Combined type steel axial force supporting device

Abstract

The invention discloses a combined type steel axial force supporting device which comprises a foundation pit, an enclosure wall, a purlin beam, a detection assembly and a supporting assembly, the enclosure wall is vertically connected to the foundation pit, the purlin beam is horizontally arranged on the enclosure wall, and the detection assembly comprises a detection cylinder, a transmission rod, a mounting plate, a sliding push plate, a connecting air bag, a mounting water tank and a connecting box. The sliding push plate is slidably arranged in the detection cylinder, two ends of the transmission rod are respectively connected with the mounting plate and the sliding push plate, an air delivery pipe is arranged on the detection cylinder, the other end of the air delivery pipe is communicated with the connecting air bag, the connecting air bag is arranged in the mounting water tank, a connecting water bag is arranged in the connecting box, and a water delivery pipe is arranged between the mounting water tank and the connecting water bag. The supporting assembly comprises a supporting sleeve rod and two supporting air cylinders, and the two supporting air cylinders are arranged in the supporting sleeve rod and connected with the corresponding purlin beams. The foundation pit prestress adjusting device has the effects that adaptive adjustment of foundation pit prestress is achieved, and the safety of the construction process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a combined steel axial force support device. Background Art

[0002] The foundation pit support project is a kind of temporary project. At the same time, the foundation pit support project also belongs to the intersecting disciplines of structural engineering, geotechnical engineering and construction technology. It is a complex system project with the interaction of multiple complex factors. The current foundation pit support usually includes foundation pit retaining walls, surrounding purlin beams and prestressed steel composite support structures. Generally, the foundation pit retaining walls are arranged on the inner wall of the foundation pit along the circumferential direction, and the surrounding purlin beams are arranged on the inner side of the foundation pit protective wall. Among them, the prestressed steel composite support structure usually includes steel support beams and prestressed pressure components. The two ends of the steel support beams are connected to the surrounding purlin beams through prestressed pressure components to achieve stable support for the inside of the foundation pit.

[0003] At present, the commonly used prestressing pressure components are ordinary hydraulic jacks. Although they can provide prestress for steel support beams and purlin beams, they cannot observe and sense the deformation of the foundation pit. In different geological environments, there may be outward or inward collapse and deformation inside the foundation pit. If the prestress of the steel support beam cannot be adaptively adjusted in time when the foundation pit deforms, the deformation will continue to expand, thereby affecting the structures and facilities near the foundation pit, especially when there are building structures near the foundation pit that have extremely high requirements for foundation deformation control, which will affect the safety of the construction process. Summary of the invention

[0004] In order to achieve adaptive adjustment of the prestressing force of the foundation pit and improve the safety of the construction process, the present application provides a combined steel axial force support device.

[0005] The combined steel axial force support device provided in this application adopts the following technical solution: A combined steel axial force support device comprises a foundation pit, a retaining wall, a purlin beam, a detection assembly and a support assembly, wherein the retaining wall is vertically connected to the vertical inner wall of the foundation pit, the purlin beam is horizontally arranged on the inner side of the retaining wall, the detection assembly and the support assembly are arranged between two opposite inner walls of the foundation pit, the detection assembly comprises a detection cylinder, a transmission rod, a mounting plate, a sliding push plate, a connecting air bag, an installation water tank and a connecting box, the detection cylinder is arranged inside the foundation pit, the sliding push plate is slidably arranged in the detection cylinder, the two ends of the transmission rod are respectively connected to the mounting plate and the sliding push plate, the transmission rod is slidably arranged with the detection cylinder, an air supply pipe is connected to the detection cylinder, and the other end of the air supply pipe is connected to the connecting An airbag connection is arranged, wherein the connecting airbag is arranged in the installation water tank, a connecting water bag is arranged in the connection box, a water pipe is arranged between the installation water tank and the connecting water bag, a blocking block is arranged at the top of the connecting water bag, a first detection transmitting end and a first detection receiving end are correspondingly arranged on the vertical inner wall of the connection box, the support assembly comprises a support sleeve rod, a support cylinder and a mounting block, the two ends of the support sleeve rod are arranged one-to-one correspondingly to the two opposite surrounding purlin beams, two support cylinders are arranged in the support sleeve rod, the output shafts of the support cylinders extend in opposite directions and are each connected to one of the mounting blocks, the mounting block is connected to the corresponding surrounding purlin beams, the first detection transmitting end and the first detection receiving end are electrically connected.

[0006] By adopting the above technical solution, the support assembly is installed between the two corresponding surrounding purlin beams. When the two mounting plates move toward each other under the external pressure of the foundation pit, the sliding push plate moves and pushes the gas in the detection cylinder into the connecting airbag. The enlarged connecting airbag squeezes the liquid in the installation water tank into the connecting water bag through the water pipe. The connecting water bag continues to extend, and the barrier block rises. When the barrier block rises to between the first detection transmitting end and the first detection receiving end, the first detection receiving end cannot receive the signal from the first detection transmitting end. At this time, the support cylinder receives the signal, and the output shaft of the support cylinder extends, thereby increasing the prestress of the support assembly and preventing the foundation pit from further deforming inward. Through the mutual cooperation of the foundation pit, the retaining wall, the surrounding purlin beam, the detection assembly and the support assembly, it has the effect of realizing adaptive adjustment of the prestress of the foundation pit and improving the safety of the construction process.

[0007] Optionally, a second detection transmitting end and a second detection receiving end are correspondingly arranged on the vertical inner wall of the connecting box, and the second detection transmitting end and the second detection receiving end are arranged below the first detection transmitting end and the first detection receiving end, and the second detection transmitting end and the second detection receiving end are both electrically connected to the supporting cylinder.

[0008] By adopting the above technical solution, when the inner walls of the two foundation pits move away from each other, the length of the connecting water bag is shortened, and when the blocking block arranged at the top of the connecting water bag drops below the second detection transmitting end and the second detection receiving end, the second detection receiving end receives the signal of the second detection transmitting end, and both send electrical signals to the corresponding supporting cylinders. The output shaft of the supporting cylinder is shortened, thereby reducing the overall supporting force of the supporting assembly and reducing the possibility of the foundation pit continuing to expand outward.

[0009] Optionally, a transfer rod is slidably arranged at both ends of the detection cylinder in the length direction, two sliding push plates are slidably arranged in the detection cylinder, the two transfer cylinders correspond to and are connected to the two sliding push plates one by one, a detection partition is arranged in the detection cylinder, the detection partition divides the inner cavity of the detection cylinder into two chambers, and the two sliding push plates are arranged on opposite sides of the detection partition.

[0010] By adopting the above technical solution, the detection partition separates the detection cylinder into two unconnected inner cavities, thereby realizing the separate detection of the deformation degree of the two inner walls of the foundation pit. After detecting the deformation of the inner wall of the foundation pit, the rapid adaptive support force adjustment of the corresponding inner wall of the foundation pit is realized by sending an electrical signal to the corresponding support cylinder.

[0011] Optionally, two supporting diagonal rods are arranged at an angle on the mounting block, and the supporting diagonal rods are rotatably connected to the mounting block. An adjustment component for adjusting the angle of the two supporting diagonal rods is arranged on the mounting block, and a connecting plate is rotatably arranged at one end of the supporting diagonal rod away from the mounting block, and the connecting plate is connected to the corresponding surrounding purlin beam.

[0012] By adopting the above technical solution, two supporting diagonal rods are provided at both ends of the supporting sleeve rod in the length direction, and the supporting force of the supporting assembly is evenly distributed at multiple points, thereby achieving uniformity of the supporting force and reducing the possibility of irregular deformation of the foundation pit.

[0013] Optionally, the adjustment component includes a driving gear, a driven gear and a rotating motor, wherein one driven gear is provided on the rotating shaft of the supporting inclined rod and the mounting block, and two driving gears are rotatably provided on the mounting block. The two driving gears correspond to the two driven gears one by one and are meshingly connected, and the two driving gears are meshingly connected. The rotating motor is provided on the mounting block, and the rotating motor is transmission-connected to one of the driving gears.

[0014] By adopting the above technical solution, according to different support needs, the rotating motor is started to drive the two driving gears and the two driven gears to rotate, the two driven gears rotate in the same degree and in the same opposite direction, and the two supporting oblique rods rotate in the same angle in the opposite direction under the driving action, thereby realizing the angle adjustment of the supporting oblique rods.

[0015] Optionally, a positioning piece for locking the supporting oblique rod is provided on the mounting block, and the positioning piece includes a connecting slider, a positioning slide rod and a positioning plate. Two sliding arc grooves are provided on the side of the mounting block close to the supporting oblique rod, and the two sliding grooves are provided in a one-to-one correspondence with the two supporting oblique rods. The connecting slider is slidably set in the sliding arc groove, one end of the positioning slide rod is connected to the connecting slider, and the other end passes through the supporting oblique rod and is threadedly connected to the positioning plate, and the positioning plate is tightly pressed against the supporting oblique rod.

[0016] By adopting the above technical solution, when the supporting inclined rod rotates, the positioning block slides in the corresponding sliding arc groove. After the angle adjustment of the supporting inclined rod is completed, the positioning plate is screwed, and the positioning plate is pressed against one side of the supporting inclined rod, thereby limiting the position of the supporting inclined rod and preventing the supporting inclined rod from shaking and causing damage to the driving gear and the driven gear.

[0017] Optionally, two sliding blocks are slidably arranged in the support sleeve rod, the two sliding blocks are arranged between the two supporting cylinders and are connected to the two supporting cylinders one-to-one, and the support sleeve rod is provided with an adjustment component for driving the two sliding blocks to move toward or away from each other.

[0018] By adopting the above technical solution, before supporting the support assembly, the distance between the two sliding blocks is adjusted through the adjustment assembly according to the width of the foundation pit, thereby realizing the adjustment of the overall length of the support assembly, so that the length of the support assembly can be suitable for foundation pits of different widths, thereby expanding the scope of application of the device.

[0019] Optionally, two groups of the support components are arranged between two opposite retaining walls, and the two groups of the support components are arranged correspondingly in the vertical direction.

[0020] By adopting the above technical solution, two groups of support components and two groups of detection components are arranged at different heights, so that different strengths of support are provided to the inner side of the foundation pit according to the different heights of the foundation pit.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the cooperation of foundation pit, retaining wall, purlin beam, detection components and support components, it can achieve the effect of adaptive adjustment of foundation pit prestress and improve the safety of construction process; 2. The detection partition separates the detection cylinder into two unconnected inner cavities, realizing the separate detection of the deformation degree of the two inner walls of the foundation pit. After the deformation of the inner wall of the foundation pit is detected, the supporting force of the corresponding inner wall of the foundation pit can be adjusted quickly and adaptively; 3. Two groups of support components and two groups of detection components are arranged at different heights, so that the inner side of the foundation pit can be supported with different strengths according to the different heights of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present application for embodying a combined steel axial force support device.

[0023] Figure 2 It is a partial cross-sectional view used to reflect the internal structure of the support sleeve rod in the embodiment of the present application.

[0024] Figure 3 It is a structural schematic diagram used to reflect the detection component in the embodiment of the present application.

[0025] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0026] Figure 5 yes Figure 2 Enlarged view of part B in the middle.

[0027] Figure 6 yes Figure 2 Enlarged view of part C in the middle.

[0028] Description of the accompanying drawings: 1. foundation pit; 2. retaining wall; 3. surrounding purlin; 4. support assembly; 41. support sleeve rod; 42. mounting block; 43. support cylinder; 44. support diagonal rod; 45. rotating seat; 46. connecting plate; 47. driving gear; 48. driven gear; 49. rotating motor; 5. adjustment assembly; 51. sliding block; 52. bidirectional screw; 53. first bevel gear; 54. second bevel gear; 55. rotating rod; 56. rotating handle; 57. fixing plate; 6. detection assembly; 601. Detection cylinder; 602, sliding push plate; 603, transfer rod; 604, mounting plate; 605, air pipe; 606, air bag connection; 607, water tank installation; 608, water pipe; 609, water bag connection; 610, blocking block; 611, connection box; 612, first detection transmitting end; 613, first detection receiving end; 614, second detection transmitting end; 615, second detection receiving end; 616, detection partition; 7, sliding arc groove; 8, connecting slider; 9, positioning slide rod; 10, positioning plate. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 The present application is further described in detail. The present application provides a combined steel axial force support device, which has the effect of realizing adaptive adjustment of the prestress of the foundation pit 1 and improving the safety of the construction process.

[0030] Reference Figure 1 and Figure 2 A combined steel axial force support device includes a foundation pit 1, a retaining wall 2, a purlin beam 3, a support assembly 4, an adjustment assembly 5 and a detection assembly 6. The retaining wall 2 is connected to the vertical inner wall of the foundation pit 1, and two purlin beams 3 are horizontally connected to one side of each retaining wall 2 close to the inside. The detection assembly 6 and the support assembly 4 are both arranged in the foundation pit 1.

[0031] Reference Figure 2-4 , the detection assembly 6 includes a detection cylinder 601, a sliding push plate 602, a transmission rod 603, a mounting plate 604, an air pipe 605, a connecting air bag 606, a mounting water tank 607, a water pipe 608, a connecting water bag 609, a blocking block 610, a connecting box 611, a first detection transmitting end 612, a first detection receiving end 613, a second detection transmitting end 614 and a second detection receiving end 615. The detection cylinder 601 is set in the foundation pit 1, and a transmission rod 603 is slidably set at both ends of the length direction of the detection cylinder 601, and the setting direction of the transmission rod 603 is set perpendicular to the enclosure wall 2. Two transmission rods 603 are set one by one with two enclosure walls 2, and the transmission rod 603 passes through the corresponding enclosure wall 2 and is connected to the mounting plate 604, and the mounting plate 604 is set on the vertical inner wall of the foundation pit 1. One end of the transmission rod 603 located in the detection cylinder 601 is connected to a sliding push plate 602, and the edge of the sliding push plate 602 is arranged in contact with the inner ring wall of the detection cylinder 601. A detection partition 616 is arranged in the detection cylinder 601, and two sliding push plates 602 are arranged on both sides of the detection partition 616. The detection partition 616 divides the inner cavity of the detection cylinder 601 into two independent chambers.

[0032] Reference Figure 3 and Figure 4 Two air pipes 605 are connected to the detection cylinder 601, and the two air pipes 605 are connected to the two independent chambers of the detection cylinder 601 in a one-to-one correspondence. The connecting airbag 606 is set in the installation water tank 607. The end of the air pipe 605 away from the detection cylinder 601 passes through the installation water tank 607 and is connected to the connecting airbag 606. Liquid is filled between the installation water tank 607 and the connecting airbag 606. The connecting water bag 609 is in a long strip shape and is made of flexible material. The connecting water bag 609 is set inside the vertically arranged connection box 611. The top of the connecting water bag 609 is connected to the blocking block 610, and the blocking block 610 is slidably connected in the connection box 611. The water pipe 608 is connected between the installation water tank 607 and the connecting water bag 609, and the connecting water bag 609 is also filled with liquid.

[0033] Reference Figure 4The first detection transmitting end 612 and the first detection receiving end 613 are correspondingly arranged on the vertical inner wall of the connection box 611 and are located at the same vertical height, and the second detection transmitting end 614 and the second detection receiving end 615 are correspondingly arranged on the vertical inner wall of the connection box 611 and are located at the same vertical height. The second detection transmitting end 614 and the second detection receiving end 615 are arranged below the first detection transmitting end 612 and the first detection receiving end 613.

[0034] Reference Figure 2 and Figure 5 The support assembly 4 includes a support sleeve rod 41, a mounting block 42, a support cylinder 43, a support diagonal rod 44, a rotating seat 45 and a connecting plate 46. The support sleeve rod 41 is arranged in the foundation pit 1, and the arrangement direction of the support sleeve rod 41 is arranged perpendicular to the enclosure wall 2, and the two ends of the support sleeve rod 41 are arranged corresponding to two surrounding purlin beams 3 of the same height. The two ends of the support sleeve rod 41 are arranged in an open manner, and two support cylinders 43 are arranged in the support sleeve rod 41. The output shafts of the two support cylinders 43 are arranged along the length direction of the support sleeve rod 41 and extend along the open end of the support sleeve rod 41. Two mounting blocks 42 are slidably arranged in the support sleeve rod 41, and the two mounting blocks 42 are arranged one by one with the two support cylinders 43 and connected with their output shafts. Two support diagonal rods 44 are rotatably arranged on each mounting block 42 through a rotating shaft, and the end of the support diagonal rod 44 away from the mounting block 42 is rotatably connected to the rotating seat 45. The connecting plate 46 is connected to the rotating seat 45 , and the connecting plate 46 is connected to the corresponding surrounding purlin beam 3 through a connecting piece.

[0035] Reference Figure 2 and Figure 5 , the mounting block 42 is rotatably connected to one side of the supporting diagonal rod 44 with two driving gears 47, and the two driving gears 47 are meshed and connected. A driven gear 48 is provided on the rotating shaft connecting the two supporting diagonal rods 44 and the mounting block 42, and the two driven gears 48 are arranged one-to-one with the two driving gears 47, and the driven gears 48 are meshed and connected with the corresponding driving gears 47. A rotating motor 49 is provided on the mounting block 42, and the output shaft of the rotating motor 49 is transmission-connected with one of the driving gears 47. Two groups of positioning members for positioning the supporting diagonal rods 44 are provided on the mounting block 42, and the two groups of positioning members are arranged one-to-one with the two supporting diagonal rods 44. The positioning member includes a connecting slider 8, a positioning slider 9 and a positioning plate 10. Two sliding arc grooves 7 are provided on one side of the mounting block 42 close to the supporting diagonal rod 44 with the two rotating shafts as the center, and the cross section of the sliding arc groove 7 is T-shaped. The connecting slider 8 is slidably arranged in the sliding arc groove 7, and one end of the positioning slider 9 extends into the sliding arc groove 7 and is connected to the connecting slider 8. The positioning slide rod 9 passes through the supporting diagonal rod 44 , one end of the positioning slide rod 9 extends out of the supporting diagonal rod 44 and is provided with a thread, the positioning plate 10 is threadedly connected to the end of the positioning slide rod 9 , and the positioning plate 10 is tightly pressed against one side of the supporting diagonal rod 44 .

[0036] Reference Figure 2 and Figure 6 , the adjustment assembly 5 is arranged on the support sleeve rod 41, and the adjustment assembly 5 includes a sliding block 51, a bidirectional screw rod 52, a first bevel gear 53, a second bevel gear 54, a rotating rod 55, a rotating handle 56 and a fixed plate 57. Two sliding blocks 51 are slidably arranged in the support sleeve rod 41, and the two sliding blocks 51 are arranged between the two support cylinders 43. The two sliding blocks 51 are arranged and connected with the two support cylinders 43 in a one-to-one correspondence. The bidirectional screw rod 52 is arranged in the support sleeve rod 41 along the length direction of the support sleeve rod 41, and a fixed plate 57 is rotatably arranged at both ends of the bidirectional screw rod 52, and the fixed plate 57 is fixedly connected to the inner wall of the support sleeve rod 41. Two thread segments with opposite rotation directions are arranged at both ends of the bidirectional screw rod 52, and the two thread segments with opposite rotation directions correspond to the two sliding blocks 51 in a one-to-one correspondence and are threadedly connected. The first bevel gear 53 is sleeved on the middle section of the bidirectional screw rod 52, and the rotating rod 55 passes through the support sleeve rod 41 and is rotatably connected thereto. One end of the rotating rod 55 located in the supporting sleeve rod 41 is connected to the second bevel gear 54 , and one end of the rotating rod 55 located outside the supporting sleeve rod 41 is connected to the rotating handle 56 . The first bevel gear 53 is meshedly connected with the second bevel gear 54 .

[0037] Reference Figure 1 , Figure 4 and Figure 5 , the first detection transmitting end 612, the first detection receiving end 613, the second detection transmitting end 614 and the second detection receiving end 615 are electrically connected to the corresponding support cylinder 43. Two groups of support components 4 are provided between two corresponding enclosure walls 2, and the two groups of support components 4 correspond in the vertical direction. Two groups of detection components 6 are also provided, and the two groups of detection components 6 correspond to the two groups of support components 4. The position of the mounting plate 604 in the detection component 6 is consistent with the height of the corresponding support component 4.

[0038] Reference Figure 1 and Figure 5 When the foundation pit 1 is enclosed, the rotating motor 49 is started, driving the two driving gears 47 to rotate in opposite directions, and the two driven gears 48 to rotate in the same degree and in opposite directions. The two supporting inclined rods 44 rotate under the drive of the driven gears 48, and the angles of the two supporting inclined rods 44 are adjusted synchronously. After the angle adjustment of the supporting inclined rods 44 is completed, the positioning plate 10 is screwed, and the positioning plate 10 is pressed against the supporting inclined rods 44, so that the position of the supporting inclined rods 44 is locked.

[0039] Reference Figure 2 and Figure 6According to the length of the foundation pit 1, the rotating handle 56 is rotated, and the rotating rod 55 drives the second bevel gear 54 to rotate, and the first bevel gear 53 and the bidirectional screw 52 are driven by the second bevel gear 54 to rotate. The two sliding blocks 51 slide in opposite directions under the driving of the bidirectional screw 52 and the limiting and guiding action of the support sleeve rod 41, thereby adjusting the overall length of the support assembly 4, so that it can be applied to foundation pits 1 of different widths, and expanding the scope of application of the device. After completing the angle adjustment of the support diagonal rod 44 and the overall length adjustment of the support assembly 4, the connecting plate 46 at the end of the support diagonal rod 44 is connected to the corresponding surrounding purlin beam 3.

[0040] Reference Figure 2 and Figure 4 When the two opposite sides of the foundation pit 1 are squeezed inwards by the external soil pressure, the installation plate 604 moves toward the direction close to the inside of the foundation pit 1, and the sliding push plate 602 moves toward the direction close to the detection partition 616 driven by the transmission rod 603. The gas in the detection cylinder 601 is input into the connecting air bag 606 through the air pipe 605, and the liquid in the installation water tank 607 is pressed into the connecting water bag 609 in the connecting box 611 through the water pipe 608 under the squeezing action of the connecting air bag 606. The connecting water bag 609 stretches, and the blocking block 610 set at the top of the connecting water bag 609 gradually rises. Figure 6 When the blocking block 610 rises to between the first detection transmitting end 612 and the first detection receiving end 613, the first detection receiving end 613 cannot receive the signal emitted by the first detection transmitting end 612. At this time, the supporting cylinder 43 receives the electrical signal, and the output shaft of the supporting cylinder 43 is extended, thereby increasing the supporting force of the supporting assembly 4 and avoiding the possibility of the two opposite inner walls of the foundation pit 1 collapsing inward.

[0041] Reference Figure 2 , Figure 4 and Figure 6Similarly, when the two opposite sides of the foundation pit 1 move outwards when the external soil is relatively loose, the installation plate 604 moves in a direction away from the outside of the foundation pit 1, and the sliding push plate 602 moves in a direction away from the detection partition 616 driven by the transmission rod 603. The gas in the connecting air bag 606 is input into the inner cavity of the detection cylinder 601 through the air pipe 605, and the liquid in the connecting water bag 609 is pressed into the installation water tank 607 through the water pipe 608 under the compression of the connecting air bag 606, the connecting water bag 609 is shortened, and the blocking block 610 set at the top of the connecting water bag 609 gradually descends. When the blocking block 610 drops below the second detection transmitting end 614 and the second detection receiving end 615, the second detection receiving end 615 receives the signal emitted by the second detection transmitting end 614. At this time, the support cylinder 43 receives the electrical signal, and the output shaft of the support cylinder 43 is shortened, which reduces the support force of the support component 4 and avoids the possibility of the two opposite inner walls of the foundation pit 1 expanding outward. The setting of the detection partition 616 divides the inner cavity of the detection cylinder 601 into two independent cavities, realizes the position detection and support force feedback of the two opposite inner walls of the foundation pit 1, and realizes the rapid adaptive adjustment of the prestress of the support component 4.

[0042] Reference Figure 1 , Figure 2 and Figure 4 The arrangement of two groups of support components 4 and two groups of detection components 6 realizes deformation detection and support of different height positions of the foundation pit 1, which is helpful for adaptive support force adjustment of deformation degrees at different positions of the root. The arrangement of the first detection transmitting end 612, the first detection receiving end 613, the second detection transmitting end 614, and the second detection receiving end 615 realizes that after the deformation degree of the foundation pit 1 exceeds a certain threshold range, the support cylinder 43 is sent an electrical signal in time for control. Two support diagonal rods 44 are arranged at both ends of the support sleeve rod 41, which evenly distributes the support force at two points, which helps to improve the uniformity of the support force.

[0043] The implementation principle of a combined steel axial force support device in the embodiment of the present application is as follows: when the two opposite sides of the foundation pit 1 are deformed, the sliding push plate 602 moves in the detection cylinder 601. The connected water bag 609 is extended or shortened, and when the blocking block 610 rises above the first detection transmitting end 612 or below the second detection transmitting end 614, the support cylinder 43 receives the electrical signal, thereby realizing adaptive prestress adjustment of the support assembly 4.

[0044] The arrangement of two groups of support components 4 and two groups of detection components 6 realizes deformation detection and support of different height positions of the foundation pit 1, which helps to adjust the support force adaptively according to the deformation degree at different positions of the root.

[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 combined steel axial force support device, characterized in that: The invention comprises a foundation pit (1), a retaining wall (2), a purlin beam (3), a detection component (6) and a support component (4), wherein the retaining wall (2) is vertically connected to the vertical inner wall of the foundation pit (1), the purlin beam (3) is horizontally arranged on the inner side of the retaining wall (2), the detection component (6) and the support component (4) are arranged between two opposite inner walls of the foundation pit (1), and the detection component (6) comprises a detection cylinder (601), a transmission rod (603), a mounting plate (604), a sliding push plate (602), a connecting air bag (606), and a mounting water tank (607). 7) and a connecting box (611), the detection cylinder (601) is arranged inside the foundation pit (1), the sliding push plate (602) is slidably arranged in the detection cylinder (601), the two ends of the transmission rod (603) are respectively connected to the mounting plate (604) and the sliding push plate (602), the two mounting plates (604) correspond to and are connected to the two vertical inner walls opposite to the foundation pit (1), the transmission rod (603) is slidably arranged with the detection cylinder (601), and the detection cylinder (601) is connected with an air delivery pipe (605), The other end of the air delivery pipe (605) is connected to the connecting airbag (606), the connecting airbag (606) is arranged in the installation water tank (607), the connecting box (611) is provided with a connecting water bag (609), a water delivery pipe (608) is connected between the installation water tank (607) and the connecting water bag (609), a blocking block (610) is arranged at the top of the connecting water bag (609), and a first detection transmitting end (612) and a first detection receiving end (613) are correspondingly arranged on the vertical inner wall of the connecting box (611), the The support assembly (4) comprises a support sleeve rod (41), a support cylinder (43) and a mounting block (42); the two ends of the support sleeve rod (41) are arranged in one-to-one correspondence with the two opposite surrounding purlin beams (3); two support cylinders (43) are arranged in the support sleeve rod (41); the output axes of the support cylinders (43) extend in opposite directions and are each connected to one of the mounting blocks (42); the mounting block (42) is connected to the corresponding surrounding purlin beam (3); and the first detection transmitting end (612) and the first detection receiving end (613) are electrically connected.

2. A combined steel axial force support device according to claim 1, characterized in that: A second detection transmitting end (614) and a second detection receiving end (615) are correspondingly arranged on the vertical inner wall of the connection box (611); the second detection transmitting end (614) and the second detection receiving end (615) are arranged below the first detection transmitting end (612) and the first detection receiving end (613); the second detection transmitting end (614) and the second detection receiving end (615) are both electrically connected to the supporting cylinder (43).

3. A combined steel axial force support device according to claim 2, characterized in that: A transfer rod (603) is slidably arranged at both ends of the detection cylinder (601) in the length direction, and two sliding push plates (602) are slidably arranged in the detection cylinder (601). The two transfer cylinders correspond to and are connected to the two sliding push plates (602) one by one. A detection partition (616) is arranged in the detection cylinder (601), and the detection partition (616) divides the inner cavity of the detection cylinder (601) into two chambers. The two sliding push plates (602) are arranged on opposite sides of the detection partition (616).

4. The combined steel axial force support device according to claim 1 is characterized in that: Two supporting oblique rods (44) are arranged at an angle on the mounting block (42), and the supporting oblique rods (44) are rotatably connected to the mounting block (42). An adjusting assembly (5) for adjusting the angles of the two supporting oblique rods (44) is arranged on the mounting block (42). A connecting plate (46) is rotatably arranged at one end of the supporting oblique rod (44) away from the mounting block (42), and the connecting plate (46) is connected to the corresponding surrounding purlin beam (3).

5. The combined steel axial force support device according to claim 3 is characterized in that: The adjustment assembly (5) comprises a driving gear (47), a driven gear (48) and a rotating motor (49); one driven gear (48) is provided on each of the supporting inclined rod (44) and the rotating shaft of the mounting block (42); two driving gears (47) are rotatably provided on the mounting block (42); the two driving gears (47) correspond to the two driven gears (48) one by one and are meshingly connected; the two driving gears (47) are meshingly connected; the rotating motor (49) is provided on the mounting block (42); and the rotating motor (49) is transmission-connected to one of the driving gears (47).

6. The combined steel axial force support device according to claim 4, characterized in that: The mounting block (42) is provided with a positioning piece for locking the supporting diagonal rod (44), and the positioning piece includes a connecting slider (8), a positioning slider (9) and a positioning plate (10). Two sliding arc grooves (7) are provided on one side of the mounting block (42) close to the supporting diagonal rod (44), and the two sliding grooves are arranged in a one-to-one correspondence with the two supporting diagonal rods (44). The connecting slider (8) is slidably arranged in the sliding arc groove (7), one end of the positioning slider (9) is connected to the connecting slider (8), and the other end passes through the supporting diagonal rod (44) and is threadedly connected to the positioning plate (10), and the positioning plate (10) is tightly pressed against the supporting diagonal rod (44).

7. The combined steel axial force support device according to claim 1, characterized in that: Two sliding blocks (51) are slidably arranged in the support sleeve rod (41), the two sliding blocks (51) are arranged between the two support cylinders (43) and are connected to the two support cylinders (43) in a one-to-one correspondence, and the support sleeve rod (41) is provided with an adjustment component (5) for driving the two sliding blocks (51) to move in a direction of approaching or moving away from each other.

8. The combined steel axial force support device according to claim 1, characterized in that: Two groups of the support components (4) are arranged between the two opposite enclosure walls (2), and the two groups of the support components (4) are arranged correspondingly in the vertical direction.

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