A fiberglass telescopic rod assembly

By employing a multi-section fiberglass tube sleeve-type nested structure, guide groove, and limiting mechanism design, the problems of inaccurate guidance and limiting in existing fiberglass telescopic rods are solved, resulting in a telescopic rod assembly that offers stability and flexible adjustment, suitable for fields such as power, communication, and cleaning.

CN224433041UActive Publication Date: 2026-06-30NINGBO MULUNDA OUTDOOR PRODUCTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO MULUNDA OUTDOOR PRODUCTS CO LTD
Filing Date
2025-09-01
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing fiberglass telescopic rods suffer from inaccurate guidance and inaccurate limiting in terms of structural design and functional configuration, resulting in poor operational stability, inability to position flexibly, and impact on efficiency and applicability.

Method used

It adopts a multi-section glass fiber tube sleeve nested structure, with internal guide grooves and guide blocks, equipped with a limit mechanism and a rotation adjustment mechanism, combined with a flexible buffer ring and traction rope to achieve precise guidance, stable limiting and flexible adjustment.

Benefits of technology

It achieves a telescopic pole with stable structure and precise control, improving stability, safety and operational efficiency, and adapting to diverse application scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a fiberglass telescopic rod assembly, relating to the field of telescopic rod technology. It includes: multiple fiberglass tubes, each with a progressively smaller outer diameter and a nested sleeve structure; a guide groove on the inner wall of each fiberglass tube; a guide block slidably disposed within the guide groove of adjacent fiberglass tubes; a limit mechanism positioned at the center of the guide groove for the guide block; a rotation adjustment mechanism between each fiberglass tube and adjacent fiberglass tubes; and a flexible buffer ring fixedly fitted at one end of each fiberglass tube inside adjacent fiberglass tubes. This application features a compact structure, reasonable design, good telescopicity and operational stability, and demonstrates good practicality, safety, and broad application prospects.
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Description

Technical Field

[0001] This utility model relates to the field of telescopic pole technology, and more specifically, to a glass fiber telescopic pole assembly. Background Technology

[0002] Fiberglass, as a high-strength, corrosion-resistant, lightweight, and insulating composite material, has been widely used in telescopic pole structures in fields such as power, communications, cleaning, and outdoor tools. Compared to metal telescopic poles, fiberglass telescopic poles have advantages such as light weight, high strength, good electrical conductivity, and resistance to rust, making them particularly suitable for scenarios such as power maintenance, high-altitude operations, cleaning and sanitation, and signal detection. However, existing fiberglass telescopic poles still have many shortcomings in terms of structural design and functional configuration.

[0003] First, most common fiberglass telescopic rods use a simple sleeve-plug structure, lacking precise guiding and limiting mechanisms. This makes them prone to swaying, rotation, or eccentricity during extension and retraction, affecting operational stability. Second, to simplify the structure, some products lack effective segmented limiting or adjustment mechanisms, resulting in only a fixed length or manual judgment of the extension length during use. This prevents flexible positioning according to specific needs, affecting efficiency and applicability.

[0004] Therefore, there is an urgent need for a fiberglass telescopic rod that is structurally stable, accurately positioned, and has good maneuverability to meet the actual needs of current diverse application scenarios. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a glass fiber telescopic rod assembly that can solve these problems.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A fiberglass telescopic rod assembly, comprising:

[0008] Multiple glass fiber tubes, each with a progressively smaller outer diameter and a nested sleeve structure;

[0009] Each section of the glass fiber tube has a guide groove on its inner wall, and a guide block is slidably arranged in the guide groove of an adjacent glass fiber tube. A limit mechanism is provided for the guide block in the middle of the guide groove of the glass fiber tube.

[0010] Each section of the glass fiber tube is provided with a rotation adjustment mechanism between the adjacent glass fiber tubes;

[0011] Each of the glass fiber tubes has a flexible buffer ring fixedly fitted at one end inside an adjacent glass fiber tube.

[0012] As a preferred embodiment of this utility model, the outermost end of the glass fiber tube is fixedly fitted with an anti-slip sleeve, and the anti-slip sleeve is provided with uneven stripes.

[0013] As a preferred embodiment of this utility model, each section of the glass fiber tube has multiple sets of guide grooves inside, and the glass fiber tube has a limiting groove in the middle of the guide groove, and the multiple limiting grooves are located in different positions in the guide groove.

[0014] The limiting mechanism includes a limiting block with one end slidably disposed inside the guide block. The limiting block is engaged with a limiting groove. A spring is disposed inside the guide block, and the two ends of the spring are fixedly connected to the limiting block and the guide block, respectively.

[0015] As a preferred embodiment of this utility model, each section of the glass fiber tube has an annular groove between multiple guide grooves, and the rotation adjustment mechanism includes a rotating ring fixedly sleeved on the outside of each section of the glass fiber tube, with the adjacent glass fiber tubes having markings corresponding to each guide groove at the position of the rotating ring.

[0016] As a preferred embodiment of this utility model, a traction rope is fixedly provided at the outer port of the innermost glass fiber tube, and a rope loop is fixedly connected to the end of the traction rope away from the glass fiber tube.

[0017] As a preferred embodiment of this utility model, a sealing sleeve is threadedly connected to the port of the outermost glass fiber tube.

[0018] Compared with existing technologies, the advantages of this utility model are:

[0019] 1. This application has a compact structure and reasonable design, with good extensibility and operational stability. It uses multiple glass fiber tubes connected in a nested sleeve manner to achieve flexible adjustment of the rod length, making it easy to store and carry.

[0020] 2. Each section of the tube is equipped with a guide groove and a guide block to ensure linear guiding motion during the extension and retraction process, effectively preventing rotation and shaking, and improving stability and accuracy. The limiting mechanism, in conjunction with the limiting groove and spring structure, enables multi-stage segmented positioning and prevents over-extension, enhancing safety and structural lifespan. The rotation adjustment mechanism, combined with the annular groove and rotating ring assembly, supports the guide block to slide and position between different guide grooves, making operation simple and adjustment highly accurate.

[0021] 3. Flexible buffer rings are installed at each tube end, providing cushioning, energy absorption, and impact protection to reduce component wear. The external anti-slip sleeve design enhances grip stability and comfort; the innermost layer is equipped with a traction rope and rope loop for easy remote stretching operations and improved deployment efficiency; the outermost layer is sealed with a threaded connection sleeve to improve sealing performance and prevent the rod from falling off.

[0022] In summary, this application has a novel structure, complete functions, and good practicality, security, and broad application prospects. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a side cross-sectional view of the glass fiber tube of this utility model;

[0025] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the internal structure of the glass fiber tube of this utility model.

[0027] Explanation of the labels in the diagram:

[0028] 1. Fiberglass tube; 2. Guide groove; 3. Guide block; 4. Limiting mechanism; 41. Limiting groove; 42. Limiting block; 43. Spring; 5. Rotation adjustment mechanism; 51. Annular groove; 52. Rotating ring; 6. Flexible buffer ring; 7. Anti-slip sleeve; 8. Traction rope; 9. Rope ring; 10. Sealing sleeve. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] Example

[0031] like Figure 1-4 As shown, a fiberglass telescopic rod assembly includes:

[0032] Multiple glass fiber tubes 1, each glass fiber tube 1 having a progressively smaller outer diameter and a sleeve-type nested structure;

[0033] Each section of glass fiber tube 1 has a guide groove 2 on its inner wall. A guide block 3 is slidably arranged in the guide groove 2 between adjacent glass fiber tubes 1. A limit mechanism 4 is provided for the guide block 3 in the middle of the guide groove 2 of the glass fiber tube 1.

[0034] Each section of fiberglass tube 1 is provided with a rotation adjustment mechanism 5 between it and the adjacent fiberglass tube 1;

[0035] A flexible buffer ring 6 is fixedly fitted at one end of each glass fiber tube 1 located inside an adjacent glass fiber tube 1.

[0036] In a further embodiment, multiple sections of fiberglass tube 1 constitute the main load-bearing structure of the telescopic rod. Each section is inserted into the next section to achieve length adjustment. The sleeve-type nested structure realizes the telescopic function, making it easy to store and carry. The guide groove 2 limits the telescopic direction, so that each section of fiberglass tube 1 moves along a predetermined axis during the telescopic process, effectively preventing the fiberglass tube 1 from rotating and shaking during the stretching or shrinking process, improving structural stability and control precision, and avoiding jamming due to deviation. The guide block 3 is embedded in the guide groove 2, and together with it forms a linear guide rail system to achieve controllable sliding. The limiting mechanism 4 limits the sliding range of the guide block 3, thereby controlling the maximum pull-out length of each telescopic tube, preventing excessive pull-out that could cause separation or damage, improving safety and structural lifespan, and also enabling segmented positioning to enhance the flexibility of use.

[0037] The rotation adjustment mechanism 5 is lifted on the limiting mechanism 4 to adjust and control the stretching length of each glass fiber tube 1. The flexible buffer ring 6 provides buffering during the extension and contraction process, absorbs the impact force between tube sections, and has both friction adjustment and limiting auxiliary functions.

[0038] Specifically, the outermost fiberglass tube 1 is fixedly fitted with an anti-slip sleeve 7, which has uneven stripes.

[0039] In a further embodiment, the anti-slip sleeve 7 is fixedly installed at the end of the outermost fiberglass tube 1, serving as a handhold or support position for the user, enhancing grip friction and preventing slippage during use. The surface of the anti-slip sleeve 7 is provided with uneven stripes to further improve grip stability and comfort.

[0040] Specifically, each section of glass fiber tube 1 has multiple sets of guide grooves 2 inside, and the glass fiber tube 1 has a limiting groove 41 in the middle of the guide groove 2, and the multiple limiting grooves 41 are located in different positions in the guide groove 2.

[0041] The limiting mechanism 4 includes a limiting block 42 that is slidably disposed inside the guide block 3 at one end. The limiting block 42 is engaged with the limiting groove 41. A spring 43 is disposed inside the guide block 3. The two ends of the spring 43 are fixedly connected to the limiting block 42 and the guide block 3, respectively.

[0042] In a further embodiment, the limiting groove 41 can be used to position the rod in segments at different length positions according to the needs of use, so as to realize multi-level telescopic adjustment, adapt to different working heights and application scenarios. The limiting block 42 slides into different limiting grooves 41 during the telescopic process to realize automatic limiting. The structure is simple and the response is fast. It can be automatically reset by internal elastic force. The spring 43 provides elastic pushing force for the limiting block 42, so that it has the functions of elastic locking and automatic reset.

[0043] Specifically, each section of glass fiber tube 1 has an annular groove 51 between multiple guide grooves 2, and the rotation adjustment mechanism 5 includes a rotating ring 52 fixedly sleeved on the outside of each section of glass fiber tube 1. The adjacent glass fiber tubes 1 are marked with corresponding identifiers for each guide groove 2 at the position of the rotating ring 52.

[0044] In a further embodiment, the annular groove 51 connects multiple guide grooves 2, allowing the guide block 3 to slide between different guide grooves 2. At the same time, the limiting block 42 can be engaged with the limiting groove 41 at different positions to achieve multi-level telescopic adjustment. The glass fiber tube 1 is rotated by the rotating ring 52, thereby driving the guide block 3 to adjust its position between multiple guide grooves 2. The marked scale facilitates the confirmation of the position of multiple guide grooves 2, allowing the guide block 3 to slide on different guide grooves 2.

[0045] Specifically, a traction rope 8 is fixedly installed at the outer end of the innermost fiberglass tube 1, and a rope loop 9 is fixedly connected to the end of the traction rope 8 away from the fiberglass tube 1.

[0046] In a further embodiment, the traction rope 8 serves as an auxiliary device for manually extending the telescopic rod. By pulling the rope, the fiberglass tube 1 can be pulled out section by section, and the rope loop 9 provides the user with the convenience of holding, hooking, and dragging.

[0047] Specifically, a sealing sleeve 10 is threadedly connected to the port of the outermost glass fiber tube 1.

[0048] In a further embodiment, the sealing sleeve 10 is used to seal the port of the outermost glass fiber tube 1 to prevent other glass fiber tubes 1 inside the glass fiber tube 1 from falling off.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A fiberglass telescopic rod assembly, characterized in that, include: Multiple glass fiber tubes (1), each with an outer diameter that decreases sequentially and has a sleeve-type nested structure; Each section of the glass fiber tube (1) has a guide groove (2) on its inner wall. A guide block (3) is slidably arranged in the guide groove (2) of an adjacent glass fiber tube (1). A limit mechanism (4) is provided for the guide block (3) in the middle of the guide groove (2) of the glass fiber tube (1). A rotation adjustment mechanism (5) is provided between each glass fiber tube (1) and the adjacent glass fiber tube (1); Each of the glass fiber tubes (1) has a flexible buffer ring (6) fixedly fitted at one end inside the adjacent glass fiber tubes (1).

2. The fiberglass telescopic rod assembly according to claim 1, characterized in that: The outermost glass fiber tube (1) is fixedly fitted with an anti-slip sleeve (7), which has uneven stripes.

3. The fiberglass telescopic rod assembly according to claim 1, characterized in that: Each section of the glass fiber tube (1) has multiple sets of guide grooves (2) inside. The glass fiber tube (1) has a limiting groove (41) in the middle of the guide groove (2), and the multiple limiting grooves (41) are located in different positions in the guide groove (2). The limiting mechanism (4) includes a limiting block (42) with one end slidably disposed inside the guide block (3). The limiting block (42) is engaged with the limiting groove (41). A spring (43) is disposed inside the guide block (3). The two ends of the spring (43) are fixedly connected to the limiting block (42) and the guide block (3) respectively.

4. A fiberglass telescopic rod assembly according to claim 3, characterized in that: Each section of the glass fiber tube (1) has an annular groove (51) between multiple guide grooves (2). The rotation adjustment mechanism (5) includes a rotating ring (52) fixedly sleeved on the outside of each section of the glass fiber tube (1). The positions of adjacent glass fiber tubes (1) on the rotating ring (52) are marked with a corresponding identifier for each guide groove (2).

5. A fiberglass telescopic rod assembly according to claim 1, characterized in that: A traction rope (8) is fixedly installed at the outer port of the innermost glass fiber tube (1), and a rope loop (9) is fixedly connected to the end of the traction rope (8) away from the glass fiber tube (1).

6. A fiberglass telescopic rod assembly according to claim 1, characterized in that: A sealing sleeve (10) is threaded onto the port of the outermost glass fiber tube (1).