Telescopic rod limiting structure

Abstract

The utility model discloses a telescopic rod limiting structure, and belongs to the technical field of telescopic rods. A telescopic rod limiting structure comprises an outer sleeve and an inner sleeve which are connected in an inserted mode, a limiting groove penetrating to an inner cavity of the outer sleeve is formed in the side wall of the outer sleeve, a limiting sleeve piece is arranged at the position, corresponding to the limiting groove, of the outer sleeve in a sleeving mode, and a limiting cavity corresponding to the limiting groove is formed in the limiting sleeve piece; a plurality of limiting elastic blocks are arranged in the limiting cavity, and the limiting elastic blocks and the limiting sleeve piece are integrally formed; a pressing piece is rotationally arranged on the limiting sleeve piece, an abutting portion is formed on the pressing piece, in the rotating process of the pressing piece, the abutting portion can extrude the limiting elastic block so that the limiting elastic block can deform, and the limiting elastic block abuts against the inner sleeve pipe after deforming. The telescopic rod limiting structure has the beneficial effect that the integrally-formed telescopic rod limiting structure is provided.

Description

Technical Field

[0001] This application relates to the field of telescopic pole technology, and more specifically, to a telescopic pole limiting structure. Background Technology

[0002] A telescopic pole is a device that can be extended or retracted at will. It is usually made of metal or plastic and has the feature of adjustable length. Telescopic poles can be used in various fields such as home, garden picking, and fishing. Limiting and fixing telescopic poles is one of the important issues that need to be solved in the design process of telescopic poles, and it is also an important factor that determines the quality of the product.

[0003] The structure of the product can refer to a telescopic rod with patent number (CN201520025531.6), including: a first rod, a second rod, and a locking device, wherein the first rod is slidably inserted into the second rod, and a locking device is installed at one end of the second rod. The locking device is characterized in that: the locking device includes: a button, a bracket, and a base; wherein the base protrudes outward from the inside through an mounting groove formed on one end of the second rod; the bracket and the protruding part of the base are tightly engaged and fixed; the button covers the entire upper end of the bracket and moves up and down on the upper end of the bracket as a whole, and is connected to the bracket through a button hook.

[0004] In the above structure, the first and second rods are locked by the interlocking of buttons, brackets, and bases. The structure is relatively complicated, which increases the cost of manufacturing the telescopic rod and makes it more prone to damage during use due to the large number of parts.

[0005] Therefore, it is necessary to design an integrated telescopic pole limiting structure to reduce the cost of telescopic pole production and processing and improve the service life of the telescopic pole. Utility Model Content

[0006] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0007] To address the technical problems mentioned in the background section, some embodiments of this application provide a telescopic rod limiting structure, including an outer sleeve and an inner sleeve that are interlocked.

[0008] A limiting groove is formed on the side wall of the outer tube, extending into the inner cavity of the outer tube. A limiting kit is fitted on the outer tube at a position corresponding to the limiting groove. A limiting cavity is formed on the limiting kit, corresponding to the limiting groove. Several limiting spring blocks are provided in the limiting cavity, and the limiting spring blocks and the limiting kit are integrally formed.

[0009] The limiting assembly is rotatably equipped with a clamping element, and the clamping element has an abutting part. During the rotation of the clamping element, the abutting part can squeeze the limiting spring block, so that the limiting spring block is deformed and then abuts against the inner sleeve.

[0010] During use, the limiting spring block is installed. By rotating the clamping component, the contact part squeezes the limiting spring block, and the limiting spring block deforms and comes into contact with the outer tube, thereby achieving the limiting function. Since the limiting kit and the limiting spring block are integrally molded, the limiting kit can be simply fitted onto the corresponding position on the outer tube, and the clamping component can be installed on the outer tube to complete the installation of the limiting structure. The installation is relatively simple, reducing the production cost of the telescopic rod. Moreover, the integral molding design results in fewer parts for the telescopic rod, making it less prone to damage and extending its service life.

[0011] Furthermore, the limiting cavity extends to both ends of the limiting kit.

[0012] Furthermore, a connecting part is formed on the limiting spring block, and the connecting part is fixedly connected to the inner wall of the limiting cavity.

[0013] Furthermore, a rotating portion is formed on the clamping member, which extends along the circumferential direction of the outer sleeve, and the end of the rotating portion away from the contact portion extends away from the outer sleeve to form a protrusion.

[0014] Furthermore, the surface portion of the protrusion forms several anti-slip sections.

[0015] Furthermore, the sidewall portion of the outer tube is recessed inward along the diameter direction of the outer tube to form several recessed parts, and the cross-section of the recessed parts is arc-shaped so that the cross-section of the outer tube is petal-shaped.

[0016] The outer wall of the inner sleeve fits against the inner wall of the outer sleeve;

[0017] The inner wall of the limiting kit fits against the outer wall of the outer sleeve.

[0018] Furthermore, the inner wall portion of the limiting kit protrudes to form an anti-rotation part, the position of which corresponds to the position of the recessed part.

[0019] Furthermore, the inner wall portion of either end of the limiting kit protrudes to form a sleeve portion whose cross-section corresponds to the cross-section of the outer sleeve portion.

[0020] Furthermore, the limiting kit has hinges formed near both ends, and the position of the hinges along the circumferential direction of the outer sleeve corresponds to the limiting spring block;

[0021] The clamping element is installed on the hinge.

[0022] The beneficial effects of this application are as follows:

[0023] 1. The limiting kit and the limiting spring block are integrally molded, reducing production costs and increasing service life;

[0024] Second, the limiting cavity extends to both ends of the limiting kit, increasing the deformation capability of the limiting kit and making it easier to fit the limiting kit onto the outer tube;

[0025] Third, the connection part can increase the deformation capability of the limiting spring block;

[0026] Fourth, the protrusion makes it easier for a person to pry up the rotating part by hand to rotate the clamping part;

[0027] 5. The anti-rotation part can limit the limiting component in the circumferential direction;

[0028] VI. The sleeve part can limit the limiting kit in the axial direction, so that the limiting kit fits perfectly on the end of the outer tube and wraps around the end edge of the outer tube, preventing the edge of the outer tube from scratching people's hands. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0030] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0031] In the attached diagram:

[0032] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0033] Figure 2 This is a structural diagram of a part of the embodiment, mainly showing the structure of the outer tube;

[0034] Figure 3 yes Figure 1 Enlarged view of part A;

[0035] Figure 4 This is a partial structural diagram of an embodiment, mainly showing the structure of the clamping component;

[0036] Figure 5 This is a partial structural diagram of an embodiment, mainly showing the limiting structure;

[0037] Figure 6 This is a partial structural diagram of an embodiment, mainly showing the structure of the limiting spring block;

[0038] Figure 7This is a partial structural schematic diagram of an embodiment, mainly showing the structure of the anti-rotation part and the sleeve part.

[0039] Figure label:

[0040] 1. Outer sleeve; 101. Inner sleeve; 102. Recess;

[0041] 2. Limiting structure; 201. Limiting kit; 202. Insertion end; 203. Limiting groove; 204. Limiting cavity; 205. Limiting spring block; 206. Connecting part; 207. Hinge part; 208. First sleeve; 209. Second sleeve; 210. First hinge part; 211. Second hinge part; 212. Hinge hole; 213. Anti-rotation part; 214. Sleeve part;

[0042] 3. Clamping part; 301. Contact part; 302. Rotating part; 303. Protrusion part; 304. Anti-slip part. Detailed Implementation

[0043] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0044] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0045] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0046] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0047] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] A telescopic rod includes at least two outer sleeves 1 and inner sleeves 101 that are inserted end to end. The side wall portion of the outer sleeve 1 is recessed inward along the diameter direction of the outer sleeve 1 to form a plurality of recesses 102. The cross-section of the recesses 102 is arc-shaped so that the cross-section of the outer sleeve 1 is petal-shaped. The cross-sectional shape of the inner sleeve 101 is consistent with the cross-sectional shape of the outer sleeve 1, and the outer wall of the inner sleeve 101 is fitted to the inner wall of the outer sleeve 1.

[0049] The petal-shaped cross-sections of the outer sleeve 1 and the inner sleeve 101 not only enhance the aesthetics of the telescopic rod but also increase its stability. This allows the outer sleeve 1 and the inner sleeve 101 to be limited in the circumferential direction, preventing them from rotating relative to each other during use.

[0050] The telescopic rod is also provided with a limiting structure 2 so that the extension and retraction of the outer sleeve 1 and the inner sleeve 101 in the axial direction can be limited, thereby fixing the extension and retraction length of the telescopic rod;

[0051] Specifically, the limiting structure 2 includes a limiting kit 201 and a clamping member 3 rotatably mounted on the limiting kit 201; more specifically, one end of the outer sleeve 1 that can be inserted into the inner sleeve 101 is designated as the insertion end 202, and a limiting groove 203 is formed on the side wall of the outer sleeve 1 near the insertion end 202, extending into the inner cavity of the outer sleeve 1; the limiting kit 201 is fitted onto the outer sleeve 1 at a position corresponding to the limiting groove 203, and a limiting cavity 204 is formed on the limiting kit 201 corresponding to the position of the limiting groove 203, with the inner wall portion of the limiting cavity 204 extending axially to both ends of the limiting kit 201; three limiting spring blocks 205 are provided in the limiting cavity 204, and a connecting portion 206 is formed on the limiting spring block 205, which is fixedly connected to the inner wall of the limiting cavity 204; the limiting kit 201, the limiting spring blocks 205, and the connecting portion 206 are integrally formed.

[0052] The limiting kit 201 has a hinge portion 207 formed near both ends. The position of the hinge portion 207 along the circumferential direction of the outer sleeve 1 corresponds to the limiting spring block 205. A clamping member 3 is rotatably mounted on the hinge portion 207.

[0053] Specifically, since the limiting cavity 204 extends to both ends of the limiting kit 201, the two ends of the limiting kit 201 separated by the limiting cavity 204 are designated as the first sleeve 208 and the second sleeve 209. The first sleeve 208 has two first hinge portions 210 near its ends, and the second sleeve 209 has two second hinge portions 211 near its ends. The two first hinge portions 210 are positioned between the two second hinge portions 211. Hinge holes 212 corresponding to the cross-sectional positions are formed on the first hinge portions 210 and the second hinge portions 211. The clamping member 3 is installed between the two second hinge portions 211, and both ends of the clamping member 3 are rotatably connected to the first hinge portions 210 and the second hinge portions 211 at the two ends, respectively.

[0054] The limiting cavity 204 extends through both ends of the limiting kit 201, which can increase the deformation capacity of the limiting kit 201 and make it easier to fit the limiting kit 201 onto the outer tube 1. After the limiting kit 201 is fitted onto the outer tube 1, the first set of pieces 208 and the second set of pieces 209 can be connected by the installation of the clamping member 3, thereby making the limiting kit 201 tightly attached to the outer wall of the outer tube 1 and playing a fixing role.

[0055] The clamping member 3 has an abutting part 301 and a rotating part 302. The abutting part 301 can abut against the limiting spring block 205, so that the connecting part 206 on the limiting spring block 205 is deformed. After the connecting part 206 is deformed, the limiting spring block 205 abuts against the inner sleeve 101, thereby achieving the limiting.

[0056] Specifically, the contact part 301 is formed on the clamping member 3 near the rotation axis. The outer wall of the contact part 301 is arc-shaped along the rotation axis so that when the clamping member 3 rotates, the side wall of the contact part 301 can abut against the top surface of the limiting spring block 205, thereby squeezing the limiting spring block 205, causing the connecting part 206 to deform, and the limiting spring block 205 can abut against the inner sleeve 101 to achieve limiting.

[0057] The rotating part 302 extends along the circumferential direction of the outer sleeve 1 and has the same shape as the outer sleeve 1. The end of the rotating part 302 away from the contact part 301 extends away from the outer sleeve 1 to form a protrusion 303, so as to facilitate the rotation of the rotating part 302. The surface portion of the protrusion 303 protrudes to form two anti-slip parts 304.

[0058] When the rotating clamping member 3 is rotated until the contact part 301 contacts the limiting spring block 205 to achieve the limiting, the rotating part 302 fits against the surface of the outer tube 1. When it is necessary to relax the contact, rotating the clamping member 3 can drive the contact part 301 to disengage from the limiting spring block 205, the connecting part 206 automatically restores its deformation, and the limiting spring block 205 returns to its initial position.

[0059] The inner wall of the limiting kit 201 protrudes to form an anti-rotation part 213 at the position opposite to the limiting cavity 204. The anti-rotation part 213 fits exactly in the recess 102 on the surface of the outer tube 1, which can increase the contact between the limiting kit 201 and the outer tube 1 and prevent the limiting kit 201 from being misaligned with the outer tube 1 in the circumferential direction.

[0060] The inner wall portion of the limiting kit 201 near the insertion end 202 protrudes to form a sleeve portion 214 whose cross-section corresponds to a portion of the cross-section of the outer sleeve 1. This sleeve portion 214 can limit the limiting kit 201. When the limiting kit 201 is inserted onto the outer sleeve 1 until the sleeve portion 214 abuts against the cross-section of the outer sleeve 1, it indicates that the limiting kit 201 has been installed in the appropriate position. At this time, the position of the limiting cavity 204 is consistent with the position of the limiting groove 203. Furthermore, the sleeve portion 214 can wrap around the edge of the outer sleeve 1 to prevent the edge of the outer sleeve 1 from scratching the hand.

[0061] Using this type of limiting structure 2 to limit the telescopic rod is simple to install and saves costs in the telescopic rod manufacturing process, as it only contains two parts: the limiting kit 201 and the clamping part 3. All structures on the limiting kit 201 are integrally molded, making them less prone to damage and increasing the service life of the telescopic rod.

[0062] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A telescopic rod limiting structure, comprising an outer sleeve and an inner sleeve that are interlocked with each other. Its features are: A limiting groove is formed on the side wall of the outer tube, extending into the inner cavity of the outer tube. A limiting sleeve is fitted on the outer tube at a position corresponding to the limiting groove. A limiting cavity is formed on the limiting sleeve corresponding to the limiting groove. A plurality of limiting spring blocks are provided in the limiting cavity. The limiting spring blocks are integrally formed with the limiting sleeve. A clamping member is rotatably mounted on the limiting assembly, and an abutting part is formed on the clamping member. During the rotation of the clamping member, the abutting part can squeeze the limiting spring block to deform the limiting spring block. After the limiting spring block is deformed, it abuts against the inner sleeve.

2. The telescopic rod limiting structure according to claim 1, characterized in that: The limiting cavity extends through both ends of the limiting kit.

3. The telescopic rod limiting structure according to claim 2, characterized in that: A connecting portion is formed on the limiting spring block, and the connecting portion is fixedly connected to the inner wall of the limiting cavity.

4. The telescopic rod limiting structure according to claim 3, characterized in that: The clamping member has a rotating portion that extends along the circumferential direction of the outer sleeve. One end of the rotating portion away from the contact portion extends away from the outer sleeve to form a protrusion.

5. The telescopic rod limiting structure according to claim 4, characterized in that: The surface portion of the protrusion forms several anti-slip parts.

6. The telescopic rod limiting structure according to claim 1, characterized in that: The sidewall portion of the outer tube is recessed inward along the diameter direction of the outer tube to form several recessed portions, and the cross-section of the recessed portions is arc-shaped so that the cross-section of the outer tube is petal-shaped. The outer wall of the inner sleeve is fitted to the inner wall of the outer sleeve; The inner wall of the limiting kit fits against the outer wall of the outer sleeve.

7. The telescopic rod limiting structure according to claim 6, characterized in that: The inner wall portion of the limiting kit protrudes to form an anti-rotation part, the position of which corresponds to the position of the recessed part.

8. The telescopic rod limiting structure according to claim 1, characterized in that: The inner wall portion of any one end of the limiting kit protrudes, forming a sleeve portion whose cross-section corresponds to the cross-section of the outer sleeve portion.

9. The telescopic rod limiting structure according to claim 1, characterized in that: The limiting kit has hinged portions near both ends, and the positions of the hinged portions along the circumferential direction of the outer sleeve correspond to the limiting spring blocks; The clamping element is mounted on the hinge.

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