Telescopic rod

Abstract

The utility model relates to the field of telescopic mechanisms, in particular to a telescopic rod, which comprises a plurality of telescopic pipes which are sequentially sleeved together with the pipe diameters gradually reduced, and further comprises anti-slip sheets and anti-slip rings, the number of the anti-slip sheets and the anti-slip rings is one less than that of the telescopic pipes, one end of the thick telescopic pipe is sleeved on the outer layer of the anti-slip ring, and the thick telescopic pipe and the anti-slip rings are connected in a buckling mode. The non-slip sheet is sleeved at one end of the thin telescopic pipe and is in buckled connection with the thin telescopic pipe; at least two anti-slip ring inner protrusions formed through stamping are arranged on the inner side wall of the anti-slip ring, the anti-slip ring inner protrusions are arranged in a structure acting towards the circle center and reacting towards the circle center, and the anti-slip ring inner protrusions play a role in facilitating installation of the telescopic pipes and the anti-slip ring and preventing the telescopic pipes from shaking after assembly. Installation is convenient, stability is high, and shaking is avoided.

Description

Technical Field

[0001] This utility model relates to the field of telescopic mechanisms, and in particular to a telescopic rod. Background Technology

[0002] Telescopic mechanisms are common, found in everything from heavy machinery and trucks to everyday items, their biggest advantage being space saving. Telescopic poles are a type of telescopic mechanism, primarily referring to small appliances, especially everyday items such as umbrellas, fishing rods, and selfie sticks. Existing telescopic poles present the following problems during assembly: when the outer diameter of the telescopic tube is smaller than the inner diameter of the anti-slip ring, there is a wobbling sensation between the tubes after installation, resulting in a poor user experience; when the outer diameter of the telescopic tube is the same as the inner diameter of the anti-slip ring, although the wobbling problem is solved, installation becomes difficult, and the pushing and pulling force is hard to control. In this case, reworking and oxidizing the telescopic tube is often used. After oxidation, the outer diameter of the telescopic tube is reduced by about 0.05mm, which again results in play and wobbling. Ensuring both easy installation and preventing wobbling after assembly is a very challenging task.

[0003] Therefore, it is necessary to provide a telescopic rod to solve the above-mentioned technical problems. Utility Model Content

[0004] To overcome the problems encountered during the assembly of existing telescopic rods: 1. When the outer diameter of the telescopic tube is smaller than the inner diameter of the anti-slip ring, a wobbling sensation occurs between the telescopic tubes after installation, resulting in a poor user experience; 2. When the outer diameter of the telescopic tube is the same as the inner diameter of the anti-slip ring, installation is difficult, and the pushing and pulling force is hard to control. Using reworked oxidized telescopic tubes also introduces play and wobbling. In short, ensuring both easy installation and preventing wobbling after assembly is a significant challenge. This utility model provides a telescopic rod.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solutions:

[0006] A telescopic rod includes several telescopic tubes with gradually decreasing diameters, sequentially nested together. It also includes one less anti-slip plate and one anti-slip ring than the number of telescopic tubes. One end of the thicker telescopic tube is fitted onto the outer layer of the anti-slip ring, and the two are snapped together. The anti-slip plate is fitted onto one end of the thinner telescopic tube, and the two are snapped together. At least two stamped anti-slip ring protrusions are provided on the inner wall of the anti-slip ring. These protrusions are arranged in a center-acting and reaction-oriented structure, facilitating the installation of the telescopic tubes and the anti-slip ring, and preventing any wobbling between the telescopic tubes after assembly.

[0007] As a further embodiment of this utility model: the anti-slip plate is semi-circular tubular in shape, including a left anti-slip plate and a right anti-slip plate. The outer surfaces of the left and right anti-slip plates are respectively provided with a left outer arc-shaped protrusion and a right outer arc-shaped protrusion. The left outer arc-shaped protrusion and the right outer arc-shaped protrusion serve to prevent the wobbling between the telescopic tubes individually, and at the same time cooperate with the protrusion inside the anti-slip ring to prevent the wobbling between the telescopic tubes in a straight line.

[0008] As a further embodiment of this utility model: a blocking part is provided at one end of the anti-slip sheet to prevent the telescopic tube from shrinking excessively.

[0009] As a further embodiment of this utility model: the telescopic tube is provided with at least one telescopic tube limiting groove formed by axial stamping to prevent left and right swaying and to limit movement; at the same time, the anti-slip ring is provided with a second limiting groove that corresponds to the position and size of the telescopic tube limiting groove.

[0010] As a further embodiment of this utility model: the end of the anti-slip ring is provided with a limiting part to prevent excessive force when assembling the anti-slip ring with the telescopic tube.

[0011] As a further embodiment of this utility model: an outer protrusion is provided on the outer surface of the anti-slip ring, and a protrusion guide slope is provided on the outer protrusion of the anti-slip ring to facilitate the assembly of the anti-slip ring and the telescopic tube.

[0012] As a further embodiment of this utility model: the inner wall of the anti-slip sheet is provided with an inner protrusion, and the inner protrusion is provided with an inner protrusion guide slope to facilitate the assembly of the anti-slip sheet and the telescopic tube.

[0013] As a further embodiment of this utility model: each of the anti-slip rings has four protrusions inside, and the two sets of centrally symmetrical structures are arranged, which is conducive to more stable assembly of the telescopic tube and the anti-slip ring and prevents shaking.

[0014] As a further embodiment of this utility model: each telescopic tube has two telescopic tube limiting grooves, and the anti-slip ring is provided with two second limiting grooves that correspond to the position and size of the telescopic tube limiting grooves.

[0015] The beneficial effects of the telescopic rod involved in this utility model are as follows:

[0016] Because anti-slip plates and anti-slip rings are used to snap together at both ends of the telescopic tube, they provide a two-point straight-line fixation. The anti-slip rings have at least two inward-facing protrusions, arranged in a center-acting and reaction-oriented structure. These protrusions facilitate the installation of the telescopic tubes and anti-slip rings while preventing any wobbling between the telescopic tubes after assembly. Installation is convenient, stable, and without any wobbling. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the telescopic rod structure of this utility model;

[0018] Figure 2 This is the assembly drawing of the second anti-slip sheet of this utility model;

[0019] Figure 3 This is an assembly drawing of the anti-slip ring for this utility model;

[0020] Figure 4 This is an exploded view of the telescopic rod of this utility model;

[0021] Figure 5 This is a three-dimensional view of the structure of the second anti-slip sheet of this utility model;

[0022] Figure 6 This is a three-dimensional view of the structure of the second anti-slip ring of this utility model;

[0023] Figure 7 This is a left view of the second anti-slip ring of this utility model;

[0024] Figure 8 This is the main view of the second anti-slip ring of this utility model;

[0025] Figure 9 This is a three-dimensional view of the second telescopic tube structure of this utility model.

[0026] In the diagram: 100 - Telescopic tube, 110 - First telescopic tube, 120 - Second telescopic tube, 121 - Second telescopic tube body, 122 - Second telescopic tube anti-slip ring mounting hole, 123 - Second telescopic tube anti-slip plate mounting hole, 124 - Second telescopic tube limiting groove, 130 - Third telescopic tube, 200 - Anti-slip plate, 210 - First anti-slip plate, 220 - Second anti-slip plate, 221 - Second anti-slip plate left anti-slip plate, 2211 - Second anti-slip plate left blocking part, 2212 - Second anti-slip plate left inner protrusion, 2213 - Second anti-slip plate left outer arc-shaped protrusion 222-Right anti-slip piece of the second anti-slip piece, 2221-Right blocking part of the second anti-slip piece, 2223-Right outer arc-shaped protrusion of the second anti-slip piece, 300-Anti-slip ring, 310-First anti-slip ring, 320-Second anti-slip ring, 321-Main body of the second anti-slip ring, 322-Limiting part of the second anti-slip ring, 323-Groove of the second anti-slip ring, 324-First limiting groove of the second anti-slip ring, 325-Second limiting groove of the second anti-slip ring, 326-Inner protrusion of the second anti-slip ring, 327-Outer protrusion of the second anti-slip ring, 3270-Guide slope of the protrusion of the second anti-slip ring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a telescopic rod, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit its scope.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] A telescopic rod includes several telescopic tubes 100 with gradually decreasing diameters that are sequentially connected together. It also includes an anti-slip plate 200 and an anti-slip ring 300, which are one less than the number of telescopic tubes 100. One end of the thicker telescopic tube 100 is fitted onto the outer layer of the anti-slip ring 300, and the two are snapped together. The anti-slip plate 200 is fitted onto one end of the thinner telescopic tube 100, and the two are snapped together.

[0031] Example

[0032] The telescopic tube 100 is exemplified by having three sections.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8As shown, the telescopic tube 100 includes a third telescopic tube 130, a second telescopic tube 120, and a first telescopic tube 110, which are sequentially connected and have gradually decreasing diameters; the anti-slip plate 200 includes a second anti-slip plate 220 with a large radius and a first anti-slip plate 210 with a small radius. The second anti-slip plate 220 is sleeved and snapped onto the outer layer of the end of the second telescopic tube 120 that is inserted into the third telescopic tube 130, and the first anti-slip plate 210 is sleeved and snapped onto the outer layer of the end of the first telescopic tube 110 that is inserted into the second telescopic tube 120; the anti-slip ring 300 includes a second anti-slip ring 320 with a large radius and a first anti-slip ring 310 with a small radius. The second anti-slip ring 320 is snapped onto the end of the third telescopic tube 130 near the second telescopic tube 120, and the first anti-slip ring 310 is snapped onto the outer layer of the end of the second telescopic tube 110 that is inserted into the second telescopic tube 120. 20 is located near one end of the first telescopic tube 110; each of the anti-slip rings 300 has at least two stamped anti-slip ring inner protrusions on its inner sidewall. The structure of the second anti-slip ring 320 is similar to that of the first anti-slip ring 310. Taking the second anti-slip ring 320 as an example, the second anti-slip ring 320 includes a second anti-slip ring body 321, with at least two second anti-slip ring grooves 323 stamped on its outer surface, and the same number of second anti-slip ring inner protrusions 326 as the second anti-slip ring grooves 323 are provided on its inner sidewall. The second anti-slip ring inner protrusions 326 are arranged in a center-to-center action and reaction structure. When the number of the second anti-slip ring inner protrusions 326 is even, they are arranged symmetrically in pairs. When the number is odd, the second anti-slip ring inner protrusions 326 are circumferentially graded to avoid being concentrated together or on one side, which would result in uneven force distribution. The inner protrusion 326 of the second anti-slip ring facilitates the installation of the telescopic tube 100 and the anti-slip ring 300, and also prevents the telescopic tubes 100 from shaking after assembly.

[0034] Because the anti-slip plate 200 and anti-slip ring 300 are sleeved and snapped onto both ends of the telescopic tube 100, they provide a two-point straight-line fixation. The anti-slip ring 300 has at least two inwardly protruding sections, arranged in a center-to-center action and reaction structure. These protrusions facilitate the installation of the telescopic tube 100 and the anti-slip ring 300, and prevent any wobbling between the telescopic tubes 100 after assembly. This results in convenient installation, strong stability, and no wobbling.

[0035] like Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the structure of the second anti-slip piece 220 is similar to that of the first anti-slip piece 210. The anti-slip piece 200 can be a cylindrical structure or a semi-cylindrical structure. When it is a semi-cylindrical structure, taking the second anti-slip piece 220 as an example, it includes a second left anti-slip piece 221 and a second right anti-slip piece 222. The outer surfaces of the second left anti-slip piece 221 and the second right anti-slip piece 222 are respectively provided with a second left outer arc-shaped protrusion 2213 and a second right outer arc-shaped protrusion 2223. The second left outer arc-shaped protrusion 2213 and the second right outer arc-shaped protrusion 2223 can individually prevent the swaying between the telescopic tubes 100, and can also cooperate with the inner protrusion 326 of the second anti-slip ring to prevent the swaying between the telescopic tubes 100 at two points in a straight line. Although the left outer arc protrusion 2213 and the right outer arc protrusion 2223 of the second anti-slip plate act radially outward, while the inner protrusion 326 of the second anti-slip ring acts in the direction of the center, with regard to the adjacent telescopic tube 100, one end is provided with the anti-slip plate 200 and the other end is provided with the anti-slip ring 300, which can play a two-point fixed role.

[0036] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, one end of the anti-slip plate 200 is provided with a blocking part. Taking the second anti-slip plate 220 as an example, the left anti-slip plate 221 and the right anti-slip plate 222 of the second anti-slip plate are respectively provided with a left blocking part 2211 and a right blocking part 2221 near the end of the third telescopic tube 130, which serves to prevent the telescopic tube 100 from shrinking excessively.

[0037] like Figure 9As shown, the telescopic tube 100 is provided with an axially stamped telescopic tube limiting groove that prevents left and right swaying and provides a limiting function. The third telescopic tube 130, the second telescopic tube 120, and the first telescopic tube 110 have similar structures. Taking the second telescopic tube 120 as an example, the second telescopic tube 120 includes a second telescopic tube body 121, and is provided with a second telescopic tube limiting groove 124 formed by axial stamping to prevent left and right swaying and provide a limiting function. Two centrally symmetrical grooves are more effective. The anti-slip ring 300 is provided with a limiting groove. Taking the second anti-slip ring 320 as an example, the second anti-slip ring 320 is provided with a second anti-slip ring second limiting groove 325 that corresponds to the position and size of the second telescopic tube limiting groove 124. The second telescopic tube 120 is provided with two second telescopic tube anti-slip ring mounting holes 122 near the smaller diameter end (i.e., near the first telescopic tube 110) for locking the first anti-slip ring 310. The second telescopic tube 120 has two second telescopic tube anti-slip plate mounting holes 123 near the larger diameter end (i.e., near the third telescopic tube 130) that engage with the second anti-slip plate 220. The left anti-slip plate 221 and the right anti-slip plate 222 are respectively provided with a left inner protrusion 2212 and a right inner protrusion (not shown in the figure) for engaging with the second telescopic tube anti-slip plate mounting holes 123.

[0038] like Figure 6 As shown, the anti-slip ring 300 has a limiting part at its end. Taking the second anti-slip ring 320 as an example, the end of the second anti-slip ring 320 is provided with a second anti-slip ring limiting part 322, which is used to prevent excessive force when assembling the anti-slip ring 300 with the telescopic tube 100. The second anti-slip ring limiting part 322 is provided with a second anti-slip ring first limiting groove 324 that is equal in number, corresponding in position, and matches in size with the second limiting groove 325 of the second anti-slip ring.

[0039] like Figure 6 As shown, the outer surface of the anti-slip ring 300 is provided with an anti-slip ring outer protrusion. Taking the second anti-slip ring 320 as an example, the outer surface of the second anti-slip ring 320 is provided with a second anti-slip ring outer protrusion 327, and the second anti-slip ring outer protrusion 327 is provided with a second anti-slip ring protrusion guide slope 3270, which is used to facilitate the assembly of the anti-slip ring 300 and the telescopic tube 100.

[0040] like Figure 5As shown, the inner wall of the anti-slip piece 200 is provided with an inner protrusion, and the inner protrusion is provided with an inner protrusion guide slope. Taking the second anti-slip piece 220 as an example, the inner walls of the left anti-slip piece 221 and the right anti-slip piece 222 are respectively provided with a second anti-slip piece left inner protrusion guide slope (not shown in the figure) and a second anti-slip piece right inner protrusion guide slope (not shown in the figure), which are used to facilitate the assembly of the anti-slip piece 200 with the telescopic tube 100.

[0041] like Figure 7 As shown, each of the anti-slip rings 300 has four protrusions inside. Taking the second anti-slip ring 320 as an example, the second anti-slip ring has four protrusions 326 inside. The two sets of centrally symmetrical structures are arranged, which helps to make the assembly of the telescopic tube 100 and the anti-slip ring 300 more stable and prevents shaking.

[0042] like Figure 9 As shown, each telescopic tube 100 is provided with two telescopic tube limiting grooves. Taking the second telescopic tube 120 as an example, there are two second telescopic tube limiting grooves 124, which are centrally symmetrically arranged. Simultaneously, the anti-slip ring 300 is provided with two limiting grooves corresponding to the position and size of the telescopic tube limiting grooves. Taking the second anti-slip ring 320 as an example, the second anti-slip ring 320 is provided with two second anti-slip ring second limiting grooves 325 corresponding to the position and size of the second telescopic tube limiting groove 124. This structural arrangement facilitates a more stable assembly of the telescopic tube 100 and the anti-slip ring 300, preventing shaking.

[0043] The above description of the utility model is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A telescopic rod comprising a plurality of telescopic tubes (100) of gradually decreasing diameters, which are successively connected together, characterized in that: It also includes one less anti-slip piece (200) and one less anti-slip ring (300) than the number of telescopic tubes (100). One end of the thicker telescopic tube (100) is fitted onto the outer layer of the anti-slip ring (300), and the two are snapped together. The anti-slip piece (200) is fitted onto one end of the thinner telescopic tube (100), and the two are snapped together. At least two stamped anti-slip ring protrusions are provided on the inner wall of the anti-slip ring (300). The anti-slip ring protrusions are arranged in a center-acting and reaction structure. The anti-slip ring protrusions facilitate the installation of the telescopic tubes (100) and the anti-slip ring (300) and prevent the telescopic tubes (100) from shaking after assembly.

2. A telescopic pole according to claim 1, characterised in that The anti-slip plate (200) is semi-circular and includes a left anti-slip plate and a right anti-slip plate. The outer surfaces of the left and right anti-slip plates are respectively provided with a left outer arc protrusion and a right outer arc protrusion. The left outer arc protrusion and the right outer arc protrusion serve to prevent the telescopic tubes (100) from shaking individually, and at the same time cooperate with the protrusion inside the anti-slip ring to prevent the telescopic tubes (100) from shaking in a straight line.

3. Telescopic pole according to claim 1 or 2, characterized in that The anti-slip plate (200) has a blocking part at one end, which serves to prevent the telescopic tube (100) from shrinking excessively.

4. A telescopic pole according to claim 3, characterised in that, The telescopic tube (100) is provided with at least one telescopic tube limiting groove formed by axial stamping to prevent left and right swaying and to limit movement. At the same time, the anti-slip ring (300) is provided with a second limiting groove that corresponds to the position and size of the telescopic tube limiting groove.

5. A telescopic pole according to claim 4, characterised in that, The anti-slip ring (300) is provided with a limiting part at its end to prevent excessive force when assembling the anti-slip ring (300) and the telescopic tube (100).

6. A telescopic pole according to claim 5, characterised in that, The outer surface of the anti-slip ring (300) is provided with an anti-slip ring outer protrusion, and the anti-slip ring outer protrusion is provided with a protrusion guide slope, which is used to facilitate the assembly of the anti-slip ring (300) and the telescopic tube (100).

7. Telescopic pole according to claim 5 or 6, characterized in that The anti-slip sheet (200) has an inner protrusion on its inner sidewall, and the inner protrusion has an inner protrusion guide slope, which is used to facilitate the assembly of the anti-slip sheet (200) and the telescopic tube (100).

8. A telescopic pole according to claim 7, characterised in that, Each of the anti-slip rings (300) has four protrusions inside, and the two sets of centrally symmetrical structures are arranged to facilitate a more stable assembly of the telescopic tube (100) and the anti-slip ring (300) and prevent shaking.

9. A telescopic pole according to claim 8, characterised in that, Each telescopic tube (100) has two telescopic tube limiting grooves, and the anti-slip ring (300) is provided with two second limiting grooves that correspond to the position and size of the telescopic tube limiting grooves.

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