CN217107729U

CN217107729U - Telescopic structure

Info

Publication number: CN217107729U
Application number: CN202220524530.6U
Authority: CN
Inventors: 章安良
Original assignee: Wuyi University
Current assignee: Wuyi University
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-08-02
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a telescopic structure, it regards article shell as the base rod, it includes the extension rod, two fenders of "concave" style of calligraphy structure, a stabilizing mean for stabilizing the extension rod when the extension rod stretches out and draws back, the extension rod pastes on the upper surface of base rod and the length direction between them is unanimous, be equipped with at least one stop component on the extension rod, two fenders are on the upper surface of base rod with recess parallel locating front and back down, and the length direction of fenders is unanimous with the width direction of base rod, the extension rod limits under the recess of two fenders, the recess of fenders only supplies the extension rod to rotate and supply stop component to pass on the groove length on the groove depth, stop component and the cooperation of fenders realize the fixed of extension rod, stabilizing mean locate on the upper surface of base rod and lie in the place ahead of the fender that distributes in the front; the telescopic rod has the advantages that the telescopic rod is telescopic by taking the outer shell of an object as a base rod, and the occupied space is small.

Description

Telescopic structure

Technical Field

The utility model relates to a telescoping device especially relates to a can stretch out and draw back one section limit length's extending structure on the length basis of the outer casing of small-size article, light weight article.

Background

The telescopic rod is an object capable of changing the length of the rod, and can be extended to meet the required length when working; when not needed, the folding device is folded and shortened, and the space is saved. The typical characteristic of telescopic link has flexible function, its advantage is small, accomodate convenient, portable, consequently, the telescopic link wide application in each aspect of life, if: the common selfie stick that has the smart mobile phone, the flexible clothes-horse of clothes-horse, the flexible fishing rod, flexible rain gear, flexible mop that the fishing fan used etc..

Because the telescopic link advantage that self has, consequently developed the telescopic link that is suitable for different application occasions, different structures according to the telescopic link principle of constitution, satisfy people's life demand. The telescopic rod in the early stage is assembled when being used, the requirement on the length of an object is met, the telescopic rod is disassembled after being used, and the telescopic rod is convenient to store. The later telescopic rod is an improvement which is provided aiming at the technical problems of the earlier telescopic rod. A typical telescopic rod structure is a coaxial sleeve structure, the structure is commonly used for a selfie stick of a smart phone, the structure comprises a large telescopic joint and a small telescopic joint which are coaxially sleeved, a fixed positioning rod is installed at the rear end of the small telescopic joint, and the length of the telescopic joint is changed by telescopic movement of an arc drum surface of the small telescopic joint and a limit sleeve which is obviously fixed in the large telescopic joint, so that the telescopic function of the rod is realized; the coaxial sleeve structure has the advantages of one-step molding and convenient production. Another typical telescopic rod structure is that the pipe diameter is sequentially decreased progressively to perform length expansion, and adjacent pipe fittings are connected by a supporting and limiting structure to form a lantern ring. Also, as a utility model of Chinese announced, "a simple and convenient telescopic rod" (patent No. 202021370860.1, publication No. CN213270599U), the telescopic rod comprises a first rod, a second rod with one end slidably disposed in the first rod, a fixing device disposed on the first rod near one end of the second rod for fixing the first rod and the second rod, and a moving device disposed on the first rod for moving the second rod, wherein the fixing device comprises a fixing plate and a pressing block, the fixing plate is fixed on the first rod, the fixing plate is provided with a groove, a support rod is fixed on the side wall of the groove, a convex block rotationally matched with the support rod is sleeved on the support rod, a driving plate is fixed on the convex block, the inner wall of the first rod is provided with a sliding hole, the pressing block is slidably disposed in the sliding hole, a return groove is formed on the side wall of the sliding hole, a return block is slidably disposed in the return groove, the return block is fixed with the pressing block, a return spring I is fixed in the return groove, one end of the return spring I is fixed with the return block, the clamping assembly is arranged on the side wall of the groove, so that the clamping assembly has the advantages of high locking force and convenience in elongation; this kind of telescopic link adopts reply spring and briquetting to make two poles slide in one pole and stretch out and draw back, changes the length of telescopic link, owing to need reply the spring, consequently can not integrate integratively, has increased cost and volume, has the space of improvement. The common problems of the existing telescopic rods are as follows: all of them are focused on length extension and retraction of rod, and cannot be directly applied to the occasions requiring extension and retraction of a certain length on the basis of the length and shape of the base surface of the object, so that it is necessary to research an extension and retraction structure which takes the outer shell of the object as the base rod to extend and retract a certain length.

Disclosure of Invention

The utility model aims to solve the technical problem that a extending structure is provided, it uses the shell of article to realize flexible as the base rod, and occupation space is little.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a telescopic structure is characterized in that an article outer casing is used as a base rod and comprises an extension rod, two baffle strips with a concave-shaped structure and a stabilizing mechanism for stabilizing the extension rod when the extension rod extends and retracts, the extension rod is attached to and placed on the upper surface of the base rod, the length direction of the extension rod is consistent with that of the base rod, at least one limiting member is arranged on the extension rod, the two baffle strips are arranged on the upper surface of the base rod in a front-back parallel mode in a mode that grooves face down, the length direction of the baffle strips is consistent with the width direction of the base rod, the extension rod is limited under the grooves of the two baffle strips, the grooves of the baffle strips only allow the extension rod to rotate on the groove depth and can allow the limiting member to pass on the groove length, stop member with distribute behind the blend stop cooperation realize the extension rod withdraw the back fixed, stop member with distribute in the front the blend stop cooperation realize the extension rod stretch out the back fixed, stabilizing mean set up in the upper surface of base rod on and be located and distribute in the front the place ahead of blend stop.

Stabilizing mean by two bilateral symmetry set up in the upper surface of base rod on the stable block constitute, two the relative terminal surface design of stable block be for with the identical arcwall face of periphery of extension rod, two the arcwall face constitute relatively one with extension rod looks adaptation and be used for stabilizing the stabilization hole of extension rod. The two arc-shaped surfaces form a hoop structure to tightly hold the extension rod, so that the extension rod cannot automatically rotate under the condition of no external force.

The limiting component comprises two blocking columns which are arranged in the same direction, the distance between the two blocking columns is consistent with the width of the blocking strip, and the diameter of each blocking column is smaller than that of the extension rod. The distance between the two blocking columns is limited, so that the two blocking columns can be used for clamping the barrier strips to realize the length positioning of the extension rods; the requirement that the diameter of the barrier post be smaller than the diameter of the extension rod is to ensure that the barrier post passes through the groove of the barrier strip.

The groove depth of the groove of the barrier strip is larger than the diameter of the extension rod by 0.5-2 mm. The groove depth of the groove of the barrier strip is limited to ensure that the extension rod flexibly rotates under the groove of the barrier strip under the action of external force and the whole height of the barrier strip is reduced.

The length of the groove of the barrier strip is greater than the sum of the diameter of the extension rod and twice the length of the barrier column. Because the blocking column is fixed on the circumferential surface of the extension rod, the blocking column can penetrate through the groove of the barrier strip by rotating the extension rod leftwards or rightwards, so that the length of the groove of the barrier strip is limited.

The extension rod on distribute a plurality of stop component along its length direction, all stop component set up the direction syntropy, one of them stop component after the extension rod withdraw completely with distribute after the blend stop cooperation. The plurality of limiting members are arranged to be respectively matched with the retaining strips distributed in the front, so that the extension lengths of the extension rods can be different, and the extension lengths of the extension rods can be changed; the arrangement directions of all the limiting components are set to be the same direction, so that the operation and the use are more convenient; after the extension rod is completely retracted, the extension rod is fixed by utilizing a limiting component, so that the extension rod does not move under the action of external force.

Compared with the prior art, the utility model has the advantages of:

1) when the extension rod needs to be extended, the extension rod is pushed to move forwards, the extension rod can be rotated in the moving process of the extension rod, so that the limiting component penetrates through the groove of the barrier strip, the smooth movement of the extension rod is not influenced, and when the extended length of the extension rod meets the length requirement, the extension rod is rotated in the opposite direction, so that the limiting component is matched with the barrier strips distributed in front to realize the positioning and fixing of the extension rod; when needs extension rod withdraws, reverse promotion extension rod backward movement avoids stopping of stop member through rotating the extension rod equally, makes stop member and the blend stop cooperation realization extension rod's behind the distribution fixed location after the extension rod withdraws completely.

2) When the length of the extension rod is less than or equal to that of the base rod, the extension rod does not occupy redundant space in length and occupies smaller space in height when the extension rod is completely retracted.

Drawings

Fig. 1 is an overall schematic view of the telescopic structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic view of fig. 1 with the extension rod removed.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The utility model provides a telescopic structure, as shown in the figure, it takes the outer shell of article as base rod 1, it includes extension rod 2, two bars 3 of "concave" style of calligraphy structure, stabilizing mean 4 for stabilizing extension rod 2 when extension rod 2 stretches out and draws back, extension rod 2 is laminated and put on the upper surface of base rod 1, and the length direction of extension rod 2 is unanimous with the length direction of base rod 1, extension rod 2 is provided with at least one spacing component 5, two bars 3 are parallel arrangement on the upper surface of base rod 1 from front to back with recess 31 down mode, and the length direction of bar 3 is unanimous with the width direction of base rod 1, two convex parts 32 of bar 3 are connected with the upper surface of base rod 1 respectively, extension rod 2 is restricted under the recess 31 of two bars 3, the recess 31 of bar 3 only supplies extension rod 2 to rotate on the groove depth and can supply spacing component 5 to pass on the groove length, stop member 5 realizes the extension rod 2 fixed after withdrawing with the cooperation of the blend stop 3 after distributing, stop member 5 realizes the extension rod 2 fixed after stretching out with the cooperation of the blend stop 3 before distributing, and stabilizing mean 4 sets up on the upper surface of base rod 1 and is located the place ahead of the blend stop 3 before distributing.

In this embodiment, the stabilizing mechanism 4 is composed of two stabilizing blocks 41 symmetrically arranged on the upper surface of the base rod 1, one end surface of the two stabilizing blocks 41 is designed to be an arc surface 42 matched with the circumferential surface of the extension rod 2, and the two arc surfaces 42 are opposite to each other to form a stabilizing hole matched with the extension rod 2 and used for stabilizing the extension rod 2. The two arc-shaped surfaces 42 form a hoop structure to tightly hold the extension rod 2, so that the extension rod 2 cannot automatically rotate without external force.

In the present embodiment, the stop member 5 comprises two blocking posts 51 arranged in the same direction, the distance between the two blocking posts 51 is consistent with the width W1 of the barrier strip 3, and the diameter of the blocking posts 51 is smaller than that of the extension rod 2. The distance between the two blocking columns 51 is limited, so that the two blocking columns 51 can be used for clamping the barrier strip 3 to realize the length positioning of the extension rod 2; the requirement that the diameter of the blocking post 51 is smaller than the diameter of the extension rod 2 is to ensure that the blocking post 51 passes through the groove 31 of the bar 3.

In the embodiment, the groove depth of the groove 31 of the barrier strip 3 is 0.5-2 mm larger than the diameter of the extension rod 2, and the groove depth of the groove 31 of the barrier strip 3 is limited to ensure that the extension rod 2 flexibly rotates under the groove 31 of the barrier strip 3 under the action of external force and reduce the overall height of the barrier strip 3; the length L1 of the groove 31 of the barrier 3 is greater than the sum of the diameter of the extension rod 2 and twice the length L2 of the barrier post 51, and since the barrier post 51 is fixed on the circumferential surface of the extension rod 2, the barrier post 51 can pass through the groove 31 of the barrier 3 in order to rotate the extension rod 2 to the left or rotate the extension rod 2 to the right, thereby limiting the length of the groove 31 of the barrier 3.

In this embodiment, three limiting members 5 are distributed on the extension rod 2 along the length direction thereof, the arrangement directions of all the limiting members 5 are the same, and the rear limiting member 5 is matched with the barrier strips 3 distributed behind after the extension rod 2 is completely retracted. The plurality of limiting members 5 are respectively matched with the baffle strips 3 which are distributed in front, so that the extending lengths of the extending rods 2 can be different, and the extending lengths of the extending rods 2 can be changed; the arrangement directions of all the limiting components 5 are set to be the same direction, so that the operation and the use are more convenient; after the extension rod 2 is completely retracted, the extension rod 2 is fixed by using a limiting component 5, so that the extension rod 2 does not move under the action of external force.

In the present embodiment, for any one of the components, the longer length is defined as the length direction.

Claims

1. A telescopic structure is characterized in that an article outer casing is used as a base rod and comprises an extension rod, two baffle strips with a concave-shaped structure and a stabilizing mechanism for stabilizing the extension rod when the extension rod extends and retracts, the extension rod is attached to and placed on the upper surface of the base rod, the length direction of the extension rod is consistent with that of the base rod, at least one limiting member is arranged on the extension rod, the two baffle strips are arranged on the upper surface of the base rod in a front-back parallel mode in a mode that grooves face down, the length direction of the baffle strips is consistent with the width direction of the base rod, the extension rod is limited under the grooves of the two baffle strips, the grooves of the baffle strips only allow the extension rod to rotate on the groove depth and can allow the limiting member to pass on the groove length, the stop member with distribute after the blend stop cooperation realize the extension rod withdraw after fixed, stop member with distribute in the front the blend stop cooperation realize the extension rod stretch out after fixed, stabilizing mean set up in the upper surface of base rod on and be located and distribute in the front the place ahead of blend stop.

2. The telescopic structure according to claim 1, wherein the stabilizing mechanism comprises two stabilizing blocks symmetrically arranged on the upper surface of the base rod, one end surface of each of the two stabilizing blocks is designed to be an arc-shaped surface matched with the circumferential surface of the extension rod, and the two arc-shaped surfaces are opposite to each other to form a stabilizing hole which is matched with the extension rod and used for stabilizing the extension rod.

3. A telescopic structure according to claim 1 or 2, wherein said stop member comprises two co-located stop posts, the spacing between said two stop posts corresponding to the width of said barrier strip, the diameter of said stop posts being smaller than the diameter of said extension rod.

4. A telescopic structure according to claim 3, wherein the groove depth of the groove of the barrier is 0.5 to 2 mm greater than the diameter of the extension rod.

5. A telescopic structure according to claim 4, wherein the length of the notch of the bar is greater than the sum of the diameter of the extension rod and twice the length of the blocking post.

6. The telescopic structure according to claim 5, wherein a plurality of limiting members are distributed on the extension rod along the length direction thereof, the arrangement directions of all the limiting members are the same, and one of the limiting members is matched with the barrier strips distributed behind the extension rod after the extension rod is completely retracted.