connected to the inner wall of the sliding cavity on the side away from the rectangular pressure rod 357 with an extrusion spring 3511. The first adjusting rod 351 is provided with a plurality of limiting grooves 359 extending to the inside of the rotating block 354 on the side away from the rectangular pressure rod 357. A plurality of limiting strips 3510 are provided on the side of the rotating shaft 358 at one end away from the rectangular pressure rod 357.

[0026] The surface of the first adjusting rod 351 is provided with a rectangular through groove matched with the rectangular pressure rod 357, so that the rectangular pressure rod 357 cannot rotate during normal operation and can only slide along the inner side of the rectangular through groove, so that the rotating shaft 358 cannot rotate relative to the first adjusting rod 351.

[0027] Furthermore, the rotating shaft 358 is slidably connected to the inner side surface of the rotating block 354 , and the rotating block 354 can rotate with the central axis of the rotating shaft 358 as the rotation axis.

[0028] The position, shape and size of the limiting bar 3510 are all compatible with the limiting groove 359 , and the rectangular pressure rod 357 moves toward the inside of the mounting block 34 to drive the limiting bar 3510 to withdraw from the limiting groove 359 located on the rotating block 354 .

[0029] A further embodiment of the present invention is as follows: Figure 1 , 8-9, a storage mechanism 4 is provided between the support rod 33 on the same side and the main board 3, and the storage mechanism 4 includes auxiliary grooves 41 respectively provided on the support rod 33 on one side close to the main board 3 and on both sides of the main board 3, an auxiliary rod 42 is rotatably connected between the auxiliary groove 41 on the support rod 33 and the driving block 32, and semicircular blocks 43 are provided at the ends of the auxiliary rods 42 on the upper and lower sides close to each other, and teeth 44 that cooperate with each other are provided on the two semicircular blocks 43, and the two semicircular blocks 43 are meshed with each other through the teeth 44.

[0030] The size and specifications of the auxiliary groove 41 are compatible with the auxiliary rod 42, and the auxiliary groove 41 is set to maintain the normal rotation of the auxiliary rod 42, and when the support rods 33 on both sides of the main board 3 are retracted, the auxiliary rod 42 is partially retracted so that the support rods 33 are retracted closer to the main board 3. In the retracted state, the volume of the device is smaller.

[0031] In this embodiment, an auxiliary component 45 is provided on the outside of the driving block 32. The auxiliary component 45 includes a protrusion 451 fixedly connected to the surface of the driving block 32. A circular groove is provided inside the protrusion 451. The inner side of the circular groove is slidably connected to a circular plate 452. The side of the circular plate 452 close to the semicircular block 43 is fixedly connected to a plurality of limiting rods 453 at equal intervals in a circular ring shape. The side of the circular plate 452 away from the semicircular block 43 is fixedly connected to a circular rod 454. The end of the circular rod 454 away from the circular plate 452 is fixedly connected to the protrusion 451 outside. The pull plate 455, the round rod 454 is slidably connected to the inner side of the protrusion 451, the bottom of the pull plate 455 is fixedly connected to two clamping blocks 456 along the diagonal, the surface of the protrusion 451 is provided with a clamping groove 457 adapted to the clamping block 456, the depth value of the clamping groove 457 is adapted to the limiting plug rod 453, and a plurality of limiting slots 458 adapted to the limiting plug rod 453 are provided on the surface of one of the semicircular blocks 43, and a connecting spring 459 is provided between the side of the circular plate 452 away from the semicircular block 43 and the inner wall of the circular groove.

[0032] The outer surface of the protrusion 451 is provided with a through hole connected to the inside of the circular groove, and the round rod 454 is slidably connected to the inner side of the through hole, and the round rod 454 can rotate inside the through hole, so that after the pull plate 455 moves to drive the block 456 to withdraw from the inside of the slot 457, it can rotate at a certain angle so that the block 456 abuts against the surface of the protrusion 451, so that the limiting rod 453 maintains a stable disengagement state with the limiting slot 458 after it withdraws from the inside of the limiting slot 458 synchronously with the pull plate 455.

[0033] A limiting guide groove 46 is formed inside the support rod 33 , and the inner side surfaces of the limiting guide grooves 46 of two support rods 33 at the same side and at the same level are slidably connected to the same limiting guide rod 47 .

[0034] The limiting guide rod 47 is slidably connected to the inner side surfaces of the limiting guide grooves 46 on the support rods 33 on both sides. With the cooperation of the limiting guide rod 47 and the limiting guide grooves 46, the movement direction of the support rods 33 on both sides can be limited, so that the support rods 33 on both sides can maintain a relatively stable state during operation.

[0035] When in use, the operator pulls the pull plate 455 outward to make the block 456 withdraw from the slot 457. At the same time, the limiting rod 453 is driven to withdraw from the limiting slot 458, so that the limiting rod 453 will not restrict the rotation of the semicircular block 43. After the block 456 withdraws from the slot 457, the operator manually rotates the pull plate 455 to misalign the block 456 with the slot 457. After the pull plate 455 moves and drives the circular plate 452 to move to compress the connecting spring 459, the block 456 abuts against the surface of the protrusion 451, so that the limiting rod 453 and the limiting slot 458 remain in a stable separation state.

[0036] Then the operator pushes the support rods 33 on both sides of the same main board 3 in the direction away from each other. When the support rods 33 on both sides move away from each other, the auxiliary rod 42 is driven to rotate. When the position adjustment of the support rod 33 is completed, the operator rotates the block 456 to its position corresponding to the slot 457, and releases the pull plate 455. Under the action of the rebound force of the connecting spring 459, the circular plate 452 moves in the opposite direction, driving the block 456 to move into the slot 457, and at the same time drives the limiting rod 453 to move into the limiting slot 458, thereby limiting the relative rotation between the two auxiliary rods 42, so that the adjusted upper and lower support rods 33 remain in a stable state.

[0037] Afterwards, the operator presses the rectangular pressure rod 357 to move the rectangular pressure rod 357 and drive the rotating shaft 358 to move. The rotating shaft 358 moves and drives the limiting strip 3510 on its side to move out of the limiting groove 359 located inside the rotating block 354, so that the limiting strip 3510 no longer limits the rotation of the rotating block 354, so that the rotating block 354 and the first adjusting rod 351 rotate relative to each other, and the second adjusting rod 352 and the first adjusting rod 351 rotate relative to each other. At this time, the operator pushes the first adjusting rod 351 and the second adjusting rod 352, and when the two rotate, the main boards 3 on both sides are driven to move away from each other, so that the sides of the two main boards 3 that are away from each other contact with the surfaces of the foundation pit wall panels 2 arranged on the opposite sides of the foundation pit 1; After the adjustment is completed, the driving screw 31 is synchronously driven by the double-axis motors on the main boards 3 on both sides to rotate, so that the two groups of driving screws 31 on the main boards 3 on both sides rotate synchronously, and the two driving blocks 32 on the two groups of driving screws 31 are driven to move away from each other synchronously, and the movement of the driving block 32 drives the support rod 33 to move, and the movement of the support rod 33 drives the mounting block 34 at its end to move, and the movement of the mounting block 34 drives the positive pressure plate 366 to move, so that the positive pressure plate 366 gradually approaches the foundation pit wall panels 2 on the other two sides, and contacts and squeezes the foundation pit wall panels 2, so that the positive pressure plate 366 stably squeezes the foundation pit wall panels 2 in contact with it, so that the contact stability between the positive pressure plate 366 and the inner wall of the foundation pit 1 is better.

[0038] When the positive pressure plates 366 on both sides are in contact with the surface of the foundation pit wall plate 2, the continued movement of the support rod 33 causes relative movement between the mounting block 34 and the positive pressure plate 366, so that the push rod 365 on the positive pressure plate 366 moves toward the inside of the mounting block 34 and squeezes the guide slope 362. Under the guidance of the guide slope 362, the push rod 365 drives the wedge block 361 to move when it moves toward the inside of the mounting block 34, and the wedge block 361 drives the reset guide block 368 along the inner side of the reset guide groove 367 when it moves. The outer surface of the side pressure block 364 is flush with the outer surface of the mounting block 34. Therefore, when the wedge block 361 moves to apply pressure to the pressure spring 363, the pressure spring 363 cannot push the side pressure block 364 to move. The pressure spring 363 compresses itself and applies a greater thrust to the side pressure block 364, so that the contact pressure between the side pressure block 364 and the foundation pit wall panel 2 gradually increases, and the foundation pit wall panel 2 is stably squeezed and fixed, so that the contact stability between the foundation pit wall panel 2 and the inner wall of the foundation pit 1 is better.

[0039] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A civil engineering foundation pit construction reinforcement device, comprising a plurality of foundation pit wall panels (2) attached to the inner wall of a foundation pit (1), characterized in that: A support mechanism is provided between the plurality of groups of foundation pit wall panels (2), the support mechanism comprising two main boards (3) symmetrically arranged at intervals, guide grooves being symmetrically provided on both sides of the inner side surface of each main board (3), the insides of the guide grooves on both sides being rotatably connected to drive screws (31), the threads on the drive screws (31) on both sides being arranged in opposite directions, the drive screws (31) on both sides being symmetrically threadedly connected to drive blocks (32), the upper and lower ends of the drive blocks (32) being connected to support rods (33), one end of the support rod (33) away from the main board (3) being fixedly connected to a mounting block (34), an adjustment component (35) being provided between the mounting blocks (34) on the main boards (3) on both sides at the same height, the mounting block (34) being connected to a matching support component (36); the matching support component (36) comprising a translation groove provided inside the mounting block (34), the length direction of the translation groove being parallel to the length direction of the support rod (33). The opening directions of the translation grooves on the main boards (3) on both sides are arranged vertically and are arranged on the side of the mounting block (34) away from each other. The translation groove is internally slidably connected to a wedge block (361). A guide inclined surface (362) is arranged on the wedge block (361). The wedge block (361) is fixedly connected to a pressure spring (363) on the side close to the translation groove opening. The end of the pressure spring (363) is fixedly connected to a side pressure block (364). The side of the mounting block (34) is slidably connected to a push rod (365). One end of the push rod (365) is connected to a positive pressure plate (366). The position of the other end of the push rod (365) corresponds to the guide inclined surface (362). When the push rod (365) moves toward the inside of the mounting block (34), the push rod (365) abuts against the surface of the guide inclined surface (362) and pushes the wedge block (361) to move in a direction close to the side pressure block (364).

2. A civil engineering foundation pit construction reinforcement equipment according to claim 1, characterized in that: A dual-axis motor is fixedly mounted inside the main board (3), and the output shafts on both sides of the dual-axis motor are respectively connected to the driving screws (31) on both sides in driving connection. When the dual-axis motor drives the driving screws (31) on both sides to rotate synchronously, the driving screws (31) on both sides can drive the driving blocks (32) on both sides to move synchronously in the opposite direction.

3. A civil engineering foundation pit construction reinforcement equipment according to claim 2, characterized in that: A reset guide groove (367) is provided on the inner side surface of the translation groove, the inner side surface of the reset guide groove (367) is slidably connected to a reset guide block (368), a reset spring (369) is fixedly connected between the reset guide block (368) and the inner wall of the reset guide groove (367), the reset guide block (368) is fixedly connected to the bottom of the wedge block (361), and the reset spring (369) is arranged on the side of the reset guide block (368) close to the side pressure block (364).

4. The civil engineering foundation pit construction reinforcement equipment according to claim 1, characterized in that: The side surfaces of the mounting blocks (34) on both sides that are away from each other, the side surfaces of the main boards (3) on both sides that are away from each other, and the outer side surface of the side pressure block (364) are all arranged flush with each other.

5. A civil engineering foundation pit construction reinforcement equipment according to claim 4, characterized in that: The adjustment assembly (35) comprises a first adjustment rod (351) and a second adjustment rod (352) which are rotatably connected to the surfaces of mounting blocks (34) located on the main boards (3) at both sides and in the same horizontal plane, respectively; a rotation groove (353) is provided at the end of the first adjustment rod (351); a rotation block (354) is provided at the end of the second adjustment rod (352); the rotation block (354) is rotatably connected to the inner side surface of the rotation groove (353); a boss (355) is provided on the surface of the first adjustment rod (351); a sliding cavity is provided inside the boss (355); the inner side surface of the sliding cavity is slidably connected to a sliding block (356); one side of the sliding block (356) is fixedly connected to a rectangular pressure rod (357); the other side of the sliding block (356) is fixedly connected to a rotation groove (353); A movable shaft (358) is provided, wherein the rotating shaft (358) penetrates the first adjusting rod (351) and the rotating block (354) toward the side away from the rectangular pressure rod (357); the side of the rectangular pressure rod (357) away from the rotating shaft (358) penetrates the first adjusting rod (351); the rectangular pressure rod (357) is slidably connected to the inner wall of the first adjusting rod (351); an extrusion spring (3511) is fixedly connected between the side of the sliding block (356) away from the rectangular pressure rod (357) and the inner wall of the sliding cavity; a plurality of limiting grooves (359) extending to the inside of the rotating block (354) are provided on the side of the first adjusting rod (351) away from the rectangular pressure rod (357); and a plurality of limiting strips (3510) are provided on the side of the rotating shaft (358) away from the end of the rectangular pressure rod (357).

6. A civil engineering foundation pit construction reinforcement equipment according to claim 5, characterized in that: The rotating shaft (358) is slidably connected to the inner side surface of the rotating block (354), and the rotating block (354) rotates with the central axis of the rotating shaft (358) as the rotation axis.

7. A civil engineering foundation pit construction reinforcement equipment according to claim 6, characterized in that: The position, shape and size of the limiting strip (3510) are all compatible with the limiting groove (359), and the rectangular pressure rod (357) moves into the interior of the mounting block (34) to drive the limiting strip (3510) to exit from the limiting groove (359) located on the rotating block (354).

8. A civil engineering foundation pit construction reinforcement device according to any one of claims 1 or 7, characterized in that: A retractable mechanism (4) is provided between the support rod (33) and the main board (3) on the same side, the retractable mechanism (4) comprising auxiliary grooves (41) respectively provided on the side of the support rod (33) close to the main board (3) and on both sides of the main board (3), an auxiliary rod (42) rotatably connected between the auxiliary groove (41) on the support rod (33) and the driving block (32), semicircular blocks (43) are provided at the ends of the auxiliary rods (42) on the upper and lower sides close to each other, and teeth (44) that cooperate with each other are provided on the two semicircular blocks (43), and the two semicircular blocks (43) are meshed with each other through the teeth (44).

9. The civil engineering foundation pit construction reinforcement equipment according to claim 8, characterized in that: An auxiliary component (45) is disposed outside the driving block (32), the auxiliary component (45) comprising a protrusion (451) fixedly connected to the surface of the driving block (32), a circular groove being provided inside the protrusion (451), the inner side surface of the circular groove being slidably connected to a circular plate (452), a side of the circular plate (452) close to the semicircular block (43) being fixedly connected to a plurality of limiting plug rods (453) at equal intervals in a circular ring shape, a side of the circular plate (452) away from the semicircular block (43) being fixedly connected to a round rod (454), and an end of the round rod (454) away from the circular plate (452) being fixedly connected to a The pull plate (455) is slidably connected to the inner side surface of the protrusion (451); the bottom of the pull plate (455) is fixedly connected to two clamping blocks (456) along a diagonal line; the surface of the protrusion (451) is provided with a clamping groove (457) matched with the clamping block (456); the depth value of the clamping groove (457) is matched with the limiting insertion rod (453); the surface of one of the semicircular blocks (43) is provided with a plurality of limiting slots (458) matched with the limiting insertion rod (453); and a connecting spring (459) is provided between the side of the circular plate (452) away from the semicircular block (43) and the inner wall of the circular groove.

10. A civil engineering foundation pit construction reinforcement device according to claim 9, characterized in that: A limiting guide groove (46) is provided inside the support rod (33), and the inner side surfaces of the limiting guide grooves (46) of two support rods (33) located at the same side and at the same level are slidably connected to the same limiting guide rod (47).

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