Lifting rod device and rollator with lifting rod device and capable of lifting handle

Abstract

The utility model discloses a lifting rod device and a rollator with the lifting rod device and capable of lifting a handle. The lifting rod device comprises a telescopic rod and a lifting adjusting group. The telescopic rod comprises an outer pipe and an inner pipe. The inner tube has a plurality of recesses. The lifting adjusting set comprises a fixing base, a transverse push rod, a push block, at least one elastic piece and a pulling piece. And the transverse push rod is arranged on the fixed seat and the outer pipe. The transverse push rod has a length in a second direction and a width in a third direction. And the transverse push rod is pressed into and clamped in one of the concave parts of the inner pipe along the third direction. At least one elastic piece can be elastically pressed between the push block and the transverse push rod in the third direction and constantly pushes the transverse push rod to be clamped in the inner pipe. And the pulling piece is used for driving the push block to move along the third direction. The transverse push rod is clamped in the concave part of the inner pipe in a large area in the length direction, the joint area is large, and shaking is not prone to occurring.

Description

TECHNICAL FIELD

[0001] The utility model relates to a telescopic system of a rod, in particular to a lifting rod device and a walking aid with the lifting handle height. BACKGROUND

[0002] The telescopic rod can be applied to the use requiring the height or length adjustment, for example but not limited to transport chair, walking aid, wheelchair, walking aid, rehabilitation equipment or sports equipment and the like.

[0003] A conventional telescopic rod has an outer tube, an inner tube and a spring buckle. The outer tube has a plurality of positioning holes spaced apart from each other. The spring buckle is installed between the inner tube and the outer tube and has a ball exposed from one of the positioning holes. By pressing the ball, the outer tube can be moved up and down, and after adjusting to the required height, one of the positioning holes is engaged with the ball of the spring buckle, which can be locked to achieve the effect of adjusting the height of the telescopic rod.

[0004] However, the telescopic rod only relies on the single-point engagement of the ball for positioning, and the engagement area is small, so the outer tube is easy to shake relative to the inner tube, and the stability is poor, which still has room for improvement. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a lifting rod device with large-area clamping and positioning.

[0006] The lifting rod device of the utility model comprises a telescopic rod and a lifting adjustment group. The telescopic rod comprises an outer tube and an inner tube capable of being telescopically extended relative to the outer tube in a first direction. The outer tube has a slot. The inner tube has a plurality of recesses spaced apart from each other in the first direction.

[0007] The lifting adjusting assembly is arranged on the telescopic rod and used to adjust the lifting of the telescopic rod. The lifting adjusting assembly comprises a fixed seat, a transverse push rod, a push block, at least one elastic member and a pulling member. The fixed seat is sleeved on one end of the outer tube and has a sleeve hole for the outer tube to pass through and a recessed chamber in communication with the sleeve hole and aligned with the slot of the outer tube. The transverse push rod extends along a second direction perpendicular to the first direction and is arranged in the recessed chamber of the fixed seat and the slot of the outer tube. The transverse push rod has a length in the second direction and a width in a third direction. The third direction is perpendicular to the first direction and the second direction. The length is greater than the width. The transverse push rod is pressed into and clamped in one of the recesses of the inner tube along the third direction. The push block is movably arranged in the fixed seat along the third direction. At least one elastic member is arranged between the push block and the transverse push rod along the third direction and constantly pushes the transverse push rod to be clamped and positioned in the inner tube. The pulling member is movably arranged in the fixed seat and used to drive the push block to move along the third direction.

[0008] The lifting rod device comprises two elastic members, the push block has two accommodating holes which are spaced apart from each other in the second direction and are respectively used for mounting the elastic members, one end of each elastic member is accommodated in the corresponding accommodating hole, and the other end of each elastic member is elastically abutted against the transverse push rod.

[0009] The push block has two push abutting protrusions which are spaced apart from each other in the first direction, each push abutting protrusion extends into the slot of the outer tube and faces the outer surface of the inner tube, and the transverse push rod is arranged between the push abutting protrusions.

[0010] The push block has a transverse groove for arranging the transverse push rod and a concave portion opposite to the transverse groove in the third direction, the pulling member has a cam portion pivotally arranged in the fixed seat and used for abutting against the concave portion, and a pulling portion outwardly extended from the cam portion.

[0011] The fixed seat has two base walls which are spaced apart from each other in the first direction and a surrounding wall connected to the base walls along the first direction, the sleeve hole and the recessed chamber are defined by the base walls and the surrounding wall, the surrounding wall has two embedding grooves located at the junction of the sleeve hole and the recessed chamber, and the embedding grooves are used for arranging the transverse push rod.

[0012] The slot of the outer tube has a groove main portion aligned with the recessed chamber of the fixed seat and two notch portions respectively extended from two opposite sides of the groove main portion, the notch portions are spaced apart from each other in the second direction and used for the transverse push rod to pass through.

[0013] The utility model discloses a rollable handlebar height of scooter.

[0014] The utility model discloses a rollable handlebar height of scooter, contain frame unit and two handlebar groups.

[0015] The frame unit includes slidable chassis and two aforementioned lifting rod devices, which are arranged at opposite sides of the chassis respectively. Each handlebar group has a handlebar installed on a corresponding telescopic rod and a brake for preventing the chassis from sliding.

[0016] The utility model discloses a rollable handlebar height of scooter, further contains a guard belt, and the guard belt is connected between the lifting rod devices.

[0017] The utility model discloses a rollable handlebar height of scooter, further contains an auxiliary unit, and the auxiliary unit is located between the handlebar groups and the chassis and connected between the lifting rod devices.

[0018] The utility model discloses a rollable handlebar height of scooter, and the frame unit further includes a linkage group connecting the chassis and the auxiliary unit, and the linkage group has a plurality of movable linkages, so that the rollable handlebar height of scooter can be folded and stored.

[0019] The utility model discloses a rollable handlebar height of scooter, and the frame unit further includes a linkage group connecting the chassis and the auxiliary unit, and the linkage group has a plurality of movable linkages, so that the rollable handlebar height of scooter can be folded and stored. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model discloses a rollable handlebar height of scooter, and the frame unit further includes a linkage group connecting the chassis and the auxiliary unit, and the linkage group has a plurality of movable linkages, so that the rollable handlebar height of scooter can be folded and stored.

[0021] Figure 1 It is the perspective drawing of the embodiment of the utility model discloses a rollable handlebar height of scooter.

[0022] Figure 2 It is a use schematic drawing, and one lifting rod device of the embodiment can be telescopic and adjusted height position.

[0023] Figure 3 It is the incomplete perspective drawing of the lifting rod device.

[0024] Figure 4 It is along Figure 1an incomplete cross-sectional side view taken along line IV-IV in

[0025] Figure 5 is an incomplete perspective view of the lift pole assembly showing a cross push rod mounted to a fixed base and an outer tube, and the cross push rod engaging a recess in an inner tube;

[0026] Figure 6 is an incomplete perspective exploded view of the lift pole assembly;

[0027] Figure 7 is an incomplete perspective exploded view of the lift pole assembly from another angle; Figure 6

[0028] Figure 8 is an incomplete cross-sectional view taken along line VIII-VIII in Figure 2 and a toggle is in a locked position;

[0029] Figure 9 is an incomplete perspective cross-sectional view showing the fixed base, a push block, a fixed rod, and the connection of the cross push rod of the lift pole assembly;

[0030] Figure 10 is an incomplete top view showing the relative positions of the outer tube, inner tube, and push block of the lift pole assembly;

[0031] Figure 11 is a cross-sectional view similar to Figure 8 but with the toggle in an unlocked position;

[0032] Figure 12 is an incomplete perspective view showing that the embodiment can be folded for storage, and a harness is omitted from the view. DETAILED DESCRIPTION

[0033] Referring to Figures 1 to 3 , the embodiment of the rollator with adjustable handle height comprises a frame unit 100, two handle sets 3, a harness 4, and an auxiliary unit 5. This embodiment is a rollator that can be used as a wheelchair. In addition to being used by the user to push and walk, it can also be used by the user to sit and be pushed by a caregiver, and it can be used as a transport chair.

[0034] ​The vehicle frame unit 100 includes a slidable base frame 11, two lifting rod devices 2 connected to the base frame 11 along a first direction Z, and a linkage 12 movably connected to the base frame 11. The base frame 11 has two base bars 111 spaced apart along a second direction X perpendicular to the first direction Z, and a plurality of wheel sets 112 rotatably mounted to the base bars 111. The base frame 11 is slidable along the ground by rotation of the wheel sets 112. In the present embodiment, the base frame 11 has four wheel sets 112, and is provided at the front and rear ends of each of the base bars 111 along a third direction Y. The third direction Y is perpendicular to the first direction Z and the second direction X. In the present embodiment, the first direction Z is the up-down direction, the second direction X is the left-right direction, and the third direction Y is the front-rear direction.

[0035] The lifting rod device 2 is provided at the base bar 111 on each of the left and right sides of the base frame 11. One of the lifting rod devices 2 is described in detail below.

[0036] The lifting rod device 2 includes an extension rod 21 extending upward from the corresponding base bar 111 along the first direction Z, and a lifting adjustment set 22 mounted to the extension rod 21 and used to adjust the lifting of the extension rod 21.

[0037] The extension rod 21 includes an outer tube 211, and an inner tube 212 movably inserted into the outer tube 211 and slidable up and down relative to the outer tube 211 along the first direction Z.

[0038] Referring to Figures 4 to 7 , the top end of the outer tube 211 has a slot 213 penetrating the inner and outer tube surfaces, and a positioning groove 214 lower than the slot 213 in the first direction Z. The slot 213 has a rectangular slot main portion 215, and two notch portions 216 extending from the left and right sides of the slot main portion 215, respectively. The notch portions 216 are spaced apart in the second direction X. Each of the notch portions 216 is semicircular. The positioning groove 214 extends left and right along the second direction X. The inner tube 212 has a plurality of recesses 217 on the outer surface and spaced apart in the first direction. Each of the recesses 217 does not penetrate the inner surface.

[0039] In the present embodiment, the inner tube 212 moves up and down on the top side of the outer tube 211 to adjust the lifting (i.e., height) of the extension rod 21. However, in some variations, the up and down positions of the inner tube 212 and the outer tube 211 can be interchanged, and the outer tube 211 can be moved relative to the inner tube 212, without being limited thereto.

[0040] The lifting adjustment set 22 includes a fixed seat 23, a fixed rod 24, a transverse push rod 25, a push block 26, at least one elastic member 27, and a pulling member 28. In the embodiment, the lifting adjustment set 22 includes two elastic members 27.

[0041] The fixed seat 23 is fixedly sleeved at the top end of the outer tube 211 and allows the inner tube 212 to movably penetrate. The fixed seat 23 has two base walls 231 spaced apart in the first direction Z and a surrounding wall 232 connecting the base walls 231 in the first direction Z. A sleeve hole 233 and a recess chamber 234 are defined by the base walls 231 and the surrounding wall 232. The sleeve hole 233 is sleeved with the outer tube 211 and in space communication with the slot 213. The recess chamber 234 is in space communication with the sleeve hole 233 and aligned with the slot base portion 215 of the slot 213 of the outer tube 211. Each of the base walls 231 has an axial hole 235 extending in the first direction Z. The surrounding wall 232 has two embedding grooves 236 at the junction of the sleeve hole 233 and the recess chamber 234. The embedding grooves 236 are respectively aligned with and in space communication with the notch portions 216 of the outer tube 211.

[0042] The fixed rod 24 extends in the second direction X and is installed in the fixed seat 23 and partially exposed from the sleeve hole 233. In the embodiment, the fixed seat 23 is fixed in the outer tube 211 by embedding the portion of the fixed rod 24 exposed from the sleeve hole 233 in the positioning groove 214 of the outer tube 211. However, in other variants, the fixed seat 23 can be installed in the outer tube 211 by screwing, riveting, buckling, pressing or other fixing methods, without being limited thereto.

[0043] Referring to Figure 5 , Figure 6 and Figure 8 , the transverse push rod 25 extends in the second direction X and is installed in the recess chamber 234 of the fixed seat 23 and the outer tube 211. In the embodiment, the transverse push rod 25 is installed in the embedding grooves 236 of the fixed seat 23 and the notch portions 216 of the outer tube 211. The transverse push rod 25 has a length L in the second direction X and a width W in the third direction Y. The length L is much greater than the width W. The transverse push rod 25 is an oblong rod, and therefore, the width W is the diameter of the rod. The transverse push rod 25 is pressed into and engaged with one of the recess portions 217 of the inner tube 212 in the third direction Y, thereby locking the movement of the inner tube 212. That is, the transverse push rod 25 is engaged with the recess portion 217 of the inner tube 212 in the length direction with a large area, which has the effect of stable engagement with a large engagement area.

[0044] Referring toFigure 4 , Figure 7 , Figure 8 and Figure 9 The push block 26 is movably disposed on the fixed base 23 in the third direction Y. The push block 26 has two accommodating holes 261 spaced apart in the second direction X, two pushing protrusions 262 spaced apart in the first direction Z, and a concave portion 263 in the third direction Y opposite to the pushing protrusions 262. The accommodating holes 261 face the telescopic rod 21. The pushing protrusions 262 define a transverse groove 264 extending in the second direction X. The transverse push rod 25 is disposed in the transverse groove 264 between the pushing protrusions 262.

[0045] Since the vertical direction of the transverse push rod 25 is restricted by the pushing protrusion 262, and the left and right sides of the transverse push rod 25 are positioned in the groove 236 of the fixed seat 23 and the notch 216 of the outer tube 211 and are set in the transverse groove 264 of the push block 26, the transverse push rod 25 is relatively stable and not easy to deviate.

[0046] like Figure 4 and Figure 10 As shown, each of the pushing protrusions 262 extends into the slot 213 of the outer tube 211 and faces the outer surface of the inner tube 212. The surface contour of each of the pushing protrusions 262 matches the outer surface contour of the inner tube 212.

[0047] See Figure 7 , Figure 8 and Figure 11 The elastic element 27 is elastically disposed between the push block 26 and the transverse push rod 25 along the third direction Y, and constantly pushes the transverse push rod 25 to engage and position itself in the inner tube 212. In this embodiment, the elastic element 27 is respectively installed in the receiving hole 261. Each elastic element 27 is a compression spring, with one end housed in the corresponding receiving hole 261 and the other end abutting against the transverse push rod 25. The elastic force of the elastic element 27 constantly pushes the transverse push rod 25 to press against the inner tube 212.

[0048] The lever 28 is movably disposed on the fixed base 23 and is used to drive the push block 26 to move along the third direction Y. In this embodiment, the lever 28 has a cam portion 281 pivotally disposed on the fixed base 23 and used to push against the concave portion 263, and a lever portion 282 extending outward from the cam portion 281.

[0049] The lever 28 can be in a locked position (see...) Figure 8 ) and an unlock location (see Figure 11 Rotate.

[0050] As shown in Figure 8 , when the lever 28 is in the locked position, the lever portion 282 is close to the fixed seat 23, the cam portion 281 pushes against the concave portion 263 of the push block 26, the push block 26 is pressed by the elastic member 27, and the horizontal push rod 25 is pushed by the elastic member 27 to be engaged and positioned in one of the recesses 217 of the inner tube 212.

[0051] As shown in Figure 11 , when the lever 28 is in the unlocked position, the lever portion 282 rotates outward and away from the fixed seat 23, the cam portion 281 is disengaged from the concave portion 263 of the push block 26, the push block 26 is no longer pushed by the lever 28, the elastic force of the elastic member 27 is released, and the push block 26 is pushed backward, the horizontal push rod 25 is also pushed by the elastic member 27 and temporarily positioned in the recess 217 of the inner tube 212, at this time, the inner tube 212 can be pulled up and down, at the moment when any of the recesses 217 of the inner tube 212 is not aligned with the horizontal push rod 25, the outer surface of the inner tube 212 will temporarily move the horizontal push rod 25 backward to press the elastic member 27 more, when one of the recesses 217 of the inner tube 212 is aligned with the horizontal push rod 25, the elastic force of the elastic member 27 will push the horizontal push rod 25 forward to be positioned in the recess 217, and a "click" sound is produced, thereby achieving the effect of adjusting the height of the telescopic rod 21 and positioning.

[0052] As shown in Figure 1 and Figure 2 , the handle groups 3 are respectively arranged at the top ends of the telescopic rods 21 of the lifting rod device 2. Each of the handle groups 3 has a handle 31 mounted on the corresponding inner tube 212, and a brake 32 for preventing the chassis 11 from sliding. By adjusting the height of the telescopic rod 21 of the lifting rod device 2, the height of the handle 31 can be adjusted to match the height or body shape of the user, which is more ergonomic.

[0053] The protective belt 4 is connected between the lifting rod devices 2. When the embodiment is used as a wheelchair, the protective belt 4 can be used as a backrest for the user in a sitting position.

[0054] The auxiliary unit 5 is located between the handle group 3 and the chassis 11 and is installed between the lifting rod devices 2. In this embodiment, the auxiliary unit 5 is a seat, and when the walker is used as a wheelchair in this embodiment, the user can sit on the auxiliary unit 5. The auxiliary unit 5 has a seat cushion 51 connected between the lifting rod devices 2 and a pivot base 52 connected to the seat cushion 51 and connected to the connecting rod group 12 of the frame unit 100. The seat cushion 51 has two seat plates that can be folded. In this embodiment, the connecting rod group 12 is pivotally arranged between the chassis 11 and the seat cushion 51 of the auxiliary unit 5.

[0055] Referring to Figure 1 and Figure 12 , the connecting rod group 12 has a plurality of (for example, two) movable and cross-shaped connecting rods 121, so that the walker with adjustable handle height can be folded left and right (as shown in Figure 12 ). In some variations, the connecting rod group 12 can also have various changes, so that the walker with adjustable handle height can be folded up and down, and / or folded left and right. However, the utility model can also be fixed, not limited to being foldable.

[0056] In some variations, the auxiliary unit 5 can also be a storage box, or a composite element with functions such as a storage box and a seat, and the auxiliary unit 5 can also be omitted, not limited to this.

[0057] It is to be noted that the lifting rod device 2 of the utility model can be applied not only to a walker or a transport vehicle, but also to a wheelchair, a walking stick, a walking aid, and other similar assistive devices, and the application field covers various assistive devices for people with difficulty in moving to stand and walk by themselves, people with difficulty in moving to sit and move by pushing the wheels by themselves, and people with difficulty in moving to sit and be pushed by a caregiver.

[0058] In summary, the walker with adjustable handle height of the utility model can achieve the effect of clamping and positioning by constantly pushing the transverse push rod 25 along the third direction Y to engage with one of the recesses 217 of the inner tube 212 through the elastic member 27 when adjusting the lifting height of the telescopic rod 21. Since the transverse push rod 25 is engaged with the recess 217 of the inner tube 212 in a large area in the length direction, the engagement area is large, the engagement is stable, the telescopic rod 21 is not easy to shake, and the purpose of the utility model can be achieved.

[0059] The above is only an embodiment of the utility model, and the scope of the utility model is not limited by this. Any simple equivalent changes and modifications made in accordance with the claims and description of the utility model are still within the scope of the utility model.

Claims

1. A lift pole apparatus, characterized by: A telescopic rod comprising an outer tube and an inner tube telescopically movable relative to the outer tube in a first direction, the outer tube having a slot, the inner tube having a plurality of recesses spaced apart in the first direction; and A lifting adjustment assembly disposed in the telescopic rod and used to adjust the lifting of the telescopic rod, the lifting adjustment assembly comprising: a fixed seat sleeved on one end of the outer tube and having a sleeve hole for the outer tube to pass through, and a recess chamber in space communication with the sleeve hole and aligned with the slot of the outer tube, a transverse push rod extending in a second direction perpendicular to the first direction, the transverse push rod being disposed in the recess chamber of the fixed seat and the slot of the outer tube, the transverse push rod having a length in the second direction and a width in a third direction perpendicular to the first direction and the second direction, the length being greater than the width, the transverse push rod being pressed into and engaged with one of the recesses of the inner tube in the third direction, a push block movably disposed in the fixed seat in the third direction, at least one elastic member being elastically disposed between the push block and the transverse push rod in the third direction and constantly urging the transverse push rod to be engaged and positioned in the inner tube, and a pulling member movably disposed in the fixed seat and used to move the push block in the third direction. The lifting adjustment assembly comprises two elastic members, the push block having two accommodating holes spaced apart in the second direction and respectively for the elastic members to be installed, one end of each of the elastic members being accommodated in the corresponding accommodating hole and the other end being elastically abutted against the transverse push rod.

2. The lift bar device of claim 1, wherein: The push block has two push abutting protrusions spaced apart in the first direction, each of the push abutting protrusions extending into the slot of the outer tube and facing the outer surface of the inner tube, the transverse push rod being disposed between the push abutting protrusions.

3. The lift bar device of claim 1, wherein: The push block has a transverse slot for the transverse push rod to be disposed and a concave portion opposite to the transverse slot in the third direction, the pulling member having a cam portion pivoted to the fixed seat and used to abut against the concave portion, and a pulling portion outwardly extended from the cam portion.

4. The lift bar device of claim 1, wherein: The fixed seat has two base walls spaced apart in the first direction and a surrounding wall connecting the base walls in the first direction, the sleeve hole and the recess chamber being defined by the base walls and the surrounding wall, the surrounding wall having two embedding grooves located at the junction of the sleeve hole and the recess chamber and for the transverse push rod to be disposed.

5. The lift bar device of claim 1, wherein: The slot of the outer tube has a slot main portion aligned with the recess chamber of the fixed seat and two notch portions respectively extended from two opposite sides of the slot main portion, the notch portions being spaced apart in the second direction and for the transverse push rod to pass through.

6. The lift bar device of claim 1, wherein: A vehicle frame unit comprising a slideable chassis and two lifting rod devices according to any one of claims 1 to 6, the lifting rod devices being respectively disposed on two opposite sides of the chassis; and 7. A walking aid in which the height of the handle can be adjusted, characterized in that: Two handle assemblies respectively disposed in the lifting rod devices, each of the handle assemblies having a handlebar mounted on the corresponding telescopic rod and a brake used to stop the chassis from sliding. A vehicle frame unit comprising a slideable chassis and two lifting rod devices according to any one of claims 1 to 6, the lifting rod devices being respectively disposed on two opposite sides of the chassis; and Two handle assemblies respectively disposed in the lifting rod devices, each of the handle assemblies having a handlebar mounted on the corresponding telescopic rod and a brake used to stop the chassis from sliding. ​ 8. The walker of claim 7, wherein: A protective band is also included, which is connected between the lifting rod devices.

9. The walker of claim 7, wherein: An auxiliary unit is also included, which is located between the handlebar group and the chassis and connected between the lifting rod devices.

10. The walker of claim 9, wherein: The frame unit also includes a linkage group connecting the chassis and the auxiliary unit, which has a plurality of movable links, so that the height of the liftable handlebars can be adjusted.

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