CN219605026U - Foundation pit protection device under freeze thawing environment - Google Patents

Abstract

The utility model relates to the field of pit foundation protection, in particular to a foundation pit protection device in a freeze thawing environment, which comprises a foundation pit protection fence, wherein the foundation pit protection fence comprises two groups of side posts and a transverse plate arranged between the two groups of side posts, the bottom ends of the side posts are provided with ground posts inserted into a ground slot formed in the ground, square steel pipes are arranged on the inner walls of the ground slots, two opposite sides of the ground posts are hinged with support rods, one ends of the support rods, which deviate from the ground posts, are abutted against the side walls of the square steel pipes for supporting the ground posts, and the foundation pit protection fence has the advantage of enhancing the stability of being fixed on the ground in the freeze thawing environment.

Description

Foundation pit protection device under freeze thawing environment

Technical Field

The utility model relates to the field of foundation pit protection, in particular to a foundation pit protection device in a freeze thawing environment.

Background

The freeze thawing environment is a physical geological action and phenomenon that the soil layer is frozen and thawed due to the fact that the temperature is reduced below zero and rises above zero, and due to the fact that positive and negative changes occur periodically in temperature, the underground water and the underground ice in the image layer are subjected to phase change and displacement continuously, and a series of stress deformations such as frost heaving, thawing, rheological deformation and the like are caused to the soil layer.

At present, a corresponding foundation pit is usually required to be excavated according to engineering quantity in the construction process, the foundation pit belongs to temporary engineering, the foundation pit is used for providing a space, the foundation construction operation can be carried out according to the position designated by the design, the foundation pit belongs to a dangerous area, maintenance is required to be carried out around the foundation pit, and protective fences are arranged around the foundation pit by constructors at present to prevent someone from carelessly dropping or throwing sundries into the foundation pit.

Because the soil layer can change in the freeze thawing environment, the foundation pit guard rail is only fixed on the ground surface and does not carry out reinforcement treatment, the overall stability is poor, and the foundation pit guard rail is easy to incline or even collapse.

Disclosure of Invention

The utility model provides a foundation pit protection device in a freeze thawing environment, which aims to realize the enhancement of the stability of a foundation pit protection rail fixed on the ground in the freeze thawing environment.

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

foundation pit protector under freeze thawing environment, foundation pit rail guard includes two sets of jambs and installs the multiunit diaphragm between two sets of jambs, and the jamb bottom is provided with the ground post of inserting the geosyncline of seting up in ground, and square steel pipe is installed to the geosyncline inner wall, the relative both sides of ground post all articulate and are provided with the bracing piece, and the bracing piece deviates from the one end of ground post in with square steel pipe's lateral wall butt in order to be used for supporting the ground post.

Through adopting above-mentioned scheme, when need protect the foundation ditch behind the excavation foundation ditch, carry the foundation ditch rail guard around to the foundation ditch, excavate the geosyncline in advance, insert the geosyncline with the bracing piece of geosyncline both sides and expand to square steel pipe lateral wall, can be better with the geosyncline fixed in to can be fixed in the foundation ditch better around the foundation ditch rail guard, can not receive the influence subsidence or collapse of freeze-thaw environment.

Optionally, the geosyncline lateral wall is fixed with the fixed plate, and the fixed plate bottom has been seted up the fixed slot, and the bracing piece card is gone into in the fixed slot when expanding, and bracing piece and fixed slot's joint position department is provided with vertical dead lever, and the dead lever passes behind fixed plate and the bracing piece with geosyncline ground butt.

Through adopting above-mentioned scheme, because the bracing piece is in the state of tightening up when descending along with the ground post, in the fixed slot is gone into to the card when the bracing piece is expanded to the fixed plate, the fixed stay pole that the fixed plate passed and bracing piece can be better, the ground post is more stable in the ground inslot to foundation ditch rail guard is more stable be fixed in around the foundation ditch.

Optionally, the bracing piece lower surface of ground post both sides articulates respectively has a shrink pole, and the one end that the shrink pole deviates from the bracing piece articulates has No. two shrink poles, and No. two shrink pole other ends articulate in the corresponding position in ground post both sides, is provided with the drive assembly that can drive the bracing piece and fold or expand in the ground post.

Through adopting above-mentioned scheme, insert the ground post behind the geosyncline, operating personnel utilizes drive assembly to drive a shrink pole and No. two shrink poles rotate to the collineation state round the pin joint, bracing piece tip and square steel pipe lateral wall butt this moment, a shrink pole, no. two shrink poles and bracing piece mutually support the ground post that can be more stable, and then improve the installation stability of foundation ditch rail guard.

Optionally, drive assembly includes threaded rod, vertical slider and connecting rod, and the sliding hole has been seted up to the ground post is inside, and vertical slider sets up in the sliding hole to vertically slide in the sliding hole, threaded rod one end pass the side post top and then pass sliding hole and vertical slider and extend to the sliding hole bottom, threaded rod and vertical slider threaded connection, threaded rod bottom and ground post normal running fit, connecting rod one end is articulated with vertical slider lateral wall, and the other end is articulated with No. one shrink pole and No. two shrink pole articulated departments.

Through adopting above-mentioned scheme, through rotating the threaded rod when the control bracing piece, vertical slider can vertically slide, drives the rotation of a shrink pole and No. two shrink poles through the connecting rod, can control the rotation of bracing piece in the geosyncline in ground top, is convenient for fix the foundation ditch rail guard.

Optionally, the ground post both sides are offered and are supplied the connecting rod to wear out and supply the connecting rod to do the groove of stepping down of plane motion.

Through adopting above-mentioned scheme, when vertical slider up-and-down slides, the connecting rod is plane movement, offers the groove of stepping down and is convenient for make the connecting rod can not receive the interference when plane movement, ensures that bracing piece and shrink pole, no. two shrink poles can be smooth expansion or folding.

Optionally, the lower surface of the cross plate close to the ground is provided with a clamping plate, and the position of the ground corresponding to the clamping plate is provided with a clamping groove, and the clamping plate is embedded into the clamping groove.

Through adopting above-mentioned scheme, set up the cardboard in the diaphragm bottom surface that is close to ground, in going into the geosyncline with the cardboard card, the area of contact and the degree of depth of diaphragm and ground have been enlarged, are fixed in around the foundation ditch with the foundation ditch rail guard better to can reduce the influence of freezing and thawing environment.

In summary, the utility model has the following technical effects:

1. the ground column extends into the ground groove, and the square steel pipe is arranged in the ground groove and fixed with the inner wall of the ground groove, so that sedimentation caused by the change of a soil layer in a freeze thawing environment is avoided, and the foundation pit guard rail is caused to be settled or collapsed;

2. the support columns and the fixing plates are arranged on two sides of the ground column, the fixing plates are provided with the fixing grooves, the fixing rods penetrate through the fixing plates and the support columns, and the supporting columns which are spread are better fixed by the fixing plates and the support columns, so that the ground column is fixed in the ground grooves;

3. through seting up the slide hole in the ground post, and set up vertical slider in the slide hole, thereby can reciprocate through the vertical slider of threaded rod drive No. one shrink pole and No. two shrink poles shrink to drive the shrink of bracing piece, can take out the ground post, thereby realize the secondary use of foundation ditch rail guard.

Drawings

FIG. 1 is a diagram showing the whole construction of a foundation pit protection device in a freeze thawing environment according to the present embodiment;

FIG. 2 is a cross-sectional view of a pit guard in a freeze-thaw environment according to the present embodiment;

fig. 3 is a schematic view of a portion of a column specific to this embodiment.

In the figure, 1, a foundation pit guard rail; 11. a side column; 12. a cross plate; 121. a clamping plate; 2. a ground groove; 21. square steel pipe; 211. a fixing plate; 2111. a fixing groove; 212. a groove; 22. a fixed rod; 221. an auxiliary head; 3. a ground column; 31. a support rod; 32. a first retraction lever; 33. a second shrink rod; 4. a drive assembly; 41. a threaded rod; 411. a hand wheel; 42. a vertical slider; 43. a connecting rod; 44. a sliding hole; 5. a relief groove; 6. a clamping groove.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the utility model provides a foundation pit protection device in a freeze thawing environment, which comprises a foundation pit protection fence 1, wherein the foundation pit protection fence 1 comprises side posts 11 and transverse plates 12, the side posts 11 are provided with two, the bottom ends of the side posts 11 are perpendicular to the ground, the transverse plates 12 are provided with a plurality of groups, two ends of the transverse plates 12 are fixed on one surface of the side posts 11, which is close to the ground, the bottom end transverse plates 12 are provided with clamping plates 121, the ground is provided with clamping grooves 6 corresponding to the clamping plates 121, the bottom ends of the side posts 11 are fixed on the ground when the foundation pit protection fence 1 is fixed, and the clamping plates 121 are clamped into the clamping grooves 6, so that the contact area between the bottom of the foundation pit protection fence 1 and the ground can be increased, and the stability of the foundation pit protection fence 1 is enhanced.

Referring to fig. 2 and 3, a ground post 3 is fixed at the bottom end of a side post 11, a ground slot 2 is formed at the position of the ground post 3, the ground post 3 can be inserted into the ground slot 2 to reinforce the foundation pit guard rail 1, two sides of the ground post 3 are respectively provided with a supporting rod 31, one end of the supporting rod 31 is hinged with the surface of the ground post 3, the other end of the supporting rod 31 can rotate in a direction deviating from the ground post 3, a first shrinkage rod 32 is arranged on the lower surface of the supporting rod 31, one end of the first shrinkage rod 32 is hinged with the supporting rod 31, a second shrinkage rod 33 is arranged on the other end of the second shrinkage rod 33, one end of the second shrinkage rod 33 is hinged with the first shrinkage rod 32, the other end of the second shrinkage rod is hinged with the ground post 3, when the ground post 3 is not inserted into the ground slot 2, the supporting rod 31 is in a folded shrinkage state, the hinge points of the first shrinkage rod 32 and the second shrinkage rod 33 are close to the ground post 3, so that a larger space can be conveniently moved when the ground post 3 is conveyed and inserted into the ground slot 2, a constructor pushes the first shrinkage rod 32 and the second shrinkage rod 33 to gradually rotate in a direction deviating from the ground post 3 until the first shrinkage rod 32 and the second shrinkage rod 33 rotate in a direction of the ground post 3, the second shrinkage rod 33 is pivoted to the side wall of the ground post 3, and the side wall is fixed to the side wall of the ground post 3.

Referring to fig. 2 and 3, a square steel pipe 21 is disposed in the ground groove 2, the square steel pipe 21 is fixed on the inner wall of the ground groove 2, a groove 212 is formed in the bottom surface of the square steel pipe 21 corresponding to the position of the ground column 3, the square steel pipe 21 can be inserted into the groove 212 when the ground column 3 is inserted into the square steel pipe 21, a fixing plate 211 is fixed on two sides of the square steel pipe 21 corresponding to the position of the support rod 31, a fixing groove 2111 is formed in the lower surface of the fixing plate 211, when the support rod 31 rotates towards the square steel pipe 21 on two sides, the end portions of the support rod 31 are clamped in from top to bottom in the rotating process, through holes penetrating through the fixing plate 211 and the support rod 31 are formed in the surfaces of the support rod 31, and when the end portions of the support rod 31 are clamped in the fixing groove 2111, the two through holes are opposite to each other, and a vertical fixing rod 22 is inserted in the through holes to further improve the support stability of the support rod 31 to the ground column 3. One end of the fixing rod 22 penetrates through the fixing plate 211 and the supporting rod 31 and extends towards the bottom surface of the square steel tube 21 and is abutted against the bottom surface of the square steel tube 21, an auxiliary head 221 is arranged at a position close to the top end of the fixing rod 22, the fixing rod 22 is conveniently inserted through the auxiliary head 221, the supporting rod 31 and the inner wall of the square steel tube 21 are fixed through the fixing plate 211, and the position of the ground column 3 in the ground slot 2 can be better fixed.

Referring to fig. 2 and 3, a driving assembly 4 is disposed in the ground column 3, the driving assembly 4 includes a threaded rod 41, a vertical sliding block 42 and a connecting rod 43, a sliding hole 44 is formed in the ground column 3, the vertical sliding block 42 is disposed in the sliding hole 44 and is slidably connected with the sliding hole 44, one end of the threaded rod 41 passes through the top end of the side column 11, then passes through the sliding hole 44 and the vertical sliding block 42 and extends towards the bottom surface of the sliding hole 44, the threaded rod 41 is in threaded connection with the vertical sliding block 42, the bottom of the threaded rod 41 is in rotary fit with the ground column 3, the top end of the threaded rod 41 passes through the side column 11 and is fixed with a hand wheel 411, the hand wheel 411 can be rotated to drive the threaded rod 41 to rotate, the vertical sliding block 42 can move up and down on the threaded rod 41, a yielding groove 5 is formed in positions of two sides of the ground column 3 corresponding to the connecting rod 43, one end of the connecting rod 43 is hinged with the side wall of the vertical sliding block 42 facing the supporting rod 31, and the other end of the connecting rod 43 is hinged with one end of the yielding groove 5 hinged with the first shrinking rod 32 and the second shrinking rod 33, when the vertical sliding block 42 moves up and down, the connecting rod 43 has enough space to drive the first shrinking rod 32 and the second shrinking rod 33 to move close to or far from the ground column 3, thereby the supporting rod 31 can be repeatedly pulled out of the supporting rod 31 from the ground column 3 through the supporting column 31, and the supporting column 3 when the foundation pit 3 is required to be repeatedly moved from the position by the supporting column 31, and the foundation pit 3, and when the foundation pit is required to be fixed.

When the foundation pit guard rail 1 is used beside a foundation pit, firstly, the ground groove 2 is formed in the corresponding position of the ground post 3, the square steel pipe 21 is fixed on the inner wall of the ground groove 2, then the ground post 3 is inserted into the ground groove 2, the bottom end of the ground post 3 is clamped into the groove 212, at the moment, the hand wheel 411 is rotated to drive the threaded rod 41 to rotate, the threaded rod 41 drives the vertical sliding block 42 to move downwards, the connecting rod 43 is utilized to drive the first shrinkage rod 32 and the second shrinkage rod 33 to rotate to a collinear state around the hinging point, so that the supporting rod 31 is unfolded, one end of the supporting rod 31, deviating from the ground post 3, is clamped into the fixing groove 2111 of the fixing plate 211, then the fixing rod 22 vertically penetrates through the fixing plate 211 and the supporting rod 31, so that the supporting rod 31 is always in a stable supporting state, the ground post 3 can be better inserted into the square steel pipe 21, in the embodiment can avoid sedimentation of the foundation pit guard rail 1 in a freeze-thawing environment through the fixing of the square steel pipe 21 in the ground groove 2, and the bottom end transverse plate 12 is clamped into the clamping groove 6, so that the foundation pit guard rail 1 can be better fixed.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims (6)

1. The utility model provides a foundation ditch protector under freezing and thawing environment, includes foundation ditch rail guard (1), its characterized in that: foundation ditch rail guard (1) include two sets of jambs (11) and install diaphragm (12) between two sets of jambs (11), and jamb (11) bottom is provided with inserts ground post (3) of seting up in ground groove (2), square steel pipe (21) are installed to ground groove (2) inner wall, the opposite both sides of ground post (3) all articulate and are provided with bracing piece (31), and the one end that bracing piece (31) deviate from ground post (3) is with the lateral wall butt of square steel pipe (21) in order to be used for supporting ground post (3).

2. The foundation pit protection device in a freeze-thawing environment according to claim 1, wherein: fixed plate (211) is fixed with to geosyncline (2) lateral wall, fixed plate (211) bottom has seted up fixed slot (2111), and in fixed slot (2111) was gone into to card when bracing piece (31) were expanded, bracing piece (31) were provided with vertical dead lever (22) with the joint position department of fixed slot (2111), and dead lever (22) pass behind fixed plate (211) and bracing piece (31) with geosyncline (2) ground butt.

3. The foundation pit protection device in a freeze-thawing environment according to claim 1, wherein: the lower surfaces of the supporting rods (31) on two sides of the ground column (3) are respectively hinged with a first shrinkage rod (32), one end, deviating from the supporting rods (31), of the first shrinkage rod (32) is hinged with a second shrinkage rod (33), the other end of the second shrinkage rod (33) is hinged to corresponding positions on two sides of the ground column (3), and a driving assembly (4) capable of driving the supporting rods (31) to fold or unfold is arranged in the ground column (3).

4. A pit protection device in a freeze-thaw environment according to claim 3, wherein: the driving assembly (4) comprises a threaded rod (41), a vertical sliding block (42) and a connecting rod (43), wherein a sliding hole (44) is formed in the ground column (3), the vertical sliding block (42) is arranged in the sliding hole (44) and vertically slides in the sliding hole (44), one end of the threaded rod (41) penetrates through the top end of the side column (11) and then penetrates through the sliding hole (44) and the vertical sliding block (42) and extends towards the bottom surface of the sliding hole (44), the threaded rod (41) is in threaded connection with the vertical sliding block (42), the bottom of the threaded rod (41) is in running fit with the ground column (3), one end of the connecting rod (43) is hinged with the side wall of the vertical sliding block, and the other end of the connecting rod (43) is hinged with the hinged position of the first shrinkage rod (32) and the second shrinkage rod (33).

5. The foundation pit protection device of claim 4, wherein: and the two sides of the ground column (3) are provided with yielding grooves (5) for the connecting rods (43) to penetrate out and for the connecting rods (43) to do plane movement.

6. The foundation pit protection device in a freeze-thawing environment according to claim 1, wherein: the clamping plate (121) is arranged on the lower surface of the transverse plate (12) close to the ground, the clamping groove (6) is formed in the ground corresponding to the clamping plate (121), and the clamping plate (121) is embedded into the clamping groove (6).