Telescopic rod with anti-rotation and anti-overpressure high-locking structure

Abstract

The utility model relates to a telescopic rod with an anti-rotation and anti-overpressure high-locking structure, which belongs to the technical field of connecting rods and comprises a screwed pipe joint and a grab handle, and a plurality of connecting sleeves which are mutually inserted are arranged between the screwed pipe joint and the grab handle. And a locking fastener which is movably pressed and sleeved with the connecting sleeves is arranged between the two adjacent connecting sleeves. The locking fastener comprises a locking connector, a pressing groove is formed in the upper end of the locking connector, a pressing lock catch is arranged at the upper end of the pressing groove, and a bolt pipe connected with the locking connector in an inserted mode is arranged in the pressing lock catch. The device has the characteristics of compact structure, convenience in use and good structural stability. The problems of convenient limiting and locking and rapid attenuation of the locking force in the use process of the telescopic rod are solved. The telescopic rod can be fixed and prevented from rotating at any length, and meanwhile the effect that the locking force is kept stable and reliable is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rods, in particular to a telescopic rod with an anti-rotation and anti-overpressure high locking structure. Background Art

[0002] A telescopic rod is a retractable rod-shaped object. It is a retractable hollow cylindrical rod made of metal strips, glass fiber, carbon fiber, or plastic sheets. Its retractable nature makes it extremely economical and convenient to transport and store.

[0003] Telescopic poles have a wide range of uses, finding applications in all aspects of life, such as as telescopic poles for selfie cameras, as connecting rods for tablet computer holders, and as stretchable clothes drying poles. They are also widely used in daily home cleaning, curtain wall cleaning, garden maintenance, fruit and vegetable picking, renewable energy facility cleaning, digital product function expansion, and building decoration and construction.

[0004] Currently, the mainstream locking structure device of the telescopic rod on the market is made of a single nylon material through injection molding. Affected by the uncertainty of the material's force attenuation characteristics, the pressure block, as an important component in the locking device structure, if its design thickness is too thick, will cause over-pressure to cause damage to the plug tube inside the telescopic rod or it will be unable to recover after being deformed by pressure, thereby affecting the stretching function. If the design thickness is insufficient, the locking mechanism will be subjected to force attenuation and the locking force will drop significantly.

[0005] Based on the current market situation, telescopic rod products with the same type of locking structure experience a significant decrease in locking force or even near failure shortly after use. For usage scenarios with certain locking force requirements, the performance will not meet expectations, which not only brings a poor user experience, but also increases economic costs and wastes environmental resources. Summary of the Invention

[0006] This utility model primarily addresses the shortcomings of the prior art by providing a telescopic rod with an anti-rotation, anti-overpressure, and high-locking structure. The structure is compact, easy to use, and has excellent structural stability. It solves the problem of achieving convenient positional locking and rapid attenuation of the locking force during use. While securing the telescopic rod at any length and preventing rotation, it also achieves a stable and reliable locking force.

[0007] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0008] A telescopic rod with an anti-rotation, anti-overpressure, and high-locking structure comprises a threaded pipe joint and a handle. A plurality of interlocking connecting sleeves are interposed between the threaded pipe joint and the handle. A locking fastener is provided between two adjacent connecting sleeves, which is movably pressed and sleeved with the connecting sleeves. The locking fastener comprises a locking joint, a pressure groove is provided at the upper end of the locking joint, a press lock is provided at the upper end of the pressure groove, and a pin tube is provided within the press lock, which is interlocked with the locking joint.

[0009] Preferably, an upper pressing block is provided in the pressing groove, and a lower elastic sheet is provided between the upper pressing block and the connecting sleeve. The lower elastic sheet deforms under pressure to increase friction, thereby achieving a high locking force, while also acting as a pressure buffer to a certain extent, reducing the risk of overpressure.

[0010] Preferably, locking joint steps are provided on both sides of the pressure groove, and upper pressure block steps are provided on both sides of the upper pressure block, which engage with the locking joint steps. The locking joint steps and the upper pressure block steps act as a preventive measure against overpressure. When the pressure of the lower pressure block exceeds the upper pressure block, the upper pressure block steps act as stoppers, reducing the downward pressure and preventing deformation of the inner tube caused by excessive pressure. When the downward pressure is insufficient, the upper pressure block steps can be slightly deformed by the force applied to increase the downward pressure, thereby ensuring a high locking force.

[0011] Preferably, the locking joint is provided with a joint hole for being sleeved with the connecting sleeve, and the inner wall of the joint hole is provided with a flange nail, which plays a role of preventing rotation.

[0012] Preferably, a bushing is provided between two adjacent connecting sleeves, and a gasket ring is provided between the locking fastener and the connecting sleeve.

[0013] Preferably, the cross-section of the latch tube and the gasket ring is in a "C" shape.

[0014] Preferably, the rear end of the handle is provided with a tail cover threadedly connected to the handle.

[0015] The utility model can achieve the following effects:

[0016] This utility model provides a telescopic rod with an anti-rotation, anti-overpressure, and high-locking structure. Compared with existing technologies, it features a compact structure, convenient use, and excellent structural stability. It solves the problem of achieving convenient positional locking and rapid attenuation of the locking force during use of the telescopic rod. While securing the telescopic rod at any length and preventing rotation, it also achieves a stable and reliable locking force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2It is a schematic diagram of the explosion structure of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the locking fastener in the utility model.

[0020] Figure 4 It is a structural schematic diagram of the upper pressing block in the utility model.

[0021] Figure 5 It is a structural schematic diagram of the locking joint in the utility model.

[0022] In the figure: threaded pipe joint 1, locking fastener 2, connecting sleeve 3, handle 4, tail cover 5, gasket ring 6, bushing 7, push lock 8, latch tube 9, upper pressure block 10, lower elastic sheet 11, locking joint 12, pressure groove 13, locking joint step 14, upper pressure block step 15, joint hole 16, flange nail 17. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0024] Example: Figure 1-5 The figure shows a telescopic rod with an anti-rotation, anti-overpressure, and high-locking structure. It includes a threaded pipe joint 1 and a handle 4. The rear end of the handle 4 is provided with a tail cap 5 that is threadedly connected to the handle 4. Five interconnected connecting sleeves 3 are interposed between the threaded pipe joint 1 and the handle 4. A locking fastener 2 is provided between two adjacent connecting sleeves 3, which is movably pressed and sleeved with the connecting sleeves 3. A bushing 7 is provided between two adjacent connecting sleeves 3. A spacer ring 6 is provided between the locking fastener 2 and the connecting sleeves 3. The spacer ring 6 has a C-shaped cross-section.

[0025] The locking fastener 2 includes a locking connector 12, which has a connector hole 16 that engages with the connecting sleeve 3. A flange pin 17 is provided on the inner wall of the connector hole 16. A pressing groove 13 is provided at the upper end of the locking connector 12, and a push-lock buckle 8 is provided at the upper end of the pressing groove 13. A latch tube 9 is provided within the push-lock buckle 8, which engages with the locking connector 12. The latch tube 9 has a C-shaped cross-section. An upper pressing block 10 is provided within the pressing groove 13, and a lower elastic sheet 11 is provided between the upper pressing block 10 and the connecting sleeve 3. Locking connector steps 14 are provided on both sides of the pressing groove 13, and upper pressing block steps 15 are provided on both sides of the upper pressing block 10 to engage with the locking connector steps 14.

[0026] In summary, this telescopic rod with an anti-rotation, anti-overpressure, and high-locking structure is compact, easy to use, and highly stable. It solves the problem of achieving convenient positional locking and rapid attenuation of the locking force during use. While securing the telescopic rod at any length and preventing rotation, it also ensures stable and reliable locking force.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0028] In summary, the above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. A telescopic rod with an anti-rotation and anti-overpressure high locking structure, characterized by: It comprises a threaded pipe joint (1) and a handle (4), wherein a plurality of mutually plugged connecting sleeves (3) are provided between the threaded pipe joint (1) and the handle (4), and a locking fastener (2) movably pressed and sleeved with the connecting sleeves (3) is provided between two adjacent connecting sleeves (3); the locking fastener (2) comprises a locking joint (12), the upper end of the locking joint (12) is provided with a pressing groove (13), the upper end of the pressing groove (13) is provided with a pressing lock (8), a pin tube (9) plugged with the locking joint (12) is provided in the pressing lock (8), an upper pressing block (10) is provided in the pressing groove (13), a lower elastic sheet (11) is provided between the upper pressing block (10) and the connecting sleeve (3), locking joint steps (14) are provided on both sides of the pressing groove (13), and upper pressing block steps (15) snap-fitted with the locking joint steps (14) are provided on both sides of the upper pressing block (10).

2. The telescopic rod with an anti-rotation and anti-overpressure high locking structure according to claim 1, characterized in that: The locking joint (12) is provided with a joint hole (16) for sleeve connection with the connecting sleeve (3), and a flange nail (17) is provided on the inner wall of the joint hole (16).

3. The telescopic rod with an anti-rotation and anti-overpressure high locking structure according to claim 1, characterized in that: A bushing (7) is provided between two adjacent connecting sleeves (3), and a gasket ring (6) is provided between the locking fastener (2) and the connecting sleeve (3).

4. The telescopic rod with an anti-rotation and anti-overpressure high-locking structure according to claim 3, characterized in that: The cross-sections of the latch tube (9) and the gasket ring (6) are in a "C"-shaped structure.

5. The telescopic rod with an anti-rotation and anti-overpressure high locking structure according to claim 1, characterized in that: The rear end of the handle (4) is provided with a tail cover (5) which is threadedly sleeved with the handle (4).

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