CN213047774U - Wheelchair armrest overturning and fixing mechanism - Google Patents
Wheelchair armrest overturning and fixing mechanism Download PDFInfo
- Publication number
- CN213047774U CN213047774U CN202020478252.6U CN202020478252U CN213047774U CN 213047774 U CN213047774 U CN 213047774U CN 202020478252 U CN202020478252 U CN 202020478252U CN 213047774 U CN213047774 U CN 213047774U
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- China
- Prior art keywords
- connecting block
- movable rod
- handrail
- locking
- fixed
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- Expired - Fee Related
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Abstract
The utility model aims at providing a wheelchair armrest overturning and fixing mechanism which can make the armrest reset, lock and unlock more convenient. The utility model provides a wheelchair handrail upset fixed establishment, is including setting up the handrail subassembly on the frame, the handrail subassembly includes the handrail that sets up along the fore-and-aft direction, and handrail rear end is articulated fixed with the frame, and the skew rear end of handrail department is articulated fixed with a connecting block rear end, the connecting block front end is articulated fixed with upper end of the support bar, the bracing piece lower extreme is articulated fixed with the frame, the skew rear end of handrail department is equipped with another connecting block of downwardly extending, is equipped with the locking mechanical system who mutually supports in order to be used for two connecting blocks to connect to fix between two connecting blocks, and two connecting blocks are first connecting block and second connecting block respectively, the connecting block of handrail downside is the second connecting block, connecting block between handrail and bracing piece is first connecting block.
Description
Technical Field
The utility model relates to a wheelchair, concretely relates to wheelchair handrail upset fixed establishment.
Background
In order to bring convenience to family members to carry passengers to the wheelchair, the armrests of the wheelchair have a turning function, and after the passengers sit on the wheelchair, the armrests are turned forwards and downwards to achieve resetting of the armrests. In the prior art, the handrail is fixed in position through the quick-release tool after resetting, but the quick-release tool is still troublesome to use, occupies a large space and is large in operation range.
Disclosure of Invention
The utility model aims at providing a wheelchair armrest overturning and fixing mechanism which can make the armrest reset, lock and unlock more convenient.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a wheelchair handrail upset fixed establishment, is including setting up the handrail subassembly on the frame, the handrail subassembly includes the handrail that sets up along the fore-and-aft direction, and handrail rear end is articulated fixed with the frame, and the skew rear end of handrail department is articulated fixed with a connecting block rear end, the connecting block front end is articulated fixed with upper strut bar end, the bracing piece lower extreme is articulated fixed with the frame, the skew rear end of handrail department is equipped with another connecting block of downwardly extending, is equipped with the locking mechanical system who mutually supports in order to be used for two connecting blocks to connect fixedly between two connecting blocks, and two connecting blocks are first connecting block and second connecting block respectively, locking mechanical system is including setting up movable rod and spring on first connecting block, be equipped with the locking arch on the movable rod, the second connecting block is equipped with the protruding complex locking hole of locking, first connecting block be equipped with the first holding tank of movable rod complex, Be equipped with the protruding complex second holding tank of locking, first connecting block still is equipped with and is used for making second connecting block tip can stretch into the intercommunication groove in the second holding tank, movable rod axial displacement to make spring deformation, and make the locking arch stretches into or breaks away from the locking hole.
When the handrail is required to be in contact with the locking position of the handrail, the movable rod is pressed or pulled out to deform the spring, and the locking protrusion is withdrawn from the locking hole, so that the locking between the two connecting blocks is released. When the handrail resets, carry out the rotation of handrail to make the second connecting block stretch into first connecting block, so that the second connecting block passes the intercommunication groove in order to stretch into the second holding tank, loosen the movable rod afterwards, so that the movable rod resets under the spring action, so that the locking arch stretches into in the locking hole, thereby realizes the locking of handrail reset position. The utility model discloses only need carry out pressing or pulling out of movable rod, it is more convenient to compare the use of quick detach instrument, and the action range is littleer.
As preferred, the spring is compression spring, movable rod one end is the expansion end, the movable rod other end is the link, the link of movable rod is fixed with the connecting plate that sets up with the movable rod is perpendicular, the one end that the skew movable rod of connecting plate is fixed with and extends towards the expansion end the locking is protruding, the expansion end of movable rod has the spacing arch that the restriction spring breaks away from, the spring is located between spacing arch and the first connecting block, first connecting block is located between connecting plate and the spacing arch.
The spring is a compression spring, and the locking protrusion can exit from the locking hole by pressing the movable rod, so that the operation is more convenient, and the movable rod can be made shorter.
Preferably, the connecting block on the lower side of the armrest is a second connecting block, the connecting block between the armrest and the support rod is a first connecting block, and the first connecting block has the communication groove which opens upward. Above-mentioned setting is so that handrail weight is littleer, the upset of the handrail of being convenient for, only need at handrail downside welding flaky second connecting block can.
Preferably, the movable rod, the locking protrusion and the locking hole are arranged along the left-right direction.
Preferably, the limiting protrusion is provided with an annular groove facing the connecting end of the movable rod, and the end of the spring is located in the annular groove and sleeved on the movable rod. The arrangement facilitates positioning of the spring.
Preferably, the two ends of the locking protrusion are an extending end and a fixed end, the fixed end is fixed to the movable rod, the extending end is used for extending into the locking hole, and the width of the locking protrusion is gradually reduced from the fixed end to the cross section of the extending end, so that the extending end of the locking protrusion is provided with a guide inclined surface. When the handrail resets, first connecting block and direction inclined plane contact, along with the continuation of handrail rotates, first connecting block can offset with the direction inclined plane to promote locking arch and movable rod axial displacement, do not need the operation of people just can realize the displacement of movable rod, so that the locking of resetting of handrail is simpler.
Preferably, the end of the locking protrusion is tapered.
Preferably, the movable rod is composed of a first movable rod section and a second movable rod section along the axial direction, and the first movable rod section is fixed with the second movable rod section through a fastener. The arrangement facilitates assembly of the movable rod, the spring and the first connecting block.
Preferably, the first connecting block is provided with a sinking groove for accommodating the connecting plate.
Preferably, an inclined surface is connected between the front edge of the lower end face of the second connecting block and the lower edge of the front end face of the second connecting block, and the inclined surface gradually extends backwards from top to bottom. The arrangement is convenient for the handrail to turn so that the second connecting block extends into the first connecting block.
The utility model has the advantages of more convenient resetting, locking and unlocking of the handrail.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a first connecting block and a second connecting block of FIG. 1;
fig. 3 is a schematic structural view of the locking protrusion of the present invention completely exiting the locking hole.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments.
Shown by fig. 1 to 3, the utility model discloses a wheelchair handrail upset fixed establishment, including setting up the handrail subassembly on the frame, the frame includes seat frame 11 and leans against frame 12, handrail subassembly includes handrail 2 along the fore-and-aft direction setting, handrail 2 rear ends and lean against frame 12 articulated fixed, handrail 2 skew rear end department is articulated fixed with a connecting block rear end, the connecting block front end is articulated fixed with 13 upper ends of bracing piece, 13 lower extremes of bracing piece and seat frame 11 are articulated fixed, 2 skew rear end departments of handrail are equipped with another connecting block of downwardly extending, be equipped with the locking mechanical system who mutually supports in order to be used for two connecting blocks to connect fixedly between two connecting blocks.
Two connecting blocks are first connecting block 3 and second connecting block 4 respectively, and first connecting block 3 is L shape and connects between handrail 2 and bracing piece 13, and second connecting block 4 is the slice and welds in 2 downside of handrail, and second connecting block 4 is located the front side of 3 rear ends of first connecting block.
Locking mechanical system is including setting up movable rod 31 and the spring 32 on first connecting block 3, spring 32 is compression spring and cover and establishes on movable rod 31, be equipped with locking arch 32 on the movable rod 31, second connecting block 4 is equipped with and locks protruding 32 complex locking hole 41, first connecting block 3 is equipped with and is used for the first holding tank with movable rod 31 complex, be equipped with and be used for the second holding tank with locking arch 33 complex, first connecting block 3 still is equipped with the opening that makes progress and is used for making second connecting block 4 can stretch into the intercommunication groove 30 in the second holding tank, movable rod 31 axial displacement, so that spring compression deformation, and make locking arch 33 break away from locking hole 41.
31 one end of movable rod is the expansion end, and the movable rod 31 other end is the link, and the link of movable rod 31 is fixed with the connecting plate 34 with the perpendicular setting of movable rod 31, and the one end of the skew movable rod 31 of connecting plate 34 is fixed with towards the expansion end extension the locking is protruding 33, and the expansion end of movable rod 31 has spacing arch 35 that restriction spring 32 breaks away from, and spring 32 is located between spacing arch 35 and the first link block 3, and first link block 3 is located between connecting plate 34 and the spacing arch 35. Wherein, the movable rod 31, the locking protrusion 33 and the locking hole 41 are all arranged along the left and right direction.
Wherein, the limiting protrusion 35 is formed with an annular groove 351 with an opening facing the connecting plate 34, and the end of the spring 32 is located in the annular groove 351 and sleeved on the movable rod 31. The two ends of the locking protrusion 33 are an extending end and a fixed end, the fixed end is fixed with the movable rod 33, the extending end is used for extending into the locking hole 41, and the cross section of the width of the locking protrusion 33 from the fixed end to the extending end is gradually reduced, so that the end surface of the locking protrusion 33 facing the armrest is a guiding inclined surface 331. The movable rod 31 is composed of a movable rod segment 311 and a movable rod segment 312 along the axial direction, and the movable rod segment 311 is fixed with the movable rod segment 312 through a fastener. The first connecting block 3 is provided with a countersunk groove 36 for receiving the connecting plate 34.
Wherein, be connected with inclined plane 42 between second connecting block 4 lower extreme terminal surface front edge and the preceding terminal surface lower edge, inclined plane 42 extends backward gradually from top to bottom.
The utility model has the advantages of it is just more convenient to enable the handrail locking and the locking of reseing the utility model discloses a locking mechanical system occupation space is less, and the operation action range is littleer.
Claims (10)
1. The utility model provides a wheelchair handrail upset fixed establishment, is including setting up the handrail subassembly on the frame, its characterized in that handrail subassembly includes the handrail that sets up along the fore-and-aft direction, and handrail rear end is articulated fixed with the frame, and the skew rear end of handrail department is articulated fixed with a connecting block rear end, the connecting block front end is articulated fixed with upper end of the support bar, the bracing piece lower extreme is articulated fixed with the frame, the skew rear end of handrail department is equipped with another connecting block of downwardly extending, is equipped with the locking mechanical system who mutually supports in order to be used for two connecting blocks to connect fixedly between two connecting blocks, and two connecting blocks are first connecting block and second connecting block respectively, locking mechanical system is including setting up movable rod and spring on first connecting block, be equipped with the locking arch on the movable rod, the second connecting block is equipped with the protruding complex locking hole of locking, first connecting block is equipped with the first holding tank of movable rod, Be equipped with the protruding complex second holding tank of locking, first connecting block still is equipped with and is used for making second connecting block tip can stretch into the intercommunication groove in the second holding tank, movable rod axial displacement to make spring deformation, and make the locking arch stretches into or breaks away from the locking hole.
2. The wheelchair armrest turnover fixing mechanism as claimed in claim 1, wherein the spring is a compression spring, one end of the movable rod is a movable end, the other end of the movable rod is a connecting end, the connecting end of the movable rod is fixed with a connecting plate perpendicular to the movable rod, one end of the connecting plate deviating from the movable rod is fixed with the locking protrusion extending towards the movable end, the movable end of the movable rod is provided with a limiting protrusion for limiting the spring to be detached, the spring is located between the limiting protrusion and the first connecting block, and the first connecting block is located between the connecting plate and the limiting protrusion.
3. The wheelchair armrest turnover fixing mechanism as claimed in claim 1 or 2, wherein the connecting block on the underside of the armrest is a second connecting block, and the connecting block between the armrest and the support rod is a first connecting block having the communication groove opened upward.
4. The wheelchair armrest overturn securing mechanism of claim 1, wherein the movable rod, the locking protrusion, and the locking hole are all disposed in a left-right direction.
5. The wheelchair armrest overturning and fixing mechanism of claim 2, wherein the limiting protrusion is formed with an annular groove facing the connecting end of the movable rod, and the end of the spring is positioned in the annular groove and sleeved on the movable rod.
6. The wheelchair armrest turning/fixing mechanism as claimed in claim 1 or 2, wherein the two ends of the locking protrusion are an extending end and a fixed end, the fixed end is fixed to the movable rod, the extending end is used for extending into the locking hole, and the width of the locking protrusion is gradually reduced from the fixed end to the extending end, so that the extending end of the locking protrusion has a guiding slope.
7. The wheelchair armrest rollover securing mechanism of claim 6, wherein the locking protrusion is tapered at an end.
8. The wheelchair armrest overturn fixing mechanism as claimed in claim 1 or 2, wherein the movable rod is composed of a movable rod section and a movable rod section along the axial direction, and the movable rod section is fixed with the movable rod section through a fastener.
9. The wheelchair armrest rollover securing mechanism of claim 2, wherein the first connection block is provided with a countersink for receiving the connection plate.
10. The wheelchair armrest turnover fixing mechanism of claim 3 wherein an inclined surface is connected between the front edge of the lower end face of the second connecting block and the lower edge of the front end face, and the inclined surface extends gradually backwards from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478252.6U CN213047774U (en) | 2020-04-03 | 2020-04-03 | Wheelchair armrest overturning and fixing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478252.6U CN213047774U (en) | 2020-04-03 | 2020-04-03 | Wheelchair armrest overturning and fixing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213047774U true CN213047774U (en) | 2021-04-27 |
Family
ID=75550870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020478252.6U Expired - Fee Related CN213047774U (en) | 2020-04-03 | 2020-04-03 | Wheelchair armrest overturning and fixing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213047774U (en) |
-
2020
- 2020-04-03 CN CN202020478252.6U patent/CN213047774U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Wheelchair armrest turnover fixing mechanism Effective date of registration: 20211117 Granted publication date: 20210427 Pledgee: Dongyang Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG YINGLUOHUA REHABILITATION EQUIPMENT Co.,Ltd. Registration number: Y2021330002286 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |