CN108797263B - Short step device under wheelchair for orthopedics - Google Patents
Short step device under wheelchair for orthopedics Download PDFInfo
- Publication number
- CN108797263B CN108797263B CN201810612949.5A CN201810612949A CN108797263B CN 108797263 B CN108797263 B CN 108797263B CN 201810612949 A CN201810612949 A CN 201810612949A CN 108797263 B CN108797263 B CN 108797263B
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- Prior art keywords
- wheelchair
- spring
- bottom plate
- sliding sleeve
- orthopedics
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/529—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users specially adapted for signalling by sound or vibrations, e.g. rumble strips; specially adapted for enforcing reduced speed, e.g. speed bumps
Abstract
The invention relates to a lower short step device, in particular to a lower short step device of a wheelchair for orthopedics. The technical problem to be solved is as follows: the wheelchair short step descending device for the orthopedics department can descend short steps at any time without manually lifting the person sitting on the wheelchair down the short steps and has high safety. The technical scheme is as follows: a wheelchair lower short step device for orthopedics comprises a bottom plate, a sliding rod, a sliding sleeve, a first spring, a limiting block, a supporting plate, a bulge and the like; two slide bars are all installed to the bottom plate top left and right sides, all are equipped with the sliding sleeve on the slide bar of the left and right sides, are connected with first spring between sliding sleeve bottom and the bottom plate top, and first spring housing all is connected with the stopper on the slide bar top of the left and right sides. According to the invention, a person sitting in the wheelchair can move onto the supporting plate and then push the push rod leftwards to descend the short steps, so that the person sitting in the wheelchair does not need to lift the short steps manually, and the person sitting in the wheelchair can descend the short steps at any time.
Description
Technical Field
The invention relates to a lower short step device, in particular to a lower short step device of a wheelchair for orthopedics.
Background
The doorway of a house is generally closer to a highway, so the space in front of the doorway is generally smaller, people generally build a short step at the doorway in order to avoid rainwater from flowing into the house, and when a person sitting on a wheelchair wants to go out, a plurality of people are generally required to lift the person sitting on the wheelchair down the short step, but when no person is beside the person sitting on the wheelchair, the person is difficult to go out at any time; the door of some people builds a ramp, and the space in front of the door is small, so that the ramp is generally inclined, and therefore, the speed of the wheelchair is difficult to control when the wheelchair descends, accidents are easily caused, and the safety is low.
Therefore, it is urgently needed to develop a short-stair descending device which can descend short stairs at any time and has high safety without manually lifting down the short stairs of a person sitting in a wheelchair.
Disclosure of Invention
In order to overcome the problem that people cannot go out at any time when no people are at the side of the wheelchair; the slope is relatively inclined, so, the speed is difficult to control when the wheelchair descends, easily causes the accident, and the lower shortcoming of security, the technical problem that will solve: the wheelchair short step descending device for the orthopedics department can descend short steps at any time without manually lifting the person sitting on the wheelchair down the short steps and has high safety.
The technical scheme is as follows: a wheelchair lower short step device for orthopedics department, which comprises a bottom plate, a slide bar, a slide sleeve, a first spring, a limiting block and a supporting plate, it is protruding, first linkage block, the push rod, first sponge cover, fixed tooth and second spring, two slide bars are all installed to the bottom plate top left and right sides, all be equipped with the sliding sleeve on the slide bar of the left and right sides, be connected with first spring between sliding sleeve bottom and the bottom plate top, first spring housing is on the slide bar, the slide bar top of the left and right sides all is connected with the stopper, be connected with the backup pad between the sliding sleeve of the left and right sides, the even spaced arch that is connected with in backup pad top, the sliding sleeve left side of left side front side is connected with first linkage block, first linkage block rear side rotation type is connected with the push rod, push rod upper portion is connected with first sponge cover, push rod right side sub-unit connection has fixed tooth, fixed tooth bottom and left stopper top contact, be connected with the.
Further, still including chucking mechanism, chucking mechanism is including the second connecting block, the apparatus further comprises a rotating shaft, the diaphragm, 7 shape depression bars, the couple, third spring and latch, both sides all are connected with the second connecting block around the bottom plate top is left, two second connecting blocks all are located the left side of left side slide bar, upper portion rotary type is connected with the pivot between two second connecting blocks, be connected with the diaphragm in the pivot, 7 shape depression bars in the middle of the diaphragm top is connected with, diaphragm top right side is connected with the couple, be connected with the third spring between diaphragm bottom left side and the bottom plate top left side, push rod left side sub-unit connection has the latch, the couple can block the latch.
Further, still including baffle, second sponge cover and foam-rubber cushion, the backup pad top left and right sides all is connected with the baffle, and two baffle upper portions all are connected with the second sponge cover, and two baffle inboards are connected with the foam-rubber cushion.
Further, still including reduction gears, reduction gears is including having hollow sleeve, the piston, the montant, the intake pipe, check valve, the outlet duct, first valve and dead lever, the sliding sleeve right side on right side is connected with hollow sleeve, be equipped with the piston in the hollow sleeve, bottom plate top right side is connected with the montant, the montant is located the right side of right side slide bar, the montant top is connected with the piston bottom, hollow sleeve top right side is connected with the intake pipe, install check valve in the intake pipe, hollow sleeve top left side is connected with the outlet duct, install first valve on the outlet duct, outlet duct and intake pipe all communicate with each other in with hollow sleeve, be connected with the dead lever between hollow sleeve left side upper.
Further, still including branch, protection network and protection casing, hollow sleeve top right side is connected with branch, and branch is located the intake pipe right side, and branch left side upper portion is connected with the protection network, and the protection network bottom contacts with outlet duct and intake pipe top, and the branch top is connected with the protection casing.
The invention is installed beside the short step. When the person who sits the wheelchair needs short step down, the person who sits the wheelchair moves to the backup pad earlier, then promotes the push rod left, drives fixed tooth and removes left, and the second spring is compressed this moment, and when fixed tooth removed left and left stopper breaks away from, under the people self action of gravity who sits the wheelchair, the person who sits the wheelchair moves down to drive the backup pad and remove down, and then drive the sliding sleeve and remove down, first spring is compressed. When the person who sits the wheelchair moves down to suitable position, the person who sits the wheelchair can follow the backup pad and get off, under the effect of first spring, and the sliding sleeve upwards resets to drive the backup pad and upwards reset. Therefore, the person sitting on the wheelchair does not need to be lifted down the short steps manually, so that the person sitting on the wheelchair can descend the short steps at any time.
When the people who sits the wheelchair moves down and drives the sliding sleeve and move down, drive first connecting block and move down, thereby drive the push rod and move down, and then drive latch downstream, when the latch downstream touches the couple, the couple leanin to the left, make the diaphragm downward sloping, the third spring is compressed this moment, when the latch continues downstream and gets off with the couple, under the effect of third spring, the diaphragm upwards resets, thereby drive the couple and reset to the right, the couple can block the latch, make the latch can not the rebound, thereby can avoid when the people who sits the wheelchair gets off from the backup pad, the speed of backup pad rebound is too fast, the man of sitting the wheelchair becomes the injury. After a person sitting on the wheelchair gets off from the supporting plate, the 7-shaped pressing rod is pressed downwards to drive the transverse plate to incline downwards, so that the hook inclines leftwards, the latch is loosened, the latch resets upwards under the action of the first spring, the 7-shaped pressing rod can be loosened by the person sitting on the wheelchair, and the hook resets rightwards under the action of the third spring.
When the person sitting in the wheelchair moves onto the supporting plate, the person sitting in the wheelchair holds the baffle plate by hands, so that the person sitting in the wheelchair moves downwards more stably.
Initially, the first valve is in a closed state. When the person in the wheelchair wants to get on a short step, the person in the wheelchair appropriately opens the first valve. When the sliding sleeve moves downwards, the hollow sleeve is driven to move downwards, and because the first valve is not completely opened, the air in the hollow sleeve is slower in speed of being discharged from the air outlet pipe, so that the downward movement speed of the hollow sleeve can be reduced, the downward movement speed of the sliding sleeve can be further reduced, the downward movement speed of a person sitting on the wheelchair can be reduced, the downward movement speed of the person sitting on the wheelchair can be prevented from being too fast, accidents are caused, and the safety is improved.
The protection network can avoid external impurity to drop in outlet duct and the intake pipe, plugs up outlet duct and intake pipe. The protection casing can avoid the rainwater to fall to in the hollow sleeve from outlet duct and intake pipe.
The invention has the beneficial effects that: according to the invention, a person sitting in the wheelchair moves onto the supporting plate and then pushes the push rod leftwards, so that a short step can be descended, and thus, the person sitting in the wheelchair does not need to be lifted down manually, so that the person sitting in the wheelchair can descend the short step at any time; the speed of the person sitting in the wheelchair moving downwards can be reduced through the speed reducing mechanism, so that the phenomenon that the person sitting in the wheelchair moves downwards at an excessive speed to cause accidents can be avoided, and the safety is improved.
Drawings
Fig. 1 is a first front view structure diagram of the present invention.
Fig. 2 is a second front view structure diagram of the present invention.
Fig. 3 is an enlarged schematic view of part a of the present invention.
Fig. 4 is a third schematic view of the present invention.
Fig. 5 is a schematic diagram of a fourth front view structure according to the present invention.
Reference numerals: 1 bottom plate, 2 slide bars, 3 sliding sleeves, 4 first springs, 5 limiting blocks, 6 supporting plates, 7 protrusions, 8 first connecting blocks, 9 push rods, 10 first sponge sleeves, 11 fixed teeth, 12 second springs, 13 clamping mechanisms, 131 second connecting blocks, 132 rotating shafts, 133 transverse plates, 1347-shaped pressure rods, 135 hooks, 136 third springs, 137 latch teeth, 14 baffle plates, 15 second sponge sleeves, 16 sponge pads, 17 speed reducing mechanisms, 171 hollow sleeves, 172 pistons, 173 vertical rods, 174 air inlet pipes, 175 one-way valves, 176 air outlet pipes, 177 first valves, 178 fixed rods, 18 supporting rods, 19 protective nets and 20 protective covers.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example 1
A lower short step device of a wheelchair for orthopedics department is shown in figures 1-5 and comprises a bottom plate 1, slide bars 2, slide sleeves 3, first springs 4, limit blocks 5, support plates 6, bulges 7, first connecting blocks 8, push rods 9, first sponge sleeves 10, fixed teeth 11 and second springs 12, wherein the left side and the right side of the top of the bottom plate 1 are respectively provided with two slide bars 2, the slide bars 2 on the left side and the right side are respectively provided with the slide sleeves 3, the first springs 4 are connected between the bottoms of the slide sleeves 3 and the top of the bottom plate 1, the first springs 4 are sleeved on the slide bars 2, the top ends of the slide bars 2 on the left side and the right side are respectively connected with the limit blocks 5, the support plates 6 are connected between the slide sleeves 3 on the left side and the right side, the bulges 7 are uniformly connected at intervals at the tops of the support plates 6, the left side of the slide sleeve 3 on the left front side is connected, the lower part of the right side of the push rod 9 is connected with a fixed tooth 11, the bottom of the fixed tooth 11 is in contact with the top of the limit block 5 on the left side, and a second spring 12 is connected between the lower part of the right side of the push rod 9 and the left side of the bottom of the sliding sleeve 3 on the left side.
Example 2
A lower short step device of a wheelchair for orthopedics department is shown in figures 1-5 and comprises a bottom plate 1, slide bars 2, slide sleeves 3, first springs 4, limit blocks 5, support plates 6, bulges 7, first connecting blocks 8, push rods 9, first sponge sleeves 10, fixed teeth 11 and second springs 12, wherein the left side and the right side of the top of the bottom plate 1 are respectively provided with two slide bars 2, the slide bars 2 on the left side and the right side are respectively provided with the slide sleeves 3, the first springs 4 are connected between the bottoms of the slide sleeves 3 and the top of the bottom plate 1, the first springs 4 are sleeved on the slide bars 2, the top ends of the slide bars 2 on the left side and the right side are respectively connected with the limit blocks 5, the support plates 6 are connected between the slide sleeves 3 on the left side and the right side, the bulges 7 are uniformly connected at intervals at the tops of the support plates 6, the left side of the slide sleeve 3 on the left front side is connected, the lower part of the right side of the push rod 9 is connected with a fixed tooth 11, the bottom of the fixed tooth 11 is in contact with the top of the limit block 5 on the left side, and a second spring 12 is connected between the lower part of the right side of the push rod 9 and the left side of the bottom of the sliding sleeve 3 on the left side.
Still including chucking mechanism 13, chucking mechanism 13 is including second connecting block 131, pivot 132, diaphragm 133, 7 shape depression bar 134, couple 135, third spring 136 and latch 137, bottom plate 1 top left front and back both sides all are connected with second connecting block 131, two second connecting blocks 131 all are located the left side of left side slide bar 2, upper portion rotary type is connected with pivot 132 between two second connecting blocks 131, be connected with diaphragm 133 on the pivot 132, diaphragm 133 top is connected with middle 7 shape depression bar 134, diaphragm 133 top right side is connected with couple 135, be connected with third spring 136 between diaphragm 133 bottom left side and the bottom plate 1 top left side, push rod 9 left side sub-unit connection has latch 137, couple 135 can block latch 137.
Example 3
A lower short step device of a wheelchair for orthopedics department is shown in figures 1-5 and comprises a bottom plate 1, slide bars 2, slide sleeves 3, first springs 4, limit blocks 5, support plates 6, bulges 7, first connecting blocks 8, push rods 9, first sponge sleeves 10, fixed teeth 11 and second springs 12, wherein the left side and the right side of the top of the bottom plate 1 are respectively provided with two slide bars 2, the slide bars 2 on the left side and the right side are respectively provided with the slide sleeves 3, the first springs 4 are connected between the bottoms of the slide sleeves 3 and the top of the bottom plate 1, the first springs 4 are sleeved on the slide bars 2, the top ends of the slide bars 2 on the left side and the right side are respectively connected with the limit blocks 5, the support plates 6 are connected between the slide sleeves 3 on the left side and the right side, the bulges 7 are uniformly connected at intervals at the tops of the support plates 6, the left side of the slide sleeve 3 on the left front side is connected, the lower part of the right side of the push rod 9 is connected with a fixed tooth 11, the bottom of the fixed tooth 11 is in contact with the top of the limit block 5 on the left side, and a second spring 12 is connected between the lower part of the right side of the push rod 9 and the left side of the bottom of the sliding sleeve 3 on the left side.
Still including chucking mechanism 13, chucking mechanism 13 is including second connecting block 131, pivot 132, diaphragm 133, 7 shape depression bar 134, couple 135, third spring 136 and latch 137, bottom plate 1 top left front and back both sides all are connected with second connecting block 131, two second connecting blocks 131 all are located the left side of left side slide bar 2, upper portion rotary type is connected with pivot 132 between two second connecting blocks 131, be connected with diaphragm 133 on the pivot 132, diaphragm 133 top is connected with middle 7 shape depression bar 134, diaphragm 133 top right side is connected with couple 135, be connected with third spring 136 between diaphragm 133 bottom left side and the bottom plate 1 top left side, push rod 9 left side sub-unit connection has latch 137, couple 135 can block latch 137.
Still including baffle 14, second sponge cover 15 and foam-rubber cushion 16, the 6 top left and right sides in backup pad all are connected with baffle 14, and two 14 upper portions of baffle all are connected with second sponge cover 15, and two 14 inboard connections of baffle have foam-rubber cushion 16.
Example 4
A lower short step device of a wheelchair for orthopedics department is shown in figures 1-5 and comprises a bottom plate 1, slide bars 2, slide sleeves 3, first springs 4, limit blocks 5, support plates 6, bulges 7, first connecting blocks 8, push rods 9, first sponge sleeves 10, fixed teeth 11 and second springs 12, wherein the left side and the right side of the top of the bottom plate 1 are respectively provided with two slide bars 2, the slide bars 2 on the left side and the right side are respectively provided with the slide sleeves 3, the first springs 4 are connected between the bottoms of the slide sleeves 3 and the top of the bottom plate 1, the first springs 4 are sleeved on the slide bars 2, the top ends of the slide bars 2 on the left side and the right side are respectively connected with the limit blocks 5, the support plates 6 are connected between the slide sleeves 3 on the left side and the right side, the bulges 7 are uniformly connected at intervals at the tops of the support plates 6, the left side of the slide sleeve 3 on the left front side is connected, the lower part of the right side of the push rod 9 is connected with a fixed tooth 11, the bottom of the fixed tooth 11 is in contact with the top of the limit block 5 on the left side, and a second spring 12 is connected between the lower part of the right side of the push rod 9 and the left side of the bottom of the sliding sleeve 3 on the left side.
Still including chucking mechanism 13, chucking mechanism 13 is including second connecting block 131, pivot 132, diaphragm 133, 7 shape depression bar 134, couple 135, third spring 136 and latch 137, bottom plate 1 top left front and back both sides all are connected with second connecting block 131, two second connecting blocks 131 all are located the left side of left side slide bar 2, upper portion rotary type is connected with pivot 132 between two second connecting blocks 131, be connected with diaphragm 133 on the pivot 132, diaphragm 133 top is connected with middle 7 shape depression bar 134, diaphragm 133 top right side is connected with couple 135, be connected with third spring 136 between diaphragm 133 bottom left side and the bottom plate 1 top left side, push rod 9 left side sub-unit connection has latch 137, couple 135 can block latch 137.
Still including baffle 14, second sponge cover 15 and foam-rubber cushion 16, the 6 top left and right sides in backup pad all are connected with baffle 14, and two 14 upper portions of baffle all are connected with second sponge cover 15, and two 14 inboard connections of baffle have foam-rubber cushion 16.
Still including reducing gear 17, reducing gear 17 is including hollow sleeve 171, piston 172, montant 173, intake pipe 174, check valve 175, outlet duct 176, first valve 177 and dead lever 178, 3 right sides on the sliding sleeve on right side are connected with hollow sleeve 171, be equipped with piston 172 in the hollow sleeve 171, 1 top right side of bottom plate is connected with montant 173, montant 173 is located the right side of right side slide bar 2, montant 173 top is connected with piston 172 bottom, hollow sleeve 171 top right side is connected with intake pipe 174, install check valve 175 on the intake pipe 174, hollow sleeve 171 top left side is connected with outlet duct 176, install first valve 177 on the outlet duct 176, outlet duct 176 and intake pipe 174 all communicate with in the hollow sleeve 171, be connected with dead lever 178 between 14 right side upper portions on hollow sleeve 171 left side upper portion and the right side baffle.
Example 5
A lower short step device of a wheelchair for orthopedics department is shown in figures 1-5 and comprises a bottom plate 1, slide bars 2, slide sleeves 3, first springs 4, limit blocks 5, support plates 6, bulges 7, first connecting blocks 8, push rods 9, first sponge sleeves 10, fixed teeth 11 and second springs 12, wherein the left side and the right side of the top of the bottom plate 1 are respectively provided with two slide bars 2, the slide bars 2 on the left side and the right side are respectively provided with the slide sleeves 3, the first springs 4 are connected between the bottoms of the slide sleeves 3 and the top of the bottom plate 1, the first springs 4 are sleeved on the slide bars 2, the top ends of the slide bars 2 on the left side and the right side are respectively connected with the limit blocks 5, the support plates 6 are connected between the slide sleeves 3 on the left side and the right side, the bulges 7 are uniformly connected at intervals at the tops of the support plates 6, the left side of the slide sleeve 3 on the left front side is connected, the lower part of the right side of the push rod 9 is connected with a fixed tooth 11, the bottom of the fixed tooth 11 is in contact with the top of the limit block 5 on the left side, and a second spring 12 is connected between the lower part of the right side of the push rod 9 and the left side of the bottom of the sliding sleeve 3 on the left side.
Still including chucking mechanism 13, chucking mechanism 13 is including second connecting block 131, pivot 132, diaphragm 133, 7 shape depression bar 134, couple 135, third spring 136 and latch 137, bottom plate 1 top left front and back both sides all are connected with second connecting block 131, two second connecting blocks 131 all are located the left side of left side slide bar 2, upper portion rotary type is connected with pivot 132 between two second connecting blocks 131, be connected with diaphragm 133 on the pivot 132, diaphragm 133 top is connected with middle 7 shape depression bar 134, diaphragm 133 top right side is connected with couple 135, be connected with third spring 136 between diaphragm 133 bottom left side and the bottom plate 1 top left side, push rod 9 left side sub-unit connection has latch 137, couple 135 can block latch 137.
Still including baffle 14, second sponge cover 15 and foam-rubber cushion 16, the 6 top left and right sides in backup pad all are connected with baffle 14, and two 14 upper portions of baffle all are connected with second sponge cover 15, and two 14 inboard connections of baffle have foam-rubber cushion 16.
Still including reducing gear 17, reducing gear 17 is including hollow sleeve 171, piston 172, montant 173, intake pipe 174, check valve 175, outlet duct 176, first valve 177 and dead lever 178, 3 right sides on the sliding sleeve on right side are connected with hollow sleeve 171, be equipped with piston 172 in the hollow sleeve 171, 1 top right side of bottom plate is connected with montant 173, montant 173 is located the right side of right side slide bar 2, montant 173 top is connected with piston 172 bottom, hollow sleeve 171 top right side is connected with intake pipe 174, install check valve 175 on the intake pipe 174, hollow sleeve 171 top left side is connected with outlet duct 176, install first valve 177 on the outlet duct 176, outlet duct 176 and intake pipe 174 all communicate with in the hollow sleeve 171, be connected with dead lever 178 between 14 right side upper portions on hollow sleeve 171 left side upper portion and the right side baffle.
The air inlet pipe is characterized by further comprising a supporting rod 18, a protective net 19 and a protective cover 20, the supporting rod 18 is connected to the right side of the top of the hollow sleeve 171, the supporting rod 18 is located on the right side of the air inlet pipe 174, the protective net 19 is connected to the upper portion of the left side of the supporting rod 18, the bottom of the protective net 19 is in contact with the top ends of the air outlet pipe 176 and the air inlet pipe 174.
The invention is installed beside the short step. When the person who sits the wheelchair needs to descend the short step, the person who sits the wheelchair moves to backup pad 6 earlier, then promotes push rod 9 left, drives fixed tooth 11 and removes left, and second spring 12 is compressed this moment, and when fixed tooth 11 removed left and left stopper 5 breaks away from, under the people's self action of gravity who sits the wheelchair, the person who sits the wheelchair moves down to drive backup pad 6 and remove down, and then drive sliding sleeve 3 and remove down, first spring 4 is compressed. When the person who sits the wheelchair moves down to suitable position, the person who sits the wheelchair can follow backup pad 6 and get off, under the effect of first spring 4, sliding sleeve 3 upwards resets to drive backup pad 6 upwards resets. Therefore, the person sitting on the wheelchair does not need to be lifted down the short steps manually, so that the person sitting on the wheelchair can descend the short steps at any time.
When the person who sits the wheelchair moves down and drives the sliding sleeve 3 to move down, drive first connecting block 8 and move down, thereby drive push rod 9 and move down, and then drive latch 137 and move down, when latch 137 moves down and touches couple 135, couple 135 slopes to the left, make diaphragm 133 downward sloping, third spring 136 is compressed this moment, when latch 137 continues to move down and couple 135 breaks away from, under the effect of third spring 136, diaphragm 133 upwards resets, thereby drive couple 135 and reset to the right, couple 135 can block latch 137, make latch 137 can not the rebound, thereby can avoid when the person who sits the wheelchair comes down from backup pad 6, backup pad 6 rebound's speed is too fast, the man who sits the wheelchair becomes the injury. When a person sitting in the wheelchair gets up and down from the supporting plate 6, the 7-shaped pressing rod 134 is pressed downwards to drive the transverse plate 133 to incline downwards, the hook 135 inclines leftwards, the latch 137 is loosened, the latch 137 resets upwards under the action of the first spring 4, the 7-shaped pressing rod 134 can be loosened by the person sitting in the wheelchair, and the hook 135 resets rightwards under the action of the third spring 136.
When the wheelchair-sitting person moves onto the support plate 6, the wheelchair-sitting person holds the barrier 14 with his hands, so that the wheelchair-sitting person is more stable when moving downward.
Initially, the first valve 177 is in a closed state. When the wheelchair-seated person wants to get down a short step, the wheelchair-seated person appropriately opens the first valve 177. When the sliding sleeve 3 moves downwards, the hollow sleeve 171 is driven to move downwards, and because the first valve 177 is not completely opened, the air in the hollow sleeve 171 is slower in speed discharged from the air outlet pipe 176, so that the downward movement speed of the hollow sleeve 171 can be reduced, the downward movement speed of the sliding sleeve 3 can be reduced, the downward movement speed of a person sitting on the wheelchair can be reduced, the downward movement speed of the person sitting on the wheelchair can be prevented from being too fast, accidents are caused, and the safety is improved.
The protection net 19 can prevent external impurities from falling into the air outlet pipe 176 and the air inlet pipe 174 to block the air outlet pipe 176 and the air inlet pipe 174. The shield 20 prevents rainwater from falling into the hollow sleeve 171 from the outlet pipe 176 and the inlet pipe 174.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (5)
1. The utility model provides an orthopedics is with short step device under wheelchair which characterized in that: comprises a bottom plate, a sliding rod, a sliding sleeve, a first spring, a limiting block and a supporting plate, it is protruding, first linkage block, the push rod, first sponge cover, fixed tooth and second spring, two slide bars are all installed to the bottom plate top left and right sides, all be equipped with the sliding sleeve on the slide bar of the left and right sides, be connected with first spring between sliding sleeve bottom and the bottom plate top, first spring housing is on the slide bar, the slide bar top of the left and right sides all is connected with the stopper, be connected with the backup pad between the sliding sleeve of the left and right sides, the even spaced arch that is connected with in backup pad top, the sliding sleeve left side of left side front side is connected with first linkage block, first linkage block rear side rotation type is connected with the push rod, push rod upper portion is connected with first sponge cover, push rod right side sub-unit connection has fixed tooth, fixed tooth bottom and left stopper top contact, be connected with the.
2. The wheelchair lower short step device for orthopedics as claimed in claim 1, wherein: still including chucking mechanism, chucking mechanism is including the second connecting block, the apparatus further comprises a rotating shaft, the diaphragm, 7 shape depression bars, the couple, third spring and latch, both sides all are connected with the second connecting block around the bottom plate top is left, two second connecting blocks all are located the left side of left side slide bar, upper portion rotary type is connected with the pivot between two second connecting blocks, be connected with the diaphragm in the pivot, the diaphragm top is connected with middle 7 shape depression bars, diaphragm top right side is connected with the couple, be connected with the third spring between diaphragm bottom left side and the bottom plate top left side, push rod left side sub-unit connection has the latch, the couple can block the latch.
3. The wheelchair lower short step device for orthopedics as claimed in claim 2, wherein: the novel support plate is characterized by further comprising baffles, second sponge sleeves and sponge pads, wherein the baffles are connected to the left side and the right side of the top of the support plate, the second sponge sleeves are connected to the upper portions of the two baffles, and the sponge pads are connected to the inner sides of the two baffles.
4. The wheelchair lower short step device for orthopedics as claimed in claim 3, wherein: still including reduction gears, reduction gears is including having hollow sleeve, a piston, the montant, the intake pipe, one way check valve, the outlet duct, first valve and dead lever, the sliding sleeve right side on right side is connected with hollow sleeve, be equipped with the piston in the hollow sleeve, bottom plate top right side is connected with the montant, the montant is located the right side of right side slide bar, the montant top is connected with the piston bottom, hollow sleeve top right side is connected with the intake pipe, install one way check valve in the intake pipe, hollow sleeve top left side is connected with the outlet duct, install first valve on the outlet duct, outlet duct and intake pipe all communicate with each other with in the hollow sleeve, be connected with the dead.
5. The wheelchair lower short step device for orthopedics as claimed in claim 4, wherein: still including branch, protection network and protection casing, hollow sleeve top right side is connected with branch, and branch is located the intake pipe right side, and branch left side upper portion is connected with the protection network, and the protection network bottom contacts with outlet duct and intake pipe top, and the branch top is connected with the protection casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612949.5A CN108797263B (en) | 2018-06-14 | 2018-06-14 | Short step device under wheelchair for orthopedics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612949.5A CN108797263B (en) | 2018-06-14 | 2018-06-14 | Short step device under wheelchair for orthopedics |
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| Publication Number | Publication Date |
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| CN108797263A CN108797263A (en) | 2018-11-13 |
| CN108797263B true CN108797263B (en) | 2020-10-16 |
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|---|---|---|---|
| CN201810612949.5A Active CN108797263B (en) | 2018-06-14 | 2018-06-14 | Short step device under wheelchair for orthopedics |
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| GB1367811A (en) * | 1971-07-23 | 1974-09-25 | Johansson Hans Arne Valentin | Safety device for use in locking a wheel chair to a carrier structure |
| DE19527257C2 (en) * | 1995-07-26 | 2000-08-24 | Lenard Weinmann | Holding arrangement for injured persons with in particular spinal injuries |
| CN1959035A (en) * | 2006-11-17 | 2007-05-09 | 孙晓龙 | Work saving device for object to go up or down steps of staircase |
| CN102256830A (en) * | 2008-12-18 | 2011-11-23 | 爱信轻金属株式会社 | Ramp device for vehicle |
-
2018
- 2018-06-14 CN CN201810612949.5A patent/CN108797263B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1367811A (en) * | 1971-07-23 | 1974-09-25 | Johansson Hans Arne Valentin | Safety device for use in locking a wheel chair to a carrier structure |
| DE19527257C2 (en) * | 1995-07-26 | 2000-08-24 | Lenard Weinmann | Holding arrangement for injured persons with in particular spinal injuries |
| CN1959035A (en) * | 2006-11-17 | 2007-05-09 | 孙晓龙 | Work saving device for object to go up or down steps of staircase |
| CN102256830A (en) * | 2008-12-18 | 2011-11-23 | 爱信轻金属株式会社 | Ramp device for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108797263A (en) | 2018-11-13 |
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Effective date of registration: 20200916 Address after: Room 01, unit 1, building 5, Xinyuan Xiao2 District, Suxi Town, Yiwu City, Jinhua City, Zhejiang Province Applicant after: Yiwu Ce New Material Co.,Ltd. Address before: 518105 Shenzhen Songgang Orthopaedic Clinic of Traditional Chinese Medicine, No. 18 Shajiang East Road, Songgang Street, Baoan District, Shenzhen City, Guangdong Province Applicant before: Wang Ying |
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Application publication date: 20181113 Assignee: Quzhou Chenlong Hardware Co.,Ltd. Assignor: Yiwu Ce New Material Co.,Ltd. Contract record no.: X2021330000554 Denomination of invention: A short step device under wheelchair for orthopedics Granted publication date: 20201016 License type: Common License Record date: 20211022 |
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