TWM560539U - Telescopic rod device with adjustable length - Google Patents

Abstract

An adjustable length telescopic rod device comprises an outer tube member, a multi-rod unit and a positioning unit. The multi-rod unit has a first folding lever and at least one second folding lever. The first and second folding levers have the same outer diameter, and the positioning unit comprises a linkage rope, a positioning component and a clamping system. And pulling the outer pipe member and the first folding bar relative to each other, and the connecting wire is slid and the card member and the positioning member are mutually engaged or separated from each other, and the card member and the positioning member are mutually engaged When the outer tube member and the multi-segment rod unit are connected to each other in an unfolded state, when the clamping member and the positioning member are away from each other, the first and second folding rods of the multi-segment rod unit are received relative to the outer tube member. Folded and juxtaposed.

Description

Adjustable length telescopic rod device

The present invention relates to a telescopic rod, and more particularly to an adjustable length telescopic rod device.

As shown in FIG. 1 and FIG. 2 , a conventional multi-section telescopic rod that can be folded includes a hollow upper tube 1 and a first lower tube 2 slidably inserted into the upper tube 1 . A plurality of second lower tubes 3, a linked rope 4, and a card forming unit 5 are connected in series. The upper tube 1 is externally sleeved with a grip 6, and a first end tube 2 is provided with a through hole 201 at the proximal end.

The connecting rope 4 is disposed inside the upper tube 1, the first lower tube 2 and the second lower tube 3, and has a first end 401 fixed to the top of the upper tube 1, and a opposite to the first One end 401 is fixed to the second end 4() 2 at the top end of the second lower tube 3 farthest from the upper tube 1. The card forming unit 5 has a positioning seat 501 fixed to the top end of the first lower tube 2, a spring piece 502 connected to the positioning seat 501, and a bayonet 503 fixed to the end of the elastic piece 502.

When the upper tube 1, the first lower tube 2, and the second lower tubes 3 are sleeved into each other in an unfolded state (as in the state of FIG. 1), the interlocking rope 4 is in a straight state and has a larger state. Tension, the bayonet 503 of the card-making unit 5 can be extended in the through-hole 201, and the telescopic rod is in a state of use having the largest length.

When the user presses the bayonet 503, the tension of the linkage cord 4 is released, so that the bayonet 503 is offset from the perforation 201. At this time, the operator can contract the first lower tube 2 toward the inside of the upper tube 1. The second lower tube 3 can be detached from the first lower tube 2, and the second lower tubes 3 can also be separated from each other, and the first lower tube 2 can be separated from each other. The upper tube 1 is internally retracted, and the second lower tubes 3 are parallel to the upper tube 1 in parallel (not shown).

When the first lower tube 2 is pulled out from the outside of the upper tube 1, the second lower tube 3 and the first lower tube 2 can be connected in series in a straight rod shape until the carding unit 5 The bayonet 503 is extended in the through hole 201, and the telescopic rod is returned to the use state having the maximum length.

Although the above-mentioned telescopic rod can achieve the purpose of folding, when the folding is to be performed, the operator must press the bayonet 503 with a finger, and because the tension of the interlocking rope 4 is released, the bayonet 503 is When the perforation 201 is staggered, the finger is easily pinched by the joint of the upper tube 1 and the first lower tube 2.

Accordingly, it is an object of the present invention to provide an adjustable length telescopic rod assembly that is relatively convenient and safe to operate in a folded manner.

Therefore, the novel adjustable length telescopic rod device comprises an outer tube member, a multi-rod unit and a positioning unit. The outer tubular member is hollow tubular and extends along an axis and includes an inner bore disposed along the axis. The multi-rod unit has a first folding lever and at least one second folding lever, the first and second folding levers have the same outer diameter, and can be sleeved along the axis to be in an unfolded state, and a foldable state that can be separated from each other and folded in a side shape with respect to the outer tubular member. When the first and second folding levers are in an unfolded state, the first folding lever can extend in the inner hole of the outer tubular member. in. The positioning unit includes a linkage rope disposed in the outer tubular member and the multi-section rod unit, a positioning member fixed to the first folding rod, and a movably disposed in the first folding rod a clamping member having a first end fixed to the outer tubular member and a second end opposite the first end, the second end being coupled to the second folding rod farthest from the outer tubular member And the connecting rope is slidably passed through the positioning member and is connected to the clamping member. When the first and second folding levers are in the unfolded state, the clamping member is snap-connected with the positioning member, and the clamping member is engaged. The piece is positioned relative to the multi-joint rod unit, and the gripping rod is away from the positioning member when the folding rod is in the foldable state.

The utility model has the following advantages: using the outer tube member, the multi-section rod unit and the positioning unit to form an integral structure, the operation only needs to operate the outer tube member and the first folding rod to pull outward in the opposite direction, The transition between the unfolded state and the foldable state is convenient, and the risk of pinching the finger is avoided, and the first and second ends are utilized. The folding rod has the same outer diameter, and the first folding rod can be extended in the inner hole of the outer tube member, and the main rod member of the telescopic rod only needs to be made into two outer diameter sizes, and the component type is simplified.

10‧‧‧External fittings

L‧‧‧ axis

423‧‧‧ positioning teeth

424‧‧‧Chute

11‧‧‧ 内孔

20‧‧‧Multi-bar unit

21‧‧‧First folding lever

22‧‧‧Second folding lever

221‧‧‧ main body

222‧‧‧ joints

223‧‧‧ head end

30‧‧‧ grip

40‧‧‧ Positioning unit

41‧‧‧ linkage rope

411‧‧‧ first end

412‧‧‧ second end

413‧‧‧Upper node

413’‧‧‧ Lower node

414‧‧‧Upper positioning block

415‧‧‧ positioning block

42‧‧‧ Positioning parts

421‧‧‧ tube hole

422‧‧‧ Inner torus

425‧‧‧ crown

426‧‧‧guides

427‧‧‧stops

428‧‧‧ Guide slot

429‧‧‧Guide

43‧‧‧ Guides

431‧‧‧ Straight Tube Department

432‧‧‧掣部

433‧‧‧ Guide block

434‧‧‧ Guideline

44‧‧‧Card parts

441‧‧‧ wall

442‧‧‧ card ribs

443‧‧‧through holes

444‧‧‧Bevel

45‧‧‧ pipe plugs

451‧‧‧ round hole

46‧‧‧Flexible parts

50‧‧‧ quick release group

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a combined sectional view of a conventional telescopic rod device; FIG. 2 is a partial enlarged view of FIG. 1; FIG. 4 is an exploded perspective view of an embodiment of the present invention; FIG. 5 is an exploded perspective view of the embodiment; FIG. 5 is an incomplete perspective view of the embodiment; 1 is an incomplete planar exploded view; FIG. 7 is a schematic cross-sectional view of the embodiment; FIG. 8 is a partially enlarged schematic view of FIG. 7; FIG. 9 is a schematic view of a planar unfolding operation of the embodiment, illustrating a card FIG. 10 is a schematic view showing another state in which the positioning member is in a state of being positioned relative to a positioning member; FIG. 10 is a schematic view showing another state in which the guiding member pushes the card member to be lifted relative to the positioning member; 11 is a schematic diagram of another operation of the embodiment, illustrating that the card member is in a state of sliding downward relative to the positioning member; Figure 12 is a schematic view showing the completion of one of the embodiments.

Referring to FIG. 3, FIG. 4 and FIG. 7, an embodiment of the adjustable length telescopic rod device comprises an outer tube member 10, a multi-rod unit 20, and a set of grips 30 disposed outside the outer tube member 10. , a positioning unit 40, and a quick release group 50.

The outer tubular member 10 has a hollow straight tubular shape and extends along an axis L and includes an inner bore 11 disposed along the axis L.

The multi-rod unit 20 has a first folding lever 21 that can be retracted or extended relative to the outer tube member 10, and a second plurality of sleeves that can be sleeved or disassembled relative to the first folding rod 21. The folding rod 22 has the same outer diameter, and the first folding rod 21 has a hollow straight tubular shape with two ends permeable, and the second folding rod 22 can be along the axis L lie to each other, or can be detached from each other in a juxtaposition shape, and a second folding lever 22 adjacent to the first folding lever 21 can be sleeved with the first folding lever 21 along the axis L (for example) As shown in FIG. 7 , it may be detached from the first folding lever 21 in a juxtaposition (as shown in FIG. 12 ). The second folding rods 22 each have a hollow straight tubular main body 221 which is open at both ends, and a sleeve joint 222 fixed to the top of the main rod body 221, and the outer diameter of the sleeve joint 222 is smaller than The main rod body 221 can be disposed inside the adjacent first folding rod 21 or the second folding rod 22, and has a conical head end 223, and the head end 223 can be used to make two adjacent ends. The sleeve joint 222 of the second folding lever 22 and the main rod body 221 can be easily socketed.

With reference to FIG. 5, FIG. 6 and FIG. 8, the positioning unit 40 includes a linking rope 41 that is disposed in the outer tubular member 10 and the multi-segment unit 20, and a positioning member 42 that is movably disposed in the first a guiding member 43 in a folding lever 21, a locking member 44 rotatably guided by the guiding member 43 and rotating around the axis L, a pipe plug member 45 plugged on the top of the positioning member 42, and A resilient member 46 is provided between the plug member 45 and the clip member 44 and provides a resilient force of the clip member 44.

The interlocking rope 41 adopts a continuously extending nylon rope, and has a first end 411 fixed to the top of the outer tubular member 10, a second end 412 opposite to the first end 411, and disposed at the first end 411 and the An upper node 413 and a lower node 413' disposed between the second ends 412 and spaced apart, an upper positioning block 414 that can be locked to the upper node 413, and a lockable positioning on the lower node The lower positioning block 415 of the point 413' is fixed to the top of a second folding lever 22 farthest from the first folding lever 21.

The positioning member 42 is fixed to the top end of the first folding rod 21 adjacent to the outer tube member 10 and has a hollow tubular shape, and has a tube around the axis L and can form a tube for the connecting rope 41 to pass through. An inner annular surface 422 of the hole 421, a plurality of positioning teeth 423 surrounding the axis L and protruding from the inner annular surface 422 toward the axis L, and a plurality of sliding grooves 424 each having a sliding between each two positioning teeth 423 a slot 424, and each of the positioning teeth 423 has a crown portion 425 that is inclined about the axis L and corresponds to the outer tube member 10, and is disposed between the crown portion 425 and the adjacent slot 424 and surrounds the slot portion 425. a guide portion 426 having an inclined axis L is disposed between the crown portion 425 and the guide portion 426 and parallel to the shaft A stop portion 427 of the line L, and a guide groove 428 parallel to the sliding grooves 424 and connectable to the crown portion 425, the crown portions 425 are inclined in the same direction as the guide portions 426. In addition, the positioning teeth 423 each have a guiding portion 429 disposed opposite to the crown portions 425 and having a V shape.

The guiding member 43 is slidably disposed in the tube hole 421 along the axis L, and has a straight tube portion 431, a plurality of swaying portions 432 surrounding the axis L and disposed at the top of the straight tube portion 431, and a plurality of Guide blocks 433 protruding from the straight tube portions 431 and slidable along the guide grooves 428, respectively, and the tilting portions 432 are inverted V-shaped, each having a pair of guiding surfaces 434 that are V-shaped. The lower positioning block 415 can abut against the bottom of the straight tube portion 431.

The clamping member 44 has a hollow wall 441 and a plurality of engaging ribs 442 extending around the axis L and protruding from the tube wall 441. The tube wall 441 can define a thread for the linking rope 41 to be worn. The upper positioning block 414 is disposed at the top of the through hole 443 and is fixed to the tube wall 441. Each of the bottoms of the clamping ribs 442 has a corresponding corresponding to the crown portion 425 and the guide roller 425. The inclined portion 444 of the portion 426.

The plug member 45 has a circular hole 451 extending along the axis L and through which the interlocking cord 41 can pass.

The quick release group 50 is sleeved at the sleeve of the outer tube member 10 and the first folding rod 21, so that the first folding rod 21 can be locked and positioned relative to the outer tube member 10.

As shown in FIG. 7 , FIG. 8 and FIG. 9 , the state in which the whole length of the telescopic rod device of the adjustable length is completed is completed, and the first and second folding levers 21 , 22 are sleeved along the axis L and are respectively An unfolded state. At this time, the inclined portions 444 at the bottom ends of the engaging ribs 442 of the engaging member 44 respectively abut against the crown portions 425, and the side edges of the engaging ribs 442 abut against the corresponding stopping portions 427. . At this time, the interlocking rope 41 located between the upper node 413 and the second end 412 is linear and has a large tension state (the interlocking rope between the upper node 413 and the first end 411) 41 is in a relaxed or tensioned state with respect to the extent of the first folding lever 21 with respect to the extension or retraction of the outer tubular member 10. The locking member 44 and the positioning member 42 are in a snap-fit connection. The member 44 produces a position relative to the multi-segment unit 20.

When the multi-joint lever unit 20 is in the unfolded state, the first folding lever 21 can be adjusted to extend or retract relative to the outer tubular member 10 by operating the quick-release group 50, and the telescopic rod device can be adjusted. The length of use, after adjustment, operate the quick release group 50 to lock the positioning.

When the user wants to fold the telescopic rod device, the operator first operates the quick release group 50 in a loose state, and then operates the grip 30 (and the outer tube member 10) and the first folding rod 21 Pulling outward in the opposite direction, at this time, because the upper node 413 of the interlocking rope 41 is positioned relative to the clamping member 44, and the second end 412 is fixed to the first portion farthest from the first folding lever 21. The top of the folding lever 22 is closed, and the lower positioning block 415 is locked and positioned by the lower positioning block 415, and the lower positioning block 415 is again pressed against the straight tube. The bottom portion of the portion 431 and the like act to pull the interlocking rope 41, the guide member 43 and the engaging member 44 while pulling the grip 30.

As shown in FIG. 10 and in conjunction with FIG. 8 , the guiding member 43 is pulled by the interlocking rope 41 , and the lifting portion 432 can be used to push the clamping member 44 upward relative to the positioning member 42 . And the beveled portion 444 at the bottom end of the carding ribs 442 is away from the crown portions 425, and the carding ribs 442 are also away from the corresponding blocking portions 427 (at this time, the elastic member 46 is The slanted surface 444 at the bottom end of the rib 442 is guided by the guiding surface 434, and generates a rotational displacement about the axis L, and the operation releases the linkage. When the tension of the rope 41 is pulled, the engaging ribs 442 are guided by the guiding portions 426 to smoothly fall into the sliding grooves 424, and the spring force released by the elastic member 46 is used to make the guiding 掣The member 43 is moved downward and separated from the card member 43 (state shown in Fig. 11). At this time, the tension of the interlocking rope 41 disappears, the second folding levers 22 can be detached from the first folding lever 21, and the second folding levers 22 can also be detached from each other, and the second folding levers 22 can be detached from each other. The first folding lever 21 and the second folding lever 22 can be folded into a juxtaposition with respect to the outer tubular member 10 and in a collapsible state (see FIG. 12).

When the multi-rod unit 20 is to be changed from the collapsible state to the unfolded state, the operator operates the grip 30 and the first folding lever 21 to pull outward in the opposite direction, and the lower portion of the interlocking rope 41 is utilized. The node 413' pushes the bottom of the guiding member 43 and the locking ribs 442 are smoothly inserted into the sliding slots 424 by the guiding portion 429, and the protruding portions 432 will again The clamping member 44 is pushed up, and the bottom ends of the clamping ribs 442 The inclined surface portion 444 is guided by the guiding surfaces 434 to generate a rotational displacement about the axis L, and when the pulling force of the connecting rope 41 is released, the engaging ribs 442 will fall smoothly. The toothed crowns 425 are restored to a greater tension state and can be restored to the expanded state of FIGS. 7, 8, and 9.

Therefore, the telescopic rod device of the novel adjustable length can be switched between the unfolded state and the collapsible state by operating the grip 30 and the first folding lever 21 in the reverse direction, and the operation is quite convenient. Avoid the risk of finger sticking.

Furthermore, the first and second folding bars 21, 22 have the same outer diameter, and the first folding bar 21 can be extended in the inner hole 11 of the outer tube member 10, and the main rod of the telescopic rod is only It is necessary to make two outer diameter sizes, which not only simplify the component type, but also facilitate the manufacture, and also reduce the inconvenience of the management of the material. In summary, the new adjustable length telescopic rod device can truly achieve the new type. The purpose.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

Claims (7)

An adjustable length telescopic rod device comprising: an outer tubular member having a hollow tubular shape extending along an axis and including an inner bore disposed along the axis; a multi-rod unit having a first folding lever; At least one second folding lever, the first and second folding levers have the same outer diameter, and can be sleeved along the axis in an unfolded state, and can be separated from each other and folded in a side shape with respect to the outer tubular member. The first folding lever can be extended in the inner hole of the outer tubular member when the first and second folding levers are in the unfolded state; and a positioning unit includes a threaded outer a connecting piece of the pipe member and the multi-joint bar unit, a positioning member fixed to the first folding bar, and a clamping member movably disposed in the first folding bar, the connecting rope has a fixing At a first end of the outer tubular member, and a second end opposite the first end, the second end is coupled to a second folding rod that is furthest from the outer tubular member, and the linked rope is slidably passed through The positioning member is connected to the clamping member, and the first and second folding levers are in an unfolded state The first and second folding rods can be positioned relative to each other, and the clamping member is snap-connected with the positioning member, and the clamping member is positioned relative to the multi-joint rod unit, and the folding rods are in a foldable state. The card member is away from the positioning member. The adjustable length telescopic rod device of claim 1, wherein the interlocking rope can be pulled when the outer tubular member is operated in the opposite direction and outwardly with respect to the first folding lever, and the locking can be made The piece and the positioning member are changed from the carded connection state to the distant state, and the first and second folding levers are also operable to be in a foldable state by the unfolded state. The adjustable length telescopic rod device of claim 2, wherein the positioning unit further comprises a guide member movably disposed in the first folding lever, and a tube plugged on the top of the positioning member a plug member and an elastic member capable of pushing the card member to be displaced relative to the positioning member, the elastic member resiliently abutting between the pipe plug member and the card member and providing the card member An elastic elastic member, the linkage rope can interlock the guiding member, and the clamping member is engaged with the positioning member, and the clamping member can be moved away from the positioning member. The adjustable length telescopic rod device according to claim 3, wherein the positioning member of the positioning unit has a hollow tubular shape and has an inner ring surrounding the axis and forming a tube hole through which the interlocking rope is bored. a plurality of positioning teeth surrounding the axis and protruding from the inner ring surface toward the axis, and a plurality of sliding slots, each of the two positioning teeth being provided with a sliding slot, and each of the positioning teeth has a surrounding a crown portion having an inclined axis, a guide portion disposed between the crown portion and the adjacent chute and inclined around the axis, and a guide portion disposed between the crown portion and the guide portion a blocking portion parallel to the axis, and a guiding groove parallel to the sliding grooves and connectable to the crown portion, the crown portions are inclined in the same direction as the guiding portions, and the guiding member can be Slidingly passing through the tube hole along the axis, and having a straight tube portion, a plurality of tilting portions surrounding the axis and disposed at the top of the straight tube portion, and a plurality of protruding portions are respectively disposed on the straight tube portion and respectively a guide block that slides in a guide groove, the tilting portions are inverted V-shaped, each having a pair of V-shaped joints The clamping member has a hollow tube wall and a plurality of engaging ribs surrounding the axis and protruding from the tube wall, the tube wall defining a through hole through which the linking rope can be inserted The bottoms of the card ribs each have a slope portion corresponding to the crown portion and the guide portion. When the outer tube member and the first folding rod are pulled outward in opposite directions, the linkage rope drives the guide. Displacement of the jaw along the axis, the guide member pushing the card member upwardly relative to the positioning member, and the inclined portion at the bottom end of the carding ribs is away from the crown portions, the carding The inclined surface of the bottom end of the rib is guided by the guiding surfaces, and a rotational displacement is generated around the axis. When the pulling force of the connecting rope is released, the engaging ribs are guided by the guiding portions. Smoothly falling into the chutes, and utilizing the elastic force of the elastic member to release the elastic member, the clamping member is moved downward and separated from the positioning member, the first folding lever and the second folding lever The outer tubular member can be folded into a juxtaposition and can be folded in a folded state. The adjustable length telescopic rod device of claim 4, wherein the positioning teeth of the positioning unit each further have a V-shaped guiding portion opposite to the crown portions, the cards The top of the ribbed is smoothly inserted into the chute by the action of the guiding portion. The adjustable length telescopic rod device of claim 5, wherein the linkage cord further has an upper node and a lower node disposed between the first end and the second end and spaced apart An upper positioning block positioned at the upper node and a lower positioning block positioned to be positioned at the lower node, the upper positioning block being fixed to the tube wall, the lower positioning block being capable of resisting Straight tube bottom. The adjustable length telescopic rod device according to claim 1, further comprising a quick release group disposed at the sleeve of the outer tube and the first folding rod, and the quick release group is operable to make the first collection The folding bar is stretched and retracted relative to the outer tubular member, and the locking position is generated after expansion and contraction.