CN215928040U - Telescopic device and telescopic rod thereof - Google Patents

Abstract

The utility model discloses a telescopic rod which comprises a hollow female rod and at least one sub rod which are coaxially sleeved, wherein the caliber of the female rod is larger than that of the sub rod, the rear end of the sub rod is provided with a limiting part, the limiting part comprises an inner sleeve and an elastic button, the inner sleeve is arranged inside the sub rod and is attached to the inner surface of the sub rod, the outer surface of the inner sleeve is provided with a button groove for accommodating the elastic button, a stand column is arranged in the button groove, the inner side of the elastic button is provided with a spring for being sleeved on the stand column, the front end of the female rod is sleeved on the outer surface of the sub rod, the front end of the female rod is provided with a first limiting hole, the rear end of the sub rod is provided with a second limiting hole, and the elastic button is exposed through the first limiting hole and the second limiting hole. The utility model also discloses a telescopic device, the telescopic rod can freely stretch and retract the multi-section rod, the length of the rod can be quickly and conveniently adjusted, and time and labor are saved.

Description

Telescopic device and telescopic rod thereof

Technical Field

The utility model belongs to the field of telescopic rods, and particularly relates to a telescopic device and a telescopic rod thereof.

Background

The existing rods are mostly of an integrated structure, the telescopic adjustment on the length cannot be carried out, even if the telescopic adjustment on the length is carried out by a plurality of rods, the telescopic adjustment on the length can be carried out only by assembling and matching the threads or bolts to connect the rods with the extension rods, the time and the labor are consumed, and the free telescopic adjustment on the rods cannot be carried out anytime and anywhere.

Therefore, how to make the rod capable of being quickly and conveniently adjusted in a telescopic way is a technical problem to be solved by technical personnel in the technical field.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a telescopic device and a telescopic rod thereof, and solves the problem that the length of the telescopic rod in the prior art cannot be freely adjusted in a telescopic mode.

In order to solve the technical problem, the technical scheme adopted by the utility model is to provide a telescopic rod, which comprises a hollow female rod and at least one hollow sub-rod which are coaxially sleeved, wherein the caliber of the female rod is larger than that of the sub-rod, the rear end of the sub-rod is provided with a limiting part, the limiting part comprises an inner sleeve and an elastic button, the inner sleeve is arranged inside the sub-rod and is attached to the inner surface of the sub-rod, the outer surface of the inner sleeve is provided with a button groove for accommodating the elastic button, an upright post is arranged in the button groove, the inner side of the elastic button is provided with a spring which is sleeved on the upright post, the front end of the female rod is sleeved on the outer surface of the sub-rod, the front end of the female rod is provided with a first limiting hole, the rear end of the sub-rod is provided with a second limiting hole, and the elastic button is exposed through the first limiting hole and the second limiting hole.

Preferably, the inner side of the elastic button is provided with a spring groove for accommodating the spring.

Preferably, the inner edge of the front end of the female rod is provided with a retraction type chamfer, and the height of the retraction type chamfer is greater than the height of the elastic button exposed out of the outer surface of the sub-rod.

Preferably, the inner surfaces of the female rod and the male rod are provided with sliding protrusions, the outer surfaces of the female rod and the male rod are provided with sliding grooves, the sliding protrusions and the sliding grooves are located in an inner-outer correspondence mode, the sliding protrusions and the sliding grooves extend along the direction of the central axis of the female rod and the central axis of the male rod, and the sliding grooves are used for the sliding protrusions to slide in the sliding grooves.

Preferably, the rear end sleeve of the sub-rod is provided with a fixing sleeve, the outer surface of the fixing sleeve is provided with an anti-falling protrusion, and the outer surface of the front end of the main rod is provided with an anti-falling hole for embedding the anti-falling protrusion.

Preferably, the rear end of the sub-rod is sleeved with a fixed sleeve sheet, the fixed sleeve sheet is an arc-shaped sleeve chuck attached to the outer surface of the sub-rod, the inner surface of the fixed sleeve sheet is provided with a clamping protrusion, and the rear end of the sub-rod is provided with a clamping hole for the clamping protrusion to be embedded and clamped and fixed.

Preferably, the fixing sleeve is provided with an opening for exposing the elastic button.

Preferably, the fixed nest plate has a nest plate gap through which the sliding protrusion and the sliding groove pass.

Preferably, the front end of the female rod is sleeved with a protective hoop, the protective hoop is provided with an elastic press button formed by hollowing, and the position of the elastic press button corresponds to the position of the elastic press button.

The utility model also discloses a telescopic device which comprises a telescopic rod, and the mobile phone support, the umbrella, the light supplement lamp support and/or the fan, wherein the mobile phone support, the umbrella, the light supplement lamp support and/or the fan are/is arranged on the telescopic rod, and the telescopic rod is the telescopic rod.

The utility model has the beneficial effects that: the utility model discloses a telescopic rod which comprises a hollow female rod and at least one sub rod which are coaxially sleeved, wherein the caliber of the female rod is larger than that of the sub rod, the rear end of the sub rod is provided with a limiting part, the limiting part comprises an inner sleeve and an elastic button, the inner sleeve is arranged inside the sub rod and is attached to the inner surface of the sub rod, the outer surface of the inner sleeve is provided with a button groove for accommodating the elastic button, a stand column is arranged in the button groove, the inner side of the elastic button is provided with a spring for being sleeved on the stand column, the front end of the female rod is sleeved on the outer surface of the sub rod, the front end of the female rod is provided with a first limiting hole, the rear end of the sub rod is provided with a second limiting hole, and the elastic button is exposed through the first limiting hole and the second limiting hole. The utility model also discloses a telescopic device, the telescopic rod can freely stretch and retract the multi-section rod, the length of the rod can be quickly and conveniently adjusted, and time and labor are saved.

Drawings

FIG. 1 is a schematic view of an embodiment of the telescopic rod of the present invention;

FIG. 2 is a schematic view of the embodiment of FIG. 1 in a contracted state;

FIG. 3 is a schematic exploded view of another embodiment of the extension pole of the present invention;

FIG. 4 is an enlarged view of part A of the embodiment shown in FIG. 3;

FIG. 5 is a schematic cross-sectional view of another embodiment of the extension pole of the present invention;

FIG. 6 is a schematic view showing another embodiment of the telescopic rod of the present invention, in which a part of the sub-rod is retracted into the main rod;

FIG. 7 is an enlarged view of part B of the embodiment shown in FIG. 6;

FIG. 8 is an exploded view of another embodiment of the extension pole of the present invention;

FIG. 9 is an enlarged view of part C of the embodiment of FIG. 8;

FIG. 10 is an exploded view of another embodiment of the extension pole of the present invention;

FIG. 11 is an enlarged view of portion D of the embodiment of FIG. 10;

fig. 12 is a schematic view of the spacing sleeve of the embodiment of fig. 10.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In the drawings, the arrow X direction indicates the front-rear direction, i.e., the front-side-rear-side direction, the arrow Y indicates the lateral direction, i.e., the lateral direction, and the arrow Z indicates the vertical direction, i.e., the up-down direction.

Referring to fig. 1, 2, 3, 4 and 5, in an embodiment of the present invention, the telescopic rod includes a female rod 1 and at least one sub-rod 2 coaxially sleeved and hollow, a bore of the female rod 1 is greater than a bore of the sub-rod 2, a limiting member 3 is disposed at a rear end of the sub-rod 2, the limiting member 3 includes an inner sleeve 31 and an elastic body 32, the inner sleeve 31 is disposed inside the sub-rod 2 and attached to an inner surface of the sub-rod 2, the elastic body 32 is disposed on the inner sleeve 31, a front end of the female rod 1 is sleeved on an outer surface of the sub-rod 2, a first limiting hole 11 is disposed at a front end of the female rod 1, a second limiting hole 21 is disposed at a rear end of the sub-rod 2, the elastic body 32 passes through the first limiting hole 11 and the second limiting hole 21, when the elastic body 32 is exposed to the outside, the relative sliding between the female rod 1 and the sub-rod 2 is limited, the telescopic rod is ensured to be unable to be deformed, when the elastic body 32 is pressed to be retracted, can stimulate son pole 2 and slide for female pole 1 for son pole 2 gets into the inside of female pole 1, accomplish the shortening of the length of pole, otherwise, the son pole 2 of pull, make son pole 2 roll-off from female pole 1, elastomer 32 accomplishes the locking because the resilience characteristic of self can kick-back automatically and imbed in first spacing hole 11 and the spacing hole 21 of second, and then accomplish the extension of the length of pole, this kind of setting can realize the free flexible function of this telescopic link, convenient high efficiency, time saving and labor saving.

Preferably, the elastic body 32 is an elastic piece with an arc-shaped bend, a first end of the elastic piece is connected with the outer surface of the inner sleeve 31, a second end of the elastic piece is provided with an elastic terminal 321 which can be pressed and forms elastic fluctuation, the elastic terminal 321 is exposed to the outside through the first limiting hole 11 and the second limiting hole 21, and the elastic terminal 321 is conveniently used for pressing.

Preferably, the outer surface of the inner sleeve 31 is provided with a groove 311 for accommodating the elastic sheet, a strip-shaped protrusion 3111 is arranged in the groove 311, a strip-shaped hole 322 is formed in the first end of the elastic sheet, the strip-shaped protrusion 3111 is used for being embedded into and clamping the strip-shaped hole 322, the elastic sheet is convenient to mount and dismount quickly, and meanwhile, the damaged elastic sheet is convenient to replace subsequently.

Preferably, with reference to fig. 6 and 7, an inner edge of the front end of the female rod 1 is provided with an inwardly-retracted chamfer 12, the chamfer height of the inwardly-retracted chamfer 12 is greater than the height of the elastic terminal 321 exposed out of the outer surface of the secondary rod, when the number of the secondary rods 2 is greater than one, that is, when a plurality of secondary rods 2 are sequentially sleeved at the front end of the female rod 1 (in this embodiment, five secondary rods 2 are all included), the elastic body 32 (or the elastic terminal 321) located in the first limiting hole 11 of the female rod 1 is pressed, and the secondary rod 2 closest to the female rod 1 is pushed into the female rod 1, during the process of the secondary rod 2 entering the female rod 1, the elastic body 32 of the limiting member 3 connecting the first secondary rod 2 and the second secondary rod 2 passes through the inwardly-retracted chamfer 12, and the inwardly-pressed elastic body 32 is pressed by the inwardly-retracted chamfer 12, so as to unlock the locking relationship between the first secondary rod 2 and the second secondary rod 2, so as to let the inside that the second son pole 2 can continue to get into first son pole 2, analogize with this, the elastomer 32 of locating part 3 that back son pole 2 set up between extrusion and the previous son pole 2 of this internal contraction formula chamfer 12, thereby make back son pole 2 pushed previous son pole 2, accomplish the inside operation of the female pole 1 of follow-up a plurality of son poles 2 continuance entering, and through setting up this internal contraction formula chamfer 12, realized only can realizing the operation of the female pole 1 of the internal contraction of follow-up all son poles 2 through once manually pressing the elastomer 32, need not repetitious pressing the elastomer 32 many times, the very big flexible efficiency of this telescopic link that improves, time saving and labor saving.

The limiting member 3 and the opening for exposing the elastic body 32 of the limiting member 3 are also disposed between the subsequent sub-rods 2, and the structure and the position configuration are similar to those of the above-mentioned sub-rods 2 and the above-mentioned mother rod 1, and are not described again here.

Further preferably, the inner edge of the front end of each sub-rod 2 is provided with a retraction type chamfer, so that the elastic body 32 on the sub-rod 2 subsequently arranged is extruded through the retraction type chamfer conveniently, and the next sub-rod 2 can enter the inside of the previous sub-rod 2 without manually pressing the elastic body 32 again, so that time and labor are saved.

Preferably, the inner surfaces of the female rod 1 and the male rod 2 are provided with a sliding protrusion T1, the outer surfaces of the female rod 1 and the male rod 2 are provided with a sliding groove C1, the positions of the sliding protrusion T1 and the sliding groove C1 correspond to each other, the sliding protrusion T1 and the sliding groove C1 extend along the direction of the central axis of the female rod 1 and the male rod 2, the sliding groove C1 is used for the sliding protrusion T1 to slide in, the sliding protrusion T1 and the sliding groove C1 are arranged to enable the male rod 2 to slide into the female rod 1 more smoothly, the sliding track of the male rod 2 is defined, and the situation that the direction of the male rod 2 deviates in the sliding process is avoided.

Preferably, the rear end cover of sub-pole 2 is equipped with fixed sleeve 4, the surface of fixed sleeve 4 is provided with anticreep arch 41, anticreep hole 13 that supplies the protruding embedding of anticreep is seted up to the surface of the front end of female pole 1, set up this fixed sleeve 4 when preventing that sub-pole 2 and female pole 1 from taking place relative slip, sub-pole 2 breaks away from on female pole 1, avoid breaking away from of sub-pole 2 and female pole 1 promptly, the gomphosis of anticreep arch 41 and anticreep hole 13 is connected and has been guaranteed that sub-pole 2 and female pole 1 have the limit on the sliding distance in the slip process, can not make sub-pole 2 and female pole 1 break away from each other, and simultaneously, in the embodiment that has a plurality of sub-poles 2, fixed sleeve 4 can also prevent two adjacent branch 2 from breaking away from each other.

Further preferably, when the fixing sleeve 4 is disposed on the sub-rod 2, the inner edge of the front end of the fixing sleeve 4 is provided with a retractable chamfer, that is, the inner edge of the front end of the main rod 1 or the sub-rod 2 is covered at this time, so that the retractable chamfer can be disposed on the inner edge of the front end of the fixing sleeve 4.

Further preferably, the fixing sleeve 4 is correspondingly provided with a sliding protrusion T1 and a sliding groove C1.

Further preferably, each subsequent sub-rod 2 is also correspondingly provided with a fixing sleeve 4 and an anti-falling hole 13, and the arrangement form is similar to that of the sub-rod 2 and the female rod 1, and is not described again here.

Preferably, the rear end cover of son pole 2 is equipped with fixed nest plate 5, fixed nest plate 5 is the arc sheet board of the surface of the son pole 2 of laminating, the internal surface of fixed nest plate 5 is provided with the protruding 53 of block, the block hole 22 that supplies the protruding 53 embedding of block and block to fix is offered to the rear end of son pole 2, the setting of fixed nest plate 5, make fixed nest plate 5 to support fixed sleeve 4 at the end of the rear end of son pole 2 on the one hand, avoid fixed sleeve 4 to break away from on the son pole 2, fixed sleeve 4 has been strengthened being connected with son pole 2 promptly, on the other hand also makes the end of the rear end of son pole 2 to the space of the surface that exists between the fixed sleeve 4 filled up, do benefit to the steady flexible slip of son pole 2.

Preferably, the fixed sleeve 5 has a sleeve gap for the sliding protrusion T1 and the sliding groove C1 to pass through, specifically, two fixed sleeves 5 are provided, which are respectively a first fixed sleeve 51 and a second fixed sleeve 52, and a sleeve gap is provided between the first fixed sleeve 51 and the second fixed sleeve 52, and the sleeve gap is for the sliding protrusion T1 and the sliding groove C1 to pass through.

More preferably, the fixing sleeve piece 5 is provided with an opening 54 for exposing the elastic body 32.

Preferably, female pole 1's front end cover is equipped with protection cuff 6, is provided with the elasticity that the fretwork formed on the protection cuff 6 and presses button 61, and the elasticity is pressed button 61's position and is corresponded with first spacing hole 11 positions, and protection cuff 6 not only can protect locating part 3 to avoid the invasion and attack of rainwater or dust, also lets this telescopic link whole more approach to the cylinder simultaneously for the outward appearance is more pleasing to the eye, is convenient for simultaneously to hold by hand, and the edges and corners reduce, does not press against the hand.

Referring to fig. 8 and 9, in another embodiment, the present invention further discloses a telescopic rod, which is different from the telescopic rod in the first embodiment in that the telescopic rod is different in a limit stop, specifically, the telescopic rod includes a female rod a1 and at least one male rod a2, which are coaxially sleeved and hollow, the caliber of the female rod a1 is larger than the caliber of the male rod a2, the rear end of the male rod a2 is provided with a limit stop A3, the limit stop A3 includes an inner sleeve a31 and an elastic button a32, the inner sleeve a31 is disposed inside the male rod a2 and is attached to the inner surface of the male rod a2, the outer surface of the inner sleeve a31 is provided with a button groove a311 for accommodating the elastic button a32, the button groove a311 is provided with a post a3111, the inner side of the elastic button a32 is provided with a spring a33 for being sleeved on the post, the front end of the female rod a1 is sleeved on the outer surface of the male rod a2, the front end of the female rod a1 is provided with a11, the rear end of the sub-rod A2 is provided with a second limiting hole A21, and the elastic button A32 is exposed through the first limiting hole A11 and the second limiting hole A21. In addition to the technical effects of the first embodiment, the elastic button a32 has a longer service life compared to the elastic sheet of the first embodiment, the elastic sheet gradually loses its elastic force after being pressed for a long time, and there is a risk that the elastic sheet is excessively deformed and broken when pressed, but in this embodiment, the elastic button a32 has a rebound function of reciprocating up and down by using the spring a33, the spring has a longer elastic service life compared to the elastic sheet and will not break, and the spring is easier to find in real life and application compared to the elastic sheet, i.e., the availability of the spring is much higher than that of the elastic sheet, so that even if the spring is damaged, a substitute can be quickly found at the first time, and the elastic sheet is more difficult to find.

The arrangement of the upright post A3111 limits the motion track of the spring A33, prevents the spring A33 from twisting and shaking, and ensures the linear elastic reciprocating motion of the elastic button A32.

The embodiment shown in fig. 8 and 9 only has the female rod a1 and one sub rod a2, and in practical application, a plurality of sub rods a2 may be provided, and the structure and arrangement form are similar to those of the first embodiment, and only one sub rod a2 is illustrated in the drawings, which is not repeated and illustrated herein.

Preferably, the inner side of the elastic button a32 is provided with a spring groove (not shown) for accommodating the spring a33, so that the spring can be better fixed and prevented from shaking, and the elastic button a32 keeps a linear motion track when performing elastic movement in an up-and-down reciprocating manner.

Preferably, the inner edge of the front end of the female rod a1 is provided with a retractable chamfer, and the height of the retractable chamfer is greater than the height of the elastic button a32 exposed out of the outer surface of the sub rod a 2.

Preferably, the rear end of the sub-rod a2 is sleeved with a fixing sleeve a4, the outer surface of the fixing sleeve a4 is provided with an anti-falling protrusion a41, and the outer surface of the front end of the main rod a1 is provided with an anti-falling hole a12 for the anti-falling protrusion a41 to be inserted into.

Preferably, the rear end of the sub-rod a2 is sleeved with a fixed sleeve sheet a5, the fixed sleeve sheet a5 is an arc-shaped sleeve chuck attached to the outer surface of the sub-rod a2, the inner surface of the fixed sleeve sheet a5 is provided with a clamping protrusion a51, and the rear end of the sub-rod a2 is provided with a clamping hole a22 for the clamping protrusion a51 to be embedded and clamped and fixed.

The fixed sleeve piece A5 is provided with an opening A52 for exposing the elastic button A32.

The front end of the female rod A1 is sleeved with a protective hoop A6, the protective hoop A6 is provided with an elastic pressing button A61 which is formed by hollowing out, and the position of the elastic pressing button A61 corresponds to the position of the elastic button A32.

With reference to fig. 10, 11 and 12, in another embodiment, the present invention further discloses a telescopic rod, which is different from the telescopic rod in the previous embodiment in that the difference between the limiting member and the limiting sleeve is:

the telescopic rod comprises a female rod B1 and at least one sub rod B2 which are coaxially sleeved and hollow, the caliber of the female rod B1 is larger than that of the sub rod B2, the rear end of the sub rod B2 is provided with a limiting sleeve B3, a limiting sleeve B3 is arranged inside the sub rod B2 and is attached to the inner surface of the sub rod B2, the side wall of a limiting sleeve B3 is provided with a hollowed pressing terminal B31, the front end of the female rod B1 is sleeved on the outer surface of the sub rod B2, the front end of the female rod B1 is provided with a first limiting hole B11, the rear end of the sub rod B2 is provided with a second limiting hole B21, the pressing terminal B31 is exposed through the first limiting hole B11 and the second limiting hole B21, the limiting sleeve B3 and the hollowed pressing terminal B31 are arranged, the two are integrated, and the pressing terminal B31 is of a hollowed structure, so that the whole weight of the limiting sleeve B3 is reduced, and the whole weight of the telescopic rod is more convenient for a user to operate, and because the form that sets up of integrative fretwork again also makes and presses efficiency higher, can not appear like the condition that blocks appear in two above-mentioned embodiments flexure strip or spring, owing to be integrative hollow out construction simultaneously, can carry out holistic equipment and dismantlement fast, need be by one equipment like flexure strip and spring in two above-mentioned embodiments, more save time.

Preferably, the pressing terminal B31 includes a pressing portion B311 and an elastic beam B312, the elastic beam B312 is disposed on two sides of the pressing portion B311, specifically, there are two elastic beams B312, two side edges of the elastic beam B312 and the periphery of the pressing portion B311 are provided with a hollow through hole K1, the end portions of the two elastic beams B312 are connected to the pressing portion B311, the pressing portion B311 can elastically move up and down through elastic deformation of the elastic beam B312, so as to enter or expose the first limiting hole B11 and the second limiting hole B21, and finally unlock or lock the female rod B1 and the sub-rod B2, similarly, the number of the sub-rods B2 is not limited, when there are a plurality of sub-rods B2, the rear end of each sub-rod is provided with a limiting sleeve B3, the arrangement form is similar to that of the foregoing embodiments, and will not be described again here.

Preferably, the inner edge of the front end of the female rod B1 is provided with a recessed chamfer, the chamfer height of the recessed chamfer is greater than the height of the pressing portion B311 exposed on the outer surface of the sub-rod B2, if a plurality of sub-rods B2 exist, then two adjacent sub-rods B2 are used, wherein the inner edge of the front end of the sub-rod B2 close to the female rod B1 is provided with a recessed chamfer, the chamfer height of the recessed chamfer is greater than the height of the pressing portion B311 of the limiting sleeve B3 connecting the two support rods B2 exposed on the outer surface of the sub-rod B2 far away from the female rod B1, that is, the chamfer height of the recessed chamfer of the previous sub-rod B2 (closer to the female rod B1) is greater than the height of the pressing portion B311 of the limiting sleeve B3 on the next sub-rod B2 exposed on the outer surface of the next sub-rod B2, the technical effects have been described and are not repeated.

The rear end of the sub-rod B2 is sleeved with a fixing sleeve B4, the outer surface of the fixing sleeve B4 is provided with an anti-falling protrusion B41, and the outer surface of the front end of the main rod B1 is provided with an anti-falling hole B12 for the anti-falling protrusion B41 to be embedded in.

Similarly, when a plurality of sub-bars B2 are provided, a fixing sleeve B4 is provided at the rear end of each sub-bar B2 to prevent adjacent two sub-bars B2 from being disengaged from each other.

Preferably, the rear end of the sub-rod B2 is sleeved with a fixing sleeve sheet B5, the fixing sleeve sheet B5 is an arc-shaped sheet plate attached to the outer surface of the sub-rod B2, the inner surface of the fixing sleeve sheet B5 is provided with an engaging protrusion B51, and the rear end of the sub-rod B2 is provided with an engaging hole B22 into which the engaging protrusion B51 is inserted and engaged and fixed.

Preferably, the fixing strap B5 is provided with an opening B52 for exposing the press terminal B31.

The front end of the female rod B1 is sleeved with a protection hoop B6, the protection hoop B6 is provided with an elastic pressing button B61 formed by hollowing out, and the position of the elastic pressing button B61 corresponds to the position of the pressing terminal B31.

The utility model also discloses a telescopic device which comprises a telescopic rod, a mobile phone support, an umbrella, a light supplement lamp support and/or a fan, wherein the mobile phone support, the umbrella, the light supplement lamp support and/or the fan are/is arranged on the telescopic rod, the telescopic rod is the telescopic rod of any one of the embodiments, and the fan or the mobile phone support is arranged on the telescopic rod, so that the height or the length of the fan can be adjusted, the blowing height can be adjusted, the user experience is improved, and similarly, the telescopic rod can be used for a mobile phone selfie stick, the free telescopic adjustment of the selfie stick is realized, the photographing is convenient, and the photographing experience of the user is improved.

Based on the above embodiment, the utility model discloses a telescopic rod, which comprises a hollow female rod and at least one sub rod which are coaxially sleeved, wherein the caliber of the female rod is larger than that of the sub rod, the rear end of the sub rod is provided with a limiting part, the limiting part comprises an inner sleeve and an elastic button, the inner sleeve is arranged inside the sub rod and is attached to the inner surface of the sub rod, the outer surface of the inner sleeve is provided with a button groove for accommodating the elastic button, a stand column is arranged in the button groove, the inner side of the elastic button is provided with a spring which is sleeved on the stand column, the front end of the female rod is sleeved on the outer surface of the sub rod, the front end of the female rod is provided with a first limiting hole, the rear end of the sub rod is provided with a second limiting hole, and the elastic button is exposed through the first limiting hole and the second limiting hole. The utility model also discloses a telescopic device, the telescopic rod can freely stretch and retract the multi-section rod, the length of the rod can be quickly and conveniently adjusted, and time and labor are saved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a telescopic link, its characterized in that, cup joints and hollow female pole and at least one sub-pole including mutual coaxial, the bore of female pole is greater than the bore of sub-pole, the rear end of sub-pole is provided with the locating part, the locating part includes inner skleeve and elastic button, the inner skleeve set up in the inside and the laminating of sub-pole the internal surface of sub-pole, the surface of inner skleeve is provided with and is used for holding elastic button's button groove, be provided with the stand in the button groove, elastic button's inboard is provided with and is used for the cover to establish spring on the stand, the front end cover of female pole is established the surface of sub-pole, the front end of female pole is provided with first spacing hole, the rear end of sub-pole is provided with the spacing hole of second, elastic button passes through first spacing hole and the spacing hole of second expose.

2. The extension pole of claim 1, wherein the inner side of said elastic button is provided with a spring groove for receiving said spring.

3. The telescopic rod according to claim 2, wherein the inner edge of the front end of the female rod is provided with a retraction type chamfer, and the chamfer height of the retraction type chamfer is greater than the height of the elastic button exposed out of the outer surface of the sub rod.

4. The telescopic rod according to any one of claims 1 to 3, wherein the inner surfaces of the female rod and the male rod are provided with sliding protrusions, the outer surfaces of the female rod and the male rod are provided with sliding grooves, the positions of the sliding protrusions and the sliding grooves correspond to each other in an inner-outer mode, the sliding protrusions and the sliding grooves extend along the direction of the central axis of the female rod and the male rod, and the sliding grooves are used for the sliding protrusions to slide in.

5. The telescopic rod according to claim 4, wherein a fixing sleeve is sleeved at the rear end of the secondary rod, an anti-falling protrusion is arranged on the outer surface of the fixing sleeve, and an anti-falling hole for the anti-falling protrusion to be embedded into is formed in the outer surface of the front end of the primary rod.

6. The telescopic rod according to claim 5, wherein the rear end of the sub rod is sleeved with a fixed sleeve sheet, the fixed sleeve sheet is an arc-shaped sleeve chuck attached to the outer surface of the sub rod, the inner surface of the fixed sleeve sheet is provided with a clamping protrusion, and the rear end of the sub rod is provided with a clamping hole for the clamping protrusion to be embedded and clamped and fixed.

7. The telescopic rod of claim 6, wherein the fixing strap has an opening formed therein for exposing the elastic button.

8. The extension pole of claim 7 wherein said fixed strap has a strap gap through which said sliding protrusion and sliding groove pass.

9. The telescopic rod according to claim 1, wherein a protective hoop is sleeved at the front end of the female rod, an elastic pressing button formed by hollowing out is arranged on the protective hoop, and the position of the elastic pressing button corresponds to the position of the elastic button.

10. A telescopic device, which is characterized by comprising a telescopic rod, and a mobile phone support, an umbrella, a light supplement lamp support and/or a fan, wherein the mobile phone support, the umbrella, the light supplement lamp support and/or the fan are/is arranged on the telescopic rod, and the telescopic rod is the telescopic rod in any one of claims 1 to 9.

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