CN219423174U - Folding locking mechanism and wheelchair using same - Google Patents
Folding locking mechanism and wheelchair using same Download PDFInfo
- Publication number
- CN219423174U CN219423174U CN202222953054.2U CN202222953054U CN219423174U CN 219423174 U CN219423174 U CN 219423174U CN 202222953054 U CN202222953054 U CN 202222953054U CN 219423174 U CN219423174 U CN 219423174U
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- connecting rod
- locking mechanism
- handle
- base
- piece
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- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 230000000670 limiting effect Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
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- Tents Or Canopies (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The utility model relates to a folding locking mechanism and a wheelchair provided with the folding locking mechanism, and relates to the field of wheelchairs. The force application efficiency of a user can be effectively improved by changing the direction of the acting force through the connecting rod, and the problem of blocking of the traditional locking structure is solved.
Description
Technical Field
The utility model belongs to the technical field of wheelchair mechanisms, and particularly relates to a micro-folding locking mechanism and a wheelchair using the same.
Background
For ease of transport and portability, wheelchairs are typically designed to be collapsible. After the seat board and the backrest relatively move, the seat board and the backrest are fixed through the locking mechanism arranged at the joint of the seat board and the backrest, so that the seat board and the backrest are stable in the use state and the folded state.
The traditional locking mechanism is that the whole folding locking mechanism is arranged in a cylinder, so that the locking mechanism is easy to be blocked, and the mechanism is inflexible in movement.
Disclosure of Invention
The utility model aims to provide a folding locking mechanism aiming at the defects of the prior art so as to solve the technical problems in the background art.
In order to achieve the aim, the utility model discloses a folding locking mechanism which comprises a locking piece, a connecting rod, a handle and a base,
a base, a base seat and a base seat,
the locking piece can be fixed on the base in a sliding way along a first direction,
the handle can be fixed on the base in a sliding way along the second direction,
one end of the connecting rod is rotatably connected with one end of the locking piece, the other end of the connecting rod is rotatably connected with one end of the handle,
wherein, when the handle moves along the second direction, the locking piece moves along the first direction.
In one scheme, the connecting rod comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotationally connected with the locking piece through a rotating shaft, the other end of the first connecting rod is rotationally connected with the handle through the rotating shaft, one end of the second connecting rod is connected with the middle part of the first connecting rod through the rotating shaft, and the other end of the second connecting rod is rotationally fixed on the base through the fixing shaft.
In one aspect, the locking member is a pin or a catch.
In one scheme, the elastic piece is sleeved on the locking piece, one end of the elastic piece is fixedly connected with the locking piece, the other end of the elastic piece is fixedly connected with the base, and the elastic piece keeps tensile stress.
In one aspect, the handle is provided with a stop that limits the range and direction of movement of the handle in the second direction.
In one aspect, the base is provided with a stop that limits the range and direction of motion of the handle in the second direction.
In one aspect, the limiting member is a groove or a protrusion.
In one aspect, the handle is provided with a kidney-shaped aperture having a long side extending in a second direction; the base is fixed with a guide post penetrating through the waist-shaped hole.
The application also provides a wheelchair, which comprises the folding locking mechanism and a fixing structure matched with the folding locking mechanism.
In one aspect, the securing structure has securing members at different locations that mate with the locking mechanism.
Compared with the prior art, the folding locking mechanism has the following advantages:
1. simplify the structure, reduce the risk of card and dun. In the application, the structure that the connecting rod is respectively connected with the handle and the pin realizes the buckling and the falling-out of the pin in the fixed structure, and the whole structure is simple;
2. the efficiency of deviate from is improved, the use experience is felt. In this application, through the horizontal motion of connecting rod structure with the unidirectional effort conversion of user's arm for folding efficiency improves by a wide margin, uses and experiences the sense and promote.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1: example 1 a schematic diagram of a locking mechanism.
Fig. 2: a first state diagram of the locking mechanism of embodiment 1;
fig. 3: a second state diagram of the locking mechanism of embodiment 1.
Wherein: 1-a pin; 2-a handle; 3-connecting rod; 3-1 a first connecting rod; 3-2 a second link; 3-3 rotating shafts; 3-4 fixed shafts; 4-a base; 5-a guide post; 6-waist-shaped hole
Detailed Description
The technical scheme of the utility model will be clearly and completely described below with reference to the accompanying drawings.
In this application, the wheelchair includes bedplate and back, and the back is including playing the back frame of supporting role, and the bedplate is including playing the saddle frame of supporting role, is connected through rotary connection spare between back frame and the bedplate frame to realize folding between back and the bedplate.
In this embodiment, the wheelchair has a use state and a folded state. When in use, a certain angle is formed between the backrest and the seat board surface, so that a person sits on the seat board. In the folded state, the backrest and the seat board are closed together to realize folding and furling. When in a use state and a folding state, the locking mechanism is connected with fixing structures at different positions to fix each state. The locking mechanism and the fixing structure are respectively arranged on the backrest and the seat board, the locking mechanism can be arranged on the backrest or the seat board according to actual conditions, and the fixing structure is correspondingly arranged on the seat board or the backrest.
In this embodiment, the locking mechanism is disposed on the seat board, and the fixing structure is fixedly disposed on the backrest, where the fixing structure may be a structure integrally formed with the backrest frame and having a plurality of position holes, or may be a structure detachably disposed on the backrest frame. The fixing structure can be 1 fixed on the backrest frame or 2 symmetrically arranged at two ends of the backrest frame.
As shown in fig. 1-3, the locking mechanism comprises a base 4 fixed on the seat plate, and the pin 1, the connecting rod 3 and the handle 2 are all arranged on the base 4. The base 4 is in the shape of a T,
wherein the pin 1 is slidably fixed on the base 4 by a "few" shaped member 7 and symmetrically arranged at both ends of the base 4. One end of the connecting rod 3 is rotationally connected with the pin 1 through a rotating shaft, and the other end is rotationally connected with the handle 2 through a rotating shaft. The handle 2 includes a connecting portion and a holding portion having protrusions for facilitating holding by a user's hand. The user drives the pin 1 to move in the horizontal direction through the connecting rod 3 by moving the holding part in the vertical direction so as to realize the buckling and the pulling-out of the pin 1 in the fixed structure.
The connecting rod 3 comprises a first connecting rod 3-1 and a second connecting rod 3-2, wherein one end of the first connecting rod 3-1 is rotationally connected with the pin 1 through a rotating shaft, and the other end of the first connecting rod is rotationally connected with the handle 2 through the rotating shaft. One end of the second connecting rod 3-2 is connected with the middle part of the first connecting rod 3-1 through a rotating shaft 3-3, and the other end is rotatably fixed on the base 4 through a fixed shaft 3-4 so as to realize the position range limitation of the first connecting rod 3-1.
In another embodiment, the pin 1 is sleeved with a limit sleeve and a spring, one end of the spring is connected with the limit sleeve, and the other end of the spring is connected with the 'few' shaped piece 7. The limiting sleeve is arranged in a clamping groove on the pin 1 or is integrally manufactured with the pin 1, wherein in the integral manufacturing scheme, the limiting sleeve is a convex ring on the pin 1. In the state of use, the spring has a tensile stress, under which the pin 1 can be snapped into a fixed structure on the backrest and pull the handle upwards through the connecting rod.
In another embodiment, a guide post 5 is fixedly arranged on the base 4 in a protruding manner on a plane perpendicular to the movement direction of the pin 1 and the handle 2, and a waist-shaped hole 6 for the guide post 5 to pass through is arranged on the handle 2. The waist-shaped hole 6 is a long-side hole groove, the long-side direction of the waist-shaped hole is always the same as the moving direction of the handle 2, and the guide post 5 can slide in the waist-shaped hole 6. The handle 2 realizes up-and-down movement of a limited position range and direction under acting force under the limiting action of the guide post 5 and the waist-shaped hole 6, namely, the handle moves in the long side direction and range of the waist-shaped hole 6. In a further embodiment, the guide post 5 does not pass through the handle but is partially slidably engaged in a guide groove on the handle, so that the limit movement of the handle 2 in the vertical direction is realized. In another embodiment, the guide posts are provided on the pull handle 2 and the guide slots are cooperatively provided on the base 4. In another embodiment, the handle 2 is limited to move up and down in a groove on the base, and the limitation of the movement direction and range of the handle 2 is realized.
In the use state, as shown in fig. 2, the pins protrude from two ends of the base 4 and are buckled in the first position of the fixing structure. In one embodiment, the pin automatically snaps into the fixed configuration when it moves to the first position with the base 4 under the spring force of the inside of the "few" word 7. In another embodiment, the pin 1 is snapped into the fixed structure by upward movement of the handle. When it is desired to fold the wheelchair, the user releases the pin 1 from the fixed structure by pushing the handle downwards, as shown in fig. 3, which is a schematic view of the released pin. The whole process is simple to operate, and the user can use the strength of the whole arm, so that the operation is convenient and easy to implement.
In this application, through the linking effect of connecting rod 3, realize that the user drives the function of the horizontal movement of pin 2 at vertical direction effort to simplify user's operation, and the connecting rod motion does not have the card phenomenon, whole smooth operation, simple structure improves the operation experience sense of wheelchair product.
The present utility model has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. Various modifications and changes of the utility model will occur to those skilled in the art, including combinations and rearrangements of the features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A folding locking mechanism, characterized in that: comprises a locking piece (1), a connecting rod (3), a handle (2) and a base (4),
a base (4),
a locking member (1) slidably fixed to the base (4) in a first direction,
a handle (2) which can be fixed on the base (4) in a sliding way along a second direction,
one end of the connecting rod (3) is rotatably connected with one end of the locking piece (1), the other end of the connecting rod is rotatably connected with one end of the handle (2),
wherein, when the handle (2) moves along the second direction, the locking piece (1) moves along the first direction.
2. The fold-locking mechanism of claim 1, wherein: the connecting rod (3) comprises a first connecting rod (3-1) and a second connecting rod (3-2), one end of the first connecting rod (3-1) is rotationally connected with the locking piece (1) through a rotating shaft, the other end of the first connecting rod is rotationally connected with the handle (2) through the rotating shaft, one end of the second connecting rod (3-2) is connected with the middle part of the first connecting rod (3-1) through the rotating shaft (3-3), and the other end of the second connecting rod is rotationally fixed on the base (4) through the fixing shaft (3-4).
3. The fold-locking mechanism of claim 1, wherein: the locking piece (1) is a pin or a buckle.
4. The fold-locking mechanism of claim 1, wherein: the locking piece (1) is sleeved with an elastic piece, one end of the elastic piece is fixedly connected with the locking piece (1), the other end of the elastic piece is fixedly connected with the base (4), and the elastic piece is kept with tensile stress.
5. The fold-locking mechanism of claim 1, wherein: the handle (2) is provided with a limiting piece, and the limiting piece limits the movement range and the movement direction of the handle (2) in the second direction.
6. The fold-locking mechanism of claim 1, wherein: and the base (4) is provided with a limiting piece, and the limiting piece limits the movement range and the movement direction of the handle (2) in the second direction.
7. The fold-locking mechanism of claim 5 or 6, wherein: the limiting piece is a groove or a bulge.
8. The fold-locking mechanism of claim 1, wherein: the handle (2) is provided with a waist-shaped hole (6), and the waist-shaped hole (6) is provided with a long side extending along a second direction; the base (4) is fixedly provided with a guide post (5) penetrating through the waist-shaped hole (6).
9. A wheelchair, characterized in that: comprising a fold-locking mechanism according to any one of claims 1-8, and a securing structure cooperating with said fold-locking mechanism.
10. A wheelchair as claimed in claim 9, characterised in that: the fixing structure is provided with fixing pieces matched with the locking mechanism at different positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222953054.2U CN219423174U (en) | 2022-11-07 | 2022-11-07 | Folding locking mechanism and wheelchair using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222953054.2U CN219423174U (en) | 2022-11-07 | 2022-11-07 | Folding locking mechanism and wheelchair using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219423174U true CN219423174U (en) | 2023-07-28 |
Family
ID=87334186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222953054.2U Active CN219423174U (en) | 2022-11-07 | 2022-11-07 | Folding locking mechanism and wheelchair using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219423174U (en) |
-
2022
- 2022-11-07 CN CN202222953054.2U patent/CN219423174U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |