Telescopic structure for elevator cage

Abstract

The utility model discloses a telescopic structure for a ladder cage, which relates to the field of ladder cage installation and comprises a main rod, an auxiliary rod is slidably connected in the main rod, a screw rod is in threaded connection with the inner bottom of the auxiliary rod, a support leg is fixedly mounted at the bottom end of the screw rod, a plurality of adjusting holes are formed in the outer surface of the auxiliary rod, and the adjusting holes are in threaded connection with the screw rod. And the positions, close to the bottoms, of the outer portions of the main rods are in threaded connection with bolts, the bolts penetrate into the adjusting holes, the main rods and the auxiliary rods form telescopic assemblies, the number of the telescopic assemblies is four, the telescopic assemblies are arranged in a rectangular shape, and a connecting structure is arranged between every two main rods. According to the telescopic structure for the elevator cage, the problem that the elevator cage cannot be rooted and fixed due to the fact that the excavation elevation cannot be accurately controlled along with continuous downward excavation in the excavation process of a traditional subway deep foundation pit is solved, the elevator cage can root at any time, the requirement for the flatness of a base is not high, and the stability of the elevator cage can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of ladder cage installation, in particular to a telescopic structure for a ladder cage. Background Art

[0002] Ladder cages are mainly composed of stairs, protective nets and main frames. Stairs can be used for climbing, and the protective nets play a role in safety protection. They are also called hanging baskets and are a safety protection device used in high-altitude construction. They are composed of flat steel, galvanized mesh and connecting devices, and can be hung on mechanical equipment such as booms or cranes. Ladder cages are available in single, double and multi-person types, and can be selected according to actual needs.

[0003] However, during the excavation of the subway deep foundation pit, as the excavation continued, the excavation elevation could not be accurately controlled, resulting in the cage being unable to take root and fix;

[0004] To this end, this case proposes a telescopic structure for a ladder cage to solve the above technical problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a telescopic structure for a ladder cage, which can effectively solve the technical problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A telescopic structure for a ladder cage comprises a main rod, wherein a secondary rod is slidably connected to the inside of the main rod, a screw is threadedly connected to the internal bottom position of the secondary rod, a support foot is fixedly installed at the bottom end of the screw, a plurality of adjustment holes are opened on the outer surface of the secondary rod, and a bolt is threadedly connected to the outside of the main rod near the bottom, and the bolt passes through the inside of the adjustment hole, the main rod and the secondary rod constitute a telescopic assembly, and the telescopic assembly is provided with four and arranged in a rectangular shape, and a connecting structure is provided between every two main rods, and the connecting structure comprises a sleeve rod, a first connecting rod and a second connecting rod, one end of the first connecting rod and the second connecting rod are respectively connected to the outside of two adjacent main rods, and the sleeve rod is sleeved on the outside of the first connecting rod and the second connecting rod.

[0008] As a further solution of the utility model, a mounting piece is fixedly mounted on the top end of the main rod, the mounting piece is arranged in an "L" shape, and mounting holes are provided on the front surface and the side surface of the mounting piece.

[0009] As a further solution of the utility model, the connection structure also includes a vertical pole, which is fixedly installed at the upper center position of the sleeve rod, and the top of the vertical pole is threadedly connected with a stud, and the top of the stud is fixedly installed with a connecting head.

[0010] As a further solution of the utility model, a turntable is rotatably mounted on the top of the connector, and a rubber pad is fixedly mounted on the upper part of the turntable.

[0011] As a further solution of the utility model, the upright pole and the connecting head are both arranged in a rectangular shape.

[0012] As a further solution of the utility model, the support foot is arranged in a conical shape, and an external hexagonal block is fixedly installed at the connection between the support foot and the screw.

[0013] The beneficial effects of the utility model are as follows:

[0014] By setting a connection structure, the four main rods are connected together through the sleeve rod, the first connecting rod and the second connecting rod, so that the entire telescopic structure is more stable. When supporting the ladder cage, the supporting strength of the bottom of the ladder cage can be guaranteed, and the stability is higher than that of a single use.

[0015] By arranging the vertical rod to cooperate with the connecting head and the turntable, after the ladder cage is installed, the stud can be driven to move upward by rotating the connecting head, and then the sleeve rod, the first connecting rod and the second connecting rod are cooperated to support the middle position of the bottom support beam of the ladder cage, thereby further increasing the stability of the ladder cage;

[0016] By setting up a telescopic structure for the entire ladder cage, the problem of the ladder cage being unable to take root and fix due to the inability to accurately control the excavation elevation during traditional subway deep foundation pit excavation is solved. The structure can allow the ladder cage to take root at any time, does not require high flatness of the base, and can also ensure the stability of the ladder cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a telescopic structure for a ladder cage according to the utility model;

[0018] Figure 2 This is a demonstration diagram of the installation of a telescopic structure for a ladder cage of the utility model;

[0019] Figure 3 This is a cross-sectional view of a main rod and a secondary rod of a telescopic structure for a ladder cage of the utility model;

[0020] Figure 4 It is an enlarged cross-sectional view of a vertical rod of a telescopic structure for a ladder cage of the utility model.

[0021] In the figure: 1. main rod; 2. auxiliary rod; 3. screw rod; 4. support foot; 5. adjustment hole; 6. bolt; 7. mounting piece; 8. mounting hole; 9. connection structure; 10. sleeve rod; 11. first connecting rod; 12. second connecting rod; 13. vertical rod; 14. stud; 15. connecting head; 16. turntable; 17. rubber pad. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 4 As shown, a telescopic structure for a ladder cage includes a main rod 1, a secondary rod 2 is slidably connected to the inside of the main rod 1, a screw rod 3 is threadedly connected to the bottom position of the inside of the secondary rod 2, a support foot 4 is fixedly installed at the bottom end of the screw rod 3, a plurality of adjustment holes 5 are opened on the outer surface of the secondary rod 2, and a bolt 6 is threadedly connected to the outside of the main rod 1 near the bottom position, and the bolt 6 penetrates into the inside of the adjustment hole 5, the main rod 1 and the secondary rod 2 form a telescopic assembly, and the telescopic assembly is provided with four and arranged in a rectangular shape, and a connecting structure 9 is provided between every two main rods 1, and the connecting structure 9 includes a sleeve rod 10, a first connecting rod 11 and a second connecting rod 12, one end of the first connecting rod 11 and the second connecting rod 12 are respectively connected to the outside of two adjacent main rods 1, and the sleeve rod 10 is sleeved on the outside of the first connecting rod 11 and the second connecting rod 12.

[0024] In this embodiment, a mounting member 7 is fixedly mounted on the top of the main rod 1. The mounting member 7 is arranged in an "L" shape, and mounting holes 8 are provided on the front surface and the side surface of the mounting member 7.

[0025] The mounting member 7 is used to connect with the support beam at the bottom of the cage, so that the telescopic structure supports the cage.

[0026] In this embodiment, the connection structure 9 further includes a vertical rod 13, which is fixedly mounted at the upper center of the sleeve rod 10, and a stud 14 is threadedly connected to the top of the vertical rod 13, and a connector 15 is fixedly mounted on the top of the stud 14;

[0027] The connection structure 9 can increase the connection strength between each main rod 1, and can also support the middle position of the bottom support beam of the cage, thereby improving the stability of the cage.

[0028] In this embodiment, a turntable 16 is rotatably mounted on the top of the connector 15, and a rubber pad 17 is fixedly mounted on the upper portion of the turntable 16;

[0029] The turntable 16 can play a role of rotation, and when the connecting head 15 is rotated, friction with the ladder cage can be avoided, and the rubber pad 17 can play a role of increasing friction and improving stability.

[0030] In this embodiment, the upright pole 13 and the connector 15 are both arranged in a rectangular shape;

[0031] The connecting head 15 having a rectangular shape can be easily rotated using an external tool.

[0032] In this embodiment, the support leg 4 is arranged in a conical shape, and an external hexagonal block is fixedly installed at the connection between the support leg 4 and the screw rod 3;

[0033] The support foot 4 cooperates with the screw rod 3 to perform fine adjustment in height, and the length of the screw rod 3 is greater than the distance between the two adjustment holes 5 .

[0034] It should be noted that the utility model is a telescopic structure for a ladder cage. When in use, the entire telescopic structure is placed in a deep foundation pit, and then the bolts 6 are removed, and the auxiliary rod 2 is moved at the bottom of the main rod 1 to adjust it to a suitable length. The four main rods 1 and the auxiliary rods 2 are operated in the same way, and then the screw rod 3 is rotated, and the screw rod 3 drives the support foot 4 to move, and the height of each auxiliary rod 2 is adjusted so that the entire telescopic structure remains horizontal. At the same time, the position of each main rod 1 is moved, and the main rod 1 drives the first connecting rod 11 and the second connecting rod 12 to slide inside the sleeve rod 10, so that the rectangular structure surrounded by the four main rods 1 is adapted to the size of the ladder cage;

[0035] Place the cage between the four mounting pieces 7, then use the external fixing piece to pass through the mounting hole 8 to connect and fix the cage to the mounting piece 7, and finally rotate the connector 15, the connector 15 drives the stud 14 to rotate, and the stud 14 drives the connector 15 to move upward. When the rubber pad 17 contacts the bottom of the cage, continue to rotate the connector 15. At this time, the turntable 16 is limited by the cage because it is rotatable. After the connector 15 is continuously rotated, the rubber pad 17 is supported at the bottom of the cage to support the crossbeam at the bottom of the cage.

[0036] By providing the connection structure 9, the four main rods 1 are connected together through the sleeve rod 2, the first connecting rod 11 and the second connecting rod 12, so that the entire telescopic structure is more stable. When supporting the ladder cage, the supporting strength of the bottom of the ladder cage can be guaranteed, and the stability is higher than that of a single use.

[0037] By arranging the vertical rod 13 to cooperate with the connecting head 15 and the rotating disk 16, after the ladder cage is installed, the stud 14 can be driven to move upward by rotating the connecting head 15, and then the sleeve rod 2, the first connecting rod 11 and the second connecting rod 12 are cooperated to support the middle position of the bottom support beam of the ladder cage, thereby further increasing the stability of the ladder cage;

[0038] By setting up a telescopic structure for the entire ladder cage, the problem of the ladder cage being unable to take root and fix due to the inability to accurately control the excavation elevation during traditional subway deep foundation pit excavation is solved. The structure can allow the ladder cage to take root at any time, does not require high flatness of the base, and can also ensure the stability of the ladder cage.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A telescopic structure for a ladder cage, comprising a main rod (1), wherein a secondary rod (2) is slidably connected inside the main rod (1), a screw rod (3) is threadedly connected at the bottom position inside the secondary rod (2), a support foot (4) is fixedly installed at the bottom end of the screw rod (3), a plurality of adjustment holes (5) are opened on the outer surface of the secondary rod (2), and a bolt (6) is threadedly connected near the bottom position of the outer part of the main rod (1), and the bolt (6) penetrates into the inside of the adjustment hole (5), characterized in that: The main rod (1) and the auxiliary rod (2) form a telescopic assembly. The telescopic assembly is provided with four and arranged in a rectangular shape. A connecting structure (9) is provided between every two main rods (1). The connecting structure (9) comprises a sleeve rod (10), a first connecting rod (11) and a second connecting rod (12). One end of the first connecting rod (11) and the second connecting rod (12) are respectively connected to the outside of two adjacent main rods (1), and the sleeve rod (10) is sleeved on the outside of the first connecting rod (11) and the second connecting rod (12).

2. A telescopic structure for a ladder cage according to claim 1, characterized in that: A mounting member (7) is fixedly mounted on the top end of the main rod (1); the mounting member (7) is arranged in an "L" shape, and mounting holes (8) are provided on the front surface and the side surface of the mounting member (7).

3. A telescopic structure for a ladder cage according to claim 1, characterized in that: The connection structure (9) further comprises a vertical rod (13), wherein the vertical rod (13) is fixedly mounted at the upper center position of the sleeve rod (10), a stud (14) is threadedly connected to the top of the vertical rod (13), and a connecting head (15) is fixedly mounted on the top end of the stud (14).

4. A telescopic structure for a ladder cage according to claim 3, characterized in that: A turntable (16) is rotatably mounted on the top of the connector (15), and a rubber pad (17) is fixedly mounted on the upper portion of the turntable (16).

5. A telescopic structure for a ladder cage according to claim 3, characterized in that: The upright pole (13) and the connecting head (15) are both arranged in a rectangular shape.

6. A telescopic structure for a ladder cage according to claim 1, characterized in that: The support foot (4) is arranged in a conical shape, and an external hexagonal block is fixedly installed at the connection between the support foot (4) and the screw rod (3).

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