Telescopic rod

Abstract

The utility model provides a telescopic rod which comprises a connecting part, a telescopic part, a limiting part and a locking assembly, a mounting cavity is formed in the connecting part, the telescopic rod is movably arranged in the mounting cavity, the connecting part is connected with the limiting part, the limiting part partially sleeves the outer side of the telescopic part, a movement groove inclining from the periphery to the center is formed in the limiting part, and the locking assembly is arranged in the movement groove. A limiting ball is arranged in the moving groove, the limiting ball can abut against the peripheral wall of the telescopic part to limit the telescopic part, and the outer side of the limiting part is sleeved with a locking assembly used for locking the limiting ball so that the telescopic part can be fixed in the mounting cavity. By arranging the limiting part, the limiting ball moves downwards in the moving groove of the limiting part, the position, located in the connecting part, of the telescopic part is fixed by tightly holding the telescopic part through the limiting ball, and finally the position of the limiting ball is locked through the locking assembly to tightly hold the telescopic part so as to position the length of the telescopic rod. The connection is not released due to mistaken touch, the connection is more stable, and looseness is avoided.

Description

Technical Field

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

[0002] Currently, telescopic poles are widely used in various products, commonly including selfie sticks, telescopic clotheslines, telescopic umbrella handles, fishing rods, mops, and telescopic electric fans. Telescopic poles are characterized by their extendable length, easy storage, and portability. They can be extended to the desired length when in use and retracted when not in use to save space. Therefore, telescopic poles are also frequently used in conjunction with electric shears or chainsaws for pruning high branches or harvesting fruit from high places.

[0003] Chinese utility model patent application number CN205287486U discloses a telescopic golf club, which includes a clubhead, a first telescopic club, a second telescopic club, ball bearing I, a handle, ball bearing II, and an adjustment post. The club fixes the positions of the first and second telescopic clubs after extension and retraction by having the ball bearings locked in the ball bearing limiting groove.

[0004] However, relying solely on the combination of ball bearings and limiting grooves, if excessive force is applied during use, it may be accidentally activated, causing a change in the position of the first and second telescopic rods. Over time, this can also lead to unstable engagement and loosening of the connection between the first and second telescopic rods. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The problem to be solved by this utility model is to provide a telescopic rod that uses a limiting ball to hold the telescopic part tightly, and then uses a locking component to lock the position of the limiting ball, so that the connection will not be released due to accidental contact and the connection will be more stable.

[0007] (II) Technical Solution

[0008] To solve the aforementioned technical problem, this utility model provides a telescopic rod, including a connecting part, a telescopic part, a limiting part, and a locking assembly. The connecting part has an installation cavity, and the telescopic rod is movably disposed within the installation cavity. The limiting part is connected to the connecting part, and the limiting part is partially sleeved on the outside of the telescopic part. The limiting part has a movement groove that slopes from the outer periphery to the center, and a limiting ball is disposed within the movement groove. The limiting ball can abut against the outer peripheral wall of the telescopic part to limit the telescopic part. The locking assembly is sleeved on the outside of the limiting part to lock the limiting ball so that the telescopic part is fixed within the installation cavity.

[0009] In this solution, by setting a limiting part, the limiting ball moves downward in the movement groove of the limiting part, and the limiting ball hugs the telescopic part to fix the position of the telescopic part in the connecting part. Finally, the locking component locks the position of the limiting ball to hug the telescopic part and thus fixes the length of the telescopic rod. This not only prevents the connection from being disengaged due to accidental contact, but also makes the connection more stable and prevents loosening.

[0010] The locking assembly includes a fixing member and an outer cover. The fixing member is sleeved on the outer side of the telescopic part and inserted into the limiting part. The fixing member abuts against the limiting ball. The outer cover is sleeved on the outer side of the fixing member and connected to the fixing member. A locking member is provided on the outer peripheral wall of the limiting part for locking the outer cover.

[0011] In this solution, the position of the limiting ball is fixed by setting a fixing component, and the position of the fixing component can be moved more easily by setting an outer cover, which can better open or lock the connection between the telescopic part and the connecting part.

[0012] The locking element is a sliding rod, and the outer cover is provided with a sliding groove. The sliding groove includes a vertical sliding groove and a horizontal sliding groove. The horizontal sliding groove is provided on one side of the upper end of the vertical sliding groove. The sliding rod can slide along the vertical sliding groove and the horizontal sliding groove. The horizontal sliding groove is used to lock the sliding rod.

[0013] In this solution, a sliding rod is set to slide along a vertical sliding groove. After sliding to the bottom, the outer cover is rotated to make the sliding rod slide into a horizontal sliding groove, so that the sliding rod will not slide downward. This fixes the position of the limiting rod, thereby fixing the position of the limiting part and locking the connection position between the telescopic part and the connecting part.

[0014] The portion of the fastener inserted into the limiting part is arranged in a cone shape with a diameter that gradually decreases towards the center and abuts against the limiting sphere.

[0015] In this design, a tapered fixing component is used to match the inclined motion groove, which helps to better move the limiting ball downward.

[0016] The fastener is provided with a boss.

[0017] A spring is connected to the upper end face of the boss, and the two ends of the spring abut against the outer cover and the boss, respectively.

[0018] In this design, by connecting the spring to the outer cover and the boss, the spring's restorative change after the outer cover is rotated can automatically drive the outer cover and the fixing parts to their original positions.

[0019] The outer cover has a through hole, the upper part of the fastener protrudes through the through hole, and a gasket is fitted on the fastener, the gasket connecting the outer cover and the fastener.

[0020] In this design, the fasteners can be better connected to the outer cover by using shims.

[0021] The outer peripheral wall of the outer cover is provided with connecting ears.

[0022] In this design, the addition of connecting ears makes it easier for users to rotate the outer cover.

[0023] (III) Beneficial Effects

[0024] The telescopic rod provided by this utility model has the following beneficial effects:

[0025] (1) By setting a limiting part, the limiting ball moves downward in the movement groove of the limiting part, and the limiting ball hugs the telescopic part to fix the position of the telescopic part in the connecting part. Finally, the locking component locks the position of the limiting ball to hug the telescopic part and thus positions the length of the telescopic rod. Not only will the connection not be disconnected due to accidental contact, but the connection will also be more stable and will not loosen.

[0026] (2) By setting a fixing part, the position of the limiting ball is fixed, and by setting an outer cover, the position of the fixing part can be moved more easily, and the connection between the telescopic part and the connecting part can be opened or locked better. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a structural schematic diagram of the locked state of a telescopic rod according to this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of a telescopic rod in its open state according to this utility model;

[0030] Figure 3 This is an exploded structural diagram of a telescopic rod according to this utility model;

[0031] Figure 4 This is a schematic diagram of the limiting part of a telescopic rod according to this utility model;

[0032] Figure 5 This is a cross-sectional view of the locked state of a telescopic rod according to this utility model.

[0033] Figure 6 This is a cross-sectional view of the fractured structure of a telescopic rod in the open state according to this utility model.

[0034] The component names corresponding to the various reference numerals in the figure are as follows: 1. Connecting part; 11. Mounting cavity; 2. Telescopic part; 3. Limiting part; 31. Moving groove; 4. Locking assembly; 41. Fixing member; 411. Boss; 42. Outer cover; 421. Through hole; 43. Locking member; 431. Sliding rod; 44. Sliding groove; 441. Vertical sliding groove; 442. Horizontal sliding groove; 45. Spring; 5. Limiting ball; 6. Washer; 7. Connecting ear. Detailed Implementation

[0035] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0036] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0038] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0039] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0040] like Figure 1 and Figure 2 As shown, this application provides a telescopic rod, including a connecting part 1, a telescopic part 2, a limiting part 3, and a locking assembly 4. The connecting part 1 has an installation cavity 11, and the telescopic rod is movably disposed in the installation cavity 11. The limiting part 3 is connected to the connecting part 1, and the limiting part 3 is partially sleeved on the outside of the telescopic part 2. The limiting part 3 has a movement groove 31 that is inclined from the outer periphery to the center. A limiting ball 5 is disposed in the movement groove 31. The limiting ball 5 can abut against the outer peripheral wall of the telescopic part 2 to limit the telescopic part 2. The locking assembly 4 is sleeved on the outside of the limiting part 3 to lock the limiting ball 5 so that the telescopic part 2 is fixed in the installation cavity 11.

[0041] Specifically, in this embodiment, the connecting part 1 is a connecting rod with a mounting cavity 11, and the telescopic part 2 is a telescopic rod that is telescopically disposed within the mounting cavity 11. A limiting part 3 is sleeved on the outer side of the upper end of the connecting part 1, and the limiting part 3 is fixedly connected to the connecting part 1 by bolts. The limiting part 3 includes a connecting column part integrally formed at the top and bottom and a cylindrical ring part of a cylinder. The connecting column part is connected to the connecting part 1, and the cylindrical ring part of the limiting part 3 is located on the outer side of the telescopic part 2. The cylindrical ring part is provided with a mounting groove, and a movement groove 31 is opened on the outer peripheral wall of the mounting groove. The moving groove 31 is inclined downward from the outer periphery towards the center of the cylindrical ring part. There are three moving grooves 31, and each moving groove 31 is provided with a limiting ball 5. After the three limiting balls 5 move to the bottom of the moving groove 31, they can hug the telescopic part 2. The outside of the limiting part 3 is provided with a locking component 4. The locking component 4 can drive the limiting ball 5 to move downward and lock the position of the limiting ball 5 so that it always hugs the telescopic part 2, better fixing the length of the telescopic part 2 and the connection, so that it will not change position, and the connection is more stable and convenient.

[0042] Specifically, in this embodiment, by setting a limiting part 3, the limiting ball 5 moves downward in the movement groove 31 of the limiting part 3. The limiting ball 5 hugs the telescopic part 2, thereby fixing the position of the telescopic part 2 in the connecting part 1. Finally, the locking component 4 locks the position of the limiting ball 5 to hug the telescopic part 2, thereby positioning the length of the telescopic rod. This not only prevents the connection from being disconnected due to accidental contact, but also makes the connection more stable and prevents loosening.

[0043] like Figure 3 and Figure 4As shown, the locking assembly 4 includes a fixing member 41 and an outer cover 42. The fixing member 41 is sleeved on the outer side of the telescopic part 2 and inserted into the limiting part 3. The fixing member 41 abuts against the limiting ball 5. The outer cover 42 is sleeved on the outer side of the fixing member 41 and connected to the fixing member 41. A locking member 43 is provided on the outer peripheral wall of the limiting part 3 for locking the outer cover 42.

[0044] Furthermore, in a preferred embodiment, the locking member 43 is a sliding rod 431, and the outer cover 42 is provided with a sliding groove 44. The sliding groove 44 includes a vertical sliding groove 441 and a horizontal sliding groove 442. The horizontal sliding groove 442 is provided on one side of the upper end of the vertical sliding groove 441. The sliding rod 431 can slide along the vertical sliding groove 441 and the horizontal sliding groove 442. The horizontal sliding groove 442 is used to lock the sliding rod 431.

[0045] Furthermore, as a preferred embodiment, the portion of the fixing member 41 inserted into the limiting part 3 is arranged in a cone shape with a diameter that gradually decreases towards the center and abuts against the limiting ball 5.

[0046] Furthermore, as a preferred embodiment, the fixing member 41 is provided with a boss 411. A spring 45 is connected to the upper end face of the boss 411, and the two ends of the spring 45 abut against the outer cover 42 and the boss 411, respectively.

[0047] Furthermore, as a preferred embodiment, the outer cover 42 is provided with a through hole 421, the upper part of the fixing member 41 extends through the through hole 421, and a gasket 6 is fitted on the fixing member 41, the gasket 6 connecting the outer cover 42 and the fixing member 41. The outer peripheral wall of the outer cover 42 is provided with a connecting lug 7.

[0048] Specifically, in this embodiment, a fixing member 41 is inserted into the mounting groove on the cylindrical ring portion. The fixing member 41 includes an inserting portion, a boss 411, and a connecting portion 1 integrally formed from bottom to top. The inserting portion can be inserted into the mounting groove. When the telescopic rod is in the locked state, the inserting portion is fully inserted into the mounting groove, and the lower end face of the boss 411 abuts against the upper end face of the cylindrical ring portion. The inserting portion is arranged in a conical shape with the diameter decreasing from top to bottom. When the inserting portion is inserted downward into the mounting groove, the limiting ball 5 is pressed to move. When it is fully inserted into the mounting groove... The limiting ball 5 then moves to the bottom of the movement groove 31 and hugs the telescopic part 2. A spring 45 is provided at the upper end of the boss 411. A snap-fit ​​groove is provided on the connecting part 1, and a gasket 6 is provided in the snap-fit ​​groove. An outer cover 42 is fitted over the outside of the fixing member 41. A fixing groove is provided on the outer cover 42, and the fixing member 41 is located in the fixing groove. The outer cover 42 fits over part of the limiting part 3. The outer cover 42 and the connecting part 1 are connected by the gasket 6. The outer periphery of the outer cover 42 has "7"-shaped sliding grooves 44 formed by horizontal sliding grooves 442 and vertical sliding grooves 441 on both sides, limiting the movement. Sliding rods 431 are provided on both sides of the outer peripheral wall of part 3. The sliding rods 431 pass through the limiting part 3 and are slidably disposed in the sliding groove 44 through the outer cover 42. When the sliding rods 431 slide in the vertical sliding groove 441, they can drive the fixing member 41 to move downward. The two ends of the spring 45 are respectively connected to the upper end face of the boss 411 and the bottom of the fixing groove of the outer cover 42. When the movement is in place, the sliding rods 431 are located at the uppermost end of the vertical sliding groove 441. At this time, rotating the outer cover 42 will slide the sliding rods 431 into the horizontal sliding groove 442. At this time, the outer cover 42 and the fixing member 41 are positioned... When locked, the limiting ball 5 is located at the bottom of the movement groove 31, and the limiting ball 5 locks the telescopic part 2. At this time, the spring 45 is in a compressed state and is fixed. When it is necessary to unlock and change the length of the telescopic rod, rotate the outer cover 42 to the right so that the sliding rod 431 is located at the top of the vertical sliding groove 441. Under the elastic force of the spring 45 restoring its deformation, the fixing part 41 and the outer cover 42 move upward. At this time, the sliding rod 431 is located at the bottom of the vertical sliding groove 441, the pressure of the limiting ball 5 disappears and no longer holds the telescopic part 2, so the length of the telescopic rod can be changed.

[0049] Specifically, in this embodiment, the position of the limiting ball 5 is fixed by setting the fixing member 41, and the position of the fixing member 41 can be moved more easily by setting the outer cover 42, which can better open or lock the connection between the telescopic part 2 and the connecting part 1. By setting the sliding rod 431 to slide along the vertical sliding groove 441, and then rotating the outer cover 42, the sliding rod 431 slides into the horizontal sliding groove 442, so that the sliding rod 431 will not slide downward, thereby fixing the position of the limiting rod and fixing the position of the limiting part 3, thus locking the connection position between the telescopic part 2 and the connecting part 1. By setting the tapered fixing member 41 to match the inclined movement groove 31, the limiting ball 5 can be moved downward more easily. By setting the spring 45 to connect with the outer cover 42 and the boss 411, after rotating the outer cover 42, the spring 45 can restore its restorative properties, thereby automatically driving the outer cover 42 and the fixing member 41 to return to their original positions.

[0050] Specifically, in this embodiment, the shim 6 allows for a better connection between the fastener 41 and the outer cover 42. The connecting ear 7 makes it easier for the user to rotate the outer cover 42.

[0051] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0052] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A telescopic pole, characterized in that, The device includes a connecting part (1), a telescopic part (2), a limiting part (3), and a locking component (4). The connecting part (1) has an installation cavity (11). The telescopic part (2) is movably disposed in the installation cavity (11). The connecting part (1) is connected to the limiting part (3), and the limiting part (3) is partially sleeved on the outside of the telescopic part (2). The limiting part (3) has a movement groove (31) that is inclined from the outer periphery to the center. The movement groove (31) is provided with a limiting ball (5). The limiting ball (5) can abut against the outer periphery of the telescopic part (2) to limit the telescopic part (2). The locking component (4) is sleeved on the outside of the limiting part (3) to lock the limiting ball (5) so that the telescopic part (2) is fixed in the installation cavity (11).

2. The telescopic rod according to claim 1, characterized in that, The locking assembly (4) includes a fixing member (41) and an outer cover (42). The fixing member (41) is sleeved on the outside of the telescopic part (2), and the fixing member (41) is inserted into the limiting part (3). The fixing member (41) abuts against the limiting ball (5). The outer cover (42) is sleeved on the outside of the fixing member (41). The outer cover (42) is connected to the fixing member (41). A locking member (43) is provided on the outer peripheral wall of the limiting part (3) for locking the outer cover (42).

3. The telescopic rod according to claim 2, characterized in that, The locking element (43) is a sliding rod (431). The outer cover (42) is provided with a sliding groove (44). The sliding groove (44) includes a vertical sliding groove (441) and a horizontal sliding groove (442). The horizontal sliding groove (442) is provided on one side of the upper end of the vertical sliding groove (441). The sliding rod (431) can slide along the vertical sliding groove (441) and the horizontal sliding groove (442). The horizontal sliding groove (442) is used to lock the sliding rod (431).

4. The telescopic rod according to claim 2, characterized in that, The portion of the fixing member (41) inserted into the limiting part (3) is arranged in a cone shape with a diameter that gradually decreases towards the center and abuts against the limiting sphere (5).

5. The telescopic rod according to claim 2, characterized in that, The fastener (41) is provided with a boss (411).

6. The telescopic rod according to claim 5, characterized in that, A spring (45) is connected to the upper end face of the boss (411), and the two ends of the spring (45) abut against the outer cover (42) and the boss (411) respectively.

7. The telescopic rod according to claim 2, characterized in that, The outer cover (42) is provided with a through hole (421), the upper part of the fastener (41) extends through the through hole (421), and a gasket (6) is fitted on the fastener (41). The gasket (6) connects the outer cover (42) and the fastener (41).

8. The telescopic rod according to claim 2, characterized in that, The outer peripheral wall of the outer cover (42) is provided with connecting ears (7).

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