CN220704535U - Anti-loosening adjustable foundation pit supporting enclosure - Google Patents

Abstract

The utility model provides an anti-loosening adjustable foundation pit supporting enclosure, which comprises a vertical enclosure wall plate and a reinforced supporting component, wherein the vertical enclosure wall plate is installed and attached on the inner wall surface of a foundation pit, the reinforced supporting component is supported between the vertical enclosure wall plate and the lower concave surface of the foundation pit, the bottom surfaces of the vertical enclosure wall plate and the reinforced supporting component are inserted below the ground, a triangular supporting structure is formed among the vertical enclosure wall plate, the reinforced supporting component and the lower concave surface of the foundation pit, the reinforced supporting component comprises a positioning unit base which is embedded in the ground below the lower concave surface of the foundation pit in an inclined state, and an inclined supporting rod which is connected between the vertical enclosure wall plate and the positioning unit base, the whole inclined supporting rod is in an inclined state, the upper end of the inclined supporting rod is connected with the outer wall surface of the vertical enclosure wall plate in a hinged mode, and the lower end of the inclined supporting rod is fixedly installed on the positioning unit base; and the reinforced supporting component is also provided with an anti-loosening limiting mechanism for preventing the supporting effect from failing under the unfolding state of the device.

Description

Anti-loosening adjustable foundation pit supporting enclosure

Technical Field

The utility model relates to the field of safety protection devices in building construction sites, in particular to an anti-loosening adjustable foundation pit supporting enclosure.

Background

In the field of construction engineering, it is often necessary to excavate a pit formed with a downward recess at a specific location to facilitate the subsequent piling or pouring process. When the foundation pit is excavated and formed, vibration or rain wash in the construction process is extremely easy to cause collapse of the circumferential part of the foundation pit due to the large depth, so that the construction progress is delayed, and even danger and injury can be caused to constructors when serious. Therefore, various baffles or reinforced supporting devices are often installed on the circumferential inner walls of various foundation pits to avoid the occurrence of dangerous situations.

The integrated supporting system structure of the deep foundation pit pile support disclosed in the Chinese patent document with the application number of CN202022306107.2 comprises a maintenance structure enclosing purlin and an inclined supporting device connected with the enclosing purlin; the inclined supporting device comprises a front supporting inclined rod and a supporting inclined pile, wherein the front supporting inclined rod is positioned on the ground, and the supporting inclined pile is positioned underground; and a plurality of cement trays are arranged on the supporting inclined piles at intervals. By sectional grouting construction of the supporting inclined piles, cement trays are formed on the supporting inclined piles positioned under the ground. The deep foundation pit pile support integrated supporting system structure provided by the scheme simplifies the construction process, shortens the construction period, reduces the construction cost and improves the construction efficiency.

As disclosed in the chinese patent application No. CN202221410101.2, the adjustable foundation pit support device can be adjusted adaptively according to the support effect of the support in the service cycle according to practical situations, so as to effectively improve the overall safety of the construction site. The adjustable foundation pit support device comprises a vertical wall plate and a reinforced support assembly, wherein the vertical wall plate is mounted and attached to the inner wall surface of a foundation pit, the reinforced support assembly is propped against the lower concave surface of the foundation pit, the bottom surfaces of the vertical wall plate and the reinforced support assembly are inserted below the ground, and a triangular prop structure is formed among the vertical wall plate, the reinforced support assembly and the lower concave surface of the foundation pit.

Although the retaining roof supporting devices applied to the foundation pit can effectively play a role in supporting the wall surface of the foundation pit, the applicant finds that in such a complex and changeable construction environment, continuous and fluctuation vibration is transmitted to the roof supporting devices due to slotting and perforating construction of peripheral equipment, so that the connection structure of the roof supporting devices is loosened easily, and the roof supporting protection effect is lost.

Aiming at the problems, the utility model provides an adjustable foundation pit supporting enclosure which can effectively realize anti-loosening failure after being adjusted to a proper position for supporting installation.

Disclosure of Invention

The utility model provides an adjustable foundation pit supporting enclosure which can effectively realize looseness prevention after being adjusted to a proper position for supporting installation.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides an adjustable foundation ditch top enclosure that loosens proof, includes the vertical wall panel of installation laminating on the foundation ditch internal face and prop up in the reinforcement supporting component between vertical wall panel and the foundation ditch lower concave surface, the bottom surface of vertical wall panel and reinforcement supporting component inserts below ground, form triangle-shaped top structure between vertical wall panel, reinforcement supporting component and the foundation ditch lower concave surface, the reinforcement supporting component includes the locating element base of embedding in the foundation ditch lower concave surface below ground in the inclined state and the slant top ejector pin of connecting between vertical wall panel and locating element base, the slant top ejector pin wholly is inclined state, its upper end is connected through articulated mode with the outer wall surface of vertical wall panel, its lower extreme fixed mounting is on the locating element base; and the reinforced supporting component is also provided with an anti-loosening limiting mechanism for preventing the supporting effect from failing under the unfolding state of the device.

As the preference for the utility model, the vertical wall panel is provided with an adjustable socket, and the upper end part of the adjustable socket is fixedly arranged on the upper part of the outer wall surface of the vertical wall panel in a hinged manner; the anti-loosening limiting mechanism comprises a mounting part formed by outwards protruding of the middle section of the oblique supporting rod and an anti-reversing mounting part connected and mounted on the mounting part.

In a preferred aspect of the present utility model, the mounting portion has a circular ring shape, and the mounting member has a rod shape as a whole and a hook-shaped engaging portion formed at an upper portion thereof for connecting with the mounting portion.

As the preference for the utility model, the rotary telescopic adjusting mechanism comprises a block-shaped clamping part which is outwards protruded from the upper end part of the inclined supporting rod along the axial direction, a threaded adjusting hole which is arranged on the adjustable inserting seat, and a rotary adjusting piece which is arranged between the inclined supporting rod and the adjustable inserting seat; the clamping notch corresponding to the block-shaped clamping part is formed in one side, close to the inclined supporting rod, of the screwing adjusting piece, and external threads corresponding to the thread adjusting holes are formed in the outer wall of the screwing adjusting piece.

As a preferable aspect of the present utility model, a positioning hole which is recessed inward and corresponds to a lower end portion of the diagonal support rod is formed in an upper portion of the positioning unit base, and the lower end portion of the diagonal support rod is inserted into the positioning hole and is rotatable about its central axis.

Preferably, the positioning hole is filled with lubricating grease.

As the optimization of the utility model, the middle section of the inclined supporting rod is provided with a bending-resistant reinforcing rib which protrudes outwards and extends in the same direction with the inclined supporting rod.

As a preferable mode of the utility model, the whole positioning unit base is cylindrical, and the bottom end of the positioning unit base protrudes outwards to form a conical end.

As a preferable aspect of the present utility model, a plurality of fins extending in a direction parallel to an axial direction of the positioning unit base are formed around an outer peripheral surface of the positioning unit base.

As a preferable aspect of the present utility model, the oblique support rod is entirely cylindrical, and a plurality of mounting portions are provided around an outer circumference of the oblique support rod at intervals.

In summary, the utility model can realize the following beneficial effects:

1. according to the anti-loosening adjustable foundation pit supporting enclosure, in a longer construction period, when the supporting effect of the supporting rod piece on the vertical enclosure wall plate is loosened and weakened under the external vibration action or rain wash condition, the reinforced supporting component in the supporting rod piece can be adjusted, the supporting effect on the vertical enclosure wall plate is recovered, and the safety of a construction environment is ensured; after the preliminary prop-top installation is completed, the device has extremely strong capability of resisting collision vibration and loosening failure due to the existence of the anti-loosening limiting mechanism, so that the device is not required to be overhauled and maintained for a long time, and the labor cost and the safety risk are greatly reduced.

2. In the anti-loosening adjustable foundation pit supporting enclosure, the anti-loosening limiting mechanism is connected with the mounting part formed on the periphery of the inclined supporting rod in a clamping way through the anti-reversing mounting part, so that the anti-loosening adjustable foundation pit supporting enclosure can be flexibly and conveniently detached and mounted.

3. In the anti-loosening adjustable foundation pit supporting enclosure, the upper end part of the inclined supporting rod is connected with the vertical enclosure wall board in a hinged manner, namely, the inclination angle of the inclined supporting rod piece relative to the ground can be adjusted according to the difference that the bottom end of the inclined supporting rod is required to be installed on the ground in the actual use process, so that the application range of the supporting device provided by the scheme is wider; in addition, the hinged connection structure can ensure that the acting force transmitted from soil outside the foundation pit to the inclined supporting rod through the vertical enclosure wall plate always extends along the axial direction of the rod body, so that the phenomenon that the part, inserted into the soil, of the reinforced supporting assembly as a whole is outwards turned and tilted to lose the supporting effect due to the deflected acting force is avoided, and meanwhile, the inclined supporting rod is effectively prevented from being bent and damaged.

4. The positioning unit base and the inclined supporting rod are mutually separated, so that the positioning unit base can be firstly arranged at a specific position point of the lower concave surface of the foundation pit at a certain inclination angle, and then the inclined supporting rod and the positioning unit base are arranged and butted, thereby being convenient and quick and accurate in positioning.

Drawings

FIG. 1 is a schematic view of an anti-loosening adjustable foundation pit supporting enclosure overall structure I;

FIG. 2 is a schematic diagram of a second anti-loosening adjustable foundation pit supporting enclosure;

FIG. 3 is a schematic diagram of the connection of the components of the rotary telescopic adjustment mechanism;

FIG. 4 is a schematic cross-sectional view of the internal mating state of the rotary telescopic adjustment mechanism;

fig. 5 is a schematic view of the anti-loosening limiting mechanism in a cross-sectional view.

In the figure:

1-vertical wall panels, 1 a-adjustable sockets;

2-reinforcing the support assembly;

3, a concave surface under the foundation pit;

4-positioning unit base, 4 a-tapered end, 4 b-fin;

5-oblique supporting rod;

6-a rotary telescopic adjusting mechanism, 6 a-a block-shaped clamping part, 6 b-a thread adjusting hole, 6 c-screwing adjusting piece, 601-clamping notch, 602-external thread;

7-bending-resistant reinforcing ribs.

8-anti-loosening limiting mechanism, mounting part-8 a, anti-reversion mounting part-8 b, hook-shaped clamping part-801.

Detailed Description

The following specific examples are intended to be illustrative of the utility model and are not intended to be limiting, as modifications of the utility model will be apparent to those skilled in the art upon reading the specification without inventive contribution thereto, and are intended to be protected by the patent law within the scope of the appended claims.

The scheme is realized by the following technical means:

examples: in the embodiment, an adjustable foundation pit supporting enclosure is provided, wherein the supporting effect of the enclosure can be adjusted adaptively according to actual conditions in a service period, and the adjustable foundation pit supporting enclosure can automatically prevent supporting failure caused by loosening.

The whole structure of the supporting device is similar to a conventional foundation pit support supporting mechanism, and comprises a vertical wall board 1 fixedly installed on the vertical inner wall surface of a foundation pit and a supporting rod piece which is installed between the vertical wall board 1 and the ground in a connecting way and is arranged in an inclined state. Because the connection between the vertical wall panel 1 and the foundation pit is not improved, the description is omitted, and the main needs to be noted that the vertical wall panel 1 in the scheme is placed in an upright state, one side surface of the vertical wall panel is attached to the vertical inner wall surface of the foundation pit, and the lower end part of the vertical wall panel 1 is embedded into the soil part of the foundation pit downwards.

In the technical solution provided in this embodiment, the main point of improvement is that the structures of the two end portions of the originally single and independent diagonal support rod 5 are optimized and improved, so as to form a reinforced support assembly 2. Of course, a triangular supporting structure is still formed between the reinforced support assembly 2 and the vertical wall panel 1 and the concave surface 3 of the foundation pit.

The components of the reinforced support assembly 2 are first divided and comprise an inclined support bar 5 and a positioning unit base 4. An important utility model here is that the upper end of the diagonal bracing rod 5 is no longer integrally fixed to the vertical wall panel 1, but rather an integrally cylindrical adjustable socket 1a is fixedly mounted in a hinged manner, which adjustable socket 1a can be pivoted about a central axis extending in the horizontal direction over a certain angular range. A rotary telescopic adjusting mechanism 6 which can change the degree of the resisting effect of the oblique supporting rod 5 is formed between the upper end part of the oblique supporting rod 5 and the forehead adjustable inserting seat 1 a. Specifically, a square block-shaped engaging portion 6a is formed by protruding upward from the upper end portion of the oblique support rod 5, a threaded adjusting hole 6b is formed in the adjustable socket 1a from the outer end portion thereof in the axial direction, and a screwing adjusting member 6c for adjusting is further installed between the two portions. The screwing adjusting member 6c is cylindrical, an external thread 602 corresponding to the thread adjusting hole 6b is formed on the outer side of the member, and an engagement notch 601 corresponding to the block-shaped engagement portion 6a and capable of being inserted and engaged is formed on the end of the member on the side of the diagonal support rod 5, and it should be noted that the radial dimension of the thread adjusting hole 6b is larger than the radial dimension of the diagonal support rod 5 as a whole, so that a partial section of one end of the support rod can be inserted into the threaded hole and freely reciprocate. In the use process, the screwing adjusting piece 6c is rotatably installed at a position closer to the bottom section in the threaded adjusting hole 6b, and then one side of the inclined supporting rod 5 is inserted into the threaded adjusting hole 6b to enable the block-shaped clamping part 6a to be in splicing fit with the clamping notch 601. Then by rotating the oblique support rod 5 about its central axis, the screwing adjuster 6c can be pushed out and against this end of the rod.

The block-shaped engaging portion 6a is defined herein mainly for engaging with and driving rotation of the later-described rotation regulating member 6c, and thus the specific shape between these two portions may be various, for example, a cross-sectional shape may be supported in a straight line, a triangle, a cross shape, or the like.

The other inventive point of the scheme is that the oblique supporting rod 5 is not directly embedded in the middle of the soil part of the lower concave surface 3 of the foundation pit, the positioning unit base 4 which is in a whole cylindrical shape is firstly extruded and embedded at a certain angle in a specific position on the lower concave surface 3 of the foundation pit, and then the oblique supporting rod 5 is connected and installed with the positioning unit base. Specifically, the whole positioning unit base 4 is also in a column shape, a concave matching hole corresponding to the lower end part of the inclined supporting rod 5 is formed at the part near the upper end of the positioning unit base, and as the inclined supporting rod 5 is rotated and the inclined supporting rod 5 is pushed out relative to the bottom of the adjustable socket 1a, the other end of the inclined supporting rod 5 is inserted into the concave matching hole until being abutted and locked with the inner bottom surface, so that the supporting effect on the vertical wall panel 1 is achieved. Through the size of changing the rotation moment, the supporting acting force of the vertical wall panel 1 to the inner wall surface of the foundation pit can be very accurately controlled, and when the loosening condition occurs, the device can be wholly restored to a stable and reliable supporting effect through rotation again.

The applicant finds that although the enclosure device can be adjusted to cope with the loosening failure phenomenon possibly generated in the actual use scene, after the expansion of the top of the foundation is completed, the enclosure device is difficult to adjust one by one to ensure enough supporting acting force for the wall surface of the foundation pit in consideration of the large scale of the field in the actual construction and use process. As a further development, the applicant has therefore provided on the reinforcing support assembly 2 a locking and limiting mechanism 8 for preventing the abutment from failing in the deployed state of the device. Specifically, the mechanism includes a mounting portion 8a formed by protruding outwards from the middle section of the oblique ejector rod 5, and two portions of an anti-reversion mounting member 8b connected to and mounted on the mounting portion 8a, wherein the mounting portion 8a is in a circular ring shape, and the anti-reversion mounting member 8b is integrally in a rod shape and has a hook-shaped engaging portion 801 formed on the upper portion thereof for connecting with the mounting portion. In order to flexibly and conveniently install and set, a plurality of identical mounting parts 8a can be formed on the outer peripheral surface of the inclined supporting rod 5 in a surrounding mode with a certain identical interval, so as to flexibly adapt to different actual installation requirements.

When the anti-loosening limiting mechanism 8 is used, the anti-reversion mounting piece is clamped on the mounting part 8a which can drive the rod piece to rotate forward only after installation and debugging are finished, so that the anti-reversion mounting piece 8b is in a natural sagging state. Even if the support enclosure is loosened, the anti-reversion mounting piece 8b can naturally drive the inclined support rod 5 to rotate forward and expand and stretch under the self-use of gravity, so that the generated clearance allowance is compensated, and the stability and reliability of the support effect are ensured.

Further, preferably, in order to facilitate accurate and efficient plugging and installation of the positioning unit base 4 on the ground, a tapered end 4a for breaking hard soil blocks during the early insertion process may be provided at the front end of the positioning unit base 4, and a plurality of fins 4b protruding outward and for preventing the positioning unit base 4 from rotating during the driving adjustment process may be provided on the outer peripheral surface of the positioning unit base 4. Of course, considering that the oblique ejector pin 5, which plays the most important role in transmitting the force, may be damaged by bending during the ejection, it is also possible to provide the bending-resistant reinforcing rib 7 extending in the same direction as the central axis thereof in the middle section where the bending pin most easily occurs.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. An anti-loosening adjustable foundation pit supporting enclosure is characterized in that: the vertical wall plate (1), the reinforced support component (2) and the inclined supporting rod (5) are arranged between the vertical wall plate (1) and the lower concave surface (3) of the foundation pit in a supporting mode, the bottom surfaces of the vertical wall plate (1) and the reinforced support component (2) are inserted below the ground, a triangular supporting structure is formed among the vertical wall plate (1), the reinforced support component (2) and the lower concave surface (3) of the foundation pit, the reinforced support component (2) comprises a positioning unit base (4) which is embedded into the lower ground of the lower concave surface (3) of the foundation pit in an inclined state and an inclined supporting rod (5) which is connected between the vertical wall plate (1) and the positioning unit base (4), the inclined supporting rod (5) is integrally in an inclined state, the upper end of the inclined supporting rod is connected with the outer wall surface of the vertical wall plate (1) in an articulated mode, and the lower end of the inclined supporting rod is fixedly arranged on the positioning unit base (4); the reinforced supporting component (2) is also provided with a locking and limiting mechanism (8) for preventing the supporting effect from failing in the unfolded state of the device.

2. The anti-loosening adjustable foundation pit roof support of claim 1, wherein: an adjustable inserting seat (1 a) is arranged on the vertical wall panel (1), and the upper end part of the adjustable inserting seat (1 a) is fixedly arranged on the upper part of the outer wall surface of the vertical wall panel (1) in a hinged mode; the anti-loosening limiting mechanism (8) comprises a mounting part (8 a) formed by outwards protruding middle sections of the inclined supporting rods (5), and an anti-reversing mounting part (8 b) connected and mounted on the mounting part (8 a).

3. The anti-loosening adjustable foundation pit roof support of claim 2, wherein: the mounting part (8 a) is in a circular ring shape, the whole mounting piece is in a rod shape, and a hook-shaped clamping part (801) for connecting with the mounting part is formed at the upper part of the mounting piece.

4. The anti-loosening adjustable foundation pit roof support of claim 3, wherein: the rotary telescopic adjusting mechanism (6) comprises a block-shaped clamping part (6 a) which protrudes outwards along the axial direction from the upper end part of the inclined supporting rod (5), a threaded adjusting hole (6 b) which is arranged on the adjustable inserting seat (1 a), and a rotary adjusting piece (6 c) which is arranged between the inclined supporting rod (5) and the adjustable inserting seat (1 a); the screwing adjusting piece (6 c) is provided with a clamping notch (601) corresponding to the block-shaped clamping part (6 a) on one side close to the inclined supporting rod (5), and the outer wall of the screwing adjusting piece (6 c) is provided with external threads (602) corresponding to the thread adjusting hole (6 b).

5. The anti-loosening adjustable foundation pit roof support of claim 1, wherein: the upper part of the positioning unit base (4) is provided with a positioning hole which is concave inwards and corresponds to the lower end part of the inclined supporting rod (5), and the lower end part of the inclined supporting rod (5) can be inserted into the positioning hole and rotate around the central axis of the inclined supporting rod.

6. The anti-loosening adjustable foundation pit roof support of claim 5, wherein: and lubricating grease is filled in the positioning holes.

7. The anti-loosening adjustable foundation pit roof support of claim 6, wherein: the middle section of the oblique supporting rod (5) is provided with a bending-resistant reinforcing rib (7) which protrudes outwards and extends in the same direction with the oblique supporting rod (5).

8. The anti-loosening adjustable foundation pit roof support of claim 1, wherein: the positioning unit base (4) is integrally cylindrical, and the bottom end of the positioning unit base (4) protrudes outwards to form a conical end part (4 a).

9. The anti-loosening adjustable foundation pit roof support of claim 8, wherein: and a plurality of fins (4 b) extending in a direction parallel to the axial direction of the positioning unit base (4) are formed around the outer peripheral surface of the positioning unit base (4).

10. The anti-loosening adjustable foundation pit roof support of claim 3, wherein: the whole inclined supporting rod (5) is cylindrical, and a plurality of mounting parts (8 a) are arranged around the periphery of the inclined supporting rod (5) at intervals.