CN113931199B - Deep foundation pit safety protection device for building construction and installation method thereof - Google Patents

Deep foundation pit safety protection device for building construction and installation method thereof Download PDF

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Publication number
CN113931199B
CN113931199B CN202111421176.0A CN202111421176A CN113931199B CN 113931199 B CN113931199 B CN 113931199B CN 202111421176 A CN202111421176 A CN 202111421176A CN 113931199 B CN113931199 B CN 113931199B
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China
Prior art keywords
foundation pit
plate
support frame
rotating
protection
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CN202111421176.0A
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CN113931199A (en
Inventor
国姿
崔婧瑞
翟玉刚
梁崇浩
曹巍
蒋颢
罗威
张振友
曾齐
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China Construction First Group Corp Ltd
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China Construction First Group Corp Ltd
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Publication of CN113931199A publication Critical patent/CN113931199A/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32Safety or protective measures for persons during the construction of buildings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32Safety or protective measures for persons during the construction of buildings
    • E04G21/3204Safety or protective measures for persons during the construction of buildings against falling down
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/23Dune restoration or creation; Cliff stabilisation

Abstract

The invention relates to the technical field of building construction, and discloses a deep foundation pit safety protection device for building construction and an installation method thereof. According to the invention, the top protection is provided for constructors at the bottom of a foundation pit through the construction protection inclined plate, the rotating support plate can rotate on the rotating base, the orientation adjustment of the construction protection inclined plate is realized, sundries are directly hit on the surface of the construction protection inclined plate when falling into the foundation pit, the construction protection inclined plate rotates under stress, the buffer sleeve is pulled to move on the support beam rod through the buffer connecting rod, the stress buffering is carried out through compressing the buffer spring, and the top protection effect for the constructors is improved.

Description

Deep foundation pit safety protection device for building construction and installation method thereof
Technical Field
The invention relates to the technical field of building construction, in particular to a deep foundation pit safety protection device for building construction.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site, and waterproof drainage work is well done. The persons with low excavation depth can use a method of placing a side slope to stabilize the soil slope, and the gradient size of the soil slope is determined according to relevant construction regulations;
for guaranteeing construction safety, need fixed stay structure usually in the building foundation ditch, support the interior wall of foundation ditch, current foundation ditch bearing structure, most only carry out reinforced (rfd) function to the foundation ditch, but can not provide the protection to the constructor of construction operation in the foundation ditch, have safe risk, the safety in utilization is lower.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a deep foundation pit safety protection device for building construction, which solves the problems that most of the existing foundation pit supporting structures only have the function of reinforcing the foundation pit, but cannot protect constructors for construction operation in the foundation pit, so that the safety risk exists and the use safety is lower.
(II) technical scheme
In order to achieve the above object, the present invention provides a deep foundation pit safety protection device for building construction, comprising: the device comprises a support upright post, a lifting oil cylinder, a lifting support frame and a protection plate; the top of the supporting upright post is provided with a rotating base, the outer surface of the rotating base is movably sleeved with a rotating support disc, a rotating support beam is fixedly arranged on the outer side of the rotating support disc, a support beam rod is fixedly arranged at the bottom of the rotating support beam, a buffer sleeve is movably sleeved on the surface of the support beam rod, one end of a buffer connecting rod is hinged with the buffer sleeve, the other end of the buffer connecting rod is hinged with the end part of the construction protection inclined plate, and the other end of the construction protection inclined plate is hinged with the outer side of the rotating support disc; the top end of the rotating base is fixedly connected with the lifting oil cylinder, the output end of the lifting oil cylinder is fixedly connected with the lifting support frame, the top end of the lifting support frame is fixedly connected with the protection plate, the left side and the right side of the protection plate are respectively and fixedly provided with a foundation pit paving plate, and the foundation pit paving plate is used as the extension of the protection plate and covers the surface of the foundation pit; the bottom of the foundation pit paving plate is fixedly provided with a foundation pit fixing vertical plate, and one side of the foundation pit fixing vertical plate close to the lifting support frame is respectively and fixedly provided with a connecting slide rod; the lifting support frame also comprises at least two pairs of connecting slide bars and at least two pairs of folding crosses; the folding cross is arranged between the foundation pit fixing vertical plate and the lifting support frame, four corners of each folding cross are hinged with sliding connecting cylinders, and the sliding connecting cylinders are in sliding connection with connecting sliding rods arranged on the foundation pit fixing vertical plate and the lifting support frame respectively.
The outer side of the rotating base is further fixedly provided with a fixed sliding rail, the bottom of the rotating support plate is fixedly provided with a rotating pulley, and the rotating pulley is connected with the fixed sliding rail in a rolling mode.
Preferably, a buffer spring is arranged on the right side of the buffer sleeve and is sleeved with the support beam rod; and a protective gasket is arranged on the left side of the buffer sleeve.
Preferably, the top of the construction protection inclined plate is provided with a through groove, and the through groove inner side is hinged with a turnover door.
Preferably, the one side of keeping away from lift support frame at the fixed riser of foundation ditch is articulated to be provided with the vertical bed board of foundation ditch, the fixed groove of accomodating that is provided with in the vertical bed board bottom of foundation ditch, it is provided with the extension plate to accomodate the inslot portion activity, the extension plate bottom mounting is provided with the fixed mounting cushion, the fixed mounting cushion bottom can be dismantled and be provided with the staple.
Preferably, the bottom end of the construction protection inclined plate is fixedly provided with an extension elastic sheet, and the extension elastic sheet is abutted to the surface of the extension plate.
Preferably, an operation support frame is fixedly arranged at the top of the lifting support frame, a threaded column is movably arranged at the bottom of the operation support frame, a threaded block is connected to the outer portion of the threaded column through threads, a push-pull movable rod is movably connected to the hinged portion of the folding cross frame and is U-shaped, the end portion of the push-pull movable rod is fixedly connected with the sliding block, and a driving rod is hinged between the threaded block and the sliding block.
Preferably, the operation support frame is internally provided with a rotating platform, the top end of the threaded column is fixedly connected with the bottom of the rotating platform, a rotating groove is formed in the middle of the rotating platform and is hexagonal, the top end of the operation support frame is communicated with the top end face of the protection plate, and the top end of the operation support frame is hinged with a sealing cover.
A method for installing a deep foundation pit safety device for building construction by adopting the device comprises the following steps:
step 1: mounting a support upright post;
step 2: installing a side wall protection device;
and step 3: adjusting the lifting support frame;
and 4, step 4: and installing a top protection device.
(III) advantageous effects
The invention provides a deep foundation pit safety protection device for building construction, which has the following beneficial effects:
(1) according to the construction protection inclined plate, the supporting stand columns are vertically arranged inside the construction foundation pit, the construction protection inclined plate provides top protection for constructors at the bottom of the foundation pit, the rotating support plate can rotate on the rotating base, orientation adjustment of the construction protection inclined plate is achieved, the construction protection inclined plate is suitable for construction condition requirements, the inner side of the construction protection inclined plate is hinged to one end of the rotating support plate, up-and-down overturning of the construction protection inclined plate is achieved, when sundries fall into the foundation pit, the surface of the construction protection inclined plate is directly hit, the construction protection inclined plate rotates under stress, the buffer sleeve is pulled to move on the support beam rod through the buffer connecting rod, stress buffering is conducted through the compression buffer spring, follow-up sundries roll down along the construction protection inclined plate, influence on use of the construction protection inclined plate is avoided, and the top protection effect of the constructors is improved.
(2) According to the invention, the protection plate and the foundation pit paving plate are arranged, the foundation pit paving plate covers two sides of the top of the foundation pit, the foundation pit fixing vertical plate is erected at the edge of the top of the foundation pit, the foundation pit vertical plate is laid downwards along the inner wall of the foundation pit, the extension plate extending out of the accommodating groove is used for laying and covering the rest part, the fixing and mounting cushion block is fixed at the bottom of the foundation pit by using the fixing nail, the foundation pit vertical plate is matched with the extension plate to carry out structural reinforcement on the foundation pit, and the safety and stability effect is improved.
(3) According to the invention, the threaded column is arranged, the sealing cover at the top of the operation support frame is opened, the operation rotating platform is rotated to drive the threaded column to rotate, the lifting of the threaded block is realized, the driving rod is used for driving the push-pull movable rod, the push-pull movable rod pulls or pushes the folding cross, the expansion or contraction of the folding cross is realized, the distance between the fixed vertical plates of the foundation pit is adjusted, the standard of the foundation pit is adapted to construction, and the device is convenient to install and use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of part A of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the overall structure of the present invention;
FIG. 4 is a schematic view of the overall structure of the construction protection sloping plate of the present invention;
FIG. 5 is a schematic view of the overall structure of the rotating bracket plate of the present invention;
FIG. 6 is a schematic view of the structure of the portion B of FIG. 1 according to the present invention;
FIG. 7 is a schematic view of the overall structure of the folding cross of the present invention.
In the figure: 1. supporting the upright post; 2. a lift cylinder; 3. lifting the support frame; 4. a protection plate; 5. paving a cover plate for the foundation pit; 6. a vertical plate is fixed in the foundation pit; 7. connecting a sliding rod; 8. folding the cross; 9. a sliding connection cylinder; 10. rotating the base; 11. rotating the support plate; 12. constructing a protective inclined plate; 13. rotating the support beam; 14. a support beam; 15. a buffer sleeve; 16. a buffer connecting rod; 17. a buffer spring; 18. fixing the slide rail; 19. rotating the pulley; 20. a protective gasket; 21. passing through the slot; 22. turning over the door; 23. erecting and paving a foundation pit; 24. a receiving groove; 25. an extension plate; 26. fixedly mounting a cushion block; 27. fixing nails; 28. extending the elastic sheet; 29. operating the support frame; 30. a threaded post; 31. a thread block; 32. pushing and pulling the movable rod; 33. a slider; 34. a drive rod; 35. a rotating table; 36. a rotating groove; 37. and (6) closing the cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-7, the invention provides a deep foundation pit safety protection device for building construction, which comprises a support upright 1, a lifting cylinder 2, a lifting support frame 3 and a protection plate 4, wherein a rotating base 10 is arranged at the top of the support upright 1, a rotating support plate 11 is movably sleeved on the surface of the rotating base 10, a fixed slide rail 18 is fixedly arranged at the top of the rotating base 10, a rotating pulley 19 is fixedly arranged at the bottom of the rotating support plate 11, the rotating pulley 19 is in rolling connection with the fixed slide rail 18, the rotating pulley 19 rolls on the fixed slide rail 18, and further the rotating support plate 11 can flexibly rotate on the rotating base 10.
A rotating support beam 13 is fixedly arranged on the outer side of the rotating support disc 11, a support beam rod 14 is fixedly arranged at the bottom of the rotating support beam 13, a buffer sleeve 15 is movably sleeved on the surface of the support beam rod 14, one end of a buffer connecting rod 16 is hinged with the buffer sleeve 15, the other end of the buffer connecting rod is hinged with the end part of the construction protection inclined plate 12, and the other end of the construction protection inclined plate 12 is hinged with the outer side of the rotating support disc 11; a buffer spring 17 is arranged on the right side of the buffer sleeve 15, and the buffer spring 17 is sleeved with the support beam rod 14; a protection washer 20 is provided on the left side of the cushion sleeve 15, and the cushion sleeve 15 is protected from collision by providing the protection washer 20. When sundries fall into a foundation pit, the sundries are smashed on the surface of the construction protection inclined plate 12, the construction protection inclined plate 12 is stressed to rotate downwards, the buffer sleeve 15 is pulled to move rightwards on the support beam rod 14 through the buffer connecting rod 16, and the protection inclined plate 12 can slowly roll downwards along the construction protection inclined plate 12 under the impact of the sundries through the buffer action of the compression buffer spring 17, so that the threat of falling objects to constructors is eliminated; meanwhile, the rotating support beam 13 can protect the buffer connecting rod 16, and the situation that sundries are directly smashed on the buffer connecting rod 16 to damage the buffer connecting rod is avoided.
The top end of a rotating base 10 is fixedly connected with a lifting oil cylinder 2, the output end of the lifting oil cylinder 2 is fixedly connected with a lifting support frame 3, the top end of the lifting support frame 3 is fixedly connected with a protection plate 4, the left side and the right side of the protection plate 4 are respectively and fixedly provided with a foundation pit paving plate 5, and the foundation pit paving plate 5 is used as an extension of the protection plate 4 and covers the surface of a foundation pit; the bottom of each foundation pit paving plate 5 is fixedly provided with a foundation pit fixing vertical plate 6, and one side of each foundation pit fixing vertical plate 6 close to the lifting support frame 3 is respectively and fixedly provided with a connecting slide rod 7; the lifting support frame 3 also comprises at least two pairs of connecting slide bars 7 and at least two pairs of folding crosses 8; wherein connect slide bar 7 setting in the inboard of lifting support pole 3 and respectively with the relative setting of the slide bar 7 of being connected of the fixed riser 6 of foundation ditch, wherein folding cross 8 arranges foundation ditch fixed riser 6 with between the lifting support frame 3 to every folding cross 8's four corners is all articulated to be provided with sliding connection section of thick bamboo 9, sliding connection section of thick bamboo 9 is respectively with set up on the fixed riser 6 of foundation ditch with set up connect slide bar 7 sliding connection on the lifting support frame 3.
An operation support frame 29 is fixedly arranged at the top of the lifting support frame 3, a threaded column 30 is movably arranged at the bottom of the operation support frame 29, a threaded block 31 is connected to the outer portion of the threaded column 30 through threads, a push-pull movable rod 32 is movably arranged at the hinged portion of the folding cross 8, the push-pull movable rod 32 is U-shaped, a sliding block 33 is fixedly arranged at the end portion of the push-pull movable rod 32, a sliding block 34 is hinged between the threaded block 31 and the sliding block 33, the threaded block 31 is driven to perform lifting movement when the threaded column 30 rotates, the sliding block 34 drives the push-pull movable rod 32 to perform horizontal movement, when the push-pull movable rod 32 pulls or pushes the folding cross 8, sliding connecting cylinders 9 arranged at four corners of the folding cross 8 slide up and down on the connecting sliding rod 7, so that the folding cross 8 is unfolded or contracted, and finally the distance between the foundation pit fixing vertical plates 6 can be flexibly adjusted according to requirements, thereby meeting the construction standard of the foundation pit.
Furthermore, a through groove 21 is formed in the top of the construction protection inclined plate 12, and a turnover door 22 is hinged to the inner side of the through groove 21; the turnover door 22 is opened, the constructor enters the bottom of the foundation pit through the through groove 21, and the constructor closes the turnover door 22 after reaching the bottom of the foundation pit, so that the through groove 21 is sealed.
Further, it is provided with the vertical bed plate 23 of foundation ditch to articulate in the one side of keeping away from lift support frame 3 at foundation ditch fixed riser 6, the groove 24 has been seted up to accomodating in the vertical bed plate 23 bottom of foundation ditch, accomodate the inside swing joint in groove 24 and have extension plate 25, extension plate 25 bottom fixedly connected with fixed mounting cushion 26, fixed mounting cushion 26's bottom can be dismantled and be provided with staple 27, the vertical bed plate 23 of foundation ditch is laid downwards along the foundation ditch inner wall, accomodate the extension plate 25 that the inside of groove 24 stretches out and lay the lid with the surplus, carry out the structure reinforcement to the foundation ditch, improve the safety and stability effect.
Further, construction protection swash plate 12 bottom mounting is provided with extension flexure strip 28, extension flexure strip 28 and extension plate 25 surface butt, and extension flexure strip 28 is in construction protection swash plate 12 bottom, carries out separation buffer protection to construction between protection swash plate 12 bottom and the extension plate 25, reduces the scraping of construction protection swash plate 12 bottom to extension plate 25 surface.
Further, the inside swivel mount 35 that is provided with of operation support frame 29, threaded post 30 top and swivel mount 35 bottom fixed connection, swivel mount 35 middle part is provided with rotates groove 36, it is the hexagon setting to rotate groove 36, operation support frame 29 top intercommunication guard plate 4 top end face, the articulated closing cap 37 that is provided with in operation support frame 29 top, open the closing cap 37 at operation support frame 29 top, swivel mount 35, it rotates to drive threaded post 30, it is the hexagon setting to rotate groove 36, utilize the rotation instrument to stretch into and rotate in the groove 36, carry out the swing mount 35.
In conclusion, the working process of the invention is as follows: in the process of foundation pit construction, the support upright posts 1 are erected at the bottom of a construction foundation pit, foundation pit paving plates 5 cover two sides of the top of the foundation pit, the protection plates 4 cover a support at the top of the foundation pit paving plates 5, and foundation pit fixing vertical plates 6 are fixedly arranged at the bottom of the foundation pit paving plates 5 and erected at the edge of the top of the foundation pit; in the aspect of protecting the side wall of the foundation pit: a foundation pit vertical floor 23 is hinged to one side, away from the lifting support frame 3, of the foundation pit vertical floor 6, a storage groove 24 is fixedly formed in the bottom of the foundation pit vertical floor 23, the foundation pit vertical floor 23 is laid downwards along the inner wall of the foundation pit, the rest part of the foundation pit vertical floor is laid and covered by an extension plate 25 extending out of the storage groove 24, a fixed mounting cushion block 26 is fixed to the bottom of the foundation pit by fixing nails 27, and the foundation pit vertical floor 23 is matched with the extension plate 25 to structurally reinforce the side wall of the foundation pit; in terms of protection against top falling objects: one end of a construction protection inclined plate 12 is hinged to the bottom surface of a rotating support plate 11, the rotating support plate 11 can rotate on a rotating base 10, orientation adjustment of the construction protection inclined plate 12 is achieved, and the construction protection inclined plate is adaptive to construction condition requirements; in terms of adjusting the folding cross 8: the closing cover 37 at the top of the operating support frame 29 is opened, the rotating platform 35 is rotated through a rotating tool, the threaded column 30 is driven to rotate, the lifting of the threaded block 31 is realized, the sliding block 34 drives the horizontal push-pull movement of the push-pull movable rod 32, the push-pull movable rod 32 realizes the expansion or contraction of the folding cross 8 by pulling or pushing the folding cross 8, and therefore the distance between the fixed vertical plates 6 of the foundation pit is adjusted. The device can provide powerful support for the foundation ditch to the construction standard of different foundation ditches is adapted to, the device has higher convenience simultaneously.
Example 2
The installation method for installing the deep foundation pit safety protection device for building construction in the embodiment 1 in the foundation pit is realized by the following steps:
step 1: installing a support upright post 1: erecting a support upright post 1 at the central position of the bottom of a foundation pit, and installing a rotating support plate 11, a lifting oil cylinder 2 and a lifting support frame 3 on the basis;
step 2: installing a side wall protection device: firstly, fixing a fixed mounting cushion block 26 connected with a fixing nail 27 at the bottom of a foundation pit, and then fixedly connecting an extension plate 25 with the mounting cushion block 26; finally, the position of the extension plate 25 in the storage groove 24 is adjusted, so that the vertical fixing plate 6 of the foundation pit can be adjusted vertically according to different depths of the foundation pit, and the vertical fixing plate 6 of the foundation pit is fixed on the side wall of the foundation pit.
And step 3: adjusting the lifting support frame 3: the closing cover 37 at the top of the operating bracket frame 29 is opened, the rotating table 35 is rotated and operated through a rotating tool, the threaded column 30 is driven to rotate, the lifting of the threaded block 31 is realized, the sliding block 34 drives the horizontal push-pull movement of the push-pull movable rod 32, and the push-pull movable rod 32 realizes the expansion or contraction of the folding cross 8 by pulling or pushing the folding cross 8 to move; after the width of the folding cross 8 is adjusted to a proper position, the sliding connecting cylinder 9 is in sliding connection with the connecting sliding rod 7 of the foundation pit fixing vertical plate 6;
and 4, step 4: mounting a top protection device, firstly covering foundation pit paving plates 5 on two sides of the top of the foundation pit and fixedly connecting the foundation pit paving plates with foundation pit fixing vertical plates 6; and then the protection plate 4 is fixedly connected to the upper part of the foundation pit paving plate 5 in an overlapping mode, and therefore the installation of the whole deep foundation pit safety protection device is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A deep foundation pit safety protection device for building construction comprises a support upright post (1), a lifting oil cylinder (2), a lifting support frame (3) and a protection plate (4);
the method is characterized in that: the top of the supporting upright post (1) is provided with a rotating base (10), the surface of the rotating base (10) is movably sleeved with a rotating support plate (11), the outer side of the rotating support plate (11) is fixedly provided with a rotating support beam (13), the bottom of the rotating support beam (13) is fixedly provided with a support beam rod (14), the surface of the support beam rod (14) is movably sleeved with a buffer sleeve (15), one end of a buffer connecting rod (16) is hinged with the buffer sleeve (15), the other end of the buffer connecting rod (16) is hinged with the end part of a construction protection inclined plate (12), and the other end of the construction protection inclined plate (12) is hinged with the outer side of the rotating support plate (11);
the top end of the rotating base (10) is fixedly connected with the lifting oil cylinder (2), the output end of the lifting oil cylinder (2) is fixedly connected with the lifting support frame (3), the top end of the lifting support frame (3) is fixedly connected with the protection plate (4), foundation pit paving plates (5) are fixedly arranged on the left side and the right side of the protection plate (4) respectively, and the foundation pit paving plates (5) are used as the extension of the protection plate (4) to cover the surface of a foundation pit; the bottom of the foundation pit paving plate (5) is fixedly provided with the foundation pit fixing vertical plate (6), and one side of the foundation pit fixing vertical plate (6) close to the lifting support frame (3) is respectively and fixedly provided with a connecting slide rod (7);
the lifting support frame (3) also comprises at least two pairs of connecting slide bars (7) and at least two pairs of folding crosses (8); the folding cross frames (8) are arranged between the foundation pit fixing vertical plates (6) and the lifting support frame (3), four corners of each folding cross frame (8) are hinged with sliding connecting cylinders (9), and the sliding connecting cylinders (9) are respectively in sliding connection with connecting sliding rods (7) arranged on the foundation pit fixing vertical plates (6) and the lifting support frame (3); a buffer spring (17) is arranged on the right side of the buffer sleeve (15), and the buffer spring (17) is sleeved with the support beam rod (14); a protective gasket (20) is arranged on the left side of the buffer sleeve (15); an operation support frame (29) is fixedly arranged at the top of the lifting support frame (3), a threaded column (30) is movably arranged at the bottom of the operation support frame (29), a threaded block (31) is connected to the outer part of the threaded column (30) in a threaded manner, a push-pull movable rod (32) is movably arranged at the hinged part of the folding cross (8), the push-pull movable rod (32) is U-shaped, the end part of the push-pull movable rod (32) is fixedly connected with a sliding block (33), and a driving rod (34) is hinged between the threaded block (31) and the sliding block (33); the operation support frame (29) is inside to be provided with and to rotate platform (35), screw thread post (30) top and rotation platform (35) bottom fixed connection, it rotates groove (36) to rotate fixed being provided with in platform (35) middle part, it is the hexagon setting to rotate groove (36), operation support frame (29) top intercommunication guard plate (4) top end face, the articulated closing cap (37) that is provided with in operation support frame (29) top.
2. The deep foundation pit safety protection device for building construction according to claim 1, wherein: the outer side of the rotating base (10) is further fixedly provided with a fixed sliding rail (18), the bottom of the rotating support plate (11) is fixedly provided with a rotating pulley (19), and the rotating pulley (19) is in rolling connection with the fixed sliding rail (18).
3. The deep foundation pit safety protection device for building construction according to claim 1, wherein: the construction protection inclined plate (12) is jacked with a through groove (21), and the inner side of the through groove (21) is hinged with a turnover door (22).
4. The deep foundation pit safety protection device for building construction according to claim 1, wherein: one side that elevating support frame (3) was kept away from in foundation ditch fixed riser (6) is articulated to be provided with the foundation ditch and erects bed plate (23), the foundation ditch erects bed plate (23) bottom and has seted up and has accomodate groove (24), accomodate inside movable sleeve in groove (24) and be equipped with extension plate (25), extension plate (25) bottom fixedly connected with fixed mounting cushion (26), fixed mounting cushion (26) bottom can be dismantled and be provided with staple (27).
5. The deep foundation pit safety protection device for building construction according to claim 4, wherein: construction protection swash plate (12) bottom mounting is provided with extension flexure strip (28), extension flexure strip (28) with extension board (25) surface butt.
6. A method for installing a safety device for a deep foundation pit for construction according to the device of claim 4 or 5, comprising the steps of:
step 1: installing a support column (1): erecting a support upright post (1) at the central position of the bottom of a foundation pit, and installing a rotating support plate (11), a lifting oil cylinder (2) and a lifting support frame (3) on the basis;
step 2: installing a side wall protection device: firstly, fixing a fixed mounting cushion block (26) connected with a fixing nail (27) at the bottom of a foundation pit, and then fixedly connecting an extension plate (25) with the mounting cushion block (26); finally, adjusting the position of the extension plate (25) in the accommodating groove (24) to enable the vertical fixing plate (6) of the foundation pit to be adjusted in the vertical position according to different depths of the foundation pit, and further fixing the vertical fixing plate (6) of the foundation pit on the side wall of the foundation pit;
and step 3: adjusting the lifting support frame (3): the closing cover (37) at the top of the operating support frame (29) is opened, the rotating platform (35) is rotated through a rotating tool, the threaded column (30) is driven to rotate, the lifting of the threaded block (31) is realized, the sliding block (34) drives the horizontal push-pull movement of the push-pull movable rod (32), and the push-pull movable rod (32) realizes the expansion or contraction of the folding cross (8) by pulling or pushing the folding cross (8) to move; after the width of the folding cross (8) is adjusted to a proper position, the sliding connecting cylinder (9) is in sliding connection with a connecting sliding rod (7) of a foundation pit fixing vertical plate (6);
and 4, step 4: mounting a top protection device, namely firstly covering foundation pit paving plates (5) on two sides of the top of the foundation pit and fixedly connecting the foundation pit paving plates with foundation pit fixing vertical plates (6); and then the protection plate (4) is fixedly lapped on the upper part of the foundation pit paving plate (5), so that the installation of the whole deep foundation pit safety protection device is realized.
CN202111421176.0A 2021-11-26 2021-11-26 Deep foundation pit safety protection device for building construction and installation method thereof Active CN113931199B (en)

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CN114481964A (en) * 2022-02-28 2022-05-13 唐小梅 Ditch excavation pre-supporting device and method based on hydraulic engineering

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CN210288407U (en) * 2019-03-25 2020-04-10 西京学院 Civil engineering earthwork excavation is with foundation ditch protection machanism
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CN214460478U (en) * 2021-02-25 2021-10-22 扬州工业职业技术学院 Safety protection structure for foundation pit
CN214575903U (en) * 2021-01-28 2021-11-02 中国化学工程第十三建设有限公司 Anti-falling safety device for building construction

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CN208701696U (en) * 2018-07-19 2019-04-05 中铁建大桥工程局集团第一工程有限公司 A kind of Metro station excavation bracing members fall protection equipment
CN210288407U (en) * 2019-03-25 2020-04-10 西京学院 Civil engineering earthwork excavation is with foundation ditch protection machanism
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