A type of prefabricated pit-mounted ladder cage

Abstract

This utility model discloses a prefabricated ladder cage for pit entry, comprising: a base plate, wherein an adjusting and disassembling mechanism is fixedly connected to the four corners of the upper surface of the base plate, a top plate is fixedly connected to the top of the adjusting and disassembling mechanism, a lifting ring is fixedly connected to the middle of the upper end of the top plate, and a first protective net is fixedly connected to the front and rear ends and the left side of the upper surface of the base plate, and the first protective net is fixedly connected to the adjusting and disassembling mechanism; a rotating door, wherein the adjusting and disassembling mechanism is hinged to the right side of the adjusting and disassembling mechanism on one side close to each other. Through the adjusting and disassembling mechanism, through the fixed column, connecting cylinder, adjusting rod and locking bolt, it is easy to quickly disassemble the components on the base plate and the top plate, which is convenient for the assembly of this device. Through the buffer spring, it is easy for this device to be used for buffer protection during the hoisting process. Through the protective mechanism, it is easy to pull the protective adjusting net after the height of the adjusting and disassembling mechanism is adjusted, which is convenient to be adjusted synchronously with this device.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a prefabricated ladder cage for pit entry. Background Technology

[0002] Modular ladder cages (also known as modular climbing ladders or assembled scaffolding) are temporary climbing facilities widely used in construction, bridges, equipment maintenance and other fields. They are characterized by rapid installation, reusability, safety and reliability.

[0003] A prefabricated scaffolding cage for pit entry, disclosed in announcement number CN206987431U, is installed in front of adjacent upper and lower concrete supports. Four channel steels are erected on the lower concrete support, with one end fixed and the other end cantilevered in front of the lower concrete support. The prefabricated scaffolding cage includes a cage frame and a steel ladder housed within the cage frame. The cage frame includes four rows of uprights mounted on the cantilevered ends of the channel steels. Several horizontal and diagonal tie rods are installed between the uprights. The uprights, horizontal tie rods, and diagonal tie rods are connected to each other via disc-type snap-fit ​​fasteners. The bottom of the cage frame is a fall-prevention steel plate, and the top of the cage frame is covered with protective bamboo matting. The sides of the cage frame are fixedly connected to the upper concrete support. This utility model uses disc-type snap-fit ​​components, and its structure can be adjusted and assembled according to the conditions of the construction site. The construction party only needs to rent disc-type snap-fit ​​scaffolding components as needed for on-site erection, offering flexibility and reducing construction costs.

[0004] However, the internal components of the above-mentioned device are difficult to disassemble and carry quickly during transportation, which affects the convenience of transportation. Therefore, it is necessary to provide a new type of pit-mounted prefabricated ladder cage to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a prefabricated ladder cage for pit entry, so as to solve the above-mentioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pit-mounted prefabricated ladder cage, comprising: a base plate, wherein an adjustment and disassembly mechanism is fixedly connected to the four corners of the upper surface of the base plate, a top plate is fixedly connected to the top of the adjustment and disassembly mechanism, a lifting ring is fixedly connected to the middle of the upper end of the top plate, and a first protective net is fixedly connected to the front and rear ends and the left side of the upper surface of the base plate, and the first protective net is fixedly connected to the adjustment and disassembly mechanism;

[0007] The rotating door is hinged to the right-side adjustment and splitting mechanism on one side. A support plate is fixedly connected to the upper end of the right-side adjustment and splitting mechanism on one side. Protective mechanisms are installed at the four bottom corners of the top plate. A stair mechanism is installed in the middle of the upper surface of the bottom plate.

[0008] As a further description of the above technical solution: the adjustment and splitting mechanism includes fixed posts fixedly connected to the four corners of the upper surface of the base plate, connecting cylinders fixedly connected to the four corners of the bottom of the top plate, buffer springs fixedly connected to the upper end of the inner cavity of the connecting cylinders, adjusting rods fixedly connected to the bottom of the buffer springs, and the bottom of the adjusting rods being movably inserted into the fixed posts, with locking bolts inserted into the upper end of the fixed posts.

[0009] As a further description of the above technical solution: the adjusting rod is movably inserted into the connecting cylinder, the fixing post has a threaded groove adapted to the locking bolt, and the adjusting rod has equidistant insertion holes adapted to the locking bolt.

[0010] As a further description of the above technical solution: the protective mechanism includes a second protective net fixedly connected to the top plate, T-shaped blocks are installed on the left and right sides of the second protective net, and a protective adjustment net is fixedly connected to the other end of the T-shaped blocks.

[0011] As a further description of the above technical solution: the second protective net has a sliding groove adapted to the T-shaped block, and the second protective net and the T-shaped block form a sliding connection mechanism.

[0012] As a further description of the above technical solution: the stair mechanism includes a stair slab installed in the middle of the base plate, a ladder cage frame is fixedly connected to the upper end of the stair slab, and the protective adjustment net has an installation opening adapted to the ladder cage frame. Fixing bolts are inserted into the front and rear ends of the bottom of the stair slab and the front and rear ends of the ladder cage frame.

[0013] As a further description of the above technical solution: the base plate is provided with a positioning groove adapted to the stair slab, the stair slab and the ladder cage are provided with slots adapted to the fixing bolts, and the base plate and the support plate are provided with threaded grooves adapted to the fixing bolts.

[0014] This utility model provides a prefabricated ladder cage for pit installation. It has the following beneficial effects:

[0015] 1. The device is equipped with an adjustable disassembly mechanism, which, through fixed columns, connecting cylinders, adjusting rods, and locking bolts, facilitates the quick disassembly of components on the base plate and top plate, making assembly easier. The insertion holes on the adjusting rod allow for height adjustment according to construction needs, enhancing the device's practicality. The inclusion of a buffer spring provides cushioning protection during hoisting. The presence of a protective mechanism allows the protective adjustment net to be pulled after the height adjustment mechanism is completed, ensuring synchronized adjustment with the device and guaranteeing its protective effectiveness.

[0016] 2. By incorporating a stair mechanism, including stair treads, a ladder cage, and fixing bolts, the stair treads and ladder cage can be quickly disassembled during transportation, improving the ease of transporting this device. Attached Figure Description

[0017] Figure 1 This utility model provides a schematic diagram of the overall structure of a prefabricated pit-mounted ladder cage. Figure 1 ;

[0018] Figure 2 This utility model provides a schematic diagram of the overall structure of a prefabricated pit-mounted ladder cage. Figure 2 ;

[0019] Figure 3 This is a structural diagram showing the disassembled components of this utility model;

[0020] Figure 4 This is a schematic diagram of the adjusting and splitting mechanism in this utility model;

[0021] Figure 5 This is a schematic diagram of the protective mechanism in this utility model.

[0022] Legend:

[0023] 1. Base plate; 2. Adjustment and disassembly mechanism; 201. Fixed column; 202. Connecting cylinder; 203. Buffer spring; 204. Adjusting rod; 205. Locking bolt; 3. Top plate; 4. Lifting ring; 5. First protective net; 6. Rotating door; 7. Support plate; 8. Protective mechanism; 801. Second protective net; 802. Protective adjustment net; 803. T-block; 9. Stair mechanism; 901. Stair tread; 902. Stair cage frame; 903. Fixing bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1, Reference Figure 1 and Figure 2 This utility model discloses a pit-mounted assembled ladder cage, which can solve the problem that it is difficult to quickly disassemble and carry the internal components of the existing device during transportation, thus affecting the convenience of transportation of the device. It includes a base plate 1, an adjustment and disassembly mechanism 2 fixedly connected to the four corners of the upper surface of the base plate 1, a top plate 3 fixedly connected to the top of the adjustment and disassembly mechanism 2, a lifting ring 4 fixedly connected to the middle of the upper end of the top plate 3, and a first protective net 5 fixedly connected to the front and rear ends and the left side of the upper surface of the base plate 1, and the first protective net 5 is fixedly connected to the adjustment and disassembly mechanism 2.

[0026] A rotating door 6 is hinged to the right side of the adjusting and splitting mechanism 2, and a support plate 7 is fixedly connected to the upper end of the right side of the adjusting and splitting mechanism 2. Protective mechanisms 8 are installed at the four bottom corners of the top plate 3, and a stair mechanism 9 is installed in the middle of the upper surface of the bottom plate 1.

[0027] Working principle: The base plate 1 and top plate 3 facilitate the installation of the components of this device. The adjustment and disassembly mechanism 2 facilitates the quick disassembly of the components on the base plate 1 and top plate 3, making it convenient for the assembly of this device. The lifting ring 4 facilitates the hoisting and use of this device. The first protective net 5 facilitates the protection of construction personnel. The rotating door 6 facilitates the entry of construction personnel into the interior of this device. The support plate 7 facilitates the support and installation of the stair mechanism 9. The protective mechanism 8 facilitates manual adjustment following the disassembly mechanism 2 to ensure the effectiveness of the protection of this device. The stair mechanism 9 facilitates the climbing of construction personnel out of the ladder cage.

[0028] Example 2, refer to Figure 3 , Figure 4 and Figure 5 This embodiment solves the problem that existing devices are difficult to disassemble and carry quickly during transportation, thus affecting the convenience of transporting the device. The new pit-mounted prefabricated ladder cage also includes an adjusting and disassembling mechanism 2, comprising fixed posts 201 fixedly connected to the four corners of the upper surface of the base plate 1, connecting cylinders 202 fixedly connected to the four bottom corners of the top plate 3, buffer springs 203 fixedly connected to the upper end of the inner cavity of the connecting cylinders 202, adjusting rods 204 fixedly connected to the bottom of the buffer springs 203, and the bottom of the adjusting rods 204 movably inserted into the fixed posts 201. Locking bolts 205 are inserted into the upper end of the fixed posts 201, and the adjusting rods 204 are movably inserted into the connecting cylinders 202. The fixed posts 201 have threaded grooves adapted to the locking bolts 205, and the adjusting rods 204 have equidistant insertion holes adapted to the locking bolts 205. A protective mechanism 8 is included, fixedly connected to the top plate 3. The second protective net 801 has T-shaped blocks 803 installed on its left and right sides. The other end of the T-shaped blocks 803 is fixedly connected to a protective adjustment net 802. The second protective net 801 has a sliding groove that matches the T-shaped blocks 803. The second protective net 801 and the T-shaped blocks 803 form a sliding connection mechanism. The stair mechanism 9 includes a stair plate 901 installed in the middle of the base plate 1. The upper end of the stair plate 901 is fixedly connected to a ladder cage 902. The protective adjustment net 802 has an installation opening that matches the ladder cage 902. The bottom front and rear ends of the stair plate 901 and the front and rear ends of the ladder cage 902 are fitted with fixing bolts 903. The base plate 1 has a positioning groove that matches the stair plate 901. The stair plate 901 and the ladder cage 902 have slots that match the fixing bolts 903. The base plate 1 and the support plate 7 have threaded grooves that match the fixing bolts 903.

[0029] Working Principle: When this device is in use, the lifting ring 4 on the assembled ladder cage is hoisted into the pit by a crane for easy construction. When construction personnel need to enter, the rotating door 6 is opened, and they can climb the stair plate 901 to leave the ladder cage frame 902. For disassembly and transportation, the lifting ring 4 is hoisted and supported by a crane, and the locking bolt 205 is loosened to facilitate separation of the bottom plate 1 and top plate 3, facilitating assembly. The insertion hole on the adjusting rod 204 allows for easy adjustment of the device according to construction needs. The height adjustment enhances the practicality of this device. The buffer spring 203 facilitates buffering protection during hoisting. The protective mechanism 8 allows the protective adjustment net 802 to be pulled after the height adjustment of the disassembly mechanism 2, ensuring synchronized adjustment with the device and guaranteeing its protective effectiveness. After the top plate 3 is disassembled, the fixing bolts 903 can be unscrewed, facilitating the quick separation of the stair tread 901 and ladder cage 902 from the bottom plate 1 for easy individual transport and improves the convenience of transporting this device.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A prefabricated pit-mounted ladder cage, characterized in that, include: The base plate (1) has an adjustment and splitting mechanism (2) fixedly connected to the four corners of its upper surface. The top plate (3) is fixedly connected to the top of the adjustment and splitting mechanism (2). A hanging ring (4) is fixedly connected to the middle of the upper end of the top plate (3). A first protective net (5) is fixedly connected to the front and rear ends and the left side of the upper surface of the base plate (1). The first protective net (5) is fixedly connected to the adjustment and splitting mechanism (2). The rotating door (6) is hinged to the right side of the adjustment and splitting mechanism (2) which is close to each other. The upper end of the right side of the adjustment and splitting mechanism (2) is fixedly connected to the support plate (7). The bottom four corners of the top plate (3) are equipped with protective mechanisms (8). The middle of the upper surface of the bottom plate (1) is equipped with a stair mechanism (9).

2. The prefabricated pit-entry ladder cage according to claim 1, characterized in that, The adjustment and splitting mechanism (2) includes fixed posts (201) fixedly connected to the four corners of the upper surface of the base plate (1), connecting cylinders (202) fixedly connected to the four corners of the bottom of the top plate (3), buffer springs (203) fixedly connected to the upper end of the inner cavity of the connecting cylinders (202), adjusting rods (204) fixedly connected to the bottom of the buffer springs (203), and the bottom of the adjusting rods (204) is movably inserted into the fixed posts (201), and locking bolts (205) are inserted into the upper end of the fixed posts (201).

3. The prefabricated pit-entry ladder cage according to claim 2, characterized in that, The adjusting rod (204) is movably inserted into the connecting cylinder (202), the fixing column (201) has a threaded groove adapted to the locking bolt (205), and the adjusting rod (204) has equidistant insertion holes adapted to the locking bolt (205).

4. The prefabricated pit-entry ladder cage according to claim 1, characterized in that, The protective mechanism (8) includes a second protective net (801) fixedly connected to the top plate (3), and T-shaped blocks (803) are installed on the left and right sides of the second protective net (801). A protective adjustment net (802) is fixedly connected to the other end of the T-shaped block (803).

5. The prefabricated pit-entry ladder cage according to claim 4, characterized in that, The second protective net (801) has a sliding groove that is compatible with the T-shaped block (803), and the second protective net (801) and the T-shaped block (803) form a sliding connection mechanism.

6. The prefabricated pit-entry ladder cage according to claim 4, characterized in that, The stair mechanism (9) includes a stair plate (901) installed in the middle of the base plate (1). The upper end of the stair plate (901) is fixedly connected to a ladder cage (902), and the protective adjustment net (802) has an installation opening that is compatible with the ladder cage (902). Fixing bolts (903) are inserted at the bottom front and rear ends of the stair plate (901) and the front and rear ends of the ladder cage (902).

7. The prefabricated pit-entry cage according to claim 6, characterized in that, The base plate (1) has a positioning groove that matches the stair slab (901), the stair slab (901) and the ladder cage (902) have slots that match the fixing bolts (903), and the base plate (1) and the support plate (7) have threaded grooves that match the fixing bolts (903).

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