Foundation pit protection structure for preventing soil accumulation at edge of foundation pit

Abstract

The utility model relates to a foundation pit protection structure for preventing soil accumulation on the edge of a foundation pit. The foundation pit protection structure comprises a top beam arranged on the edge of the foundation pit. A guide sliding rail is installed on the top of the top beam in the length direction, and a protection device is installed on the guide sliding rail in a sliding mode. The protection device comprises a protection support arranged on the guide sliding rail in a sliding mode, a protection assembly hinged to the top of the protection support and a supporting assembly used for supporting the protection assembly. The protection assembly comprises at least two lifting rods hinged to the protection support and first protection cloth connected between the adjacent lifting rods. The supporting assembly comprises a limiting rack arranged on the lifting rod and an inclined supporting rod hinged to the protective support and used for abutting against the limiting rack. The method has the advantage that the probability of soil accumulation on the edge of the foundation pit is reduced.

Description

Technical Field

[0001] This application relates to the field of foundation pit technology, and in particular to a foundation pit protection structure that prevents soil accumulation at the edge of the foundation pit. Background Technology

[0002] During construction, it is often necessary to excavate a foundation pit to facilitate the construction of underground structures. During excavation and construction, soil accumulation often occurs at the pit's edges. Because the structural strength of the pit's edges is relatively weaker than other parts of the pit, soil accumulation at the edges can easily weaken their structural integrity, potentially leading to collapse.

[0003] In existing technologies, during foundation pit excavation, a protective fence is typically installed around the outer edge of the pit. This fence prevents soil and rocks from falling outside the pit and warns personnel outside the fence not to enter the construction site. However, in practice, a significant gap remains between the protective fence and the pit edge, typically 1 to 2 meters wide. During construction, some workers still pile soil into this gap, posing a safety hazard. Utility Model Content

[0004] In order to reduce the probability of soil accumulation at the edge of the foundation pit, this application provides a foundation pit protection structure to prevent soil accumulation at the edge of the foundation pit.

[0005] The foundation pit protection structure for preventing soil accumulation at the edge of the foundation pit provided in this application adopts the following technical solution:

[0006] A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit includes a capping beam arranged at the edge of the foundation pit; a guide rail is installed on the top of the capping beam along its length, and a protective device is slidably installed on the guide rail; the protective device includes a protective bracket slidably arranged on the guide rail, a protective component hinged to the top of the protective bracket, and a support component for supporting the protective component; the protective component includes at least two lifting rods hinged to the protective bracket and a first protective cloth connecting adjacent lifting rods; the support component includes a limiting rack disposed on the lifting rod and a diagonal brace hinged to the protective bracket and used to abut against the limiting rack.

[0007] By adopting the above technical solution, the guide rail allows the protective support in the protective device to slide along the guide rail. After the protective support slides to the designated position, the operator lifts the lifting rod and fixes it with the diagonal brace. The end of the diagonal brace abuts against the limiting rack of the lifting rod, so that the lifting rod is fixed at a fixed angle relative to the protective support. This allows the first protective cloth to be deployed and positioned above the edge of the pit, serving as a warning to the operator and preventing soil from falling onto the ground at the edge of the pit, thereby reducing the probability of soil accumulation at the edge of the pit.

[0008] Optionally, the protective bracket includes at least two support columns and a folding bracket connecting adjacent support columns. The bottom of each support column is provided with a support slider for cooperating with the guide rail. The lifting rod corresponds one-to-one with each support column and is hinged to the top of the corresponding support column.

[0009] By adopting the above technical solution, the folding bracket can be folded when the protective bracket is not in use, thereby reducing the distance between the two support columns, which facilitates the storage and transportation of the protective bracket.

[0010] Optionally, the support column has a groove on its side for arranging the diagonal brace; the bottom end of the diagonal brace is hinged to the bottom of the groove, and damping pads that abut against the sides of the groove are provided on both sides of the bottom end of the diagonal brace.

[0011] By adopting the above technical solution, the bottom end of the diagonal brace is hinged to the bottom of the arrangement slot, allowing the angle of the diagonal brace to be adjusted according to the angle of the lifting rod. The damping pad can improve the damping of the diagonal brace during rotation, which helps to ensure the ideal stability of the diagonal brace supporting the lifting rod.

[0012] Optionally, the guide rail includes an embedded base plate pre-embedded in the crown beam and a rail section connected to the top of the embedded base plate, the top surface of the embedded base plate being located on the outside of the crown beam; the bottom of the support slider is provided with a guide groove for cooperating with the guide rail, and the support slider is equipped with a guide pulley that abuts against the top surface of the embedded base plate.

[0013] By adopting the above technical solution, the cooperation between the guide groove and the slide rail allows the support slider to slide along the guide rail. The guide pulley further facilitates the sliding of the support slider on the guide rail.

[0014] Optionally, the support slider is provided with a locking mechanism, which includes a locking rod that is vertically inserted through and threaded onto the support slider and a locking base plate connected to the bottom of the locking rod.

[0015] By adopting the above technical solution, after the support slider slides to the designated position, the locking base plate is pressed against the pre-embedded base plate by rotating the locking rod, thereby locking the support slider on the guide rail, which helps to reduce the probability of the support slider moving on the guide rail.

[0016] Optionally, the lower edge of the first protective cloth is provided with an extension cloth, the bottom surface of the extension cloth has a fixing sleeve and a fixing water bladder is provided inside the fixing sleeve; the fixing water bladder has a water filling valve.

[0017] By adopting the above technical solution, the installation of the extension cloth can further reduce the probability of soil accumulating at the edge of the foundation pit. When the fixing water bag is filled with water, the fixing water bag can fix the bottom surface of the extension cloth to the edge of the foundation pit, which helps to reduce the probability of the extension cloth swinging.

[0018] Optionally, the first protective fabric has a first Velcro closure on the lower edge of its outer surface, and the extended fabric cover has a second Velcro closure that mates with the first Velcro closure.

[0019] By adopting the above technical solution, when the water in the water-fixing bag is released, the fixing cloth cover is rolled up, so that the second Velcro and the first Velcro are attached together, thereby allowing the fixing cloth cover to be fixed on the first protective cloth.

[0020] Optionally, the protective bracket is provided with a decorative component on the side away from the pit. The decorative component includes a mounting base installed on the protective bracket and a decorative panel that can be detachably installed in the mounting base.

[0021] By adopting the above technical solution, the decorative panel can be detachably installed in the mounting base, allowing the decorative panel to be replaced periodically.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit, wherein a guide rail is installed on the top of the cap beam and a protective device is installed on the guide rail. The diagonal brace in the protective device can fix the lifting rod at a specific angle, so that the first protective cloth can be unfolded and located on the upper side of the edge of the foundation pit, which helps to reduce the probability of soil falling to the edge of the foundation pit, thereby reducing the probability of soil accumulation at the edge of the foundation pit.

[0024] 2. By setting a locking mechanism on the support slider, the cooperation between the locking rod and the locking base plate enables the support slider to be locked in the designated position of the guide rail, thereby enabling the first protective cloth to maintain the designated unfolded length;

[0025] 3. By setting an extension cloth at the lower edge of the first protective cloth, the fixing sleeve of the extension cloth can fit against the edge of the foundation pit when the first protective cloth is lifted, which helps to further reduce the probability of soil falling to the edge of the foundation pit. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the structure of the protective device and the guide rail in the embodiment of this application.

[0028] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0029] Figure 4 This is a schematic diagram of the structure of the folding bracket and the support column in the embodiment of this application.

[0030] Figure 5 yes Figure 4 A magnified view of a portion of point B in the middle.

[0031] Figure 6 This is a schematic diagram of the structure of the protective component in the embodiments of this application.

[0032] Figure 7 This is a cross-sectional schematic diagram of the cooperation between the diagonal brace and the damping pad in an embodiment of this application.

[0033] Figure 8 This is a schematic diagram of the first and second hook and loop fasteners in the embodiments of this application.

[0034] Figure 9 yes Figure 6 A magnified view of a portion of point C.

[0035] Explanation of reference numerals in the attached drawings: 1. Crown beam; 2. Guide slide rail; 21. Embedded base plate; 22. Slide rail section; 3. Protective device; 31. Protective bracket; 311. Support slider; 3111. Guide slide groove; 3112. Guide pulley; 312. Support column; 3121. Mounting plate; 3122. Sliding through groove; 3123. Arrangement groove; 313. Folding bracket; 3131. Folding unit; 3132. Connecting rod; 3133. Sliding protrusion; 314. Locking rod; 315. Drive handwheel; 3 16. Locking base plate; 32. Protective assembly; 321. Lifting rod; 322. First protective cloth; 3221. First Velcro; 323. Extension cloth; 3231. Second Velcro; 324. Fixing cloth cover; 325. Fixing water bladder; 3251. Water filling valve; 33. Support assembly; 331. Diagonal brace; 332. Limiting rack; 333. Damping pad; 334. Adjusting bolt; 4. Sliding clearance; 5. Decorative assembly; 51. Mounting base; 511. Mounting groove; 52. Decorative panel. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0037] This application discloses a foundation pit protection structure to prevent soil accumulation at the edge of the foundation pit.

[0038] Reference Figure 1 A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit includes a capping beam 1 arranged at the edge of the foundation pit, a guide rail 2 installed on the top of the capping beam 1, and a protective device 3 installed on the guide rail 2.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The guide rail 2 includes an embedded base plate 21 pre-embedded in the capping beam 1 and a rail section 22 connected to the top of the embedded base plate 21. The top surface of the embedded base plate 21 is located on the outside of the capping beam 1. The embedded base plate 21 is welded and fixed to the reinforcing steel bars inside the capping beam 1 during the casting of the capping beam 1. In this embodiment, the rail section 22 has a T-shaped cross-section.

[0040] Reference Figure 2 The protective device 3 includes a protective bracket 31 that is slidably mounted on the guide rail 2, a protective component 32 hinged to the top of the protective bracket 31, and a support component 33 for supporting the protective component 32.

[0041] Reference Figure 2 and Figure 3The protective bracket 31 includes a support slider 311 slidably mounted on the guide rail 2, a support column 312 fixed to the top of the support slider 311, and a folding bracket 313 connecting two adjacent support columns 312. In this embodiment, there are three support columns 312. The support slider 311 has a guide groove 3111 for sliding cooperation with the guide rail portion 22 of the guide rail 2. In this embodiment, the guide groove 3111 has a T-shaped cross-section.

[0042] Reference Figure 3 To reduce the resistance of the support slider 311 when sliding on the guide rail 2, guide pulleys 3112 are installed on both sides of the support slider 311, abutting against the top of the embedded base plate 21. A sliding gap 4 is also provided between the support slider 311 and the embedded base plate 21. To ensure that the support slider 311 can be locked in a designated position after sliding, a locking mechanism is also provided. The locking mechanism includes a locking rod 314 that runs vertically through and is threaded onto the support slider, a drive handwheel 315 installed on the top of the locking rod 314, and a locking base plate 316 connected to the bottom of the locking rod 314 and located in the sliding gap 4. The locking base plate 316 has a square plate structure.

[0043] Reference Figure 4 and Figure 5 The folding bracket 313 includes multiple sets of folding units 3131 hinged along the length of the guide rail 2. Each folding unit 3131 includes two intersecting connecting rods 3132 hinged at the middle position. The end of the connecting rod 3132 in each folding unit 3131 is hinged to the end of the connecting rod 3132 of the other folding unit 3131. The support column 312 has a mounting plate 3121 on the side facing the folding bracket 313 for hinged connection of the folding units 3131. The end of the connecting rod 3132 of the folding unit 3131, which is near the mounting plate 3121 and located on the lower side, is hinged to the mounting plate 3121. The end of the connecting rod 3132 of the folding unit 3131, which is near the mounting plate 3121 and located on the upper side, is slidably mounted on the mounting plate 3121. The mounting plate 3121 is provided with a sliding groove 3122 for the end of the connecting rod 3132 to slide, and the connecting rod 3132 is also provided with a sliding protrusion 3133 for sliding cooperation with the sliding groove 3122 at the normal sliding position.

[0044] Reference Figure 6The protective assembly 32 includes lifting rods 321 that correspond one-to-one with the support columns 312 and are hinged to the top of the support columns 312, and a first protective cloth 322 connecting two adjacent lifting rods 321. The first protective cloth 322 is fixed to the outer surface of the lifting rods 321 with adhesive. The lower edge of the first protective cloth 322 also has an extension cloth 323. In order to reduce the probability of the extension cloth 323 swinging, a fixing cloth sleeve 324 is also provided on the bottom surface of the extension cloth 323, and a fixing water bladder 325 is installed inside the fixing cloth sleeve 324. A water filling valve 3251 is installed at the end of the fixing water bladder 325. After water is filled into the fixing water bladder 325 through the water filling valve 3251, the outer side of the fixing water bladder 325 is attached to the inner wall of the fixing cloth sleeve 324, and the bottom of the fixing cloth sleeve 324 can abut against the ground at the edge of the pit.

[0045] Reference Figure 5 and Figure 6 The support assembly 33 includes a diagonal brace 331 hinged to the support column 312 and a limiting rack 332 arranged on the lifting rod 321. When the operator raises the lifting rod 321 to a certain angle, the diagonal brace 331 is rotated so that its end abuts against the limiting rack 332, thus keeping the lifting rod 321 at a fixed lifting angle. To prevent interference between the diagonal brace 331 and the lifting rod 321 when the lifting rod 321 is not raised (i.e., when the diagonal brace 331 is in a vertical state), the side of the support column 312 is provided with an arrangement groove 3123 for arranging the diagonal brace 331. The bottom end of the diagonal brace 331 is hinged to the bottom of the arrangement groove 3123. When the diagonal brace 331 is located in the arrangement slot 3123 and the lifting rod 321 is not lifted, the side end face of the lifting rod 321 facing the arrangement slot 3123 is directly opposite the opening of the arrangement slot 3123.

[0046] Reference Figure 7 In order to ensure the ideal stability of the diagonal brace 331 during rotation, damping pads 333 are provided on both sides of the bottom end of the diagonal brace 331 to abut against the sides of the arrangement groove 3123.

[0047] Reference Figure 6 and Figure 8 In order to ensure that the fixing sleeve 324 can be fixed to the first protective cloth 322 when the lifting rod 321 is not lifted, the lower edge of the outer surface of the first protective cloth 322 is provided with a first hook and loop fastener 3221 along the length direction, and the extension cloth 323 is provided with a second hook and loop fastener 3231 along the length direction. When the fixing sleeve 324 is rolled up, the first hook and loop fastener 3221 can be attached to the second hook and loop fastener 3231, so that the fixing sleeve 324 is fixed to the first protective cloth 322.

[0048] Reference Figure 9The protective bracket 31 has a decorative component 5 on the side away from the pit. The decorative component 5 includes a mounting base 51 welded to the support column 312 along its height direction and a decorative panel 52 detachably installed in the mounting base 51. The mounting base 51 has a mounting groove 511 along its height direction for inserting one end of the decorative panel 52, and the mounting base 51 on the same support column 312 has two mounting grooves 511 with openings facing each other. The decorative panel 52 has a square plate structure. When the protective bracket 31 is unfolded, one end of the decorative panel 52 is inserted into the mounting groove 511 of the mounting base 51, and the other end is inserted into the mounting groove 511 of the mounting base 51 of the adjacent support column 312.

[0049] Combination Figures 1 to 8 The implementation principle of a foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit according to an embodiment of this application is as follows: After the support slider 311 slides to the designated position, the support slider 311 is locked on the guide rail 2 by a locking mechanism; then the operator lifts the lifting rod 321 and fixes the lifting rod 321 by the diagonal brace 331, so that the first protective cloth 322 can be located on the upper side of the edge of the foundation pit; then water is filled into the fixing water bag 325, so that the bottom of the fixing cloth sleeve 324 is attached to the ground at the edge of the foundation pit.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit, comprising a capping beam (1) arranged at the edge of the foundation pit; characterized in that, A guide rail (2) is installed on the top of the crown beam (1) along its length direction, and a protective device (3) is slidably installed on the guide rail (2); the protective device (3) includes a protective bracket (31) slidably arranged on the guide rail (2), a protective component (32) hinged to the top of the protective bracket (31), and a support component (33) for supporting the protective component (32); the protective component (32) includes at least two lifting rods (321) hinged to the protective bracket (31) and a first protective cloth (322) connecting adjacent lifting rods (321); the support component (33) includes a limiting rack (332) disposed on the lifting rod (321) and a diagonal brace (331) hinged to the protective bracket (31) and used to abut against the limiting rack (332).

2. The foundation pit protection structure for preventing soil accumulation at the edge of the foundation pit according to claim 1, characterized in that, The protective bracket (31) includes at least two support columns (312) and a folding bracket (313) connecting adjacent support columns (312). The bottom of the support column (312) is provided with a support slider (311) for cooperating with the guide rail (2). The lifting rod (321) corresponds to the support column (312) and is hinged to the top of the corresponding support column (312).

3. A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit according to claim 2, characterized in that, The side of the support column (312) has an arrangement groove (3123) for arranging the diagonal brace (331); the bottom end of the diagonal brace (331) is hinged to the bottom of the arrangement groove (3123), and damping pads (333) that abut against the side of the arrangement groove (3123) are provided on both sides of the bottom end of the diagonal brace (331).

4. A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit according to claim 2, characterized in that, The guide slide rail (2) includes a pre-embedded base plate (21) embedded in the crown beam (1) and a slide rail part (22) connected to the top of the pre-embedded base plate (21). The top surface of the pre-embedded base plate (21) is located on the outside of the crown beam (1). The bottom of the support slider (311) is provided with a guide groove (3111) for cooperating with the guide slide rail (2). The support slider (311) is equipped with a guide pulley (3112) that abuts against the top surface of the pre-embedded base plate (21).

5. A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit according to claim 4, characterized in that, The support slider (311) is provided with a locking mechanism, which includes a locking rod (314) that is vertically inserted through and threaded onto the support slider (311) and a locking base plate (316) connected to the bottom of the locking rod (314).

6. A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit according to claim 1, characterized in that, The lower edge of the first protective cloth (322) is provided with an extension cloth (323), the bottom surface of the extension cloth (323) has a fixed cloth sleeve (324) and a fixed water bladder (325) is provided inside the fixed cloth sleeve (324); the fixed water bladder (325) has a water filling valve (3251).

7. A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit according to claim 6, characterized in that, The first protective fabric (322) has a first hook and loop fastener (3221) on the lower edge of its outer surface, and the extension fabric (323) has a second hook and loop fastener (3231) that cooperates with the first hook and loop fastener (3221).

8. A foundation pit protection structure for preventing soil accumulation at the edge of a foundation pit according to claim 1, characterized in that, The protective bracket (31) is provided with a decorative component (5) on the side away from the pit. The decorative component (5) includes a mounting base (51) provided on the support column (312) and a decorative panel (52) that can be detachably installed in the mounting base (51).

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