JP3221773U - Expansion tube structure that can improve load - Google Patents

Abstract

To provide a telescopic tube structure capable of improving load. SOLUTION: A collar 30 is provided at the insertion end of the outer pipe 10 of the telescopic pipe, which enables tight fixation of the inner pipe, and double fixing with the inner and outer pipes is made near the top edge of the inner pipe. A pressure adjustment device for enabling the pressure adjustment device, the pressure adjustment device including a push and pull operation member, a pipe covering member 50, a tension bar member 60, and an abutment block, and the inner pipe 20 is provided by the abutment block. The outer tube is fixed by causing tension to be pulled outward with respect to the pulley 62 pivotally attached to the bottom end of the drawbar member, while the outer tube is fixed. The expansion and contraction of the outer pipe adjustably, because it can be confirmed that the expansion and contraction tube does not lead to an element which becomes unreliable in fixation due to excessive load and wear of the collar, Improve the fixed mass of the tube. [Selected figure] Figure 1

Description

  The present invention provides the technical field of telescopic tubes, and in particular provides the design of telescopic tube structures that can be load-boosted.

  Conventional uses of telescopic tubes are very extensive, for example, used for telescopic stands and hanging stands that can be adjusted in height, and both of them are used to tighten the inner pipe to the inserted end of the outer pipe of the telescopic pipe. However, there is a disadvantage that the load may not be determined due to entanglement of factors such as the limit of the load of the collar and wear due to use.

  The object of the present invention is to add the pressure adjustment device for the inner and outer pipes, which enables double fixing to the existing fixing collar of the expandable pipe, so that the expandable pipe is caused by excessive load and wear of the collar. An object of the present invention is to provide a telescopic tube structure which can be confirmed that it does not lead to an element which becomes unstable and which can be improved in load which is not likely to slip off.

  In order to achieve the above object, the present invention provides a telescopic tube structure capable of improving the load, and has a collar which enables the inner pipe to be tightened at the insertion end of the outer pipe of the telescopic pipe. A pressure adjusting device is provided near the top edge of the inner pipe so as to enable double fixing with the inner and outer pipes, and the pressure adjusting device includes a push and pull operation member, a pipe covering member, and a pulling rod. And a contact block.

  The abutment block is pivotally attached to the bottom end of the inner tube at the bottom end of the inner tube, and generates tension to pull outward from the pulley pivoted to the bottom end of the drawbar member, thereby making the inner and outer tubes The fixed mass of the telescopic tube can be improved by adjusting or stretching the outer tube adjustably while being fixed or exhibiting internal contraction.

1 is an exploded perspective view of the present invention. FIG. 2 is a cross-sectional view showing a state of tension fixation of the present invention. FIG. 2 is a cross-sectional view of the adjustable state of the present invention.

  As shown in FIGS. 1 to 3, in the telescopic tube structure capable of improving the load according to the present invention, a collar 30 which enables tight fixation of the inner pipe 20 to the insertion end of the outer pipe 10 of the telescopic pipe A. And a pressure adjusting device for enabling double fixing of the inner pipe 20 and the outer pipe 10 in the vicinity of the top edge of the inner pipe 20, and the pressure adjusting device comprises a push and pull operation member 40. , A tube covering member 50, a pull rod member 60, and an abutment block 70.

  The push and pull operation member 40 comprises a pivot seat 41 and a push and pull button 42, and the pivot seat 41 is fixed to the opening 21 at the side near the top edge of the inner pipe 20, and the push and pull button 42 is pivoted therein. A through extension 410 is provided corresponding to the opening 21 for wearing, the inner end of the push-push button 42 extends into the inner pipe 20, the outer end of which protrudes out of the inner pipe 20, and this embodiment In the second embodiment, pivoting ears 411 are provided on both sides of the through-opening 410 of the pivot seat 41, and pivoted with a pivoting ear 411 of the pivot seat 41 via a pivot 43 at the middle of the push button 42. A mounting hole 420 is provided, the inner end of which is an extension abutment 422 with a notch groove 421, the outer end of which is formed in an upwardly directed arc-concave handle 423.

  In the pipe covering member 50 provided at the pipe port of the inner pipe 20, the inner sleeve 51 and the outer sleeve 52 are stacked on each other, and the elastic member 53 is juxtaposed in the inside, and in the present embodiment The top of the outer sleeve 52 is an open end having an abutting edge 520, the locking slot 521 is juxtaposed in the outer sleeve 52, and the bottom of the outer sleeve 52 is a closed end having a through hole 522. An annular recessed seat 523 is convexly provided in the through hole 522 of the closed end, the top of the inner sleeve 51 is a closed end having a lid edge 510, the bottom is an open end, and the body of the inner sleeve 51 The annular sleeves 511 opposed to the locking slots 521 are juxtaposed, so that the inner sleeve 51 and the outer sleeve 52 are fixed to overlap each other. The elastic member 53 is a compression spring, and is accommodated between the annular concave seat 523 at the closed end of the outer sleeve 52 and the inner sleeve 51.

  A washer 61 for pressing the elastic member 53 is tightened at an end point where one end of the tension bar member 60 extends into the pipe covering member 50, and the other end extends from the bottom end port of the inner pipe 20. And a stop piece 63 is fixed at a position where the pull rod member 60 is positioned on the push button 42 of the push and pull operation member 40 and is provided at the inner end of the push button 42 The extension abutment 422 is located at the upper edge of the abutment piece 63, and the notch groove 421 of the extension abutment 422 is provided just for the through extension of the rod 64 of the pull rod member 60. Be done.

  The abutment block 70 is pivotally attached to the bottom of the inner tube 20 at the bottom of the inner tube 20 so as to be exposed to the outside, and one side of the tension bar member 60 that can abut on the pulley 62 has a flat abutment surface 71 In the present embodiment, the parallel side pieces 72 are provided on both sides of the flat abutment surface 71 of the abutment block 70, and the bottom end of the inner pipe 20 near the top edge of the two parallel side pieces 72. There is provided a pivot hole 73 pivotally mounted via the plug member 23 together with the radial through hole 22 at the pipe port, and the flat contact surface 71 from the end of the pivot hole 73, the rod body of the tension rod member 60 A groove slot 74 is opened which just allows 64 penetrations.

  Thus, according to the assembly of the above-mentioned constituent members, the upper end of the pull rod member 60 of the pressure adjustment device receives the abutting butting of the elastic member 53 in the pipe covering member 50, whereby the pull rod member 60 Since it has an elastic force which is upwardly butted in the normal state, the pulley 62 pivotally attached to the bottom end of the tension bar member 60 is brought into contact with the abutment block 70 pivotally attached to the bottom end of the inner tube 20. The inner tube 20 is stretched between the pulley 62 and the abutment block 70 by drawing tension against the flat abutment surface 71 of the abutment block 70 via the pulley 62 to draw tension outward. By applying a force, the positioning is performed so as to be pushed out so as to abut on the inner wall of the outer pipe 10 (see FIG. 2), and the user tries to adjust the height position of the telescopic pipe A. In the case, push and pull operation member 4 And the extension contact 422 of the inner end of the push button 42 presses the pull rod member 60 via the abutment piece 63 on the pull rod member 60. And the pulleys 62 at the bottom end are disengaged from abutting with the abutment block 70 (see FIG. 3), thus allowing the user to freely stretch the inner tube 20 up and down in the outer tube 10 After reaching the height of the telescopic tube A which the user attempted to adjust, the push button 42 can be released to return to the fixed state.

  Advantageously, the greater the pressing force received by the inner tube 20 of the telescopic tube A of the present application, the pressure with which the abutment block 70 pivoted on its bottom end contacts the pulley 62 of the drawbar member 60 As the weight received increases, the tension force between the inner pipe 20 and the outer pipe 10 also increases, so that the tension force between the inner pipe 20 and the outer pipe 10 increases. It can be ensured that the fixation between the tube 10 is even tighter.

A Telescopic tube 10 Outer tube 20 Inner tube 21 Opening 22 Radial direction through hole 23 Plug member 30 Collar 40 Push and pull operation member 41 Pivot seat 410 Through extension port 411 Pivot 42 Push and pull button 420 Pivot hole 421 Notch groove 422 extension abutment portion 423 arc concave handle portion 43 pivot shaft 50 pipe covering member 51 inner sleeve 510 lid edge 511 annular convex edge 52 outer sleeve 520 abutment edge 521 locking slot 522 through hole 523 annular concave seat 53 elastic member 60 tension bar Member 61 Washer 62 Pulley 63 Stop piece 64 Bar 70 Contact block 71 Flat contact surface 72 Parallel side piece 73 Pivot hole 74 Groove slot

The push and pull operation member 40 comprises a pivot seat 41 and a push and pull button 42, and the pivot seat 41 is fixed to the opening 21 at the side near the top edge of the inner pipe 20, and is pushed to the inside of the pivot seat 41. A through extension 410 is provided corresponding to the opening 21 for pivotally attaching 42, the inner end of the push button 42 extends into the inner tube 20, and the outer end of the push button 42 is the inner tube 20. In the present embodiment, pivoting ears 411 are provided on both sides of the through extension port 410 of the pivot seat 41, and the pivot 43 together with the pivoting ear 411 of the pivot seat 41 in the middle of the push button 42. There is provided a pivot hole 420 which is pivotally mounted, and the inner end of the push-push button 42 is an extension abutment 422 having a notch groove 421, and the outer end of the push-push button 42 is an arc concave handle facing upward. 423 is formed.

A washer 61 for pressing the elastic member 53 is tightened at an end position where one end of the pull rod member 60 extends into the pipe covering member 50, and the other end of the pull rod member 60 extends from the bottom end port of the inner tube 20. At the same time, the pulley 62 is pivotally mounted, and the stop piece 63 is fixed at a position where the pull rod member 60 is positioned on the push and pull button 42 of the push and pull operation member 40. The extension abutment 422 provided at the inner end is located at the upper edge of the abutment piece 63, and the notch groove 421 of the extension abutment 422 extends through the rod 64 of the pull rod member 60. Provided just for you.

Claims (7)

A telescopic tube structure capable of improving load, comprising a collar enabling tight fixation of the inner tube at the insertion end of the outer tube of the telescopic tube, wherein the inner tube is located near the top edge of the inner tube And the outer pipe are provided with a pressure adjusting device which enables double fixing of the inner pipe and the outer pipe, and the pressure adjusting device includes a push and pull operation member consisting of a pivot seat and a push and pull button and a pipe opening of the inner pipe. A tube covering member provided, a tension bar member, and an abutment block,
The pivot seat is fixed to an opening at a side near the top edge of the inner pipe, and a through extension corresponding to the opening for pivoting the push button is provided in the inside, the push button An inner end of the inner pipe extends into the inner pipe, and an outer end of the inner pipe projects out of the inner pipe;
An elastic member is juxtaposed on the inside of the pipe covering member in which an inner sleeve and an outer sleeve are mutually stacked.
One end of the draw rod member extends into the pipe covering member and is abutted by the elastic member, and the other end extends from the bottom end port of the inner pipe, and a pulley is pivotally mounted, and the pull A stop piece is fixed at a position where the rod body of the bar member is positioned on the push and pull button of the push and pull operation member, and the inner end of the push and pull button is positioned on the upper edge of the stop piece;
The abutment block is pivotally attached to the end of the inner tube at the bottom end of the inner tube so as to be exposed to the outside, and one side of the pull rod member capable of abutting on the pulleys is formed into a flat abutment surface A telescopic tube structure capable of improving load, characterized in that.   Pivot ears are provided on both sides of the through-opening of the pivot seat, and a pivot hole is provided in the middle of the push-pull button and pivoted through the pivot with the pivot ear of the pivot seat. The loadable expandable tube according to claim 1, characterized in that the inner end is a stretched abutment with a notched groove, and the outer end is formed in an upward arc-concave handle. Construction.   The top of the outer sleeve of the tube covering member is an open end having an abutting edge, and a locking slot is juxtaposed in the outer sleeve, and the bottom of the outer sleeve is a closed end having a through hole, An annular recessed seat is convexly provided in the through hole of the closed end, the top of the inner sleeve is a closed end having a lid edge, the bottom is an open end, and the locking slot in the body of the inner sleeve The load can be improved according to claim 1, characterized in that the inner sleeve and the outer sleeve are fixed by overlapping each other by arranging annular convex edges facing each other. Telescopic tube structure.   The loadable expandable tubular structure according to claim 1, wherein the elastic member is a compression spring.   The load-improvable expandable tube structure according to claim 1, wherein a washer for pressing an elastic member is tightened to an end point where the pull rod member extends into the tube covering member.   An extension contact portion is provided at an inner end of the push-pull button, and the extension contact portion is positioned at an upper edge of the contact bar of the pull rod member, and the extension contact portion The loadable telescopic tube structure according to claim 1, characterized in that a notch groove is provided to extend through the rod.   Parallel side pieces are provided on both sides of the flat abutment surface of the abutment block, and a plug member along with a radial through hole at the bottom of the inner pipe near the top edge of the two parallel side pieces. The flat contact surface is provided with a pivot hole, and the flat contact surface is provided with a groove slot opened from the pivot hole end, which just allows the extension of the rod body of the pull rod member. A telescopic pipe structure capable of improving the load according to claim 1.

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