CN111839928A - Locking mechanism and folding seat and folding wheelchair using same - Google Patents
Locking mechanism and folding seat and folding wheelchair using same Download PDFInfo
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- CN111839928A CN111839928A CN202010829312.9A CN202010829312A CN111839928A CN 111839928 A CN111839928 A CN 111839928A CN 202010829312 A CN202010829312 A CN 202010829312A CN 111839928 A CN111839928 A CN 111839928A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 79
- 238000013016 damping Methods 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000008602 contraction Effects 0.000 description 6
- 238000005034 decoration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0883—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable having locking means for maintaining a folded or unfolded condition
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Abstract
The invention provides a locking mechanism, and a folding seat and a folding wheelchair using the same, wherein the locking mechanism only needs the same power source for unlocking and locking, and the folding seat and the folding wheelchair only need the same driving force for unlocking and folding, and opening and locking, so that the locking mechanism has the advantages of exquisite design, simple structure and the like; the telescopic rod piece comprises a central rod and 2 telescopic rods arranged at two ends of the central rod, the telescopic rods can move along the length direction of the central rod, an elastic piece is arranged between the 2 telescopic rods, locking pins are arranged at the opposite ends of the 2 telescopic rods, a sleeve is connected onto the central rod piece, pushing pieces are connected with two ends of the sleeve, the pushing pieces are sleeved outside the two locking pins, and the pushing pieces are V-shaped or trapezoidal.
Description
Technical Field
The invention relates to a locking mechanism, in particular to a locking mechanism which can be unlocked and locked only by the same driving source.
Background
The invention patent with application number 2020107924913 and named as a novel foldable wheelchair provides a novel foldable wheelchair, but only provides a folding mode of the wheelchair, and does not limit a locking mechanism of the foldable wheelchair, so that the invention provides a locking mechanism which can be used for locking and unlocking the foldable wheelchair and can also be used for unlocking and locking other folding mechanisms.
Disclosure of Invention
The invention aims to provide a locking mechanism which can be used for unlocking and locking a folding mechanism, only one power source is needed for unlocking and locking the locking mechanism, and the locking mechanism has the advantages of being exquisite in design, simple in structure and the like; the telescopic rod piece comprises a central rod and 2 telescopic rods arranged at two ends of the central rod, the telescopic rods can move along the length direction of the central rod, an elastic piece is arranged between the 2 telescopic rods, lock pins are arranged at the end parts of the 2 telescopic rods, a sleeve is connected onto the central rod piece, pushing pieces are connected to two ends of the sleeve, the pushing pieces are sleeved outside the two lock pins, and the pushing pieces are V-shaped or trapezoidal.
In the technical scheme, the pushing member can transversely move along the central rod only by pulling the sleeve, the pushing members at two ends of the sleeve are V-shaped or trapezoidal, the distance of the pushing member on the central rod can be changed along with the transverse movement of the pushing member on the central rod, the pushing member is sleeved outside the 2 lock pins, so that the two lock pins can be changed along with the change of the distance of the pushing member on the central rod, when the distance of the pushing member on the central rod is shortened, the distance between the two lock pins is shortened, the elastic member is compressed, the 2 shrinkage rods inwards shrink along the central rod to be separated from the mounting holes of the fixing members, the locking mechanism is unlocked, when the distance of the pushing member on the central rod is lengthened, the two lock pins drive the 2 shrinkage rods to outwards move under the elastic force of the elastic member until the shrinkage rods stretch into the mounting holes, the locking mechanism locks again.
Preferably, the device further comprises a driving device, wherein the driving device comprises a telescopic push rod, and the sleeve is connected to the tail end of the push rod.
In the technical scheme, the telescopic push rod of the driving device is used for pushing and pulling the sleeve, and the distance of the pushing piece on the central rod is changed, so that the unlocking and the locking of the locking mechanism are realized, and the unlocking and the locking of the locking mechanism only need the same power source.
Preferably, the elastic member is a spring.
The invention also provides a folding mechanism provided with the locking mechanism, the folding mechanism comprises a folding piece and a folding bracket, one end of the folding bracket is hinged with the fixed end, the other end of the folding bracket is hinged with the folding piece, the support rod group comprises a first support rod and a second support rod, and the support rod group is connected with the locking mechanism.
In the technical scheme, the folding piece, the folding bracket and the fixed end form a four-bar linkage mechanism, the locking mechanism is connected with the supporting rod group, and the folding mechanism is folded, unlocked, opened and locked only by the same driving force.
Preferably, the telescopic rod of the locking mechanism is installed in the folding member, and the first support rod or the second support rod is provided with an extension end hinged to the telescopic rod.
In this technical scheme, through extension end and scalable member articulated, can increase folding mechanism's stability.
The invention also provides a folding seat provided with the locking mechanism, the folding seat comprises a bottom frame, a seat frame and a folding bracket, the folding bracket comprises a first support rod and a second support rod, the first support rod and the second support rod are hinged between the bottom frame and the seat frame, the number of the fixing parts is 2, the fixing parts are arranged at the left end and the right end of the seat frame, the locking mechanism is arranged at the lower part of the seat frame, and the telescopic rod piece is arranged between the 2 fixing parts.
In the technical scheme, the locking mechanism is applied to the folding seat, so that the folding, unlocking, opening and locking of the seat can be realized by only using the same power source, the mechanical structure can be greatly reduced, and the product competitiveness is increased.
Preferably, an extending end is arranged on the first supporting rod or the second supporting rod, and the extending end is hinged to the telescopic rod piece.
In this solution, the stability of the seat can be increased by fitting the locking mechanism and the extension end together.
Preferably, the folding seat further comprises a seat back, a third support rod and a fourth support rod, the seat back is hinged to the seat frame, one end of the third support rod is hinged to the telescopic rod piece, the other end of the third support rod is hinged to the fourth support rod, and the fourth support rod is fixedly connected with the seat back.
In this technical scheme, can realize that seat and back of the chair once fold and a key are folded, the folding and the unblock of whole product and open and the locking all only need same power supply, design benefit, simple to use.
Preferably, the folding seat further comprises an elastic damping member, the elastic damping member is installed between the seat frame and the central rod, the elastic damping member is in a stretching state, and the pulling force of the elastic damping member counteracts the gravity when the folding seat is folded.
This technical scheme has optimized the product, prevents that the seat from appearing the card pause and the phenomenon of suddenly falling downwards when folding.
The invention also provides a folding wheelchair provided with the folding seat, and the folding wheelchair further comprises a moving chassis, wherein the moving chassis is connected with the folding seat.
This technical scheme provides a new locking form for folding wheelchair, can realize once folding and the key formula of wheelchair folding, and the folding and the unblock and the opening and the locking of wheelchair all only need same power supply.
The locking mechanism, the folding seat and the folding wheelchair using the locking mechanism can bring at least one of the following beneficial effects:
1. the unlocking and locking of the locking mechanism only need the same power source, and the locking mechanism has the advantages of simple structure, ingenious design and the like;
2. the folding mechanism, the folding seat and the folding wheelchair are folded, unlocked, opened and locked by using the same power source, and have the advantages of simple structure, ingenious design, low cost and the like.
Drawings
The above features, technical characteristics, advantages and modes of realisation of the new type of collapsible push chair according to the present invention will be further explained in a clearly understandable manner, by referring to the following description of preferred embodiments in conjunction with the accompanying drawings.
Fig. 1 is a schematic view of a lock mechanism of the present invention.
Fig. 2 is a side view of a locking mechanism of the present invention.
Fig. 3 is a schematic perspective view of a locking mechanism of the present invention.
Fig. 4 is a schematic view of a lock mechanism according to the present invention when unlocked.
Fig. 5 is a perspective view of a folding seat of the present invention.
Fig. 6 is a side view of a folding seat of the present invention when folded.
Fig. 7 is a schematic side view of a folded seat of the present invention.
FIG. 8 is a schematic illustration of the folding of a folding seat of the present invention.
Figure 9 is a schematic illustration of a folded seat of the present invention.
The reference numbers illustrate:
100. a locking mechanism; folding the seat; 10, a fixing piece; a telescoping pole;
40. a four-bar linkage; a four-bar linkage; 60, a chair back;
12. mounting holes; a center pole; a shrink rod; a locking pin; 24, a chute;
25. an elastic member; a sleeve; a pusher member; a push rod; a drive device;
35. a frame; a bottom frame; b fixing piece; 43. a first support bar;
44. a second support bar; 45. seat frames; the extension end; a third support bar;
53. a fourth support bar; and 54, bending the pipe.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In this document, upper, lower, left, right, front and right refer to upper, lower, left, right, front and right of the described drawings, which do not fully represent actual circumstances.
In one embodiment, a locking mechanism 100 of the present invention, as shown in fig. 1 to 4, includes a fixed member 10 and a telescopic rod 20, the fixed member 10 has two mounting holes 12 on the left and right, the telescopic rod 20 is mounted between the two mounting holes 12, when the locking mechanism 100 is locked, the telescopic rod 20 is mounted between the two mounting holes 12, and when the locking mechanism 100 is unlocked, the telescopic rod 20 is disengaged from the mounting holes 12 and can move.
The retractable rod 20 comprises a central rod 21, 2 retractable rods 22, 2 locking pins 23, an elastic member 25, and a sliding groove 24, wherein the central rod 21 is a hollow rod structure, the 2 retractable rods 22 are installed in the central rod 21 and at the left and right ends of the central rod 21, the retractable rods 22 are movable along the length direction of the central rod 21, the elastic member 25 is installed in the middle of the central rod 21 and connected with the left and right 2 retractable rods 22, the end portions of the 2 retractable rods 22 are provided with the locking pins 23, the retractable rods 22 can move along the length direction of the central rod 21 by pulling the locking pins 23, the central rod 21 is further provided with the sliding groove 24, and the locking pins 23 can slide in the sliding groove 24.
The locking mechanism 100 of the invention further comprises a sleeve 26 and a pushing member 27, wherein the sleeve 26 is sleeved in the middle of the central rod 21, the pushing member 27 is sleeved outside the two lock pins 23, the pushing member 27 is in a V shape or a trapezoid shape, the sleeve 26 is pushed forward, the distance of the pushing member 27 on the central rod 21 is narrowed, the pushing member 27 drives the lock pins 23 to move inwards along the central rod 21, the 2 lock pins 23 drive the 2 contraction rods 22 to move inwards, and the elastic member 25 is in a compression state; the sleeve 26 is pulled back, the distance of the pushing member 27 on the central rod 21 is widened, the 2 contracting rods 22 move outwards under the elastic force of the elastic member 25, and the 2 locking pins 23 are also moved outwards.
Preferably, the pushing member 27 is symmetrical to the left and right about the sleeve 26.
When the locking mechanism 100 is locked, the 2 retractable rods 22 of the retractable rod 20 extend into the 2 mounting holes 12, and the retractable rod 20 is fixed.
When the locking mechanism 100 needs to be opened, the sleeve 26 is pushed forward, the pushing member 27 drives the contracting rod 22 to move inwards to be separated from the mounting hole 12 through the 2 locking pins 23, the telescopic rod 20 can move between the fixing members 10, and the elastic member 25 is in a compressed state.
When the locking mechanism 100 needs to be locked again, the pushing member 27 loses pressure on the lock pin 23 by pulling the sleeve 26 backwards, and when the sleeve 26 pulls the telescopic rod 20 to move to the mounting hole 12, the two ends of the telescopic rod 20 lose pressure, and the two telescopic rods 22 extend into the mounting hole 12 to be locked under the elastic force of the elastic member 25.
The elastic member 25 of the present invention is preferably made of a spring, but may be other elastic members.
In the present embodiment, the driving sleeve 26 drives the contraction rod 22 to unlock, and the force of the driving sleeve 26 may be manual force or driving force of a driving device.
In the second embodiment, on the basis of the first embodiment, as shown in fig. 1 to 4, a locking mechanism 100 can be invented, which further includes a driving device 34, the driving device 34 and the fixing member 10 are both mounted on a frame 35, the driving device 34 has a retractable push rod 33, the push rod 33 is connected to the sleeve 26, the push rod 33 is extended or shortened under the control of the driving device 34, and at the same time, the push member 27 is driven to move, so as to unlock and lock the locking mechanism 100.
The present invention achieves that only one power source is required for both unlocking and locking of the locking mechanism 100.
In a third specific embodiment, on the basis of the second specific embodiment, the invention further provides a folding mechanism provided with the locking mechanism, the folding mechanism includes a folding member and a folding bracket, one end of the folding bracket is hinged to the fixed end, the other end of the folding bracket is hinged to the folding member, the support rod group includes a first support rod and a second support rod, and the support rod group is connected to the locking mechanism.
The folding piece, the folding bracket and the fixed end form a four-bar linkage mechanism, the locking mechanism is connected with the supporting rod group, and the folding, unlocking and unlocking of the folding mechanism only need the same driving force.
Preferably, the telescopic rod of the locking mechanism is installed in the folding member, and the first support rod or the second support rod is provided with an extension end hinged to the telescopic rod.
Through extending the end and being articulated with scalable member, drive arrangement only needs the scalable member of drive to drive folding support is folding, so can increase folding mechanism's stability.
In a fourth embodiment, as shown in fig. 5-7, the locking mechanism 100 is used with a folding seat 200.
The folding seat 200 includes a bottom frame 41 and a seat frame 45, the B fixing members 42 are connected to left and right sides of the bottom frame 41, the fixing members 13 are connected to left and right sides of the seat frame 45, the locking mechanism 100 is installed between the seat frame 45 and the fixing members 13, and the telescopic rod 20 of the locking mechanism 100 can move and lock between the left and right fixing members 13.
The B fixing part 42 and the fixing part 13 are hinged to each other to form a first supporting rod 43 and a second supporting rod 44, the B fixing part 42, the fixing part 13, the first supporting rod 43 and the second supporting rod 44 form a four-bar linkage 40, the first supporting rod 43 and the second supporting rod 44 swing upwards to open the seat, and the first supporting rod 43 and the second supporting rod 44 swing downwards to fold the seat.
In particular, the B fixing member 42 and the fixing member 13, the first support bar 43 and the second support bar 44 form a four-bar linkage, the number of the B fixing member 42 and the fixing member 13, the number of the first support bar 43 and the number of the second support bar 44 are 2, one end of the second support bar 44 hinged to the seat frame 45 further has an extension end 47, and the 2 extension ends 47 are hinged to two ends of the central rod 21 of the telescopic rod member 20.
The first support bar 43 and the second support bar 44 constitute a folding bracket of the folding seat 200, and are also a main body bracket of the folding seat 200.
In this embodiment, when the folding seat 200 is in the unfolded state, the push rod 33 of the driving device 34 extends, the pushing member 27 moves forward, the lock pin 23 drives the retracting rod 22 to retract inward, the retractable rod 20 is disengaged from the fixing member 13, the locking mechanism 100 is unlocked, the push rod 33 continues to extend, the retractable rod 20 is driven to continue to move, the retractable rod 20 drives the first support rod 43 and the second support rod 44 to swing downward through the extending end 47, and the seat folds, so that the unlocking and folding of the folding seat 200 can be completed by one driving force.
When the folding seat 200 is in the folded state, the push rod 33 of the driving device 34 is shortened, the sleeve 26 drives the telescopic rod 20 to move backwards, the extension end 47 drives the first support rod 43 and the second support rod 44 to swing upwards, at this time, the folding seat 200 is unfolded, the sleeve 26 drives the pushing piece 27 to move backwards to lose the pressing of the lock pin 23, the contraction rod 22 moves outwards under the elastic force of the elastic piece 25 until 2 contraction rods 22 extend into the mounting holes 12 of the left fixing piece 13 and the right fixing piece 13, and the folding seat 200 is locked, so that the unfolding and locking of the folding seat 200 can be completed by one driving force.
Meanwhile, only one power source is needed for locking and unlocking the locking mechanism 100 of the present invention, and the power source is the driving device 34.
Preferably, the driving device 34 can be a push rod motor, a gas spring, and other braking components.
In a fifth embodiment, as shown in fig. 5-7, the foldable seat 200 further includes a seat back 60, a bent tube 54, a third support rod 51 and a fourth support rod 53, the seat back 60 is hinged to one end of the bent tube 54, the other end of the bent tube 54 is fixedly connected to the seat frame 45, one end of the third support rod 51 is hinged to the central member 21 of the telescopic rod 20, the other end of the third support rod 51 is hinged to the fourth support rod 53, the other end of the fourth support rod 53 is fixedly connected to the seat back, and the extension end 47, the third support rod 51, the fourth support rod 53 and the bent tube 54 form a four-bar linkage 50.
As shown in fig. 8-9, which are simplified diagrams illustrating the seat and backrest folding principle of the folding seat 200 of the present invention, the four-bar linkage 40 and the four-bar linkage 50 are connected in series through the extension end 47 and the elbow 54, so that one driving force is realized to allow the four-bar linkage 40 and the four-bar linkage 50 to move simultaneously, i.e., only one driving force is required to allow the seat frame 45 and the backrest 60 to fold and unfold simultaneously.
And since the extension end 47 and the locking mechanism 100 are hinged together, the present invention achieves that only one driving force is required to unlock and fold and unlock and lock the folding seat 200 of the present invention. One-fold and one-key-fold of a folding seat 200 of the present invention may be achieved.
The specific motion principle is as follows:
when the folding seat 200 of the present invention is unfolded, the two ends of the telescopic rod 22 of the telescopic rod 20 respectively extend into the mounting holes 12, and the four-bar linkage 40 is fixed as the main body frame of the folding seat 200, and the seat frame 45 and the seat back 60 are unfolded.
When the folding seat 200 of the present invention is folded, the push rod 33 of the driving device 34 extends, the push member 27 is driven by the sleeve 26 to move forward, the push member 27 presses the lock pin 23 to drive the retractable rod 22 to retract inward, the locking mechanism 100 is unlocked, the push rod 33 extends continuously to drive the retractable rod 20 to move continuously, the retractable rod 20 drives the first support rod 43 and the second support rod 44 to swing downward through the extension end 47, and the seat frame 45 is folded; the second support rod 44 swings downward while the extending end 47 swings upward, driving the retractable rod 22 to swing upward, and pushing the fourth support rod 53 to swing forward through the third support rod 51, thereby pushing the chair back 60 to rotate forward around the rotation point 31 to fold the chair back 60, and at this time, the whole folding chair 200 is in a folded state.
Conversely, when the folding seat 200 of the present invention is to be unfolded again, the push rod 33 of the driving device 34 is shortened, the sleeve 26 drives the telescopic rod 20 to move backward, the extension end 47 drives the first support rod 43 and the second support rod 44 to swing upward, at this time, the folding seat 200 starts to be unfolded, the extension end 47 moves downward, the extension end 47 drives the fourth support rod 53 to swing backward through the third support rod 51, the seat back 60 is unfolded by driving the seat back 60 to rotate backward around the rotation point 31, at the same time, the pushing member 27 moves backward to lose the pressing of the lock pin 23, the contraction rod 22 moves outward under the elastic force of the elastic member 25 until 2 contraction rods 22 extend into the mounting holes 12 of the left and right fixing members 13, and the folding seat 200 is in an unfolded form and is locked.
The folding seat 200 can realize unlocking and folding or opening and locking of the seat only by one driving force, and the unlocking and locking are also performed by the same driving source.
In the sixth specific embodiment, on the basis of the fourth specific embodiment, a foldable wheelchair can be obtained by adding a movable chassis to the foldable seat 200 of the present invention.
In the seventh embodiment, on the basis of the fourth embodiment, when the folding seat 200 is folded, the push rod 33 extends, since the sleeve 26 is forward, a certain distance exists between the central rod 21 and the sleeve 26, at this time, the folding seat 200 is folded downward, and under the influence of gravity, the folding seat 200 will fall downward until the central rod 21 hits the inner end of the sleeve 26, in order to solve this problem, an elastic damping member is added between the seat frame 45 and the central rod 21, the elastic damping member is in a stretching state, and the central rod 21 is always under a pulling force, and the pulling force can counteract the influence of gravity when the seat is folded.
In summary, the locking mechanism provided by the invention can realize unlocking and locking actions only by the same power source, the folding seat and the folding wheelchair using the locking mechanism provided by the invention can realize unlocking, folding, opening and locking actions simultaneously only by one driving force, and the driving sources used for unlocking and locking are also the same, so the invention has various advantages of exquisite design, simple structure and the like.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A locking mechanism comprises a fixing piece and a telescopic rod piece, wherein the fixing piece is provided with a left mounting hole and a right mounting hole; the telescopic rod piece comprises a central rod and 2 telescopic rods arranged at two ends of the central rod, the telescopic rods can move along the length direction of the central rod, an elastic piece is arranged between the 2 telescopic rods, lock pins are arranged at the end parts of the 2 telescopic rods, a sleeve is connected onto the central rod piece, pushing pieces are connected to two ends of the sleeve, the pushing pieces are sleeved outside the two lock pins, and the pushing pieces are V-shaped or trapezoidal.
2. The locking mechanism of claim 1, further comprising a drive device, said drive device comprising a retractable push rod, said sleeve being attached to an end of said push rod.
3. A locking mechanism according to claim 2, wherein the resilient member is a spring.
4. A folding mechanism provided with a locking mechanism according to any one of claims 1 to 3, comprising a folding member and a folding bracket, one end of the folding bracket being hinged to a fixed end and the other end being hinged to the folding member, the set of support rods comprising a first support rod and a second support rod, the set of support rods being connected to the locking mechanism.
5. A folding mechanism according to claim 4, wherein the telescopic rod of the locking mechanism is mounted in the folding member, and the first support bar or the second support bar is provided with an extension end, and the extension end is hinged to the telescopic rod.
6. A folding seat provided with a locking mechanism according to any one of claims 1 to 3, comprising a bottom frame, a seat frame and a folding bracket, said folding bracket comprising a first support bar and a second support bar, said first support bar and said second support bar being hinged between said bottom frame and said seat frame, said fixing members being 2 in number and mounted at the left and right ends of said seat frame, said locking mechanism being mounted at the lower part of said seat frame and said telescopic rod being mounted between said 2 fixing members.
7. A folding seat according to claim 6, wherein said first or second support bar is provided with an extended end, said extended end being hingedly connected to said telescopic bar.
8. A folding seat according to claim 7, further comprising a seat back, a third support bar and a fourth support bar, wherein said seat back is hinged to said seat frame, said third support bar is hinged at one end to said telescopic bar, said third support bar is hinged at the other end to said fourth support bar, and said fourth support bar is fixedly connected to said seat back.
9. The folding seat according to claim 8, further comprising an elastic damping member mounted between the seat frame and the center rod, the elastic damping member being in tension, the tension of the elastic damping member counteracting the force of gravity when the folding seat is folded.
10. A folding wheelchair provided with a folding seat as claimed in claim 9, further comprising a moving chassis connected to the folding seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829312.9A CN111839928A (en) | 2020-08-18 | 2020-08-18 | Locking mechanism and folding seat and folding wheelchair using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010829312.9A CN111839928A (en) | 2020-08-18 | 2020-08-18 | Locking mechanism and folding seat and folding wheelchair using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111839928A true CN111839928A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010829312.9A Pending CN111839928A (en) | 2020-08-18 | 2020-08-18 | Locking mechanism and folding seat and folding wheelchair using same |
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| Country | Link |
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| CN (1) | CN111839928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230050A (en) * | 2021-03-29 | 2021-08-10 | 浙江英洛华康复器材有限公司 | Hidden operation structure for folding, locking and releasing wheelchair |
| WO2022033357A1 (en) * | 2020-08-09 | 2022-02-17 | Bangbang Robotics Co., Ltd | Collapsible wheelchair |
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| JP2014065363A (en) * | 2012-09-25 | 2014-04-17 | Shima Seisakusho:Kk | Lock device of slide member and handcart including the same |
| CN107049637A (en) * | 2017-04-26 | 2017-08-18 | 重庆易驾车业有限公司 | It is a kind of can fast folding and dismounting electric wheelchair |
| CN107049639A (en) * | 2017-05-16 | 2017-08-18 | 东莞威信运动用品有限公司 | Wheelchair folding rack |
| WO2019223027A1 (en) * | 2018-05-25 | 2019-11-28 | 东莞威信运动用品有限公司 | Collapsible support frame |
| CN209466141U (en) * | 2018-12-12 | 2019-10-08 | 长春谷川科技有限公司 | A kind of symmetrically flexible clamping device |
| CN213157124U (en) * | 2020-08-18 | 2021-05-11 | 江苏邦邦智能科技有限公司 | Locking mechanism and folding seat and folding wheelchair using same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022033357A1 (en) * | 2020-08-09 | 2022-02-17 | Bangbang Robotics Co., Ltd | Collapsible wheelchair |
| CN114340576A (en) * | 2020-08-09 | 2022-04-12 | 上海邦邦机器人有限公司 | Foldable wheelchair |
| CN114340576B (en) * | 2020-08-09 | 2023-10-24 | 上海邦邦机器人有限公司 | Foldable wheelchair |
| US12016804B2 (en) | 2020-08-09 | 2024-06-25 | Shanghai Bangbang Robotics Co., Ltd | Collapsible wheelchair |
| CN113230050A (en) * | 2021-03-29 | 2021-08-10 | 浙江英洛华康复器材有限公司 | Hidden operation structure for folding, locking and releasing wheelchair |
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