Foundation pit ladder cage base

Abstract

The utility model relates to the technical field of elevator cages, in particular to a foundation pit elevator cage base which comprises a base body and a bottom plate, the bottom plate is fixedly connected to the base body, a fixing block is fixedly connected to the bottom plate, an adjusting component is installed on the bottom plate, and the adjusting component comprises an L-shaped plate, a transverse plate, a trapezoid block and a lead screw. The two L-shaped plates are slidably connected to the two ends of the bottom plate respectively and arranged on the two sides of the fixing block respectively, the transverse plate is slidably connected to the bottom plate, the two trapezoidal blocks are fixedly connected to the two ends of the transverse plate respectively, and the inclined faces of the trapezoidal blocks are slidably connected with the L-shaped plates. The sleeve can be pushed to move upwards along with the upward movement of the L-shaped plate, so that the sleeve can be finely adjusted, the threaded hole in the sleeve can coincide with the threaded hole in the fixing block, and the sleeve and the fixing block can be conveniently fixed through a screw.

Description

Technical Field

[0001] The utility model relates to the technical field of ladder cages, in particular to a foundation pit ladder cage base. Background Art

[0002] The cage-type safety climbing ladder, often simply referred to as a ladder cage, is actually two different names for the same safety facility. The cage-type safety climbing ladder, as an indispensable safety device in modern construction, is designed with a high sense of responsibility for the safety of workers. Its structure is strong and durable, capable of withstanding multiple pressures, providing a safe and reliable up-and-down passage for workers.

[0003] In the prior art, most of them install the basement floor slab first and then install the ladder cage, which is not only inconvenient for personnel to go up and down, but also causes problems in the fixation between the ladder cage and the floor slab. Therefore, it is urgent to place the ladder cage in the foundation pit in advance without affecting the structural construction to ensure the up-and-down safety of personnel.

[0004] In the prior art, such as the patent with the publication number CN109853992B and the name of a height-adjustable ladder cage, which discloses a patent for lifting and adjusting. Although some structures of this patent are similar to those of the present application, it does not disclose buffering through a spring, nor does it disclose that an air bag is used to clean the threaded holes of the sleeve by the weight of the ladder cage. Summary of the Invention

[0005] The purpose of the utility model is to solve the following disadvantages in the prior art. In the prior art, most of them install the basement floor slab first and then install the ladder cage, which is not only inconvenient for personnel to go up and down, but also causes problems in the fixation between the ladder cage and the floor slab. Therefore, it is urgent to place the ladder cage in the foundation pit in advance without affecting the structural construction to ensure the up-and-down safety of personnel. Thus, a foundation pit ladder cage base is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A foundation pit ladder cage base, comprising a base and a bottom plate, the bottom plate is fixedly connected to the base;

[0008] A fixing block is fixedly connected to the bottom plate, an adjusting component is installed on the bottom plate, the adjusting component includes an L-shaped plate, a cross plate, a trapezoidal block, and a lead screw. The two L-shaped plates are respectively slidably connected to both ends of the bottom plate, and the two L-shaped plates are respectively arranged on both sides of the fixing block. The cross plate is slidably connected to the bottom plate. The two trapezoidal blocks are respectively fixedly connected to both ends of the cross plate. The inclined surface of the trapezoidal block is slidably connected to the L-shaped plate. The lead screw is threadedly connected to the cross plate, and the lead screw is rotatably connected to one side wall of the fixing block.

[0009] Preferably, the adjusting member further includes sleeves and a ladder cage. A plurality of the sleeves are respectively fixedly connected to four corners of the ladder cage. The sleeves are slidably connected to the fixed blocks, and threaded holes are formed in both the sleeves and the fixed blocks.

[0010] Preferably, a spring is fixedly connected between the upper end of the L-shaped plate and the bottom plate.

[0011] Preferably, an inflatable bag is fixedly connected between the upper end of the L-shaped plate and the bottom plate. An air collecting chamber is fixedly connected to the upper surface of the L-shaped plate, and the air collecting chamber is fixedly communicated with the inflatable bag.

[0012] Preferably, a plurality of exhaust ports are formed in the upper wall of the air collecting chamber, and the air collecting chamber is arranged below the threaded hole.

[0013] Preferably, a plurality of reinforcing ribs are fixedly connected between the base and the bottom plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] As the gravity of the ladder cage presses the L-shaped plate and compresses the spring, at this time, the spring can play a buffering role when the sleeve is sleeved on the fixed block, avoiding the sleeve directly hitting the fixed block and the bottom plate when being sleeved on the fixed block under the gravity of the ladder cage.

[0016] As the L-shaped plate moves upward, it can push the sleeve upward, thereby realizing a fine adjustment function for the sleeve, enabling the threaded hole on the sleeve to coincide with the threaded hole on the fixed block, and facilitating the fixation of the sleeve and the fixed block by using screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front structural schematic diagram of a base of a foundation pit ladder cage proposed by the present utility model;

[0018] Figure 2 is Figure 1 a partial enlarged view of A in

[0019] Figure 3 is a structural schematic diagram of a fixed block of a base of a foundation pit ladder cage proposed by the present utility model.

[0020] In the figure: 1 base, 2 reinforcing rib, 3 sleeve, 4 screw rod, 5 bottom plate, 6 cross plate, 7 air collecting chamber, 8 L-shaped plate, 9 spring, 10 inflatable bag, 11 trapezoidal block, 12 fixed block, 13 ladder cage. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] In the present utility model, terms such as "upper", "lower", "left", "right", "middle" and "one" cited are only for the sake of clarity in narration, rather than to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

[0023] Referring to Figures 1 - 3 , a foundation pit ladder cage base includes a base 1 and a bottom plate 5. The bottom plate 5 is fixedly connected to the base 1, and a plurality of reinforcing ribs 2 are fixedly connected between the base 1 and the bottom plate 5.

[0024] A fixing block 12 is fixedly connected to the bottom plate 5, and an adjusting component is installed on the bottom plate 5. The adjusting component includes an L-shaped plate 8, a transverse plate 6, a trapezoidal block 11, and a lead screw 4. Two L-shaped plates 8 are respectively slidably connected to both ends of the bottom plate 5. A spring 9 is fixedly connected between the upper end of the L-shaped plate 8 and the bottom plate 5. The two L-shaped plates 8 are respectively arranged on both sides of the fixing block 12. The transverse plate 6 is slidably connected to the bottom plate 5. Two trapezoidal blocks 11 are respectively fixedly connected to both ends of the transverse plate 6. The trapezoidal block 11 is arranged in a right trapezoid. The inclined surface of the trapezoidal block 11 is slidably connected to the L-shaped plate 8. The horizontal movement of the trapezoidal block 11 can adjust the up and down of the L-shaped plate 8. The lead screw 4 is threadedly connected to the transverse plate 6, and the lead screw 4 is rotatably connected to one side wall of the fixing block 12. The rotation of the lead screw 4 can drive the transverse plate 6 to move horizontally on the bottom plate 5. The adjusting component further includes a sleeve 3 and a ladder cage 13. A plurality of sleeves 3 are respectively fixedly connected to the four corners of the ladder cage 13. The sleeve 3 is slidably connected to the fixing block 12. Threaded holes are opened on both the sleeve 3 and the fixing block 12, and the sleeve 3 and the fixing block 12 can be fixed by using an external screw.

[0025] An air-filled bag 10 is fixedly connected between the upper end of the L-shaped plate 8 and the bottom plate 5. An air collecting cavity 7 is fixedly connected to the upper surface of the L-shaped plate 8. The air collecting cavity 7 is fixedly communicated with the air-filled bag 10. A plurality of exhaust ports are opened on the upper wall of the air collecting cavity 7. The air collecting cavity 7 is arranged below the threaded hole.

[0026] In the present utility model, during use, first, the base 1 is installed in the foundation pit, and then the ladder cage 13 is sleeved on the fixing block 12 through the sleeve 3. With the gravity of the ladder cage 13, the L-shaped plate 8 will be squeezed and the spring 9 will be compressed. At this time, the spring 9 can play a buffering role when the sleeve 3 is sleeved on the fixing block 12, avoiding the sleeve 3 being impacted on the fixing block 12 and the bottom plate 5 when being sleeved due to the gravity of the ladder cage 13. During the downward movement of the L-shaped plate 8, the air-filled bag 10 will be compressed, and the gas in the air-filled bag 10 will be discharged to the outer surface of the sleeve 3 through the air collecting cavity 7, which can clean the fine impurities at the end of the threaded hole on the sleeve 3, facilitating the connection of the screw with the fixing block 12.

[0027] When the sleeve 3 is sleeved on the fixed block 12, by observation, check whether the threaded holes on the sleeve 3 and the fixed block 12 are aligned. If it is found that the threaded hole on the sleeve 3 is lower than the threaded hole on the fixed block 12, it is necessary to rotate the lead screw 4. The rotation of the lead screw 4 can drive the cross plate 6 to move towards the sleeve 3 and push the trapezoidal blocks 11 on both sides. Since one end of the L-shaped plate 8 is slidably connected to the inclined surface of the trapezoidal block 11, when the trapezoidal block 11 slides towards the sleeve 3, it can push the L-shaped plate 8 to move upward and stretch the spring 9. As the L-shaped plate 8 moves upward, it can push the sleeve 3 to move upward, thereby realizing a fine adjustment function for the sleeve 3, enabling the threaded hole on the sleeve 3 to coincide with the threaded hole on the fixed block 12, which is convenient for fixing the sleeve 3 and the fixed block 12 with screws.

[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense.

[0029] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A foundation pit ladder cage base, comprising a base (1) and a bottom plate (5), characterized in that, The bottom plate (5) is fixedly connected to the base (1); A fixed block (12) is fixedly connected to the bottom plate (5). An adjusting component is installed on the bottom plate (5). The adjusting component includes an L-shaped plate (8), a horizontal plate (6), a trapezoidal block (11), and a lead screw (4). The two L-shaped plates (8) are respectively slidably connected to both ends of the bottom plate (5). The two L-shaped plates (8) are respectively arranged on both sides of the fixed block (12). The horizontal plate (6) is slidably connected to the bottom plate (5). The two trapezoidal blocks (11) are respectively fixedly connected to both ends of the horizontal plate (6). The inclined surface of the trapezoidal block (11) is slidably connected to the L-shaped plate (8). The lead screw (4) is threadedly connected to the horizontal plate (6). The lead screw (4) is rotatably connected to one side wall of the fixed block (12).

2. The base of a foundation pit ladder cage according to claim 1, characterized in that The adjusting component further includes a sleeve (3) and a ladder cage (13). A plurality of sleeves (3) are respectively fixedly connected to the four corners of the ladder cage (13). The sleeve (3) is slidably connected to the fixed block (12). Threaded holes are formed in both the sleeve (3) and the fixed block (12).

3. The base of a foundation pit ladder cage according to claim 1, characterized in that, A spring (9) is fixedly connected between the upper end of the L-shaped plate (8) and the bottom plate (5).

4. A foundation pit ladder cage base according to claim 2, characterized in that, An inflatable bag (10) is fixedly connected between the upper end of the L-shaped plate (8) and the bottom plate (5). An air collecting cavity (7) is fixedly connected to the upper surface of the L-shaped plate (8). The air collecting cavity (7) is fixedly communicated with the inflatable bag (10).

5. A foundation pit ladder cage base according to claim 4, characterized in that, A plurality of exhaust ports are formed in the upper wall of the air collecting cavity (7). The air collecting cavity (7) is arranged below the threaded hole.

6. The base of a foundation pit ladder cage according to claim 1, characterized in that, A plurality of reinforcing ribs (2) are fixedly connected between the base (1) and the bottom plate (5).

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