CN213267904U

CN213267904U - Foundation pit supporting structure

Info

Publication number: CN213267904U
Application number: CN202021638330.0U
Authority: CN
Inventors: 何庆; 吴巧贤; 姚吉昌; 廖晓东; 陈聪
Original assignee: Guangdong Jinheng Construction Co ltd
Current assignee: Guangdong Jinheng Construction Co ltd
Priority date: 2020-08-08
Filing date: 2020-08-08
Publication date: 2021-05-25
Anticipated expiration: 2030-08-08

Abstract

The utility model relates to a foundation pit supporting structure, which comprises a protection plate for protecting the inner wall of a foundation pit, wherein a telescopic rod for supporting the protection plate is arranged in the foundation pit, one end of the telescopic rod is hinged with a fixed plate, the fixed plate is detachably connected with the protection plate, the bottom of the foundation pit is provided with a fixed seat, one end of the telescopic rod, which is far away from the fixed plate, is rotatably connected with the fixed seat, and the fixed seat is provided with an adjusting component for adjusting the inclination angle of the telescopic rod relative to the protection plate; the adjusting assembly comprises a driving gear which is rotatably arranged on a fixed seat, a driven gear is arranged at one end, close to the fixed seat, of the telescopic rod, the driving gear is meshed with the driven gear, and a locking assembly which is used for locking the inclination angle of the telescopic rod is arranged on the fixed seat. This application has the effect of easily tearing open.

Description

Foundation pit supporting structure

Technical Field

The application relates to the technical field of building construction, especially, relate to a foundation ditch supporting construction.

Background

At present, with the development of urban construction, foundation pits are involved in municipal construction such as bridge engineering, high-rise buildings, tunnels and the like, so that in order to ensure the safety of underground structure construction and the surrounding environment of the foundation pits, the side walls and surrounding soil layers of the foundation pits need to be supported and blocked, and reinforcement and protection measures are taken.

In the prior art, a foundation pit support mechanism generally adopts a bored cast-in-place pile wall, and a horizontal reinforced concrete support is arranged in a pit, so that the rigidity and the stability of the foundation pit support mechanism are improved, the deformation of the foundation pit is well controlled, and the foundation pit accidents are greatly reduced.

However, most of the existing foundation pit supporting structures are formed by pouring reinforced concrete and matching with corresponding guard plates, so that the required construction time is long, the flexibility is poor, and corresponding limitations exist.

SUMMERY OF THE UTILITY MODEL

In order to improve the current excavation supporting construction engineering time long, the poor problem of flexibility, this application provides an excavation supporting construction.

The application provides a foundation ditch supporting construction adopts following technical scheme:

a foundation pit supporting structure comprises a protection plate for protecting the inner wall of a foundation pit, wherein a telescopic rod for supporting the protection plate is arranged in the foundation pit, one end of the telescopic rod is hinged with a fixed plate, the fixed plate is detachably connected to the protection plate, a fixed seat is arranged at the bottom of the foundation pit, one end, away from the fixed plate, of the telescopic rod is rotatably connected to the fixed seat, and an adjusting assembly for adjusting the inclination angle of the telescopic rod is arranged on the fixed seat;

the adjusting assembly comprises a driving gear which is rotatably arranged on a fixed seat, the telescopic rod is close to one end of the fixed seat, a driven gear is fixedly arranged at one end of the fixed seat, the driving gear is meshed with the driven gear, and a locking assembly which is used for locking the inclination angle of the telescopic rod is arranged on the fixed seat.

Through adopting above-mentioned technical scheme, when constructor supported the inner wall installation guard plate of foundation ditch, constructor at first with fixing base fixed connection in the bottom of foundation ditch, and laminate the guard plate in the inner wall of foundation ditch, then through rotating the telescopic link, so that the telescopic link adjusts to best inclination, thereby make the fixed plate support tight guard plate, the inclination of telescopic link is locked through the closure subassembly this moment, then with fixed plate and guard plate fixed connection, realize support and protection to the foundation ditch wall, compare with the mode that adopts reinforced concrete to pour, construction cycle has been shortened, and when need not to support, still can demolish this supporting construction, the flexibility is higher.

Preferably, the telescopic link includes interior pole and the sleeve outside the pole is located to the cover, interior pole is close to the one end of fixed plate is provided with first spacing boss, the sleeve is close to the inner wall department of the one end of fixing base is provided with the spacing boss of second, the spacing boss of second slide connect in the sleeve.

Through adopting above-mentioned technical scheme, when interior pole when the cooperation of sliding in the sleeve, when interior pole was close to the one end of fixed plate and slides to the sleeve and be close to the one end of fixing base, the cooperation of first spacing boss and the spacing boss butt of second to the interior pole of locating in the sleeve of wearing carries on spacingly, prevents interior pole slippage from the sleeve.

Preferably, the inner wall of the inner rod is provided with a slot, the slot is inserted with a positioning pin, the side wall of the sleeve is provided with a plurality of through holes at equal intervals along the length direction of the sleeve, the positioning pin penetrates through the through holes and is in plug-in fit with the slot.

Through adopting above-mentioned technical scheme, when adjusting the length of telescopic link, through pole and sleeve in the pulling, adjust pole and telescopic relative position, cooperation locating pin passes the perforation grafting and cooperates the slot to carry on spacingly to the relative position of loop bar and interior pole to this length of adjusting the telescopic link.

Preferably, the mounting groove has been seted up to the lateral wall of first spacing boss, the mounting groove internalization is provided with the screens ball, the screens groove has been seted up along telescopic length direction equidistant to telescopic inner wall, be provided with in the mounting groove and be used for the drive the screens ball peg graft cooperate in the elastic component in screens groove, the screens ball with one of them during the screens groove is pegged graft the cooperation, one of them the perforation with the slot aligns.

Through adopting above-mentioned technical scheme, when interior pole relative sleeve is flexible, telescopic inner wall screens ball of contradicting, so that the screens ball is located the mounting groove, when interior pole relative sleeve is flexible when aligning with the screens groove to the screens ball, elastic component drive screens ball motion to pegging graft with the screens groove, when the length of the telescopic link needs to be changed, available power pulling sleeve and interior pole, telescopic inner wall screens ball of contradicting, the screens ball receives the extrusion of sleeve inner wall, make screens ball to mounting groove internal motion, thereby make the screens ball withdraw from current draw-in groove.

Preferably, the elastic piece comprises a spring piece, and the clamping ball is connected to the spring piece.

Through adopting above-mentioned technical scheme, the shell fragment provides elasticity for screens ball grafting cooperation to screens groove.

Preferably, a convex rib is arranged on the first limiting boss, and a limiting groove matched with the convex rib in a sliding manner is formed in the inner wall of the sleeve along the length direction of the sleeve.

Through adopting above-mentioned technical scheme, when the bead joint cooperates the spacing groove, the relative sleeve rotation of restriction interior pole.

Preferably, a first spring is arranged in the sleeve, a third limiting boss is arranged at one end, close to the fixed plate, of the sleeve, one end of the first spring abuts against the first limiting boss, and the other end of the first spring abuts against the third limiting boss.

Through adopting above-mentioned technical scheme, install first spring in the sleeve, the staff of being convenient for adjusts the length of telescopic link.

Preferably, the locking assembly comprises a bearing sleeve arranged on the fixing seat, the length direction of the bearing sleeve is parallel to the axis direction of the driving gear, a limiting rod is arranged in the bearing sleeve in a sliding mode, a plurality of limiting holes are uniformly formed in the side wall of the driving gear along the circumferential direction of the driving gear, and one end, close to the driving gear, of the limiting rod is in plug-in fit with the limiting holes.

Through adopting above-mentioned technical scheme, when the driving gear rotated, drive and rotate from the driving wheel, driven round of driving rotation of telescopic link, when the inclination adjustment of telescopic link was suitable, through the spacing hole of gag lever post grafting cooperation on the driving gear, the restriction driving gear rotated, and then spacing driven gear rotates, and then locks the inclination of telescopic link.

Preferably, one end of the limiting rod, which is far away from the driving gear, is provided with a pull rod.

Through adopting above-mentioned technical scheme, fixedly connected with pull rod on the gag lever post, the staff of being convenient for pulls the gag lever post, carries on spacingly to the action wheel.

Preferably, a second spring is arranged in the sleeve, the pull rod is sleeved with the second spring, one end of the second spring is connected to the inner wall of the bearing sleeve, and the other end of the second spring is connected to the side wall of the pull rod.

Through adopting above-mentioned technical scheme, the second spring is established to the cover on the pull rod, and when the pulling gag lever post, the pull rod makes the second spring compression, and when the gag lever post joint cooperated in spacing hole, provides the joint for the gag lever post and cooperates in the power in spacing groove.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when a constructor supports the inner wall installation protection plate of the foundation pit, the constructor firstly fixedly connects the fixed seat to the bottom of the foundation pit and attaches the protection plate to the inner wall of the foundation pit, then adjusts the telescopic rod to the optimal inclination angle by rotating the telescopic rod so as to enable the fixed plate to tightly abut against the protection plate, locks the inclination angle of the telescopic rod through the locking component at the moment, and then fixedly connects the fixed plate with the protection plate so as to realize the support and protection of the foundation pit wall;

2. compared with a mode of pouring reinforced concrete, the construction period is shortened, and the supporting structure can be dismantled without supporting, so that the flexibility is higher.

Drawings

FIG. 1 is a schematic overall structure of the present application;

figure 2 is a schematic view of a supporting structure in the present application;

FIG. 3 is a partial schematic view of a tilt adjustment assembly of the present application;

FIG. 4 is a schematic view of the inner structure of the bearing sleeve of the present application after being cut away;

FIG. 5 is a schematic view of the telescopic rod of the present application;

FIG. 6 is a cross-sectional view of the extension pole of the present application;

fig. 7 is an enlarged schematic view of a portion a in fig. 6.

Description of reference numerals: 1. a fixed seat; 11. a first through hole; 2. a first anchor rod; 3. a protection plate; 4. a fixing plate; 41. a second through hole; 5. a second anchor rod; 6. a telescopic rod; 61. an inner rod; 611. a first limit boss; 6111. a rib; 612. mounting grooves; 613. a slot; 62. a sleeve; 621. a second limit boss; 622. a third limit boss; 623. perforating; 624. a limiting groove; 625. a clamping groove; 7. a U-shaped seat; 8. a connecting frame; 9. a driven gear; 10. a support frame; 101. a groove; 11. a bearing sleeve; 111. a second limit ring; 12. a limiting rod; 13. a pull rod; 131. a first spacing collar; 14. a second spring; 15. a driving gear; 151. a limiting hole; 16. a first spring; 17. positioning pins; 18. a blocking ball; 19. a spring plate; 191. a first connection portion; 192. a second connecting portion; 193. a first elastic part; 194. a second elastic part; 20. and (4) a wheel axle.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses excavation supporting construction, refer to fig. 1 and fig. 2, including fixing base 1 in the foundation ditch bottom, fixing base 1 is rectangular platelike setting, and first through-hole 11 has all been seted up to four corners of fixing base 1, wears to be equipped with first stock 2 in the first through-hole 11, and fixedly connected with barb on first stock 2, during first stock 2 penetrated the soil layer of foundation ditch bottom behind the first through-hole 11 to fix fixing base 1.

Referring to fig. 2, the inner wall of the foundation pit is provided with a protection plate 3 for protecting the foundation pit, and the fixing plate 4 is rotatably provided with an expansion link 6 for supporting the protection plate 3. The one end of telescopic link 6 articulates there is fixed plate 4, and fixed plate 4 is the cuboid form setting, and second through-hole 41 has all been seted up in the four corners department of fixed plate 4, and second stock 5 is worn to be equipped with by second through-hole 41, is connected with the barb on the second stock 5, and second stock 5 passes guard plate 3 and pricks the inner wall of foundation ditch after passing second through-hole 41.

Referring to fig. 3, a U-shaped seat 7 is fixedly installed at one end of the telescopic rod 6 far away from the fixing plate 4, the U-shaped seat 7 comprises an open end and a closed end, and the closed end of the U-shaped seat 7 is fixedly connected to the telescopic rod 6. An axle 20 is fixedly connected between two opposite side walls of the U-shaped seat 7, and the axle 20 is positioned at the open end of the U-shaped seat 7. The fixing seat 1 is fixedly provided with a connecting frame 8, and two ends of the wheel shaft 20 are rotatably connected with the connecting frame 8. The driven gear 9 is installed at the open end of the U-shaped seat 7, and the driven gear 9 is sleeved on the wheel shaft 20 and is fixedly connected with the wheel shaft 20. Fixedly connected with support frame 10 on the fixing base 1, rotate on the fixing base 1 and install driving gear 15, driving gear 15 meshes driven gear 9.

Referring to fig. 3 and 4, a groove 101 is formed in the support frame 10, a bearing sleeve 11 is loaded in the groove 101, the length direction of the bearing sleeve 11 is parallel to the axis direction of the driving gear 15, a limiting rod 12 is in sliding fit in the bearing sleeve 11, a plurality of limiting holes 151 are uniformly formed in the side wall of the driving gear 15 along the circumferential direction of the driving gear 15, and one end, close to the driving gear 15, of the limiting rod 12 is in plug-in fit with the limiting holes 151. One end fixedly connected with pull rod 13 that gag lever post 12 kept away from driving gear 15, the one end that the lateral wall of pull rod 13 is close to driving gear 15 is connected with annular first spacing collar 131, driven gear 9 one end is kept away from to the inner wall of bearing sleeve 11 is connected with annular second spacing collar 111 along the bearing sleeve 11 circumferencial direction, the cover is equipped with second spring 14 on the pull rod 13, second spring 14 is located bearing sleeve 11, the one end butt of second spring 14 is in second spacing collar 111, the other end butt is in first spacing collar 131. When constructors construct, the telescopic rod 6 can be rotated, so that the driven gear 9 fixedly connected to the telescopic rod 6 is meshed with the driving gear 15 to rotate, the inclination angle of the telescopic rod 6 is adjusted, the telescopic rod 6 is adjusted to the optimal supporting angle, the limiting rod 12 is inserted into the limiting hole 151 to limit the rotation of the driving gear 15, and the rotation of the driven gear 9 is limited to limit the inclination angle of the telescopic rod 6.

Referring to fig. 5, the telescopic rod 6 includes a sleeve 62 and an inner rod 61, a slot 613 is formed in a side wall of the inner rod 61, a positioning pin 17 is inserted and matched in the slot 613, a plurality of through holes 623 are formed in the side wall of the sleeve 62 at equal intervals along a length direction of the sleeve 62, the positioning pin 17 is inserted and matched in the slot 613, the slot 613 is opposite to the through holes 623, and the positioning pin 17 passes through the through holes 623.

Referring to fig. 5 and 6, one end of the side wall of the inner rod 61, which is far away from the U-shaped seat 7, is connected with an annular first limit boss 611, one end of the inner wall of the sleeve 62, which is close to the U-shaped seat 7, is connected with an annular second limit boss 621, and the second limit boss 621 is slidably connected to the sleeve 62. In addition, an annular third limit boss 622 is connected to one end of the sleeve 62 far away from the U-shaped seat 7, the first spring 16 is installed in the sleeve 62, one end of the first spring 16 abuts against the first limit boss 611, and the other end abuts against the third limit boss 622.

In addition, referring to fig. 6, a rib 6111 is fixedly connected to the first limiting boss 611, a limiting groove 624 slidably engaged with the rib 6111 is formed in the inner wall of the sleeve 62 along the length direction of the sleeve 62, and the limiting groove 624 penetrates through the first limiting boss 611 and the side opposite to the third limiting boss 622.

Referring to fig. 6 and 7, a mounting groove 612 is formed in a side wall of the first limiting boss 611, the mounting groove 612 includes an open end and a closed end, the locking ball 18 is movably mounted in the mounting groove 612, locking grooves 625 are formed in the inner wall of the sleeve 62 at equal intervals along the length direction of the sleeve 62, an elastic member for driving the locking ball 18 to be inserted and matched with the locking grooves 625 is arranged in the mounting groove 612, and when the locking ball 18 is engaged with one of the locking grooves 625, the through hole 623 is aligned with one of the slots 613. The elastic piece includes shell fragment 19, shell fragment 19 includes first connecting portion 191 and second connecting portion 192, the one end of first connecting portion 191 and second connecting portion 192 respectively with mounting groove 612 fixed connection, shell fragment 19 still includes first elastic component 193 and second elastic component 194, the one side that first elastic component 193 and second elastic component 194 are close to the mounting groove 612 closed end all is concave arc, the one end of first elastic component 193 and second elastic component 194 is connected respectively in the other end of first connecting portion 191 and second connecting portion 192, the other end of first elastic component 193 and second elastic component 194 is connected respectively in the relative both sides of screens ball 18.

The implementation principle of the foundation pit supporting structure in the embodiment of the application is as follows: when constructors carry out fixed support to the guard plate 3 of foundation ditch inner wall, the length of telescopic link 6 is adjusted to the accessible, finds the best length that supports guard plate 3 to telescopic link 6. When the inclination of telescopic link 6 needs to be adjusted, rotate telescopic link 6, the driving gear 15 that sets up on fixing base 1 rotates, drive driven gear 9 with it meshing and rotate, so that fixed connection rotates in driven gear 9's interior pole 61, adjust the inclination of telescopic link 6 with this, thereby make telescopic link 6 find the best position that supports protection plate 3, lock the inclination of telescopic link 6 through the closure subassembly this moment, realize the support and the protection to the foundation ditch wall. In addition, the fixing plate 4 is detachably connected to the shielding plate 3, so that the supporting structure is easily detached.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a foundation ditch supporting construction, is including guard plate (3) that are used for protecting the foundation ditch inner wall, its characterized in that: the protection plate is characterized in that a telescopic rod (6) used for supporting the protection plate (3) is arranged in the foundation pit, one end of the telescopic rod (6) is hinged with a fixing plate (4), the fixing plate (4) is detachably connected to the protection plate (3), a fixing seat (1) is arranged at the bottom of the foundation pit, one end, far away from the fixing plate (4), of the telescopic rod (6) is rotatably connected to the fixing seat (1), and an adjusting component used for adjusting the inclination angle of the telescopic rod (6) is arranged on the fixing seat (1);

the adjusting part comprises a driving gear (15) rotatably arranged on a fixing seat (1), the telescopic rod (6) is close to a driven gear (9) fixedly arranged at one end of the fixing seat (1), the driving gear (15) is meshed with the driven gear (9), and a locking component used for locking the inclination angle of the telescopic rod (6) is arranged on the fixing seat (1).

2. A foundation pit supporting construction according to claim 1, wherein: telescopic link (6) are located interior pole (61) outer sleeve (62) of pole (61) including interior pole (61) and cover, interior pole (61) are close to the one end of fixed plate (4) is provided with first spacing boss (611), sleeve (62) are close to the inner wall department of the one end of fixing base (1) sets up spacing boss (621) of second, spacing boss (621) of second slide connect in sleeve (62).

3. A foundation pit supporting construction according to claim 2, wherein: the inner wall of the inner rod (61) is provided with a slot (613), the slot (613) is inserted with a positioning pin (17), the side wall of the sleeve (62) is provided with a plurality of through holes (623) for the positioning pin (17) to penetrate through at equal intervals along the length direction of the sleeve (62), and the positioning pin (17) penetrates through the through holes (623) to be matched with the slot (613) in an inserting manner.

4. A foundation pit supporting construction according to claim 3, wherein: mounting groove (612) have been seted up to the lateral wall of first spacing boss (611), mounting groove (612) internalization is provided with screens ball (18), the inner wall of sleeve (62) has seted up screens groove (625) along the length direction equidistance of sleeve (62), be provided with in mounting groove (612) and be used for the drive screens ball (18) grafting cooperation in the elastic component of screens groove (625), screens ball (18) and one of them screens groove (625) grafting cooperation when, one of them perforation (623) with slot (613) align.

5. A foundation pit supporting construction according to claim 4, wherein: the elastic piece comprises an elastic sheet (19), and the clamping ball (18) is connected to the elastic sheet (19).

6. A foundation pit supporting construction according to claim 2, wherein: the first limiting boss (611) is provided with a rib (6111), and the inner wall of the sleeve (62) is provided with a limiting groove (624) which is matched with the rib (6111) in a sliding manner along the length direction of the sleeve (62).

7. A foundation pit supporting construction according to claim 2, wherein: be provided with first spring (16) in sleeve (62), sleeve (62) are close to the one end of fixed plate (4) is provided with third spacing boss (622), the one end butt of first spring (16) in first spacing boss (611), the other end butt in third spacing boss (622).

8. A foundation pit supporting construction according to claim 1, wherein: the locking assembly comprises a bearing sleeve (11) arranged on the fixing seat (1), the length direction of the bearing sleeve (11) is parallel to the axis direction of the driving gear (15), a limiting rod (12) is arranged in the bearing sleeve (11) in a sliding mode, a plurality of limiting holes (151) are uniformly formed in the side wall of the driving gear (15) along the circumferential direction of the driving gear (15), and one end, close to the driving gear (15), of the limiting rod (12) is in plug-in fit with the limiting holes (151).

9. A foundation pit supporting construction according to claim 8, wherein: and a pull rod (13) is arranged at one end of the limiting rod (12) far away from the driving gear (15).

10. A foundation pit supporting construction according to claim 9, wherein: a second spring (14) is arranged in the bearing sleeve (11), the pull rod (13) is sleeved with the second spring (14), one end of the second spring (14) is connected to the inner wall of the bearing sleeve (11), and the other end of the second spring is connected to the side wall of the pull rod (13).