Steel support anti-falling safety mechanism

Abstract

The utility model discloses a steel support anti-falling safety mechanism which comprises two sets of hanging components, each hanging component comprises a fixing plate, a supporting plate and a connecting support, the supporting plates are perpendicularly arranged on the fixing plates, the connecting supports are used for connecting the fixing plates and the supporting plates, and the fixing plates are connected with the supporting plates through the connecting supports. A key-shaped hole is formed in the fixing plate piece, and a clamping piece is arranged on the fixing plate piece. According to the utility model, the hanging component is tightly clamped with the enclosing purlin through the clamping groove and is matched with the clamp for further stabilization, so that the accidental falling of the steel support caused by loose connection is effectively prevented, the combination of the steel strand inhaul cable and the anchorage device of the hanging component provides reliable lifting and limiting effects for the steel support from the lower part, the safety of a construction site is greatly improved, and the safety of the construction site is improved. And casualties and engineering accident risks caused by falling of the steel support are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure anti -fall structure technical field especially relates to a steel support anti -fall safety mechanism. BACKGROUND

[0002] In the traditional steel support structure system, the connection mode between the steel support and the profiled steel surrounding purlin is relatively simple, and is mostly dependent on ordinary bolts or welding and other fixing means. However, these conventional connection modes expose many defects under complex engineering environment. For example, in the long-term construction process, due to the settlement, displacement change of the soil body around the foundation pit and the influence of factors such as vibration and impact in the construction process, the ordinary bolt connection is prone to looseness, which leads to the decline of the stability of the steel support and the existence of falling risk. Although the welding connection has high initial strength, it lacks flexibility in the later maintenance, adjustment and response to dynamic load changes. Once a small crack or damage occurs in the welding position, it may quickly expand, endangering the safety of the entire steel support system.

[0003] In addition, for the displacement control of the steel support in the vertical direction, the traditional technical means is often not accurate and effective. The lack of specially designed anti-falling and displacement limiting devices makes the steel support have a large vertical displacement when subjected to accidental load or uneven settlement of the soil body, thereby damaging the integrity of the foundation pit enclosure structure and causing serious accidents such as foundation pit collapse. Therefore, there is an urgent need for an innovative steel support anti-falling safety mechanism and a construction method adapted thereto to solve the problems of unstable steel support connection, poor anti-falling performance, insufficient vertical displacement control and other problems in the prior art, to ensure the safe and efficient construction of the foundation pit project, improve the overall quality and safety of the construction project, and therefore a steel support anti-falling safety mechanism is proposed to solve the above problems. SUMMARY

[0004] The purpose of the utility model is to solve the above-mentioned problems, and provide a steel support anti-falling safety mechanism to realize the safe and efficient construction of the foundation pit project and improve the overall quality and safety of the construction project.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a steel support anti-falling safety mechanism, comprising:

[0006] The hanging component is two groups, the hanging component comprises a fixed plate, a support plate and a connecting bracket, the support plate is vertically arranged on the fixed plate, the connecting bracket is used for connecting the fixed plate and the support plate, the fixed plate is provided with a key-shaped hole, and the fixed plate is provided with a clamping piece;

[0007] The clamps are arranged on the hanging members through key-shaped holes, and the hanging members are fixed on the encircling purlins through the clamps and the clamping pieces;

[0008] The hanging member comprises a steel strand cable and an anchor, and the support plate member is provided with a limiting hole, the steel strand cable is fixed in the limiting hole on the support plate member through the anchor, and the steel strand cable is used for bearing the steel support;

[0009] The fixed welding piece is fixed on the steel pile plate.

[0010] The flower basket bolt is provided with connecting hooks at two ends, and the flower basket bolt is connected with the fixed welding piece and the hanging member through the connecting hooks.

[0011] Further, a plurality of limiting holes are arranged on the support plate member, and the plurality of limiting holes are equidistantly distributed.

[0012] The key-shaped hole is long strip-shaped.

[0013] Further, the clamp comprises an adjusting bolt, an elastic washer, a sliding block and a pressing plate, the sliding block is vertically slid in the key-shaped hole, and the position of the clamp is adjusted.

[0014] The sliding block is provided with a threaded hole, and the threaded hole is matched with the thread of the adjusting bolt.

[0015] The pressing plate is provided with a through hole, the elastic washer is arranged between the sliding block and the pressing plate, the adjusting bolt passes through the pressing plate, the elastic washer and the sliding block, and the position of the clamp is fixed through cooperation of the adjusting bolt and the sliding block.

[0016] Further, the clamping piece is arranged at the bottom of the side towards the encircling purlin, and the clamping piece is provided with a clamping groove matched with the encircling purlin.

[0017] Further, the adjusting bolt is provided with a spring matched with the pressing plate, and the spring is used to provide axial pre-tightening force.

[0018] Further, the fixed welding piece is welded on the steel pile plate, one end of the flower basket bolt is connected with the fixed welding piece through a steel wire rope, the other end of the flower basket bolt passes through the key-shaped hole and is connected with the hanging member through the steel wire rope, and the flower basket bolt is used to provide pulling force to the key-shaped hole.

[0019] The utility model has the advantages of the following beneficial effects:

[0020] 1. Excellent anti-falling performance, the hanging component is tightly clamped with the surrounding purlin through the clamping groove, and is further stabilized by cooperating with the clamp, effectively preventing the accidental falling of the steel support due to loose connection, the steel strand cable of the hanging component and the anchor combination provide reliable lifting and limiting effect to the steel support from below, greatly improving the safety of the construction site, reducing the risk of personnel casualties and engineering accidents caused by the falling of the steel support;

[0021] 2. Reliable connection stability, the key-shaped hole and the limiting hole designed on the steel plate enable the clamp and the hanging component to be accurately installed, and the stress is evenly and reasonably distributed when the components work cooperatively, effectively avoiding the connection failure problem caused by local stress concentration; the spring at one end of the adjusting bolt has the characteristics of anti-loosening and compensating axial pre-tightening force, can automatically adapt to the change of pre-tightening force caused by factors such as material deformation and temperature change during long-term use, always maintains the tightness of the connection, and ensures the reliability and durability of the entire steel support connection system;

[0022] 3. Good adaptability and adjustability, the design of the clamping groove of the hanging component and the clamp enables it to adapt to surrounding purlins of different specifications and shapes, has wide applicability, and is convenient and fast to install and adjust, reduces the construction troubles caused by material differences, and improves the construction efficiency; the sliding block in the clamp can vertically slide in the key-shaped hole, and the height position of the clamp can be flexibly adjusted according to the actual installation demand, facilitating accurate installation and positioning of the steel support under different working conditions;

[0023] 4. The setting of the basket bolt further enhances the adjustability of the entire mechanism, by adjusting the tension of the basket bolt, the stress state of the steel support can be fine-tuned according to the actual engineering situation, so that it can better adapt to various complex stress changes in the foundation pit support process, and optimize the mechanical properties of the entire foundation pit support structure. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is an implementation structure schematic view of the utility model;

[0025] Figure 2 It is an overall structure schematic view of the utility model;

[0026] Figure 3 It is a partial side structure schematic view of the utility model;

[0027] Figure 4 It is an overall structure side schematic view of the utility model;

[0028] Figure 5 It is an explosion schematic view of the clamp structure of the utility model;

[0029] In the drawing:

[0030] 01 steel pile plate; 02 surrounding purlin; 03 steel support;

[0031] 1, hanging component; 11, fixed plate; 111, key-shaped hole; 112, clamping piece; 12, support plate; 121, limiting hole; 13, connecting bracket;

[0032] 2, clamp; 21, adjusting bolt; 211, spring; 22, elastic washer; 23, sliding block; 24, pressing plate;

[0033] 3, hanging component; 31, steel strand cable; 32, anchor;

[0034] 4, fixed welding piece;

[0035] 5, basket bolt. DETAILED DESCRIPTION

[0036] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0037] Please refer to Figures 1-5 The utility model discloses a kind of steel support anti-falling safety mechanism, comprising:

[0038] Hanging component 1, the number of the hanging component 1 is two groups, the hanging component 1 includes fixed plate 11, support plate 12 and connecting bracket 13, the support plate 12 is vertically arranged on fixed plate 11, the connecting bracket 13 is used to connect fixed plate 11 and support plate 12, the fixed plate 11 is provided with key-shaped hole 111, and the fixed plate 11 is provided with clamping piece 112;

[0039] Clamp 2, the clamp 2 is arranged on the hanging component 1 by key-shaped hole 111, and the hanging component 1 is fixed on the surrounding purlin 02 by the clamp 2 and clamping piece 112;

[0040] Hanging component 3, the hanging component 3 includes steel strand cable 31 and anchor 32, the support plate 12 is provided with limiting hole 121, the steel strand cable 31 is fixed in the limiting hole 121 on support plate 12 by anchor 32, and the steel strand cable 31 is used to bear steel support 03;

[0041] Fixed welding piece 4, the fixed welding piece 4 is fixed on steel pile plate 01;

[0042] The flower basket bolt 5 is provided with a connecting hook at both ends, and the connecting hook connects and fixes the welding piece 4 and the hanging component 1.

[0043] Further, a plurality of limiting holes 121 are arranged on the support plate 12.

[0044] The key-shaped hole 111 is long strip-shaped.

[0045] In the embodiment, the hanging component 1 is hung and fixed on the surrounding purlin 02, the hanging component 1 is welded by mutually perpendicular steel plates, and connecting supports 13 are welded between the steel plates to improve the overall carrying capacity; the steel plates are provided with key-shaped holes 11 and limiting holes 12 at specified positions according to their functions, the key-shaped holes 11 provide installation space for the clamp 2, and the limiting holes 12 are arranged side by side in a specified number according to a design distance to facilitate installation of the suspension component 3.

[0046] Further, the clamp 2 includes an adjusting bolt 21, an elastic washer 22, a sliding block 23 and a pressing plate 24, the sliding block 23 is vertically slid in the key-shaped hole 111 to adjust the position of the clamp 2.

[0047] The sliding block 23 is provided with a threaded hole 231, and the threaded hole 231 is matched with the thread of the adjusting bolt 21.

[0048] The pressing plate 24 is provided with a through hole, the elastic washer 22 is located between the sliding block 23 and the pressing plate 24, the adjusting bolt 21 passes through the pressing plate 24, the elastic washer 22 and the sliding block 23, and the position of the clamp 2 is fixed by cooperation of the adjusting bolt 21 and the sliding block 23.

[0049] It should be further explained that the clamping piece 112 is arranged at the bottom of one side facing the surrounding purlin 02, and the clamping piece 112 is provided with a clamping groove matched with the surrounding purlin 02.

[0050] In the embodiment, the clamping piece 112 cooperates with the clamp 2 to fix the hanging component 1, improves the stability of the connection, and avoids the failure of the clamp 2.

[0051] It should be further explained that the adjusting bolt 21 is provided with a spring 211 abutting against the pressing plate 24, and the spring 211 provides axial pre-tightening force.

[0052] Specifically, the fixed weld 4 is welded on the steel pile plate 01, one end of the basket bolt 5 is connected with the fixed weld 4 through a steel wire rope, the other end of the basket bolt 5 is connected with the hanging member 1 through the steel wire rope passing through the key-shaped hole 111, and the basket bolt 5 is used to provide tension to the key-shaped hole 111. Through the above structure, the basket bolt 5 can be adjusted to play a role of pulling together.

[0053] In the embodiment, the hanging member 3 is composed of a steel strand cable 31 and an anchor 32. The steel strand cable 31 is suspended below the steel support 03, and the two ends are respectively passed through the limiting hole 121 and anchored with the hanging member 1 through the anchor 32 to form an integral whole, so as to prevent the steel support 8 from falling or having a large vertical displacement, and improve the stability of the enclosure structure and the support structure.

[0054] Finally, it should be pointed out that the specific construction steps are as follows:

[0055] S1, foundation pit enclosure main structure construction: complete the driving of the steel sheet pile 01, the construction of the surrounding purlin 02 and the hoisting and positioning of the steel support 03 according to the design requirements.

[0056] S2, hanging member installation: adjust the adjusting bolt 21 of the clamp 2 to make the clamp 2 in a relaxed and lifted state, make the steel plate of the hanging member 1 in the vertical direction fit with the surrounding purlin 02, then make the clamping groove 13 at the bottom of the hanging member 1 clamped with the bottom of the surrounding purlin 02, lower the clamp 2 and tighten the adjusting bolt 21, and complete the installation of the hanging member 1.

[0057] S3, hanging member installation: prepare a steel strand cable 31 with appropriate length, pass the two ends of the steel strand cable 31 through the limiting hole 11 of the hanging member 1 respectively, and reserve enough anchoring distance, and anchor the steel strand cable 31 on the hanging member 1 through the anchor 32 to form an integral whole.

[0058] S4, basket bolt installation: weld the fixed weld 4 on the surface of the steel sheet pile 01 according to the positions of the steel support 03 and the hanging member 1, prepare two steel wire ropes with appropriate length, one steel wire rope is connected with the basket bolt 5 on the fixed weld 4, and the other steel wire rope is connected with the basket bolt 5 on the hanging member 1 through the key-shaped hole 11, adjust the basket bolt 5 to generate tension and play a role of pulling together.

[0059] S5, quality inspection: perform quality inspection on each structure of the completed anti-falling mechanism, including appearance inspection, size measurement and mechanical property test of the connection part, to ensure that the connection quality meets the design requirements.

[0060] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0061] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, and when the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0062] In addition, "multiple" means more than two.

[0063] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A steel-supported fall-prevention safety mechanism, characterized in that, include: The number of the hanging components (1) is two sets. The hanging components (1) include a fixed plate (11), a support plate (12) and a connecting bracket (13). The support plate (12) is vertically arranged on the fixed plate (11). The connecting bracket (13) is used to connect the fixed plate (11) and the support plate (12). The fixed plate (11) is provided with a key hole (111) and a snap-fit ​​component (112). The clamp (2) is set on the hanging member (1) through the key hole (111), and the hanging member (1) is fixed to the waler (02) by the clamp (2) and the snap-fit ​​member (112); The suspension component (3) includes a steel strand cable (31) and an anchor (32). A limiting hole (121) is provided on the support plate (12). The steel strand cable (31) is fixed in the limiting hole (121) on the support plate (12) by the anchor (32). The steel strand cable (31) is used to support the steel support (03). Fixed weldment (4), the fixed weldment (4) is fixed on the steel pile plate (01); Turnbuckle (5), with connecting hooks at both ends, the turnbuckle (5) connects the fixed weldment (4) and the hanging component (1) through the connecting hooks.

2. The steel-supported fall arrest safety mechanism according to claim 1, characterized in that: The support plate (12) has multiple sets of limiting holes (121) which are equidistantly distributed. The keyway (111) is elongated.

3. The steel-supported fall arrest safety mechanism according to claim 2, characterized in that: The clamp (2) includes an adjusting bolt (21), an elastic washer (22), a slider (23) and a pressure plate (24). The slider (23) slides vertically within the keyhole (111) to adjust the position of the clamp (2). The slider (23) is provided with a threaded hole (231), which is adapted to the thread of the adjusting bolt (21); The clamping plate (24) has a through hole. The elastic washer (22) is located between the slider (23) and the clamping plate (24). The adjusting bolt (21) passes through the clamping plate (24), the elastic washer (22) and the slider (23). The adjusting bolt (21) cooperates with the slider (23) to fix the position of the clamp (2).

4. The steel-supported fall arrest safety mechanism according to claim 1, characterized in that: The snap-fit ​​member (112) is located at the bottom of the side facing the waler (02), and the snap-fit ​​member (112) is provided with a snap-fit ​​groove that is compatible with the waler (02).

5. The steel-supported fall arrest safety mechanism according to claim 3, characterized in that: The adjusting bolt (21) is fitted with a spring (211) that abuts against the pressure plate (24), the spring (211) being used to provide axial preload.

6. The steel-supported fall arrest safety mechanism according to claim 1, characterized in that: The fixed weldment (4) is welded onto the steel pile plate (01). One end of the turnbuckle (5) is connected to the fixed weldment (4) via a steel wire rope. The other end of the turnbuckle (5) is connected to the hanging member (1) via a steel wire rope passing through the key hole (111). The turnbuckle (5) is used to provide tension to the limiting hole (121).

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