Steel support structure for foundation pit construction

Abstract

The utility model relates to the technical field of building components, and provides a steel support structure for foundation pit construction, which comprises a middle connecting section, an end connecting section, a displacement sensor, a control module and a push-pull component, the end part connecting section is arranged between the wall body and the middle connecting section; the displacement sensor is arranged between the end part connecting section and the wall body; the output end of the displacement sensor is electrically connected with the input end of the control module; the push-pull assembly is arranged between the end connecting section and the middle connecting section, the output end of the control module is electrically connected with the controlled end of the push-pull assembly, and the push-pull assembly is used for enabling the end connecting section to be close to or away from the middle connecting section. By means of the technical scheme, the problems that in the related technology, the foundation pit wall provided with the steel supporting structure collapses or moves backwards, the pressure of the wall on the steel supporting structure can be increased or reduced, gaps between the two ends of the steel supporting structure and the wall can be changed, and the foundation stability can be affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building components, and in particular to a steel supporting structure for foundation pit construction. Background Art

[0002] The foundation pit is a soil pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. In foundation pit engineering, in order to prevent the foundation pit from collapsing, a steel support structure is usually installed in the foundation pit to improve the stability of the foundation pit. The current steel support structure is fixed on the wall of the foundation pit at both ends. Due to the excavation of another foundation pit near the foundation pit or other factors, the foundation pit wall with the steel support structure installed may collapse or move backward, thereby increasing or decreasing the pressure of the wall on the steel support structure, causing the gap between the two ends of the steel support structure and the wall to change, which will affect the stability of the foundation. Utility Model Content

[0003] The utility model proposes a steel support structure for foundation pit construction, which solves the problem in the related art that a foundation pit wall installed with a steel support structure collapses or moves backward, which increases or decreases the pressure of the wall on the steel support structure, causing the gap between the two ends of the steel support structure and the wall to change, thus affecting the stability of the foundation.

[0004] The technical solution of the utility model is as follows: a steel support structure for foundation pit construction, arranged between the walls on both sides of the foundation pit, the key is: including:

[0005] An intermediate connecting section, the intermediate connecting section being transversely arranged in the foundation pit;

[0006] An end connecting section, wherein the end connecting section is arranged between the wall and the middle connecting section;

[0007] A displacement sensor, wherein the displacement sensor is arranged between the end connection section and the wall;

[0008] A control module, wherein the output end of the displacement sensor is electrically connected to the input end of the control module;

[0009] A push-pull assembly is provided between the end connecting section and the middle connecting section, the output end of the control module is electrically connected to the controlled end of the push-pull assembly, and the push-pull assembly is used to make the end connecting section approach or move away from the middle connecting section.

[0010] The push-pull assembly comprises:

[0011] A rotation drive mechanism, wherein the rotation drive mechanism is arranged inside the middle connecting section, and an output end of the control module is electrically connected to a controlled end of the rotation drive mechanism;

[0012] A screw, one end of which is connected to the output shaft of the rotary drive mechanism and the other end of which is a free end;

[0013] A screw sleeve is arranged on the end connecting section and is threadedly connected to the screw rod.

[0014] The threaded sleeve forms a sliding fit with the middle connecting section.

[0015] It also includes a slider, which is arranged on the screw sleeve, and all the sliders are evenly arranged along the circumferential direction of the screw sleeve. A sliding groove is opened on the inner wall of the middle connecting section, and the slider is slidably arranged in the sliding groove.

[0016] The end connection section comprises:

[0017] A first connecting seat, the screw sleeve is arranged on the first connecting seat, the screw sleeve is located inside the middle connecting section, a receiving groove is provided at one end of the first connecting seat facing the middle connecting section, and the screw rod is plugged into the receiving groove;

[0018] A second connecting seat, wherein the second connecting seat is arranged between the first connecting seat and the wall, and the diameter of the second connecting seat is larger than the inner diameter of the middle connecting section.

[0019] It also includes a limit pin, one end of which is located on the outside of the middle connecting section, and the other end of which passes through the side wall of the middle connecting section and extends into the inside of the middle connecting section, so as to prevent the screw sleeve from slipping out of the middle connecting section. The limit pin and the middle connecting section are detachably connected.

[0020] The limiting pin is threadedly connected to the middle connecting section.

[0021] The number of the limit pins is at least two, and all the limit pins are arranged along the circumferential direction of the middle connecting section.

[0022] An accommodating groove is provided at one end of the end connecting section facing the middle connecting section, and the screw rod is plugged into the accommodating groove.

[0023] Also includes,

[0024] A connecting flange, wherein the connecting flange is arranged on the end connecting section, and the connecting flange is located at an end of the end connecting section away from the middle connecting section;

[0025] A rib plate is arranged between the connecting flange and the end connecting section.

[0026] The working principle and beneficial effects of the utility model are as follows: the middle connecting section is horizontally arranged in the foundation pit; the end connecting section is arranged between the wall and the middle connecting section; the displacement sensor is arranged between the end connecting section and the wall; the push-pull assembly is arranged between the end connecting section and the middle connecting section, the output end of the displacement sensor is electrically connected to the input end of the control module; the output end of the control module is electrically connected to the controlled end of the push-pull assembly, and the push-pull assembly is used to make the end connecting section approach or move away from the middle connecting section. When the wall collapses or moves backward, the gap between the steel support structure and the wall will shrink or increase accordingly, the displacement sensor activates the push-pull assembly through the control module, and the push-pull assembly pulls or pushes the end connecting section to make it approach or move away from the middle connecting section, so that the steel support structure effectively plays a supporting role, which can improve the stability of the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] Figure 2 for Figure 1 A is an enlarged view of the middle image.

[0030] In the figure: 1. wall, 2. middle connecting section, 3. end connecting section, 3-1. first connecting seat, 3-2. second connecting seat, 4. displacement sensor, 5. control module, 6. push-pull assembly, 6-1. rotation drive mechanism, 6-2. screw, 6-3. screw sleeve, 7. slider, 8. slide groove, 9. receiving groove, 10. limit pin, 11. connecting flange, 12. rib plate. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0032] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0033] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] Example, see Figure 1~Figure 2 , is an embodiment of the utility model, which proposes a steel support structure for foundation pit construction, which is arranged between walls 1 on both sides of the foundation pit, including a middle connecting section 2, an end connecting section 3, a displacement sensor 4, a control module 5, and a push-pull component 6. The middle connecting section 2 is horizontally arranged in the foundation pit; the end connecting section 3 is arranged between the wall 1 and the middle connecting section 2; the displacement sensor 4 is arranged between the end connecting section 3 and the wall 1; the output end of the displacement sensor 4 is electrically connected to the input end of the control module 5; the push-pull component 6 is arranged between the end connecting section 3 and the middle connecting section 2, and the output end of the control module 5 is electrically connected to the controlled end of the push-pull component 6, and the push-pull component 6 is used to make the end connecting section 3 approach or move away from the middle connecting section 2.

[0036] Further, the push-pull assembly 6 includes a rotary drive mechanism 6-1, a screw rod 6-2, and a screw sleeve 6-3. The rotary drive mechanism 6-1 is arranged inside the middle connection section 2, and the output end of the control module 5 is electrically connected to the controlled end of the rotary drive mechanism 6-1; one end of the screw rod 6-2 is connected to the output shaft of the rotary drive mechanism 6-1, and the other end is a free end; the screw sleeve 6-3 is arranged on the end connection section 3, and the screw sleeve 6-3 is threadedly connected to the screw rod 6-2. Figure 1 As shown, when the wall 1 collapses or moves backward, the gap between the steel support structure and the wall 1 will shrink or increase accordingly. The displacement sensor 4 controls the module 5 so that the rotary drive mechanism 6-1 drives the screw 6-2 to rotate, so that the screw sleeve 6-3 moves horizontally to the left or right along the screw 6-2. The screw sleeve 6-3 pulls or pushes the end connecting section 3 to make it close to or away from the middle connecting section 2. The mechanized operation saves time and effort.

[0037] Furthermore, the screw sleeve 6-3 forms a sliding fit with the middle connecting section 2. Figure 1 and Figure 2As shown, the screw sleeve 6-3 slides along the middle connecting section 2, and the middle connecting section 2 can support and guide the screw sleeve 6-3, so that the screw sleeve 6-3 is more stable during the movement.

[0038] Furthermore, it also includes a slider 7, which is arranged on the screw sleeve 6-3, and all the sliders 7 are evenly arranged along the circumferential direction of the screw sleeve 6-3. A slide groove 8 is opened on the inner wall of the middle connecting section 2, and the slider 7 is slidably arranged in the slide groove 8. Figure 1 and Figure 2 As shown, the slider 7 slides in the slide groove 8, and under the premise of ensuring effective support and guidance for the screw sleeve 6-3, the contact area between the screw sleeve 6-3 and the middle connecting section 2 is reduced as much as possible, which can reduce the friction between the screw sleeve 6-3 and the middle connecting section 2 during movement, saving more effort.

[0039] Furthermore, the end connection section 3 includes a first connection seat 3-1, a second connection seat 3-2, a screw sleeve 6-3 is arranged on the first connection seat 3-1, the screw sleeve 6-3 is located inside the middle connection section 2, and a receiving groove 9 is opened at one end of the first connection seat 3-1 facing the middle connection section 2, and the screw 6-2 is plugged into the receiving groove 9; the second connection seat 3-2 is arranged between the first connection seat 3-1 and the wall 1, and the diameter of the second connection seat 3-2 is larger than the inner diameter of the middle connection section 2. Figure 1 and Figure 2 As shown, when the overall length of the steel support structure needs to be reduced, the screw sleeve 6-3 drives the first connecting seat 3-1 to move toward the inside of the middle connecting section 2, and the screw rod 6-2 moves toward the accommodating groove 9. When the overall length of the steel support structure needs to be increased, the screw sleeve 6-3 drives the first connecting seat 3-1 to move toward the outside of the middle connecting section 2, and the screw rod 6-2 moves toward the outside of the accommodating groove 9. The middle connecting section 2 can play a guiding and limiting role for the end connecting section 3, and the stability is better.

[0040] Furthermore, it also includes a limit pin 10, one end of which is located outside the middle connecting section 2, and the other end of which passes through the side wall of the middle connecting section 2 and extends into the middle connecting section 2, so as to prevent the screw sleeve 6-3 from slipping out of the middle connecting section 2. The limit pin 10 is detachably connected to the middle connecting section 2. Figure 1 and Figure 2 As shown, limit pins 10 are provided at both ends of the middle connecting section 2. The limit pins 10 can block and limit the screw sleeve 6-3 to prevent the screw sleeve 6-3 from slipping out of the middle connecting section 2, which is safer.

[0041] Furthermore, the limiting pin 10 is threadedly connected to the middle connecting section 2, the connection is firm and reliable, and the assembly and disassembly is convenient and fast, saving time and effort.

[0042] Furthermore, the number of the limiting pins 10 is at least two, and all the limiting pins 10 are arranged along the circumferential direction of the middle connecting section 2. Figure 1 and Figure 2 As shown, a plurality of limit pins 10 are used together to block the screw sleeve 6 - 3 , so that the screw sleeve 6 - 3 is subjected to more uniform force and has better stability.

[0043] Furthermore, it also includes a connecting flange 11 and a rib plate 12. The connecting flange 11 is arranged on the end connecting section 3. The connecting flange 11 is located at the end of the end connecting section 3 away from the middle connecting section 2. The rib plate 12 is arranged between the connecting flange 11 and the end connecting section 3. Figure 1 As shown, the connection flange 11 is used to facilitate installation of the steel support structure on the wall 1 , and the rib plate 12 can make the connection between the connection flange 11 and the end connection section 3 more firm and reliable.

[0044] In this embodiment, end connection sections 3 are arranged between the left and right ends of the middle connection section 2 and the wall 1, and a displacement sensor 4 is arranged at one end of the end connection section 3 facing the wall 1. The control module 5 and the rotation drive mechanism 6-1 are arranged inside the middle connection section 2, and the left and right rotation drive mechanisms 6-1 are connected with screws 6-2. The screw sleeve 6-3 arranged on the first connection seat 3-1 is coaxially arranged with the screw 6-2 and threadedly connected. When the wall 1 collapses or moves backward, the gap between the steel support structure and the wall 1 will shrink or increase accordingly. The displacement sensor 4 drives the rotation drive mechanism 6-1 to rotate the screw 6-2 through the control module 5, so that the screw sleeve 6-3 moves horizontally to the left or right along the screw 6-2, and the screw sleeve 6-3 pulls or pushes the end connection section 3 to make it close to or away from the middle connection section 2, so that the steel support structure effectively plays a supporting role and can improve the stability of the foundation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A steel support structure for foundation pit construction, arranged between walls (1) on both sides of the foundation pit, characterized in that: include, An intermediate connecting section (2), the intermediate connecting section (2) being arranged transversely in the foundation pit; An end connecting section (3), wherein the end connecting section (3) is arranged between the wall (1) and the middle connecting section (2); A displacement sensor (4), the displacement sensor (4) being arranged between the end connection section (3) and the wall (1); A control module (5), wherein the output end of the displacement sensor (4) is electrically connected to the input end of the control module (5); A push-pull component (6), the push-pull component (6) being arranged between the end connecting section (3) and the middle connecting section (2), the output end of the control module (5) being electrically connected to the controlled end of the push-pull component (6), the push-pull component (6) being used to move the end connecting section (3) closer to or farther away from the middle connecting section (2).

2. A steel support structure for foundation pit construction according to claim 1, characterized in that: The push-pull assembly (6) comprises: A rotary drive mechanism (6-1), the rotary drive mechanism (6-1) being arranged inside the middle connecting section (2), the output end of the control module (5) being electrically connected to a controlled end of the rotary drive mechanism (6-1); A screw rod (6-2), one end of the screw rod (6-2) being connected to the output shaft of the rotary drive mechanism (6-1) and the other end being a free end; A screw sleeve (6-3), wherein the screw sleeve (6-3) is arranged on the end connection section (3), and the screw sleeve (6-3) is threadedly connected to the screw rod (6-2).

3. A steel support structure for foundation pit construction according to claim 2, characterized in that: The threaded sleeve (6-3) forms a sliding fit with the middle connecting section (2).

4. A steel support structure for foundation pit construction according to claim 3, characterized in that: It also comprises a sliding block (7), the sliding block (7) being arranged on the screw sleeve (6-3), all the sliding blocks (7) being evenly arranged along the circumferential direction of the screw sleeve (6-3), a sliding groove (8) being provided on the inner wall of the middle connecting section (2), the sliding block (7) being slidably arranged in the sliding groove (8).

5. The steel support structure for foundation pit construction according to claim 2, characterized in that: The end connection section (3) comprises: A first connecting seat (3-1), the screw sleeve (6-3) being arranged on the first connecting seat (3-1), the screw sleeve (6-3) being located inside the middle connecting section (2), a receiving groove (9) being provided at one end of the first connecting seat (3-1) facing the middle connecting section (2), the screw rod (6-2) being plugged into the receiving groove (9); A second connecting seat (3-2), the second connecting seat (3-2) being arranged between the first connecting seat (3-1) and the wall (1), the diameter of the second connecting seat (3-2) being larger than the inner diameter of the middle connecting section (2).

6. The steel support structure for foundation pit construction according to claim 3, characterized in that: It also includes a limit pin (10), one end of which is located outside the middle connecting section (2), and the other end of which passes through the side wall of the middle connecting section (2) and extends into the inside of the middle connecting section (2), so as to prevent the screw sleeve (6-3) from slipping out of the middle connecting section (2), and the limit pin (10) and the middle connecting section (2) are detachably connected.

7. A steel support structure for foundation pit construction according to claim 6, characterized in that: The limiting pin (10) is threadedly connected to the middle connecting section (2).

8. The steel support structure for foundation pit construction according to claim 6, characterized in that: The number of the limit pins (10) is at least two, and all of the limit pins (10) are arranged along the circumferential direction of the middle connecting section (2).

9. The steel support structure for foundation pit construction according to claim 1, characterized in that: It also comprises a connecting flange (11), wherein the connecting flange (11) is arranged on the end connecting section (3), and the connecting flange (11) is located at an end of the end connecting section (3) away from the middle connecting section (2).

10. A steel support structure for foundation pit construction according to claim 9, characterized in that: It also comprises a rib plate (12), wherein the rib plate (12) is arranged between the connecting flange (11) and the end connecting section (3).

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