Servo inclined throwing and supporting device capable of being detachably connected

Abstract

The utility model discloses a servo inclined throwing support device capable of being detachably connected, which comprises a plurality of sections of steel supports with flange plates at the two ends, every two adjacent steel supports are detachably connected through high-strength bolts penetrating through the flange plates, and the steel supports at the head section and the tail section are respectively provided with a steel cushion box and a servo axial force adjusting system. The servo axial force adjusting system comprises a hydraulic jack, a mechanical sensor and a digital controller, the steel cushion box is welded to an enclosure structure through an embedded steel plate, and the servo jack is arranged at the bottom of a foundation pit through a support. The steel supports are connected through the high-strength bolts, the problem that the supporting reliability of the enclosure structure is affected by deformation or bending due to the fact that a hot area exists in the supporting process in a welding mode can be solved, disassembly and assembly are convenient, hoisting removal or transportation removal is convenient, and the construction period is shortened. Self-adaptive adjustment of the axial force can be conducted according to local tiny deformation of the enclosure structure, the safety of a foundation pit is guaranteed, and the beneficial effects of being reliable, safe and stable in supporting are achieved.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology in building engineering, and in particular to a detachable servo inclined support device. Background Technology

[0002] In foundation pit support engineering, to ensure the safety of the foundation pit retaining structure and reduce foundation pit deformation, steel pipe inclined bracing is often used as a support component to provide inclined support for the retaining structure. Traditional inclined bracing is usually made of multiple welded steel pipes. A heat-affected zone exists at the weld joints, leading to deformation or bending at these joints after the inclined bracing is subjected to stress. This affects the reliability of the inclined bracing's support for the retaining structure and its axial force support effect. Furthermore, when constructing a basement structure within the foundation pit causes localized micro-deformation of the retaining structure, the inclined bracing may detach from the retaining structure, resulting in support failure. This leads to uneven stress distribution among the inclined bracing components, negatively impacting the safety and durability of the foundation pit and affecting construction safety. Additionally, the welded steel pipe components of the inclined bracing are lengthy and difficult to remove, making dismantling a challenging process. Utility Model Content

[0003] The purpose of this utility model is to provide a detachable servo inclined support device to solve the problems of welded inclined supports having heat-affected zones that deform or bend during support, resulting in poor reliability and axial force support effect of the retaining structure; welded inclined supports being unable to adjust axial force according to local micro-deformation of the retaining structure, leading to failure of the retaining structure support and affecting the safety of the foundation pit; and welded inclined supports being too long and inconvenient to remove during dismantling operations.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a detachable servo inclined support device, which is inclinedly supported between the bottom of the foundation pit and the retaining structure. The servo inclined support device includes several steel supports with flanges at both ends. Adjacent steel supports are detachably connected by high-strength bolts passing through the flanges. The first and last steel supports are respectively equipped with steel pad boxes and servo axial force adjustment systems. The servo axial force adjustment system includes hydraulic jacks, mechanical sensors, and digital controllers. The steel pad boxes are welded to the retaining structure through pre-embedded steel plates. The servo jacks are set at the bottom of the foundation pit through supports.

[0005] Furthermore, the detachable servo inclined propulsion device provided by this utility model also includes a telescopic box, which is installed on the steel support that is connected to the servo axial force adjustment system, and the servo axial force adjustment system is installed inside the telescopic box.

[0006] Furthermore, in the detachable servo-assisted inclined support device provided by this utility model, the support has an isosceles trapezoidal profile, and the servo jack is installed on the plane containing the waist of the support facing the enclosure structure; or the support has a right-angled trapezoidal profile, and the servo jack is installed on the plane containing the non-right-angled waist of the support facing the enclosure structure; or the support has a triangular slope, and the servo jack is installed on the slope of the support facing the enclosure structure.

[0007] Furthermore, in the detachable servo inclined propulsion device provided by this utility model, the steel support is a steel pipe.

[0008] Furthermore, in the detachable servo inclined support device provided by this utility model, the steel pad box passes through the inner lining wall of the enclosure structure, and a water-stop steel plate is provided on the steel pad box located inside the inner lining wall.

[0009] Furthermore, in the detachable servo inclined propulsion device provided by this utility model, the mounting surfaces of the steel pad box and the steel support are provided with flanges, and the steel pad box and the steel support are detachably connected by high-strength bolts passing through the flanges.

[0010] Furthermore, the detachable servo inclined propulsion device provided by this utility model includes a steel box comprising a steel section with one end being inclined and the other end being flat. An end plate is welded to the flat side of the steel section, and a stiffening plate is welded between the steel section and the end plate. A pre-embedded steel plate is welded to one end of the inclined side of the steel section, and a stiffening plate is also welded between the steel section and the pre-embedded steel plate. The end plate is a flange, and the pre-embedded steel plate is embedded in the enclosure structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] The detachable servo-driven inclined support device provided by this utility model allows for detachable connection between adjacent steel supports via high-strength bolts that penetrate the flange. The overall length of the servo-driven inclined support device can be adjusted according to the inclination length between the retaining structure and the bottom of the pit, making it suitable for support at any inclination angle. It also avoids the problems of traditional steel pipe welded inclined supports, where heat zones at the welding joints cause deformation or bending during support, resulting in poor reliability of the retaining structure support and poor axial force support effect. This improves the deformation and compressive strength of the steel support connection nodes, extends service life, and offers the advantages of reliable support and good axial force support effect.

[0013] The detachable servo inclined support device provided by this utility model allows for detachable connection of each steel support through high-strength bolts penetrating the flange, facilitating assembly according to the inclined length. During dismantling operations, each section of steel support can be lifted or transported away by removing the high-strength bolts, which has the advantage of convenient removal, reduces the difficulty of dismantling and assembly, reduces hot work operations, and avoids the problem of difficult and inconvenient overall lifting and removal of welded inclined supports.

[0014] The detachable servo-driven inclined support device provided by this utility model can automatically detect and adjust the axial force between the bottom of the foundation pit and the retaining structure through a servo axial force adjustment system installed on the first or last section of the steel support. It can adapt to the local minor deformation of the retaining structure, thereby ensuring uniform force on the retaining structure. It has the advantages of reliable, stable and safe support, and avoids the problem of support failure caused by the lack of axial force adjustment in traditional inclined support devices, which affects the safety of the foundation pit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the detachable servo inclined propulsion device provided by this utility model in a supported state.

[0016] Figure 2 This is a front view schematic diagram of the steel pad box and its connection with the pre-embedded steel plate.

[0017] Figure 3 This is a side view of the steel pad box.

[0018] As shown in the figure:

[0019] 100. Detachable servo-driven inclined propulsion device;

[0020] 110. Steel pad box; 111. Structural steel; 112. End plate; 113. Stiffening plate;

[0021] 120. Steel support; 121. Flange;

[0022] 130. Telescopic box;

[0023] 140. Servo-driven axial force adjustment system;

[0024] 150. Support;

[0025] 200. Enclosure structure; 210. Embedded steel plate;

[0026] 300. Inner lining wall; 310. Water-stop steel plate;

[0027] 400. Bottom of the foundation pit. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0029] Please refer to Figures 1 to 3 This utility model embodiment provides a detachable servo-driven inclined support device 100. The servo-driven inclined support device 100 is inclinedly supported between the bottom of the foundation pit 400 and the retaining structure 200. The servo-driven inclined support device 100 includes several steel supports 120 with flanges 121 at both ends. Adjacent steel supports 120 are detachably connected by high-strength bolts (not shown) passing through the flanges 121. The first and last steel supports 120 are respectively equipped with steel pad boxes 110 and servo axial force adjustment systems 140. The servo axial force adjustment system 140 includes a hydraulic jack, a mechanical sensor, and a digital controller. The steel pad box 110 is welded to the retaining structure 200 through a pre-embedded steel plate 210. The servo jack is set at the bottom of the foundation pit 400 through a support 150. The mechanical sensor detects the support axial force value of the servo jack in real time and feeds it back to the digital controller. The digital controller controls the servo jack to automatically extend and retract according to the feedback axial force value to automatically compensate for the axial force of the inclined support.

[0030] The detachable servo inclined support device 100 provided in this embodiment of the utility model is detachably connected to adjacent steel supports 120 via high-strength bolts that penetrate flanges 121. The overall length of the servo inclined support device 100 can be adjusted according to the inclination length between the retaining structure 200 and the bottom of the pit 400 to accommodate support at any inclination angle. It also avoids the problems of traditional inclined supports made of welded steel pipes, where the welding joints have heat zones that cause deformation or bending during support, resulting in poor reliability of the retaining structure 200 support and poor axial force support effect. It improves the deformation and compressive strength of the steel support 120 connection joints, extends the service life, and has the advantages of reliable support and good axial force support effect.

[0031] The detachable servo inclined support device 100 provided in this embodiment of the utility model is detachably connected to each steel support 120 by high-strength bolts passing through the flange 121, which facilitates assembly according to the inclined length. During dismantling operations, each section of steel support 120 can be lifted or transported away by removing the high-strength bolts. It has the advantage of easy removal, reduces the difficulty of dismantling and assembly, reduces hot work operations, and avoids the problem of difficult and inconvenient overall lifting and removal of welded inclined supports.

[0032] The detachable servo-driven inclined support device 100 provided in this embodiment of the utility model can automatically detect and adjust the axial force between the bottom of the foundation pit 400 and the retaining structure 200 through the servo axial force adjustment system 140 installed on the first or last section of the steel support 120. It can adapt to the local minor deformation of the retaining structure 200, thereby ensuring uniform force on the retaining structure 200. It has the advantages of reliable, stable and safe support, and avoids the problem of the traditional inclined support device failing due to lack of axial force adjustment, which affects the safety of the foundation pit.

[0033] Please refer to Figure 1 To protect the servo axial force adjustment system 130 of the servo inclined support device 100 from adverse effects of dust in the foundation pit and potential collisions from construction machinery, the detachably connected servo inclined support device 100 provided in this embodiment may further include a telescopic box 130. The telescopic box 130 is mounted on the steel support 120, which is connected to the servo axial force adjustment system 140, and the servo axial force adjustment system 140 is housed within the telescopic box 130. In this case, the servo axial force adjustment system 140 is installed within the telescopic box 130, and the telescopic box 130 synchronously changes position when the servo jack of the servo axial force adjustment system 140 extends or retracts. The telescopic box 130 has limiters at both ends to restrict the maximum extension / retraction stroke of the servo jack.

[0034] Please refer to Figure 1 To facilitate the construction of the support 150, this embodiment of the invention provides a detachable servo-driven inclined support device 100. The support 150 has an isosceles trapezoidal elevation, and the servo jack is installed on the plane containing the waist of the support 150 facing the retaining structure 200. Alternatively, the support 150 can have a right-angled trapezoidal elevation, with the servo jack installed on the plane containing the non-right-angled waist of the support 150 facing the retaining structure 200. Or, the support 150 can have a triangular slope, with the servo jack installed on the slope of the support 150 facing the retaining structure 200. When the foundation pit is narrow, opposing servo-driven inclined support devices 100 can share a single support 150, in which case the servo jacks of the opposing servo-driven inclined support devices 100 are installed on the plane containing the waist of the other side of the support 150.

[0035] Please refer to Figure 1 In order to improve the support strength, the detachable servo inclined support device 100 provided in this embodiment of the utility model can be a steel pipe or H-beam, etc.

[0036] Please refer to Figure 1To improve the waterproofing effect at the intersection of the inner lining wall 300 and the servo-driven inclined support device 100, this embodiment of the invention provides a detachable servo-driven inclined support device 100. A steel pad box 110 passes through the inner lining wall 300 of the enclosure structure 200, and a water-stop steel plate 310 is installed on the steel pad box 110 located within the inner lining wall 300. The water-stop steel plate 310 achieves waterproofing at the connection point between the inner lining wall 300 and the servo-driven inclined support device 100.

[0037] To facilitate the assembly and disassembly of the steel pad box 110 and the steel support 120, the detachable servo inclined propulsion device 100 provided in this embodiment of the utility model has a flange 121 on the mounting surface of the steel pad box 110 and the steel support 120. The steel pad box 110 and the steel support 120 are detachably connected by high-strength bolts passing through the flange 121.

[0038] Please refer to Figures 2 to 3 The detachable servo inclined support device 100 provided in this embodiment of the utility model includes a steel pad box 110 comprising a steel section 111 with one end being inclined and the other end being flat. An end plate 112 is welded perpendicularly to the flat side of the steel section 111. A stiffening plate 113 is welded between the steel section 111 and the end plate 112. A pre-embedded steel plate 210 is welded to one end of the inclined side of the steel section 111, and a stiffening plate 113 is also welded between the steel section 111 and the pre-embedded steel plate 210. The end plate 112 is a flange 121, and the pre-embedded steel plate 210 is embedded within the enclosure structure 200. The steel section 111 can be an H-beam. The steel section 111 enhances its supporting strength. The end plate 112, acting as a flange, facilitates a detachable connection between it and the steel support 120 using high-strength bolts.

[0039] This utility model is not limited to the specific embodiments described above. Obviously, the embodiments described above are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the scope of protection of this utility model. Those skilled in the art can make other levels of modifications and variations to this utility model. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model, this utility model also intends to include these modifications and variations.

Claims

1. A detachably connected servo-inclined throw support device, which is inclinedly disposed between a foundation pit bottom and a retaining structure, characterized in that, The servo inclined support device includes several sections of steel supports with flanges at both ends. Adjacent steel supports are detachably connected by high-strength bolts passing through the flanges. The first and last sections of the steel supports are respectively equipped with steel pad boxes and servo axial force adjustment systems. The servo axial force adjustment system includes hydraulic servo jacks, mechanical sensors, and digital controllers. The steel pad boxes are welded to the retaining structure through pre-embedded steel plates, and the servo jacks are set at the bottom of the pit through supports.

2. A detachable connected servo-inclined-throwing supporting device according to claim 1, characterized in that, It also includes a telescopic box, which is mounted on the steel support to which the servo axial force adjustment system is installed, and the servo axial force adjustment system is located inside the telescopic box.

3. The detachable connected servo-inclined-throw supporting device according to claim 1, characterized in that, The support has an isosceles trapezoidal elevation, and the servo jack is installed on the plane of the side of the support facing the enclosure structure; or the support has a right-angled trapezoidal elevation, and the servo jack is installed on the plane of the non-right-angled side of the support facing the enclosure structure; or the support has a triangular slope, and the servo jack is installed on the slope of the support facing the enclosure structure.

4. The detachably connected servo-driven inclined propulsion device according to claim 1, characterized in that, The steel support is a steel pipe.

5. The detachable connected servo-inclined-throw supporting device according to claim 1, characterized in that, The steel pad box passes through the inner lining wall of the enclosure structure, and a water-stop steel plate is installed on the steel pad box located inside the inner lining wall.

6. The detachable connected servo-inclined-throw supporting device according to claim 1, characterized in that, The steel gasket and the steel support are provided with flanges on their mounting surfaces, and the steel gasket and the steel support are detachably connected by high-strength bolts passing through the flanges.

7. A detachable connected servo-inclined-throwing supporting device according to claim 6, characterized in that, The steel pad box includes a steel section with one end being inclined and the other end being flat. An end plate is welded to the flat side of the steel section, and a stiffening plate is welded between the steel section and the end plate. A pre-embedded steel plate is welded to one end of the inclined side of the steel section, and a stiffening plate is also welded between the steel section and the pre-embedded steel plate. The end plate is a flange, and the pre-embedded steel plate is embedded in the enclosure structure.

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