CN209847620U - Lifting armrest mechanism and wheelchair - Google Patents
Lifting armrest mechanism and wheelchair Download PDFInfo
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- CN209847620U CN209847620U CN201920056509.6U CN201920056509U CN209847620U CN 209847620 U CN209847620 U CN 209847620U CN 201920056509 U CN201920056509 U CN 201920056509U CN 209847620 U CN209847620 U CN 209847620U
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- slide rail
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- 241000733322 Platea Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Steps, Ramps, And Handrails (AREA)
Abstract
The embodiment of the utility model relates to a lifting handrail mechanism and a wheelchair, wherein the lifting handrail mechanism comprises a handrail, a fixing part, a sliding part and an unlocking and locking mechanism; the handrail is connected with the upper end of the sliding piece, the sliding piece is connected to the fixed piece in a sliding mode in a liftable mode, the fixed piece is provided with an unlocking and locking mechanism groove, and the bottom of the unlocking and locking mechanism groove is provided with a pin hole; the sliding part is provided with a limiting sliding groove along the length direction, the limiting sliding groove is provided with one or more limiting holes, and the width of each limiting hole is larger than that of the limiting sliding groove; the unlocking locking mechanism comprises a button, a button reset spring and a limiting pin, the limiting pin comprises a limiting pin rod and a limiting cap, the diameter of the limiting cap is larger than that of the limiting pin rod, the limiting pin rod penetrates through a pin hole of a limiting sliding groove and an unlocking locking mechanism groove and is fixedly connected with the button, and the limiting cap and the limiting hole can be in releasable clamping connection. The utility model discloses lift handrail mechanism, simple structure is reliable, and is with low costs, controls simply.
Description
Technical Field
The utility model relates to a lifting handrail mechanism and a wheelchair with the same.
Background
In the prior art, the armrests of the wheelchair are generally fixed, so that a user is inconvenient to move to other target positions such as a bed from the side of the wheelchair when using the wheelchair, and the armrests can be abutted against a dining table in certain application scenes such as dining by the wheelchair, so that the body of the user is too far away from the dining table; in addition, the armrest of the wheelchair can be turned up from the front end, and after the armrest is turned up, a user can conveniently move to other target positions such as a bed from the side of the wheelchair.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an embodiment of the present invention provides a lifting handrail mechanism, including a handrail, a fixing member, a sliding member, and an unlocking and locking mechanism; the handrail is connected with the upper end of the sliding piece, the sliding piece is connected to the fixed piece in a sliding mode in a liftable mode, an unlocking and locking mechanism groove is formed in the surface of the inner side of the fixed piece, and a pin hole is formed in the bottom of the unlocking and locking mechanism groove; the sliding part is provided with a limiting sliding groove along the length direction of the sliding part, the limiting sliding groove is provided with one or more limiting holes along the length direction of the sliding part, and the width of each limiting hole is larger than that of the limiting sliding groove; the unlocking locking mechanism comprises a button, a button reset spring and a limiting pin, the button and the button reset spring are arranged in an unlocking locking mechanism groove, the limiting pin comprises a limiting pin rod and a limiting cap arranged at the outer end of the limiting pin rod, the diameter of the limiting cap is larger than that of the limiting pin rod, the limiting pin rod penetrates through a pin hole of a limiting sliding groove and the unlocking locking mechanism groove and is fixedly connected with the button, and the limiting cap and the limiting hole can be releasably clamped.
Further, the sliding part is a sliding groove, and the fixing part is a sliding rail.
Further, the sliding part is a sliding rail, and the fixing part is a sliding groove.
Further, the method can be used for preparing a novel materialThe sliding groove comprisesShaped plate, and rimIn the longitudinal direction of the profile plateA first plate and a second plate respectively arranged on the end parts of the two side plates of the shaped plate, wherein the first plate and the second plate have the directionThe limit end extends from the inner side of the shaping plate.
Further, one end of the first plate is located atThe inner side of the first side plate of the shaped plate is used as a first limit end, and the other end is positioned atThe outer side of the first side plate of the shaped plate is used as a first connecting end; one end of the second plate is positioned atThe inner side of the second side plate of the shaped plate is used as a second limit end, and the other end is positioned atAnd the outer side of the second side plate of the shaped plate is used as a second connecting end.
Further, the slide rail is I-shaped and comprises an outer plate, an inner plate and a connecting part for connecting the outer plate and the inner plate, and the shape of the outer side of the slide rail is matched with the shape of the inner side of the sliding groove.
Further, the lifting handrail mechanism further comprises a plastic inner chute, the plastic inner chute is embedded in the chute and fixedly connected with the chute, the slide rail is slidably connected with the plastic inner chute, and an inner chute through hole is formed in the plastic inner chute and the position corresponding to the limiting slide groove of the chute.
Further, the sliding chute also comprises a sliding chute shell and a sliding chute lower shell, wherein the sliding chute shell is arranged on the outer surface of the sliding chute, and the sliding chute lower shell is arranged at the lower end of the sliding chute; the slide rail further comprises a slide rail shell, a slide rail upper shell and a slide rail lower shell, the slide rail shell is arranged on the outer surface of the inner side of the slide rail, and the slide rail upper shell and the slide rail lower shell are respectively arranged at the upper end and the lower end of the slide rail.
The embodiment of the utility model provides a still provide a wheelchair, one of the above-mentioned lift handrail mechanism of wheelchair, lift handrail mechanism fixed connection is on the wheelchair.
Further, the wheelchair is an electric wheelchair, the electric wheelchair comprises a wheelchair controller, and the wheelchair controller is arranged in front of the armrests.
The utility model discloses beneficial effect of embodiment: the lifting handrail mechanism provided by the embodiment of the utility model has simple and reliable structure, low cost and simple operation and control, and when the handrail descends, a user can conveniently move to other target positions from the side of the wheelchair; for the electric wheelchair, the controller can be kept in front of the handrail, the distance between a user and the controller is small, the controller is not separated from the user control, and the user can conveniently control the wheelchair in various application scenes.
Drawings
FIG. 1a is a schematic view of a wheelchair with a raised armrest mechanism according to an embodiment of the present invention;
FIG. 1b is a schematic view of a wheelchair with a raised armrest mechanism in a half-raised position according to an embodiment of the present invention;
FIG. 1c is a schematic view of the wheelchair with the lifting armrest mechanism at the lowest height position according to the embodiment of the present invention;
fig. 2a is a schematic view of a lifting handrail mechanism according to an embodiment of the present invention in a raised state;
fig. 2b is a schematic view of the lifting handrail mechanism according to the embodiment of the present invention in a half-raised state;
fig. 2c is a schematic view of the lifting handrail mechanism according to the embodiment of the present invention in the lowest height state;
fig. 3a is a schematic view of an unlocking and locking mechanism of a lifting armrest mechanism according to an embodiment of the present invention in a locked state;
fig. 3b is a schematic view of the unlocking and locking mechanism of the lifting armrest mechanism according to the embodiment of the present invention in a released state;
fig. 4 is an exploded view of the lifting handrail mechanism according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the present invention is not limited to the drawings and the following embodiments. In the description of the present invention, it should be noted that the terms "longitudinal direction", "width direction", "upper", "lower", "front", "rear", "bottom", "side", and the like, which refer to the orientation or position relationship, are only used for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and should not be construed as limiting the specific scope of the present invention.
The embodiment provides a lifting handrail mechanism, which comprises a handrail, a fixed piece, a sliding piece and an unlocking and locking mechanism; the handrail is connected with the upper end of the sliding piece, the sliding piece is connected to the fixed piece in a sliding mode in a liftable mode, an unlocking and locking mechanism groove is formed in the surface of the inner side of the fixed piece, and a pin hole is formed in the bottom of the unlocking and locking mechanism groove; the sliding part is provided with a limiting sliding groove along the length direction of the sliding part, the limiting sliding groove is provided with one or more limiting holes along the length direction of the sliding part, and the width of each limiting hole is larger than that of the limiting sliding groove; the unlocking locking mechanism comprises a button, a button reset spring and a limiting pin, the button and the button reset spring are arranged in an unlocking locking mechanism groove, the limiting pin comprises a limiting pin rod and a limiting cap arranged at the outer end of the limiting pin rod, the diameter of the limiting cap is larger than that of the limiting pin rod, the limiting pin rod penetrates through a pin hole of a limiting sliding groove and the unlocking locking mechanism groove and is fixedly connected with the button, and the limiting cap and the limiting hole can be releasably clamped.
Specifically, referring to fig. 1 to 4, an embodiment of the present invention provides a lifting handrail mechanism, which includes a handrail 1, a sliding groove 2, a sliding rail 3, and an unlocking locking mechanism 4.
The armrest 1 is used for supporting the arm of a user, and the armrest 1 is fixedly connected with the upper end of the sliding groove 2.
The chute 2, for example, comprisesShaped plate 21, and rimIn the longitudinal direction of the profile plateA first plate 22 and a second plate 23 respectively provided on the end portions of the two side plates of the shaped plate 21, the first plate 22 and the second plate 23 having a longitudinal directionA limit end extending inside the shaped plate 21. Preferably, one end of the first plate 22 is located atThe inner side of the first side plate of the shaped plate 21 is used as a limiting end 221, and the other end is located atThe outer side of the first side plate of the shaped plate 21 is connected to another member of the lifting armrest mechanism as a connection end 222; similarly, one end of the second plate 23 is locatedThe inner side of the second side plate of the shaped plate 21 is used as a limiting end 231, and the other end is located atOf shaped plates 21The outside of the second side plate can be connected to another member of the armrest mechanism as a connection end 232.
In the chute 2The middle part of the shaped plate 21 is provided with a strip-shaped through or non-through along the length direction thereofThe limiting sliding groove 24 of the shaped plate 21 is provided with one or more limiting holes 25 with the aperture larger than the width of the limiting sliding groove 24 in the length direction of the limiting sliding groove 24. Preferably, the limiting holes 25 are uniformly distributed in the length direction of the limiting sliding groove 24.
The slide rail 3 is fixed to the wheelchair, for example, to a crossbar 6 of the wheelchair frame, and the slide rail 3 has a substantially i-shape and includes, for example, an outer plate 31, an inner plate 32, and a connecting portion 33 connecting the outer plate and the inner plate. The outside shape of slide rail 3 and the inboard shape phase-match of spout 2, spout 2 and slide rail 3 sliding connection, spout 2 can follow slide rail 3 and go up and down to slide.
An unlock-lock mechanism groove 34 is formed on an inner side surface of the slide rail 3, and a pin hole 35 is formed at a bottom of the unlock-lock mechanism groove 34.
The unlock and lock mechanism 4 includes a push button 41, a push button return spring 42, and a stopper pin 43. A button 41 and a button return spring 42 are disposed in the unlock-lock mechanism groove 34. The limiting pin 43 comprises a limiting pin rod 431 and a limiting cap 432 arranged at the outer end of the limiting pin rod 431, the diameter of the limiting pin rod 431 is smaller than the width of the limiting sliding groove 24, the diameter of the limiting cap 432 is larger than the diameter of the limiting pin rod 431 and also larger than the width of the limiting sliding groove 24, the shape of the limiting cap 432 is matched with the shape and size of the limiting hole 25 of the sliding groove 2, and the limiting cap 432 can be accommodated in the limiting hole 25. The inner end of the stopper pin rod 431 passes through the stopper slide groove 24 of the slide groove 2 and the pin hole 35 of the unlocking/locking mechanism groove 34 from the outside of the slide groove 2, and is fixedly connected, e.g., screwed, to the push button 41.
After the lifting armrest mechanism of the embodiment is assembled, the slide rail 3 is fixed on the wheelchair, the armrest 1 is fixedly connected with the upper end of the slide groove 2, the slide groove 2 is slidably connected with the slide rail 3, and the inner end of the limit pin rod 431 of the limit pin 43 of the unlocking and locking mechanism 4 passes through the limit slide groove 24 of the slide groove 2 and the pin hole 35 of the unlocking and locking mechanism groove 34 from the outer side of the slide groove 2 and is fixedly connected with the button 41. Under the natural state without external force, the limiting cap 432 is positioned in the limiting hole 25 of the sliding chute 2 to lock the sliding chute 2, the sliding chute 2 cannot move up and down, and the handrail 1 is fixed; when a user presses the button 41, the button return spring 42 is compressed, the limiting cap 432 of the limiting pin 43 extends outwards to be separated from the limiting hole 25, the sliding groove 2 is released, the handrail 1 can move up and down by lifting or pressing the handrail 1, when the handrail is adjusted to a proper height, the button 41 is loosened, the button return spring 42 resets the button 41, the limiting cap 432 moves into the limiting hole 25, the sliding groove 2 is locked, and the handrail 1 is fixed. Therefore, the handrail can be lifted and lowered by the lifting handrail mechanism of the embodiment.
Preferably, the lift handrail mechanism of this embodiment still includes spout 5 in the plastic, and the shape of spout 5 and the inboard shape phase-match of spout 2 in the plastic, spout 5 are provided with interior spout through-hole 51 with the corresponding position of the spacing sliding tray 24 of spout 2 in the plastic, the width of interior spout through-hole 51 is not less than spacing pin 431's diameter, 5 embedded in spouts 2 in the plastic, with spout 2 fixed connection, slide rail 3 with 5 sliding connection of spout in the plastic, 3 elevating movement of slide rail can be followed to the spout subassembly that spout 5 constitutes in spout 2 and the plastic. The increase in the plastic spout can improve the tightness and the lubrication degree of lift, avoids the noise to produce.
Preferably, the chute 2 further comprises a chute housing 26, the chute housing 26 being disposed on an outer surface of the chute 2, andthe connecting ends of the shaped plates 21 are fixedly connected; more preferably, the chute 2 further comprises a chute lower shell 27, and the chute lower shell 27 is arranged at the lower end of the chute 2. Set up spout shell and spout inferior valve and can increase lift handrail mechanism's pleasing to the eye degree.
Preferably, the slide rail 3 further comprises a slide rail housing 36, the slide rail housing 36 is arranged on the outer surface of the inner side of the slide rail 3, and the slide rail housing 36 is fixedly connected with the inner plate 32 of the slide rail 3; more preferably, the slide rail 3 further comprises a slide rail upper shell 37 and a slide rail lower shell 38, which are respectively disposed at the upper end and the lower end of the slide rail 3. The attractive degree of the lifting handrail mechanism can be increased by arranging the sliding rail shell, the sliding rail upper shell and the sliding rail lower shell.
Those skilled in the art will understand that the mechanical structure is various and is difficult to exhaust, and the present invention is not limited by the above embodiments and the accompanying drawings. For example, in one embodiment, the present invention may be implemented such that the sliding groove is fixedly connected with the wheelchair, and the slide rail is capable of moving up and down, wherein the unlocking locking groove is provided on the inner side surface of the sliding groove; in another embodiment, the plastic inner sliding groove may be only disposed in the groove portion slidably connected to the sliding rail.
The embodiment of the utility model provides a still provide a wheelchair, the wheelchair includes above-mentioned lift handrail mechanism, lift handrail mechanism and wheelchair fixed connection.
Preferably, the wheelchair is an electric wheelchair, the electric wheelchair comprises a wheelchair controller, and the wheelchair controller is arranged in front of the armrests.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A lifting handrail mechanism is characterized by comprising a handrail, a fixed piece, a sliding piece and an unlocking and locking mechanism; the handrail is connected with the upper end of the sliding piece, the sliding piece is connected to the fixed piece in a sliding mode in a liftable mode, an unlocking and locking mechanism groove is formed in the surface of the inner side of the fixed piece, and a pin hole is formed in the bottom of the unlocking and locking mechanism groove; the sliding part is provided with a limiting sliding groove along the length direction of the sliding part, the limiting sliding groove is provided with one or more limiting holes along the length direction of the sliding part, and the width of each limiting hole is larger than that of the limiting sliding groove; the unlocking locking mechanism comprises a button, a button reset spring and a limiting pin, the button and the button reset spring are arranged in an unlocking locking mechanism groove, the limiting pin comprises a limiting pin rod and a limiting cap arranged at the outer end of the limiting pin rod, the diameter of the limiting cap is larger than that of the limiting pin rod, the limiting pin rod penetrates through a pin hole of a limiting sliding groove and the unlocking locking mechanism groove and is fixedly connected with the button, and the limiting cap and the limiting hole can be releasably clamped.
2. The lift handrail mechanism of claim 1, wherein the sliding member is a sliding slot and the fixed member is a sliding rail.
3. The lift handrail mechanism of claim 1, wherein the sliding member is a slide rail and the fixed member is a slide slot.
4. The lift-armrest mechanism of claim 2, wherein the slide groove comprises an ㄩ -shaped plate, and a first plate and a second plate respectively provided on ends of both side plates of the ㄩ -shaped plate in a length direction of the ㄩ -shaped plate, the first plate and the second plate having a stopper end extending toward an inner side of the ㄩ -shaped plate.
5. The armrest mechanism as claimed in claim 4, wherein one end of the first plate is located inside the first side plate of the ㄩ -shaped plate as a first limit end, and the other end is located outside the first side plate of the ㄩ -shaped plate as a first connection end; one end of the second plate is located on the inner side of the second side plate of the ㄩ -shaped plate and serves as a second limiting end, and the other end of the second plate is located on the outer side of the second side plate of the ㄩ -shaped plate and serves as a second connecting end.
6. The lifting handrail mechanism of claim 2 or 4, wherein the sliding track is I-shaped and comprises an outer plate, an inner plate and a connecting part for connecting the outer plate and the inner plate, and the shape of the outer side of the sliding track is matched with the shape of the inner side of the sliding groove.
7. The armrest mechanism according to claim 2 or 4, wherein the armrest mechanism further comprises a plastic inner sliding slot, the plastic inner sliding slot is embedded in the sliding slot and fixedly connected to the sliding slot, the slide rail is slidably connected to the plastic inner sliding slot, and an inner sliding slot through hole is formed in the plastic inner sliding slot at a position corresponding to the position-limiting sliding slot of the sliding slot.
8. The lift handrail mechanism of claim 2, wherein the chute further comprises a chute housing and a chute lower housing, the chute housing being disposed on an outer surface of the chute, the chute lower housing being disposed at a lower end of the chute; the slide rail further comprises a slide rail shell, a slide rail upper shell and a slide rail lower shell, the slide rail shell is arranged on the outer surface of the inner side of the slide rail, and the slide rail upper shell and the slide rail lower shell are respectively arranged at the upper end and the lower end of the slide rail.
9. A wheelchair, characterized in that the wheelchair comprises a lifting armrest mechanism according to any one of claims 1-8, which lifting armrest mechanism is fixedly connected to the wheelchair.
10. The wheelchair of claim 9 wherein the wheelchair is an electric wheelchair including a wheelchair controller disposed in front of an armrest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920056509.6U CN209847620U (en) | 2019-01-14 | 2019-01-14 | Lifting armrest mechanism and wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920056509.6U CN209847620U (en) | 2019-01-14 | 2019-01-14 | Lifting armrest mechanism and wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209847620U true CN209847620U (en) | 2019-12-27 |
Family
ID=68930195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920056509.6U Active CN209847620U (en) | 2019-01-14 | 2019-01-14 | Lifting armrest mechanism and wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209847620U (en) |
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2019
- 2019-01-14 CN CN201920056509.6U patent/CN209847620U/en active Active
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