Steel sheet pile deep foundation pit supporting composite supporting device

By introducing leg guards, reinforcing ribs, protective plates, and a gear and rack transmission system into the deep foundation pit support device using sheet piles, the problems of internal structure adjustment and debris falling into the foundation pit were solved, thereby improving the stability and protective performance of the support device.

CN224031692UActive Publication Date: 2026-03-24XINGFENGYING (FUJIAN) GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing sheet pile deep foundation pit support devices are difficult to automatically adjust when faced with structural adjustments inside the foundation pit at different distances, and are prone to displacement. Furthermore, debris can easily fall into the foundation pit, causing damage to the support structure.

Method used

A deep foundation pit support device for steel sheet piles was designed, including protective legs, reinforcing ribs, protective plates, sliders, a gear and rack transmission system and a motor drive. The gear and rack transmission system enables the lifting and sliding of the protective plates. Combined with the reinforcement components, the robustness and stability of the protective plates are improved, preventing displacement and damage.

Benefits of technology

It enables automatic adjustment of the support distance according to actual needs, avoiding guard plate misalignment and damage, and improving the stability and protective performance of the support device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of foundation pit supporting, and particularly discloses a steel sheet pile deep foundation pit supporting composite supporting device which comprises two sets of leg guards, a plurality of reinforcing ribs arranged between the two sets of leg guards, a top plate movably connected to the tops of the leg guards, a supporting plate fixedly connected to the top of the top plate, and a plurality of steel rods vertically connected between the supporting plate and the top plate. The end of the top plate is fixedly connected with a protection plate, the protection plate wraps the two sets of leg guards, the two sides of the inner wall of the protection plate are connected with sliding blocks, the sliding blocks and the opposite faces of the leg guards are mutually embedded and slidably connected, and a reinforcing assembly is fixedly installed in the middle of the inner wall of the protection plate. The protective plate is arranged on one side of the top plate, the supporting plate is arranged on the top of the top plate, the protective plate forms wrapping protection on the leg guard structure while supporting the steel sheet pile in the foundation pit, the reinforcing assembly is arranged on the protective plate, the firmness of the protective plate can be further improved, and the protective plate is effectively in a safe state for supporting; and the phenomenon of deviation caused by collision in the later period is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a foundation pit support technical field especially relates to a steel sheet pile deep foundation pit support composite support device. BACKGROUND

[0002] Through the retrieval, patent number CN202320555000.2 discloses a kind of steel sheet pile deep foundation pit support composite support device, comprising: two steel sheet pile walls;Support mechanism, the support mechanism is set between two the steel sheet pile wall, the surface of the support mechanism is adjacent the steel sheet pile wall and extends to the other side of steel sheet pile wall and is penetrated;Wherein, the support mechanism includes a plurality of longitudinal support components connected to the side of steel sheet pile wall, the longitudinal support component is used to support the surface of steel sheet pile wall longitudinally, adjusting component is arranged between two the longitudinal support component;By setting longitudinal support component, under the action of longitudinal support component, by the connecting cross bar for connecting multiple longitudinal plates, so that one longitudinal plate is under stress, under the action of other longitudinal plate, cooperate with the stabilizing effect of connecting cross bar, to avoid local concave situation, guarantee the supporting effect of support device;

[0003] The existing patent still has the following deficiencies in actual use: it is difficult to automatically adjust the internal structure of the foundation pit between different distances, which causes deviation in the later supporting process, and the debris or other impurities in the foundation pit are easy to fall, which can directly contact the supporting structure, causing damage to the surface of the supporting structure and affecting the supporting performance in the later period. UTILITY MODEL CONTENT

[0004] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] The utility model provides a kind of steel sheet pile deep foundation pit support composite support device, can solve the problem of the debris falling in foundation pit and destroying support equipment, and the specific scheme is as follows:

[0006] The utility model provides a kind of steel sheet pile deep foundation pit support composite support device, including two groups of leg guards, multiple reinforcing bars are arranged between the two groups of leg guards, the top of the leg guard is movably connected with top plate, the top of the top plate is fixedly connected with support plate, multiple steel poles are vertically connected between the support plate and the top plate, the end of the top plate is fixedly connected with guard plate, the guard plate covers the two groups of leg guards, the inner wall of the guard plate is connected with sliding block on both sides, the opposite surface of the leg guard is mutually embedded and slidingly connected, reinforcing assembly is fixedly installed in the middle of the inner wall of the guard plate, the reinforcing assembly includes clamping groove, and a plurality of butt joints are provided on both sides of the clamping groove.

[0007] As a preferred technical scheme of the utility model, the inner side of the clamping groove is respectively provided with steel plate one, steel plate two and heat-resistant plate, the steel plate one and the steel plate two are fixedly installed on the both sides of the inside of the clamping groove, and the heat-resistant plate is arranged between the steel plate one and the steel plate two, the side wall of the steel plate one, the steel plate two and the heat-resistant plate is provided with a through hole matched with the butt joint, and the through hole and the butt joint are fixed by using a screw rod.

[0008] As a preferred technical scheme of the utility model, the top end of the leg guard is movably provided with a movable rod, the top of the movable rod is fixedly connected with the bottom of the top plate, the inner side of the movable rod is provided with a groove, and the inside of the groove is fixedly connected with a rack.

[0009] As a preferred technical scheme of the utility model, the outer side of the two groups of leg guards is fixedly connected with a connecting piece, a rotating rod is arranged between the two connecting pieces, the middle of the rotating rod is fixedly connected with a gear on both sides, the positions of the two gears correspond to each other with the position of the rack, and the gear is located on the bottom side of the rack, and the gear and the rack are movably connected.

[0010] As a preferred technical scheme of the utility model, the bottom of the connecting piece away from one connecting piece is fixedly connected with a motor, the output end of the motor is drivingly connected with a group of transmission belts through a rotating wheel, the top end of the transmission belt is drivingly connected with a driving wheel, and the central axis of the driving wheel is fixed with one end of the rotating rod.

[0011] As a preferred technical scheme of the utility model, the top of the leg guard is provided with a limiting plate, the middle of the limiting plate is provided with a limiting hole for the movable rod to pass through, and the end of the limiting hole is provided with an inner recess for the rack to move.

[0012] Compared with the prior art, the utility model can at least realize one of the following beneficial effects:

[0013] By setting the guard plate on one side of the top plate, the top of the top plate is provided with a support plate, which supports the steel sheet pile in the foundation pit while the guard plate forms a protective covering at the leg guard structure, and the reinforcing assembly is provided on the guard plate, which can further improve the firmness of the guard plate and effectively keep the guard plate in a safe state for support, avoiding the phenomenon of deviation due to collision in the later period;

[0014] The top plate can be driven up and down by the gear, thereby forming adjustment according to the actual work site and the distance required for support, and the guard plate moves synchronously with the movement of the top plate, and the guard plate and the leg guard slide relative to each other through the sliding block, thereby ensuring the stability of the guard plate during movement.

[0015] Other features and advantages of the present application will be described in the following description, and some of them will become apparent from the description, or will be understood by those skilled in the art through implementation of the present application. The purpose and other advantages of the present application can be achieved and obtained through the structure specifically pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 It is a schematic diagram of the guard plate of the present application;

[0019] Figure 3 It is a schematic diagram of the rack and pinion transmission structure of the present application;

[0020] Figure 4 It is a schematic diagram of the reinforcing assembly of the present application;

[0021] Among them, the reference signs are as follows:

[0022] 1, leg guard; 2, reinforcing rib; 3, guard plate; 4, movable rod; 5, top plate; 6, support plate; 7, reinforcing assembly; 8, sliding block; 9, groove; 10, rack; 11, gear; 12, rotating rod; 13, connecting piece; 14, transmission belt; 15, motor; 16, steel plate two; 17, steel plate one; 18, heat-resistant plate; 19, clamping groove. DETAILED DESCRIPTION

[0023] The preferred embodiments of the utility model are described in detail below with reference to the drawings, wherein the drawings form a part of the utility model and are used together with the embodiments of the utility model to explain the principles of the utility model.

[0024] Referring to Figures 1-4 The utility model provides a kind of steel sheet pile deep foundation pit support composite support device, including two groups of leg guards 1, multiple reinforcing bars 2 are arranged between two groups of leg guards 1, the top of leg guard 1 is movably connected top plate 5, the top of top plate 5 is fixedly connected with support plate 6, multiple steel poles are connected vertically between support plate 6 and top plate 5, the end of top plate 5 is fixedly connected with guard plate 3, guard plate 3 covers two groups of leg guards 1, the inner wall of guard plate 3 is connected with sliding block 8 on both sides, sliding block 8 and the opposite surface of leg guard 1 are mutually embedded and slidably connected, reinforcing assembly 7 is fixedly installed in the middle of the inner wall of guard plate 3, and reinforcing assembly 7 includes clamping groove 19, and a plurality of butt joints are pre-set on both sides of clamping groove 19.

[0025] The inner side of clamping groove 19 is provided with steel plate one 17, steel plate two 16 and heat-resistant plate 18 respectively, steel plate one 17 and steel plate two 16 are fixedly installed on the inner side of clamping groove 19, the heat-resistant plate 18 is arranged between steel plate one 17 and steel plate two 16, and the sidewall of steel plate one 17, steel plate two 16 and heat-resistant plate 18 is provided with a through hole matched with the butt joint, and the through hole and the butt joint are fixed by using a screw rod.

[0026] It is used to form support for the middle or back of the whole guard plate 3, and the protection performance is increased.

[0027] The top end of leg guard 1 is movably provided with movable rod 4, the top of movable rod 4 is fixedly connected with the bottom of top plate 5, recess 9 is formed in the inner side of movable rod 4, and rack 10 is fixedly connected in recess 9.

[0028] The outer side of two groups of leg guards 1 is fixedly connected with connecting piece 13, rotating rod 12 is arranged between two connecting pieces 13, rack 11 is fixedly connected on both sides of the middle of rotating rod 12, the positions of two racks 11 correspond to each other, and rack 11 is located on the bottom side of rack 10, and rack 11 and rack 10 are meshingly connected.

[0029] The bottom of one connecting piece 13 is fixedly connected with motor 15, a group of transmission belts 14 are drivenly connected with motor 15 through rotating wheel, driving wheel is drivingly connected with the top end of transmission belt 14, the central axis of driving wheel is fixedly connected with one end of rotating rod 12, after starting motor 15, motor 15 drives rotating rod 12 to rotate, since rack 11 is arranged on both sides of the middle of rotating rod 12, and rack 11 and rack 10 are meshingly connected, rack 10 can be driven to move up and down along with rack 11.

[0030] Need to explain, rack 10 in the process of moving, rack 10 tail activity rod 4 synchronous lifting, and the slide block 8 between the fender 3 and the leg guard 1 movement, so that the top plate 5, support plate 6 and fender 3 can complete the movement at this time.

[0031] By setting fender 5 on one side of the top plate, the top of the top plate 5 is provided with a support plate 6, which supports the steel sheet pile in the foundation pit, and the fender 3 forms a protective coating on the structure of the leg guard 1, and the fender 3 is provided with a reinforcing assembly 7, which can further improve the firmness of the fender 3, effectively make the fender 3 in a safe state of support, avoid the phenomenon of deviation due to collision in the later stage;

[0032] The top plate 5 can be driven up and down by the gear 11, so as to form adjustment according to the actual work site and the distance required to support, and the fender 3 moves synchronously with the movement of the top plate 5, and the fender 3 and the leg guard 1 are slid by setting the slide block 8, which ensures the stability of the fender with the movement.

[0033] The top of the leg guard 1 is provided with a limiting plate, and the limiting hole for the movable rod 4 to pass through is formed in the middle of the limiting plate. The end of the limiting hole is provided with a recess for the movement of the rack 10. The limiting plate is used for limiting the movable rod 4. When the movable rod 4 moves, it is ensured that the movable rod 4 is always inside the limiting hole, so as to avoid the phenomenon of shaking of the movable rod 4 due to the movement.

[0034] In the description of the present application, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The terms "first", "second", "third", "fourth" and the like (if any) in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily refer to a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0036] The embodiments of the present application are not limited to the specific orientation of the apparatus or elements implied by the embodiments of the present application must have a specific orientation, constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0037] The preferred embodiments of the above disclosed utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific implementation described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A steel sheet pile deep foundation pit support composite support device comprising two groups of leg guards (1), characterized in that: Two groups of the leg guards (1) are provided with a plurality of reinforcing ribs (2), the top of the leg guard (1) is movably connected with a top plate (5), the top of the top plate (5) is fixedly connected with a support plate (6), a plurality of steel rods are vertically connected between the support plate (6) and the top plate (5), the end of the top plate (5) is fixedly connected with a guard plate (3), the guard plate (3) covers the two groups of leg guards (1), the inner wall of the guard plate (3) is connected with a sliding block (8) on both sides, the sliding block (8) and the opposite surface of the leg guard (1) are mutually embedded and slidably connected, the inner wall of the guard plate (3) is fixedly installed with a reinforcing assembly (7), the reinforcing assembly (7) comprises a clamping groove (19), and a plurality of butt joints are arranged on both sides of the clamping groove (19).

2. The composite support device for deep foundation pit support of a steel sheet pile according to claim 1, characterized in that: The inner side of the clamping groove (19) is provided with a steel plate one (17), a steel plate two (16) and a heat-resistant plate (18), the steel plate one (17) and the steel plate two (16) are fixedly installed on the both sides of the inside of the clamping groove (19), and the heat-resistant plate (18) is arranged between the steel plate one (17) and the steel plate two (16), the side wall of the steel plate one (17), the steel plate two (16) and the heat-resistant plate (18) is provided with a through hole matched with the butt joint, and the through hole and the butt joint are fixed by using a screw rod.

3. The composite support device for deep foundation pit support of a steel sheet pile according to claim 1, characterized in that: The top end of the leg guard (1) is movably provided with a movable rod (4), the top of the movable rod (4) is fixedly connected with the bottom of the top plate (5), and the inner side of the movable rod (4) is provided with a groove (9), and the inner side of the groove (9) is fixedly connected with a rack (10).

4. The composite support device for deep foundation pit support of a steel sheet pile according to claim 1, characterized in that: The outer side of the two groups of leg guards (1) is fixedly connected with a connecting piece (13), a rotating rod (12) is arranged between the two connecting pieces (13), the middle of the rotating rod (12) is fixedly connected with a gear (11) on both sides, the positions of the two gears (11) correspond to the positions of the racks (10), and the gear (11) is located on the bottom side of the rack (10), and the gear (11) and the rack (10) are meshingly connected.

5. A steel sheet pile deep foundation pit support composite support device according to claim 4, characterized in that: The bottom of the connecting piece (13) is fixedly connected with a motor (15), the output end of the motor (15) is drivingly connected with a group of transmission belts (14) through a rotating wheel, the top end of the transmission belt (14) is drivingly connected with a driving wheel, and the central axis of the driving wheel is fixedly connected with one end of the rotating rod (12).

6. A composite support device for deep foundation pit support of steel sheet piles according to claim 3, characterized in that: The top of the leg guard (1) is provided with a limiting plate, the middle of the limiting plate is provided with a limiting hole through which the movable rod (4) passes, and the end of the limiting hole is provided with an inner recess for the movement of the rack (10).

Citation Information

Patent Citations

  • Steel sheet pile deep foundation pit supporting composite supporting device

    CN219568897U