Telescopic rod

Abstract

The telescopic rod comprises a main rod, an auxiliary rod and an adjusting rod, the two ends of the adjusting rod are connected with the main rod and the auxiliary rod in an inserted and embedded mode respectively, a limiting piece is arranged on the main rod, and a limiting block is arranged on the adjusting rod. The beneficial effects of the utility model are that: the nesting design is used, and the storage volume is reduced. The limiting function of the structure is achieved through the clamp, operation is convenient, and simplicity and practicability are achieved. According to the utility model, the nested design is adopted, and the adjusting pipe is designed into a retractable structure, so that the two ends of the retractable structure are always in the same horizontal line in the unfolded and folded states.

Description

Technical Field

[0001] The utility model relates to the field of platform accessories, in particular to a telescopic rod. Background Art

[0002] Detachable metal platforms generally use metal rods combined with connecting pieces to form the platform skeleton, including metal rods with telescopic structures as their accessories. Existing telescopic structures use an integrated multi-section design or a split multi-section design. The integrated multi-section design uses a stepped design. The integrated multi-section design has the advantage of a small storage volume. However, in the deployed state, the two end points of the overall adjustment structure cannot be at the same horizontal position and can only be used as a vertical telescopic support structure, unable to meet the usage scenario of being a horizontal platform support structure. The split multi-section design is convenient for disassembly, but has a large storage volume, and each adjustment tube can only be stacked, wasting space. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems and design a telescopic rod. The specific design scheme is as follows:

[0004] A telescopic rod includes a main rod, a secondary rod, and an adjustment rod. The diameters of the main rod and the secondary rod are the same, and they do not insert into each other. The two ends of the adjustment rod are respectively inserted and connected to the main rod and the secondary rod. When the two ends of the adjustment rod are completely embedded in the main rod and the secondary rod, it is the contracted state of the telescopic rod. When only the left and right ends of the adjustment rod are respectively embedded in the main rod and the secondary rod, it is the extended state of the telescopic rod. A limiting member is provided on the main rod, and a limiting block is provided on the adjustment rod.

[0005] In the extended state, the limiting member is away from the limiting block.

[0006] In the contracted state, the limiting member abuts against the limiting block.

[0007] The secondary rod is fixedly connected to the adjustment rod. This structure ensures that after the telescopic rod is installed on the platform, the adjustment rod will not be pushed out of the main rod or the secondary rod due to lack of limitation.

[0008] The limiting member is fixed to the main rod through a base. The limiting member and the base are rotationally connected through a pin, and a torsion spring is sleeved on the pin.

[0009] A square hole is provided on the main rod. The main rod and the secondary rod are both rectangular square tubes. The adjustment rod is a metal profile. One end of the limiting member passes through the square hole and is embedded in the profile groove of the adjustment rod. The limiting block is located in the profile groove of the adjustment rod.

[0010] The limiting block is a wedge-shaped structure. In the contracted state, the limiting member abuts against the side end of the limiting block.

[0011] The telescopic rod obtained by the above technical solution of the present utility model has the beneficial effects that:

[0012] Using a nested design to reduce the storage volume. The limiting function of the structure is realized through a fixture, which is convenient to operate, simple and practical. The present utility model uses a nested design, and the adjusting tube is designed as a retractable structure, ensuring that both ends of the telescopic structure are always on the same horizontal line in the deployed and stored states. Brief Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the telescopic rod of the present utility model in the retracted state;

[0014] Figure 2 is a schematic structural diagram of the telescopic rod of the present utility model in the extended state;

[0015] Figure 3 is a schematic cross-sectional structural diagram of the limiting member of the telescopic rod of the present utility model in the retracted state;

[0016] Figure 4 is a schematic cross-sectional structural diagram of the limiting member of the telescopic rod of the present utility model in the extended state;

[0017] Figure 5 is an exploded structural diagram of the limiting member and the base of the present utility model;

[0018] Figure 6 is a schematic cross-sectional structural diagram of the limiting member passing over the limiting block of the present utility model;

[0019] Figure 7 is a schematic structural diagram of the telescopic rod of the present utility model installed on a platform;

[0020] In the figure, 1 is the main rod; 2 is the auxiliary rod; 3 is the adjusting rod; 4 is the limiting member; 5 is the limiting block; 6 is the base; 7 is the shaft pin; 8 is the torsion spring; 9 is the square hole. Detailed Embodiment

[0021] The present utility model will be specifically described below with reference to the accompanying drawings.

[0022] A telescopic rod includes a main rod 1, an auxiliary rod 2, and an adjusting rod 3. The diameters of the main rod 1 and the auxiliary rod 2 are the same, and they do not inter-embed with each other. The two ends of the adjusting rod 3 are respectively inserted and connected with the main rod 1 and the auxiliary rod 2. When both ends of the adjusting rod 3 are completely embedded in the main rod 1 and the auxiliary rod 2, it is the retracted state of the telescopic rod. When only the left and right ends of the adjusting rod 3 are respectively embedded in the main rod 1 and the auxiliary rod 2, it is the extended state of the telescopic rod. A limiting member 4 is provided on the main rod 1, and a limiting block 5 is provided on the adjusting rod 3.

[0023] In the extended state, the limiting member 4 is away from the limiting block 5.

[0024] In the retracted state, the limiting member 4 abuts against the limiting block 5.

[0025] The auxiliary rod 2 is fixedly connected to the adjusting rod 3. This structure ensures that after the telescopic rod is installed on the platform, it will not be lifted out of the main rod 1 or the auxiliary rod 2 due to the adjusting rod 3 not being limited.

[0026] The limiting member 4 is fixed to the main rod 1 through a base 6. The limiting member 4 is rotatably connected to the base 6 through a pin 7, and a torsion spring 8 is sleeved on the pin 7.

[0027] A square hole 9 is provided on the main rod 1. The main rod 1 and the auxiliary rod 2 are both rectangular square tubes. The adjusting rod 3 is a metal profile. One end of the limiting member 4 passes through the square hole 9 and is embedded in the profile groove of the adjusting rod 3. The limiting block 5 is located in the profile groove of the adjusting rod 3.

[0028] The limiting block 5 is a wedge-shaped structure. In the retracted state, the limiting member 4 abuts against the side end of the limiting block 5.

[0029] During the unfolding process, first press the limiting member 4. At this time, the torsion spring 8 is compressed, and one end of the limiting member 4 disengages from the square hole 9. Then, pull out the adjusting rod 3 from the main rod 1 to complete the extension.

[0030] During the retraction process, insert the adjusting rod 3 into the main rod 1. The limiting member 3 passes over the wedge-shaped surface at one end of the limiting block 5 and abuts against the other end of the limiting block 5.

[0031] The ends of the main rod 1 and the auxiliary rod 2 are respectively connected to other components of the platform skeleton. Since the structure of the platform skeleton is fixed, there is no need to worry about the problem of the adjusting rod 3 being disengaged from the main rod 1.

[0032] If it is necessary to ensure that the adjusting rod 3 will not be disengaged from the main rod 1, limiting blocks 5 can be provided at both ends of the adjusting rod 3. The two limiting blocks are axisymmetric. During retraction, the limiting member 4 abuts against one limiting block 5. During extension, the limiting member 4 abuts against the other limiting block 5.

[0033] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to some parts by those skilled in the art of the present technology all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A telescopic rod, comprising a main rod (1), an auxiliary rod (2), and an adjusting rod (3), wherein two ends of the adjusting rod (3) are respectively plug-connected with the main rod (1) and the auxiliary rod (2), and characterized in that: The main rod (1) is provided with a limiting piece (4), and the adjusting rod (3) is provided with a limiting block (5).

2. The telescopic rod according to claim 1, characterized in that: In the extended state, the limiting member (4) is away from the limiting block (5).

3. The telescopic rod according to claim 1, characterized in that: In the contracted state, the limiting member (4) abuts against the limiting block (5).

4. The telescopic rod according to claim 1, characterized in that: The auxiliary rod (2) is fixedly connected to the adjusting rod (3).

5. The telescopic rod according to claim 1, characterized in that: The limiting member (4) is fixed on the main rod (1) via a base (6).

6. The telescopic rod according to claim 1, characterized in that: The main rod (1) is provided with a square hole (9); the main rod (1) and the auxiliary rod (2) are both rectangular square tubes; one end of the limiting member (4) passes through the square hole (9).

7. The telescopic rod according to claim 1, characterized in that: The limiting block (5) is a wedge-shaped structure.

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