Trilateral limiting structure for telescopic rod

Abstract

The trilateral limiting structure comprises an inner sleeve rod and an outer sleeve rod arranged outside the inner sleeve rod in a sleeving mode, a fixing sleeve is arranged on the outer sleeve rod, the inner sleeve rod is sleeved with a limiting sleeve ring, the limiting sleeve ring is in an opening shape and is fixedly connected with the fixing sleeve, connecting parts are formed at the two ends of the limiting sleeve ring, and inserting holes are formed in the connecting parts. The connecting rod is sleeved with an elastic piece, sliding gaskets are fixedly arranged at the two ends of the elastic piece, driving rods are hinged to the sliding gaskets, and the ends, away from the sliding gaskets, of the driving rods are hinged to abutting blocks. A limiting groove is formed in the fixing sleeve, a limiting block is movably arranged in the limiting groove, a push rod is rotationally arranged on the fixing sleeve, a driving face is formed on the push rod, and the abutting block can abut against the driving face when moving. The telescopic rod limiting structure has the beneficial effect that the telescopic rod limiting structure is better in limiting effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of telescopic rods, in particular to a triangular limiting structure for a telescopic rod. BACKGROUND

[0002] A telescopic rod is a tool or device that can adjust its length and is widely used in various fields such as cleaning, photography, measurement, construction, and outdoor activities. Its design allows users to adjust the length according to specific needs, increasing the flexibility and convenience of use. A telescopic rod mainly includes an outer tube, an inner tube, and a limiting mechanism, which is used between each tube segment to fix or release the connection of adjacent segments.

[0003] The limiting structure of the existing telescopic rod usually only limits a certain part of the inner tube, causing a large friction force between that part and the component fixed on the outer tube, thereby limiting the telescoping of the inner tube. However, the friction force of only one fixed part is limited, and the limiting effect is not good.

[0004] Therefore, the purpose of the present application is to provide a triangular limiting structure for a telescopic rod with better limiting effect. INVENTION CONTENTS

[0005] The content part of the present application is used to introduce the concept in a simple form, which will be described in detail in the specific embodiment part. The content part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] To solve the technical problems mentioned in the background part, some embodiments of the present application provide a triangular limiting structure for a telescopic rod, which includes an inner sleeve rod and an outer sleeve rod sleeved outside the inner sleeve rod. A fixed sleeve is provided on the outer sleeve rod, and a limiting sleeve ring is sleeved outside the inner sleeve rod. The limiting sleeve ring is open and fixedly connected with the fixed sleeve. The two ends of the limiting sleeve ring form a connecting part, and a through hole is formed on the connecting part. A connecting rod is slidably arranged in the through hole. One end of the connecting rod is fixedly provided with a blocking piece, and the other end is fixedly provided with a rotating shaft. A handle is rotatably arranged on the rotating shaft. The handle forms an eccentric-shaped special-shaped part along the axis of the rotating shaft. An elastic member is sleeved outside the connecting rod. The two ends of the elastic member are fixedly provided with sliding washers. A driving rod is hingedly connected to the sliding washer. The end of the driving rod away from the sliding washer is hingedly connected with a contact block. A limiting groove is formed on the fixed sleeve, and a limiting block is movably arranged in the limiting groove. An insertion slot is formed on the outer sleeve rod for the limiting block to pass through. A push rod is rotatably arranged on the fixed sleeve. A driving surface is formed on the push rod. When the contact block moves, it can be in contact with the driving surface to make the push rod press the limiting block on the inner sleeve rod.

[0007] In the working process, the inner sleeve rod can be positioned by connecting the two connecting portions of the limiting sleeve ring and making the limiting sleeve ring closely adhere to the inner sleeve rod, the locking of the limiting sleeve ring is realized by rotating the handle and extruding the connecting portion with the special-shaped portion, the double positioning of the inner sleeve rod is realized by extruding the limiting block with the push rod after the rotation of the push rod, and the positioning effect is better.

[0008] Further, the mounting portion is formed on the fixed sleeve, the rotating groove extending along the length direction of the outer sleeve rod is arranged on the mounting portion, and the push rod is rotatably arranged in the rotating groove.

[0009] Further, the side wall portion of the mounting portion is concave and penetrates into the rotating groove to form a movable groove, and the driving rod is movably arranged in the movable groove.

[0010] Further, the push rod is fixedly connected with the limiting block.

[0011] Further, the sliding pad is slidably arranged on the connecting rod.

[0012] Further, the elastic member is a spring.

[0013] Further, the opposite side wall portions of the connecting portion are concave to form accommodating grooves, and the sliding pads are arranged in the accommodating grooves.

[0014] Further, the fixed sleeve is open, the two ends of the fixed sleeve form fixed portions, and the two fixed portions are fixedly connected by bolts.

[0015] The application has the following beneficial effects:

[0016] I. When the connecting portion is extruded by the special-shaped portion by rotating the handle, the sliding pad is extruded by the connecting portion, the driving rod is moved by the sliding pad, the push rod is rotated by the driving surface of the push rod after the movement of the abutting block, the limiting block is extruded by the push rod after the rotation of the push rod, the limiting block is tightly pressed on the inner sleeve rod to realize the double positioning of the limiting sleeve ring and the limiting block, and the positioning effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0018] In addition, like reference numerals refer to like elements throughout the drawings. It should be understood that the drawings are schematic and elements and features are not necessarily to scale.

[0019] In the drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0021] Figure 2 is an enlarged view of part A of Figure 1

[0022] Figure 3 is a schematic diagram of part of the structure of an embodiment of the present application, mainly showing the push rod and the limiting block;

[0023] Figure 4 is a schematic diagram of part of the structure of an embodiment of the present application, mainly showing the elastic member and the sliding spacer;

[0024] Figure 5 is a sectional view of part of the structure of an embodiment of the present application, mainly showing the connecting structure of the push rod and the abutting block;

[0025] Figure 6 is an installation exploded view of part of the structure of an embodiment of the present application, mainly showing the connecting rod and the insertion hole.

[0026] Reference numerals:

[0027] 1, inner sleeve rod; 2, outer sleeve rod; 2a, insertion slot; 3, fixed sleeve; 3a, limiting slot; 4, limiting sleeve ring; 5, connecting part; 5a, insertion hole; 5b, accommodating slot; 6, connecting rod; 7, stop sheet; 8, rotating shaft; 9, rotating handle; 10, special-shaped part; 11, elastic member; 12, sliding spacer; 13, driving rod; 14, abutting block; 15, limiting block; 16, push rod; 16a, driving surface; 18, mounting part; 18a, rotating slot; 18b, movable slot; 19, fixed part; 20, connecting sheet. DETAILED DESCRIPTION

[0028] Embodiments of the present disclosure will be described in more detail by referring to the drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only and are not intended to limit the scope of protection of the present disclosure.

[0029] ​In addition, it needs to be noted that only parts related to the present application are shown in the drawings for the convenience of description. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0030] It should be noted that the concepts of "first", "second", and the like mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0031] It should be noted that the modification of "one" or "multiple" mentioned in the present disclosure is illustrative and not restrictive, and those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more".

[0032] The present disclosure will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0033] A triangular limiting structure for a telescopic rod, comprising an inner sleeve rod 1 and an outer sleeve rod 2 sleeved outside the inner sleeve rod 1, a fixed sleeve 3 sleeved on the outer sleeve rod 2, the fixed sleeve 3 being in the shape of an open ring, both ends of the fixed sleeve 3 forming fixed portions 19, the two fixed portions 19 being fixedly connected by bolts, and the fixed sleeve 3 being fixed on the outer sleeve rod 2 by tightening the bolts; the inner sleeve rod 1 is sleeved with a limiting sleeve ring 4, the limiting sleeve ring 4 also being in the shape of an open ring and being fixedly connected with the fixed sleeve 3 through a connecting piece 20, both ends of the limiting sleeve ring 4 forming connecting portions 5, corresponding insertion holes 5a being formed on the two connecting portions 5, a connecting rod 6 being slidably arranged in the insertion holes 5a, the connecting rod 6 being a screw rod, a blocking piece 7 being fixedly arranged at one end of the connecting rod 6, a rotating shaft 8 being fixedly arranged at the other end of the connecting rod 6, the blocking piece 7 being threadedly connected with the connecting rod 6, a handle 9 being rotatably arranged on the rotating shaft 8, the handle 9 being formed with a special-shaped portion 10 eccentric to the axis of the rotating shaft 8;

[0034] When the handle 9 is rotated, the special-shaped portion 10 can press the connecting portions 5 to make the two connecting portions 5 close to each other, thereby realizing the locking of the limiting sleeve ring 4 and making the limiting sleeve ring 4 tightly adhere to the inner sleeve rod 1 to realize preliminary limiting.

[0035] In order to improve the limiting effect, a limiting groove 3a is formed on the fixed sleeve 3, a limiting block 15 is movably arranged in the limiting groove 3a, an insertion groove 2a is formed on the outer sleeve rod 2 for the limiting block 15 to pass through, and the limiting block 15 is tightly pressed against the inner sleeve rod 1 by driving the limiting block 15 to move, thereby realizing secondary limiting and improving the limiting effect.

[0036] Specifically, the connecting rod 6 is sleeved with an elastic member 11, which is a spring, two ends of the spring are fixedly provided with sliding washers 12, the sliding washers 12 are slidably arranged on the connecting rod 6, the sliding washers 12 are hingedly connected with driving rods 13, one end of the driving rod 13 away from the sliding washer 12 is hingedly connected with an abutting block 14; the mounting portion 18 is formed on the fixed sleeve 3 at one side of the limiting groove 3a close to the limiting sleeve ring 4, the rotating groove 18a extending along the length direction of the outer sleeve rod 2 is formed on the mounting portion 18, the push rod 16 is rotatably arranged in the rotating groove 18a, the abutting block 14 is movably arranged in the rotating groove 18a, the side wall portion of the mounting portion 18 penetrates into the rotating groove 18a to form the movable groove 18b, the driving rod 13 is movably arranged in the movable groove 18b, the push rod 16 is fixedly connected with the limiting block 15, the driving surface 16a is formed on the push rod 16, when the abutting block 14 moves, the abutting block 14 can abut against the driving surface 16a, so that the push rod 16 rotates and tightly presses the limiting block 15 on the inner sleeve rod 1;

[0037] When the handle 9 rotates, the special-shaped portion 10 can extrude the connecting portion 5 to make the two connecting portions 5 close to each other, when the two connecting portions 5 close to each other, the sliding washer 12 can be extruded to compress the spring, after the two sliding washers 12 move, the two sliding washers 12 close to each other, the driving rod 13 can push the abutting block 14 to move along the extension direction of the rotating groove 18a, after the abutting block 14 moves, the abutting block 14 abuts against the driving surface 16a to drive the push rod 16 to rotate, after the push rod 16 rotates, the push rod 16 can tightly press the limiting block 15 on the inner sleeve rod 1 to realize secondary limiting, and the limiting effect is better.

[0038] In order to expand the sliding space of the sliding washer 12, the two opposite side wall portions of the connecting portion 5 are concave to form accommodating grooves 5b, and the sliding washer 12 is movably arranged in the accommodating grooves 5b.

[0039] The above description is only some preferred embodiments of the present disclosure and the explanation of the applied technical principles. Those skilled in the art should understand that the application range involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above inventive concept. For example, the above features are replaced with the technical features disclosed in the embodiments of the present disclosure (but not limited to) having similar functions to form technical solutions.

Claims

1. A three-sided limit structure for a telescopic pole, comprising: The inner sleeve rod (1) and the outer sleeve rod (2) sleeved outside the inner sleeve rod (1), characterized in that the outer sleeve rod (2) is provided with a fixed sleeve (3), the inner sleeve rod (1) is sleeved with a limiting sleeve ring (4), the limiting sleeve ring (4) is open and fixedly connected with the fixed sleeve (3), both ends of the limiting sleeve ring (4) form a connecting part (5), the connecting part (5) forms a through hole (5a), the connecting rod (6) is slidably arranged in the through hole (5a), one end of the connecting rod (6) is fixedly provided with a blocking piece (7), the other end is fixedly provided with a rotating shaft (8), the rotating shaft (8) is rotatably provided with a handle (9), the handle (9) forms an eccentric-shaped special-shaped part (10) along the axis of the rotating shaft (8), the connecting rod (6) is sleeved with an elastic member (11), both ends of the elastic member (11) are fixedly provided with a sliding gasket (12), the sliding gasket (12) is hingedly connected with a driving rod (13), the end of the driving rod (13) away from the sliding gasket (12) is hingedly connected with a resisting block (14), the fixed sleeve (3) forms a limiting groove (3a), the limiting block (15) is movably arranged in the limiting groove (3a), the outer sleeve rod (2) forms an insertion slot (2a) for the limiting block (15), the fixed sleeve (3) is rotatably provided with a push rod (16), the push rod (16) forms a driving surface (16a), the resisting block (14) can abut against the driving surface (16a) when moving, so that the push rod (16) presses the limiting block (15) on the inner sleeve rod (1).

2. The triangular limiting structure for the telescopic rod according to claim 1, characterized in that: the fixed sleeve (3) forms a mounting part (18), the mounting part (18) is provided with a rotating groove (18a) extending along the length direction of the outer sleeve rod (2), the push rod (16) is rotatably arranged in the rotating groove (18a), and the resisting block (14) is movably arranged in the rotating groove (18a).

3. The triangular limiting structure for the telescopic rod according to claim 2, characterized in that: the side wall part of the mounting part (18) is concave and penetrates into the rotating groove (18a) to form a movable groove (18b), and the driving rod (13) is movably arranged in the movable groove (18b).

4. The triangular limiting structure for the telescopic rod according to claim 1, characterized in that: the push rod (16) is fixedly connected with the limiting block (15).

5. The triangular limiting structure for the telescopic rod according to claim 1, characterized in that: the sliding gasket (12) is slidably arranged on the connecting rod (6).

6. The triangular limiting structure for the telescopic rod according to claim 1, characterized in that: the elastic member (11) is a spring.

7. The triangular limiting structure for the telescopic rod according to claim 1, characterized in that: The connecting part (5) has two opposite side wall portions recessed to form accommodating grooves (5b), and the sliding gasket (12) is arranged in the accommodating grooves (5b).

8. The three-edge limiting structure for telescopic rod according to claim 1, characterized in that: The fixed sleeve (3) is open, and both ends of the fixed sleeve (3) form fixed parts (19), and the two fixed parts (19) are fixedly connected through bolts.

Images