A tool-type foundation pit ladder cage

Abstract

The present application relates to the technical field of ladder cages, and in particular to a tool-type foundation pit ladder cage, which includes a ladder cage body, a triangular support, and an attachment mechanism, wherein the ladder cage body is arranged against the side wall of the foundation pit, the triangular support is fixed to the top of the foundation pit and fixedly connected to the ladder cage body, and the attachment mechanism is connected between the side wall of the foundation pit and the ladder cage body. The present application has the effect of improving the convenience and safety of installation and disassembly of the tool-type ladder cage.

Description

Technical Field

[0001] The present application relates to the technical field of ladder cages, and in particular to a tool-type foundation pit ladder cage. Background Art

[0002] There have always been great safety hazards in the safety of deep foundation pit work surfaces in limited areas. Due to deep foundation pit work, the temporary tool-type ladder cages erected by traditional floor-mounted fastener-type scaffolding used in the past have many problems, such as difficulty in installation, complex installation procedures, and high installation risks. For this reason, technicians in this industry have been exploring more practical ladder cage structures. Utility Model Content

[0003] In order to improve the convenience and safety of installation and disassembly of a tool-type ladder cage, the present application provides a tool-type foundation pit ladder cage.

[0004] The tool-type foundation pit ladder cage provided in this application adopts the following technical solution:

[0005] A tool-type foundation pit ladder cage comprises a ladder cage body, a triangular support and an attachment mechanism, wherein the ladder cage body is arranged close to the foundation pit side wall, the triangular support is fixed to the top of the foundation pit and fixedly connected to the ladder cage body, and the attachment mechanism is connected between the foundation pit side wall and the ladder cage body.

[0006] By adopting the above technical solution, the main body of the ladder cage is arranged close to the side wall of the foundation pit, which can be applied to more narrow foundation pit space environments. The foundation pit can be backfilled layer by layer, and the main body of the ladder cage can be disassembled from bottom to top, which is safe and convenient.

[0007] Optionally, the attachment mechanism includes a mounting plate, a connecting piece and a fastener, the mounting plate is fixed to the side wall of the foundation pit by expansion bolts, the connecting piece is connected between the mounting plate and the fastener, and the fastener is detachably fastened to the ladder cage body.

[0008] By adopting the above technical solution, the mounting plates are connected by expansion bolts, which facilitates the installation and removal of the mounting plates. The fasteners are detachably connected to the main body of the cage, which facilitates the installation and removal of the entire attachment mechanism.

[0009] Optionally, the connecting piece is a steel pipe.

[0010] By adopting the above technical solution, it is convenient to obtain steel pipes and save costs.

[0011] Optionally, the connecting part includes an outer tube, an inner tube and an operating sleeve, the outer tube is fixedly connected to the mounting plate, the inner tube is fixedly connected to the fastener, the inner tube is slidably inserted into the outer tube and is provided with an external thread, the operating sleeve is rotatably connected to the outer tube, a driving ring is fixedly connected to the operating sleeve, the driving ring is provided with an internal thread, and the driving ring is threadably connected to the inner tube.

[0012] By adopting the above technical solution, the staff can rotate the operating sleeve to adjust the length of the inner tube extending out of the outer tube, so as to adapt to the different distances between the ladder cage body and the side wall of the foundation pit.

[0013] Optionally, an outer lap edge in an annular shape is provided at one end of the outer tube close to the operating sleeve, and the cross-section of the outer lap edge is U-shaped; an inner lap edge in an annular shape is provided at one end of the operating sleeve close to the outer tube, and the cross-section of the inner lap edge is U-shaped, and the outer lap edge and the inner lap edge overlap each other.

[0014] By adopting the above technical solution, the outer lap edge and the inner lap edge cooperate with each other, so that the operating sleeve can rotate relative to the steel pipe without being separated from the steel pipe.

[0015] Optionally, a plurality of driving rods are fixedly connected to the outer wall of the operation sleeve.

[0016] By adopting the above technical solution, the driving rod is used to facilitate the staff to rotate the operating sleeve.

[0017] Optionally, the fastener includes a fixed buckle and a movable buckle that cooperate with each other, and the fixed buckle is fixedly connected to the connecting piece.

[0018] By adopting the above technical solution, the staff can first set the fixed buckle on the ladder cage body, and the movable buckle can be movable, which is convenient for the staff to adjust.

[0019] Optionally, a clearance hole is provided on the fixed buckle, a guide rod is fixedly connected between two inner walls opposite to the clearance hole, the movable buckle is slidingly sleeved on the guide rod, and a top screw for tightening the movable buckle is threadedly connected on the fixed buckle.

[0020] By adopting the above technical solution, after the fixed buckle is installed on the main body of the ladder cage, the staff installs the movable buckle on the main body of the ladder cage, and then rotates the top screw to make the top screw press against the movable buckle, thereby fixing the movable buckle, and the overall operation is simple.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The main body of the ladder cage is set against the side wall of the foundation pit, which can be applied to more narrow foundation pit space environments. The foundation pit can be backfilled layer by layer, and the main body of the ladder cage can be disassembled from bottom to top, which is safe and convenient;

[0023] 2. The mounting plate is connected by expansion bolts, which is convenient for installation and removal of the mounting plate. The fasteners are detachably connected to the main body of the cage, which is convenient for installation and removal of the entire attachment mechanism;

[0024] 3. After the fixed buckle is installed on the main body of the ladder cage, the staff will install the movable buckle on the main body of the ladder cage, and then rotate the top screw to make the top screw press against the movable buckle, thereby fixing the movable buckle. The overall operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the ladder cage of an embodiment of the present application.

[0026] Figure 2 It is a structural schematic diagram of the attachment mechanism of an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the cooperation between the connector and the fastener according to an embodiment of the present application.

[0028] Figure 4 It is a cross-sectional view of a connector according to an embodiment of the present application.

[0029] Explanation of the reference numerals: 1. cage body; 2. triangular support; 3. attachment mechanism; 30. mounting plate; 31. connector; 310. outer tube; 3100. outer lap edge; 311. inner tube; 312. operating sleeve; 3120. inner lap edge; 3121. drive ring; 3122. drive rod; 32. fastener; 320. fixing buckle; 3200. connection part 1; 32000. clearance hole; 3201. hook part 1; 321. movable buckle; 3210. connection part 2; 3211. hook part 2; 322. guide rod; 323. top screw. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 4 This application is described in further detail.

[0031] The present application embodiment discloses a tool-type foundation pit ladder cage. Figure 1 A tool-type foundation pit ladder cage includes a ladder cage body 1, a triangular support 2 and an attachment mechanism 3. The ladder cage body 1 is formed by splicing a plurality of steel structure grids and a step ladder. The ladder cage body 1 is vertically attached to the side wall of the foundation pit, and its top extends to the top of the foundation pit, and its bottom extends to the bottom of the foundation pit. Two triangular supports 2 are provided, and the two triangular supports 2 are located on both sides of the ladder cage body 1. The triangular supports 2 are anchored and fixed to the top of the foundation pit. The triangular supports 2 are fixed to the ladder cage body 1, thereby providing vertical support force and lateral pulling force for the ladder cage body 1.

[0032] Reference Figure 1 and Figure 2 The attachment mechanism 3 is installed between the cage body 1 and the side wall of the foundation pit. A plurality of attachment mechanisms 3 are evenly arranged vertically. The attachment mechanism 3 is used to provide a lateral pulling force on the cage body 1. The attachment mechanism 3 includes a mounting plate 30, a connector 31 and a fastener 32. The fastener 32 is fastened on the cage body 1. The mounting plate 30 is laterally attached to the side wall of the foundation pit. Expansion bolts are pre-embedded on the side wall of the foundation pit. The mounting plate 30 is fixed by the expansion bolts.

[0033] Reference Figure 3 and Figure 4 In other embodiments, the connecting member 31 may be a single steel pipe. In this embodiment, the connecting member 31 includes an outer pipe 310, an inner pipe 311 and an operating sleeve 312. The inner pipe 311 is fixed to the fastener 32. One end of the outer pipe 310 is vertically fixed to the mounting plate 30 (refer to Figure 2 ), and the other end is cantilevered, the inner tube 311 is slidably inserted in the outer tube 310, and an external thread is arranged on the outer wall of the inner tube 311. The operating sleeve 312 is sleeved on the end of the outer tube 310 away from the mounting plate 30, and an annular outer lap edge 3100 is fixedly connected to the end of the outer tube 310 close to the operating sleeve 312, and the cross section of the outer lap edge 3100 is U-shaped, and an annular inner lap edge 3120 is fixedly connected to the end of the operating sleeve 312 close to the outer tube 310, and the cross section of the inner lap edge 3120 is U-shaped. The outer lap edge 3100 and the inner lap edge 3120 are hooked with each other, so that the operating sleeve 312 can rotate relative to the outer tube 310 but cannot be separated from the outer tube 310.

[0034] Reference Figure 4 Two drive rings 3121 are coaxially fixed in the outer tube 310, a gap is set between the two drive rings 3121, the inner ring of the drive ring 3121 is provided with an internal thread, and the drive ring 3121 is threadedly connected to the inner tube 311. A plurality of drive rods 3122 are fixed on the outer wall of the operating sleeve 312. The staff can hold the drive rods 3122 to rotate the operating sleeve 312. The rotation of the drive ring 3121 can drive the inner tube 311 to move along its own axis. The staff can adjust the length of the connecting piece 31 according to the distance from the elevator cage body 1 to the side wall of the foundation pit.

[0035] Reference Figure 3 The fastener 32 includes a fixed buckle 320, which includes a connecting portion 1 3200 and a hooking portion 1 3201. The connecting portion 1 3200 is in a straight plate shape, and the inner tube 311 is fixedly connected to one side of the connecting portion 1 3200. The hooking portion 1 3201 is in an L-shaped plate shape, and the hooking portion 1 3201 is fixedly connected to the side of the connecting portion 1 3200 away from the inner tube 311. A clearance hole 32000 is provided on the connecting portion 1 3200, and a movable buckle 321 is provided in the clearance hole 32000. The movable buckle 321 includes an integrally formed connecting portion 2 3210 and a hooking portion 2 3211. The connecting portion 2 3210 is in a straight plate shape, and the hooking portion 2 3211 is in an L-shaped plate shape and is clamped with the hooking portion 1 3201.

[0036] Reference Figure 3A guide rod 322 is fixedly connected between two inner walls opposite to each other in the clearance hole 32000. The axial direction of the guide rod 322 is perpendicular to the axial direction of the inner tube 311. The guide rod 322 is inserted into the second connection part 3210 so that the second connection part 3210 can slide along the guide rod 322. Two top screws 323 are threadedly connected to the end of the first connection part 3200. The top screws 323 are inserted into the clearance hole 32000 and abut against the second connection part 3210. After the fixed buckle 320 and the movable buckle 321 clamp the main body 1 of the ladder cage, the staff can screw the top screw 323 to adjust the position of the second hook part 3211, so that the second hook part 3211 fastens the main body 1 of the ladder cage.

[0037] The implementation principle of a tool-type foundation pit ladder cage in the embodiment of the present application is as follows: the main body 1 of the ladder cage is constructed against the side wall of the foundation pit, which can adapt to more types of narrow environments of the foundation pit. The triangular support 2 and the attachment mechanism 3 cooperate with each other to limit the vertical and lateral displacements of the main body 1 of the ladder cage and the attachment mechanism 3. When the foundation pit is backfilled layer by layer, the steel structure part of the main body 1 of the ladder cage can be removed from bottom to top, so that the safety of the staff to install or remove the main body 1 of the ladder cage is effectively improved. The attachment mechanism 3 is installed between the main body 1 of the ladder cage and the side wall of the foundation pit. The staff can adjust the length of the connecting piece 31 according to the distance between the main body 1 of the ladder cage and the side wall of the foundation pit. Specifically, the fastener 32 is first buckled on the main body 1 of the ladder cage, and then the operating sleeve 312 is rotated to adjust the length of the connecting piece 31.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tool-type foundation pit ladder cage, characterized in that: The invention comprises a cage body (1), a triangular support (2) and an attachment mechanism (3), wherein the cage body (1) is arranged close to the side wall of a foundation pit, the triangular support (2) is fixed to the top of the foundation pit and is fixedly connected to the cage body (1), and the attachment mechanism (3) is connected between the side wall of the foundation pit and the cage body (1); The attachment mechanism (3) comprises a mounting plate (30), a connecting piece (31) and a fastener (32); the mounting plate (30) is fixed to the side wall of the foundation pit by means of expansion bolts; the connecting piece (31) is connected between the mounting plate (30) and the fastener (32); and the fastener (32) is detachably fastened to the cage body (1).

2. A tool-type foundation pit ladder cage according to claim 1, characterized in that: The connecting piece (31) is a steel pipe.

3. A tool-type foundation pit ladder cage according to claim 1, characterized in that: The connecting member (31) comprises an outer tube (310), an inner tube (311) and an operating sleeve (312); the outer tube (310) is fixedly connected to the mounting plate (30); the inner tube (311) is fixedly connected to the fastener (32); the inner tube (311) is slidably inserted into the outer tube (310) and is provided with an external thread; the operating sleeve (312) is rotatably connected to the outer tube (310); a driving ring (3121) is fixedly connected to the operating sleeve (312); the driving ring (3121) is provided with an internal thread; and the driving ring (3121) is threadedly connected to the inner tube (311).

4. A tool-type foundation pit ladder cage according to claim 3, characterized in that: An annular outer lap edge (3100) is provided at one end of the outer tube (310) close to the operating sleeve (312), and the cross section of the outer lap edge (3100) is U-shaped. An annular inner lap edge (3120) is provided at one end of the operating sleeve (312) close to the outer tube (310), and the cross section of the inner lap edge (3120) is U-shaped. The outer lap edge (3100) and the inner lap edge (3120) overlap each other.

5. A tool-type foundation pit ladder cage according to claim 3, characterized in that: A plurality of driving rods (3122) are fixedly connected to the outer wall of the operating sleeve (312).

6. A tool-type foundation pit ladder cage according to claim 1, characterized in that: The fastener (32) comprises a fixed buckle (320) and a movable buckle (321) that cooperate with each other, and the fixed buckle (320) is fixedly connected to the connecting member (31).

7. A tool-type foundation pit ladder cage according to claim 6, characterized in that: The fixing buckle (320) is provided with a clearance hole (32000), a guide rod (322) is fixedly connected between two opposite inner walls of the clearance hole (32000), the movable buckle (321) is slidably sleeved on the guide rod (322), and a top screw (323) for tightening the movable buckle (321) is threadedly connected to the fixing buckle (320).

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