CN210170321U - Angle adjusting device for wheelchair side guard plate - Google Patents
Angle adjusting device for wheelchair side guard plate Download PDFInfo
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- CN210170321U CN210170321U CN201920632661.4U CN201920632661U CN210170321U CN 210170321 U CN210170321 U CN 210170321U CN 201920632661 U CN201920632661 U CN 201920632661U CN 210170321 U CN210170321 U CN 210170321U
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- side guard
- guard plate
- gear
- floating
- tooth
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Abstract
The utility model relates to an angle adjusting device for a wheelchair side guard plate, one end of the side guard plate is connected to one side of a chair back, the angle adjusting device comprises a floating gear, a pressure spring, a fixed gear sleeve and a button, the inner side of the side guard plate is provided with a tooth groove, side guard plate teeth matched with the floating gear are arranged in the tooth groove, one end of the fixed gear sleeve is fixed on the chair back, the other end of the fixed gear sleeve is open, inner teeth matched with the floating gear are arranged in the fixed gear sleeve, the fixed gear sleeve is rotationally connected with the tooth groove, a floating tooth cavity is formed between the fixed gear sleeve and the tooth groove, the pressure spring and the floating gear are both arranged in the floating tooth cavity, the pressure spring is positioned between the fixed gear sleeve and the floating gear, two ends of the floating gear are respectively engaged with the side guard plate teeth and the inner teeth, a through hole is arranged in the tooth groove, the button is arranged at the outer side guard plate, thereby realizing the locking and unlocking of the side guard plate and the chair back.
Description
Technical Field
The utility model relates to an angle adjusting device for wheelchair side guard board belongs to seat and makes technical field.
Background
At present, armrests or side guard plates are arranged in chairs such as wheelchairs and the like, for example, armrests on high-speed rails, when the chairs need to be supported, the armrests are rotated upwards to a limit position and then pressed downwards, the armrests are fixed at positions capable of supporting arms, but the armrests can be adjusted to a supporting position, and the application range is limited; when the handrail needs to be folded, the handrail rotates upwards to the limit position again and then presses down, the handrail is folded to the cushion position, and the old people who are inconvenient to lift the arm are troublesome in operation and difficult to realize.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that exists among the prior art, provide an angle adjusting device of wheelchair side guard plate who easily operates, and have a plurality of regulation gears.
In order to achieve the above object, the utility model provides a technical scheme does: an angle adjusting device for a wheelchair side guard plate, wherein one end of the side guard plate is connected to one side of a chair back, the angle adjusting device comprises a floating gear, a pressure spring, a fixed gear sleeve and a button, a tooth groove is formed in the inner side of the side guard plate, side guard plate teeth matched with the floating gear are arranged in the tooth groove, one end of the fixed gear sleeve is fixed on the chair back, the other end of the fixed gear sleeve is open, internal teeth matched with the floating gear are arranged in the fixed gear sleeve, the fixed gear sleeve is rotationally connected with the tooth groove and forms a floating tooth cavity with the tooth groove, the pressure spring and the floating gear are both arranged in the floating tooth cavity, the pressure spring is positioned between the fixed gear sleeve and the floating gear, two ends of the floating gear are respectively meshed with the side guard plate teeth and the internal teeth, a through hole is formed in the tooth groove, the button is arranged on the outer side guard plate, one end of the button passes through the through hole and, and when the button is released, the pressure spring can push the floating gear to slide towards one side of the tooth groove and be meshed with the side guard plate teeth.
The technical scheme is further designed as follows: one side of the side guard plate tooth is an inclined plane inclined towards the floating gear, the other side of the side guard plate tooth is a right-angle plane, and when the side guard plate is rotated upwards, the meshing surface of the side guard plate tooth and the floating gear is an inclined plane; when the side guard plate is rotated downwards, the meshing surface of the teeth of the side guard plate and the floating gear is a right-angle surface.
The fixed gear sleeve shaft part is provided with a connecting rod, the floating gear shaft part is provided with a gear hole, a circular groove is formed in the tooth socket, one end of the connecting rod sequentially penetrates through the pressure spring and the gear hole to be supported in the circular groove, and the connecting rod is rotatably connected with the circular groove.
The cross section of the connecting rod is rectangular, a circular boss is arranged at the end part of the connecting rod, and the cross section of the gear hole is matched with the connecting rod.
One side of the floating gear is provided with an annular spring groove, and one end of the pressure spring is positioned in the spring groove.
The side guard plate outside is equipped with the button groove, through the through-hole intercommunication between button groove and the tooth's socket, button sliding connection is in the button groove, and button one end is equipped with the push rod, and the push rod passes the through-hole and tightly supports on floating gear.
The button groove opening part is covered with a spring piece, and the other end of the button is abutted to the inner side of the spring piece.
The angle adjusting device further comprises a connecting plate, one end of the fixed gear sleeve is fixed on the connecting plate, and the connecting plate is fixed on the chair back.
The utility model has the advantages that:
the utility model discloses in through the meshing and the separation of button and pressure spring control floating gear and side guard plate tooth to realize the locking and the unblock of side guard plate and the back of the chair, the angle modulation that the side guard plate was realized with the rotation of recess to the fixed tooth cover of accessible when the unblock, in order to satisfy.
When the side guard plate is rotated upwards, the meshing surface of the teeth of the side guard plate and the floating gear is an inclined surface, and when the side guard plate is rotated, the floating gear slides towards one side of the fixed gear sleeve and is separated from the teeth of the side guard plate under the tangential force action of the meshing inclined surface, so that the angle adjustment of the side guard plate can be realized; when the side guard plate is rotated downwards, the meshing surface of the teeth of the side guard plate and the floating gear is a right-angle surface, and the side guard plate cannot rotate; the side guard plate can rotate upwards without pressing a button, and the use is convenient.
Drawings
Fig. 1 is an exploded view of a structure of an angle adjusting apparatus according to an embodiment.
Fig. 2 is a sectional view of an angle adjusting apparatus according to an embodiment.
FIG. 3 is a front view of a floating gear according to a second embodiment.
Fig. 4 is a rear view of fig. 3.
FIG. 5 is a top view of the teeth of the floating gear according to the second embodiment.
Fig. 6 is a schematic structural view of a wheelchair to which the device of the present invention is applied.
Fig. 7 is a state diagram of fig. 6.
In the figure: 1-side guard plate, 11-tooth groove, 12-side guard plate tooth, 13-round groove, 14-through hole, 15-button groove, 2-floating gear, 21-gear hole, 22-spring groove, 3-fixed tooth sleeve, 31-internal tooth, 32-connecting rod, 33-boss, 4-pressure spring, 5-connecting plate, 6-button, 61-push rod, 62-spring piece and 7-chair back.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1 and 2, in the angle adjusting device for the wheelchair side guard of the present embodiment, one end of the side guard 1 is connected to the side of the seat back 7, and can be rotated upward or downward along the connecting point by the angle adjusting device, thereby achieving angle adjustment, as shown in fig. 6 and 7.
The angle adjusting device comprises a floating gear 2, a pressure spring 4, a fixed gear sleeve 3, a connecting plate 5 and a button 6, wherein a tooth groove 11 is formed in the inner side of a side guard plate 1, and a plurality of side guard plate teeth 12 matched with the floating gear 2 are uniformly arranged on the inner side of the tooth groove 11 along the circumferential direction; fixed tooth cover 3 one end is fixed on connecting plate 5, and the other end opening is inside to be equipped with a plurality ofly along circumference and floating gear 2 matched with internal tooth 31, and connecting plate 5 is fixed on the back of the chair 6, and 3 opening one ends of fixed tooth cover are rotated and are connected at the opening part of tooth's socket 11 to make fixed tooth cover 3 and the inside tooth chamber that floats that forms of tooth's socket 11, pressure spring 4 all sets up in the tooth chamber that floats with floating gear 2, and pressure spring 4 is located between fixed tooth cover 3 and the floating gear 2, floating gear 2 both ends respectively with side guard board tooth 12 and internal tooth 31 meshing, can't rotate side guard board 1 this moment.
This embodiment is equipped with through-hole 14 in tooth's socket 11 inside, and the side guard plate 1 outside is equipped with button groove 15 in the position that corresponds with tooth's socket 11, and button groove 15 passes through-hole 14 with tooth's socket 11 and communicates, and 6 sliding connection of button are in button groove 15, and 6 one end of button are equipped with push rod 61, and push rod 61 passes through-hole 14 and tightly supports on floating gear 2, button groove opening part cover is equipped with spring leaf 62, and the spring leaf is made by the elastic plastic piece, the button other end supports at spring leaf 62 inboardly, and spring leaf 62 elasticity is less than pressure spring 4 elasticity, can restrict button 6 in button.
In the angle adjusting device of the embodiment, the floating gear 2 can slide in the floating tooth cavity, the floating gear 2 and the internal teeth of the fixed tooth sleeve 3 are always in a meshed state and cannot rotate relatively, when the angle adjusting device is in a free state, the floating gear 2 can be partially positioned in the tooth grooves 11 under the action of the pressure spring 4, so that the floating gear 2 and the side guard plate teeth 12 are meshed with each other and cannot rotate relatively, and the side guard plate is in a locked state and cannot rotate; when the button 6 is pressed, the floating gear 2 is pushed by the push rod 61 to slide towards one side of the fixed gear sleeve 3 and separate from the side guard plate teeth 12, the side guard plate is in an unlocking state, and the fixed gear sleeve 3 is rotationally connected with the tooth socket 1, so that the side guard plate 1 can be rotated to perform angle adjustment; when the button 6 is released, the pressure spring 4 pushes the floating gear 2 to slide towards one side of the tooth groove 11 and engage with the side guard teeth 12, so that the side guard 1 is locked again.
In the embodiment, the shaft part of the fixed gear sleeve 3 is provided with a connecting rod 32, the cross section of the connecting rod is rectangular, the end part of the connecting rod is provided with a boss 33 with a circular cross section, the shaft part of the floating gear 2 is provided with a gear hole 21, the cross section of the gear hole is matched with that of the connecting rod, a circular groove 13 is arranged inside the tooth socket 11, one end of the connecting rod 32 sequentially penetrates through the pressure spring 4 and the gear hole 21, and the boss 33 abuts against the circular groove 13 and is rotatably connected with the circular; the connecting rod 32 and the boss 33 are provided with a first pin hole at the axial line, the side guard plate 11 is provided with a corresponding second pin hole, the tooth groove 11 and the button groove 15 are communicated through the second pin hole, and the fixed tooth sleeve 3 sequentially passes through the first and second pin holes through a pin to be rotatably connected to the side guard plate.
An annular spring groove 22 is formed in one side of the floating gear 2, one end of the pressure spring 4 is located in the spring groove 22, and dislocation between the pressure spring 4 and the floating gear 2 can be prevented.
Example two
As shown in fig. 3, 4 and 5, the structure of the angle adjusting device for the wheelchair side guard of the present embodiment is substantially the same as that of the first embodiment, except that in the present embodiment, one side of the side guard teeth 12 is an inclined surface inclined towards the floating gear, and the other side is a right-angled surface, and correspondingly, the teeth of the floating gear 2 are structurally matched with the side guard teeth 12 at the meshing part with the side guard teeth 12; when the side guard plate 1 is rotated upwards, the meshing surface of the side guard plate teeth 12 and the floating gear 2 is an inclined surface, the tangential force generated by rotating the side guard plate pushes the floating gear 2 to slide towards one side of the fixed gear sleeve 3 through the engagement of the inclined surface until the side guard plate teeth 12 are separated from the floating gear 2, the side guard plate teeth 12 and the floating gear 2 relatively rotate by the angle of one tooth, so that a plurality of gear positions for rotating the side guard plate are formed, and the button 6 does not need to be pressed when the side guard plate 1 is rotated upwards. When the side guard plate 1 rotates downwards, the meshing surface of the side guard plate teeth 12 and the floating gear 2 is a right-angle surface, the side guard plate teeth 12 and the floating gear 2 are still in a locking state, the side guard plate 1 cannot rotate, the side guard plate 1 can be adjusted to different angles, the side guard plate 1 bears downward pressure when supporting an arm, the side guard plate rotates downwards, the side guard plate is in the locking state, and the side guard plate can be adjusted and locked at different angles by the structure of the embodiment.
The technical scheme of the utility model is not limited to above-mentioned each embodiment, and the technical scheme that all adopt to equate substitution mode to obtain all falls the utility model discloses the within range that claims.
Claims (8)
1. The utility model provides an angle adjusting device for wheelchair side guard plate, side guard plate one end is connected in back of the chair one side, its characterized in that: the angle adjusting device comprises a floating gear, a pressure spring, a fixed gear sleeve and a button, the inner side of the side guard plate is provided with a tooth socket, the tooth socket is internally provided with side guard plate teeth matched with the floating gear, one end of the fixed gear sleeve is fixed on the chair back, the other end of the fixed gear sleeve is provided with an opening, the fixed gear sleeve is internally provided with internal teeth matched with the floating gear, the fixed gear sleeve is rotationally connected with the tooth socket, a floating tooth cavity is formed between the floating tooth cavity and the tooth groove, the pressure spring and the floating gear are both arranged in the floating tooth cavity, and the pressure spring is positioned between the fixed gear sleeve and the floating gear, two ends of the floating gear are respectively engaged with the side guard plate teeth and the internal teeth, a through hole is arranged in the tooth socket, the button is arranged on the outer side of the side guard plate, one end of the floating gear penetrates through the through hole and is tightly abutted to the floating gear, the floating gear can be pushed to slide towards one side of the fixed gear sleeve and be separated from the side guard plate teeth by pressing the button, the button is released, and the floating gear can be pushed to slide towards one side of the tooth socket and be meshed with the side guard plate teeth by the pressure spring.
2. The angle adjusting apparatus for a wheelchair side guard as claimed in claim 1, wherein: one side of the side guard plate tooth is an inclined plane inclined towards the floating gear, the other side of the side guard plate tooth is a right-angle plane, and when the side guard plate is rotated upwards, the meshing surface of the side guard plate tooth and the floating gear is an inclined plane; when the side guard plate is rotated downwards, the meshing surface of the teeth of the side guard plate and the floating gear is a right-angle surface.
3. The angle adjusting apparatus for a wheelchair side guard as claimed in claim 1, wherein: the fixed gear sleeve shaft part is provided with a connecting rod, the floating gear shaft part is provided with a gear hole, a circular groove is formed in the tooth socket, one end of the connecting rod sequentially penetrates through the pressure spring and the gear hole to be supported in the circular groove, and the connecting rod is rotatably connected with the circular groove.
4. The angle adjusting apparatus for a wheelchair side guard as claimed in claim 3, wherein: the cross section of the connecting rod is rectangular, a circular boss is arranged at the end part of the connecting rod, and the cross section of the gear hole is matched with the connecting rod.
5. The angle adjusting apparatus for a wheelchair side guard as claimed in claim 1, wherein: one side of the floating gear is provided with an annular spring groove, and one end of the pressure spring is positioned in the spring groove.
6. The angle adjusting apparatus for a wheelchair side guard as claimed in claim 1, wherein: the side guard plate outside is equipped with the button groove, through the through-hole intercommunication between button groove and the tooth's socket, button sliding connection is in the button groove, and button one end is equipped with the push rod, and the push rod passes the through-hole and tightly supports on floating gear.
7. The angle adjusting apparatus for a wheelchair side guard as claimed in claim 6, wherein: the button groove opening part is covered with a spring piece, and the other end of the button is abutted to the inner side of the spring piece.
8. The angle adjusting apparatus for a wheelchair side guard as claimed in claim 1, wherein: the chair back fixing device is characterized by further comprising a connecting plate, wherein one end of the fixed gear sleeve is fixed on the connecting plate, and the connecting plate is fixed on the chair back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920632661.4U CN210170321U (en) | 2019-05-06 | 2019-05-06 | Angle adjusting device for wheelchair side guard plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920632661.4U CN210170321U (en) | 2019-05-06 | 2019-05-06 | Angle adjusting device for wheelchair side guard plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210170321U true CN210170321U (en) | 2020-03-24 |
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ID=69832412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920632661.4U Active CN210170321U (en) | 2019-05-06 | 2019-05-06 | Angle adjusting device for wheelchair side guard plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210170321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889732A (en) * | 2022-05-16 | 2022-08-12 | 海固科技(苏州)有限公司 | Angle adjusting structure and instrument |
-
2019
- 2019-05-06 CN CN201920632661.4U patent/CN210170321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889732A (en) * | 2022-05-16 | 2022-08-12 | 海固科技(苏州)有限公司 | Angle adjusting structure and instrument |
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