CN109907895B - Electric stair climbing chair with eight-fold mechanism - Google Patents
Electric stair climbing chair with eight-fold mechanism Download PDFInfo
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- CN109907895B CN109907895B CN201910281233.6A CN201910281233A CN109907895B CN 109907895 B CN109907895 B CN 109907895B CN 201910281233 A CN201910281233 A CN 201910281233A CN 109907895 B CN109907895 B CN 109907895B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 57
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 52
- 229910052782 aluminium Inorganic materials 0.000 claims description 52
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
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- 239000000084 colloidal system Substances 0.000 description 2
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- 230000005283 ground state Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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Abstract
The invention discloses an electric stair climbing chair with an eight-fold mechanism, which comprises: the invention relates to an electric stair climbing chair with an eight-fold mechanism, which has the advantages that eight aspects of improvement are carried out on a seat board, a backrest, a track, a front wheel, a rear wheel, a track motor, an armrest, a foot rest structure, a track wheel, a push handle and an electric stair climbing chair, the improvement on a control box, the improvement on a pull rod, the improvement on a backrest rod, the improvement on a seat frame, the improvement on a foot rest, the improvement on a track storage mechanism, the improvement on the armrest and the improvement on a seat storage mechanism, and the eight improved mechanisms can all realize folding functions.
Description
Technical Field
The invention relates to the technical field of stair climbing chairs, in particular to an electric stair climbing chair with an eight-fold mechanism.
Background
The wheelchair is an important tool for riding instead of walking for the old and the disabled, and in the building without an elevator, the going up and down stairs are very inconvenient, therefore, an electric stair climbing chair, also called an electric stair climbing vehicle, is mainly composed of two structures of a crawler and a star wheel, is most common in the market, the crawler type stair climbing chair is popular at present, the crawler type stair climbing chair works stably, the operation is simple, the electric stair climbing chair is used, the old can go up and down stairs without effort, as a novel electric stair climbing vehicle applied by the company 20160830, the patent application number is CN201610782477.9, the electric stair climbing vehicle consists of a hand pull rod, a hand pull rod height adjusting rod, a push handle, a crawler adjusting frame, a gear seat, a crawler shaft, a fixed wheel, a foot support sleeve, a universal wheel, a foot support frame, a front wheel support, a seat adjusting support, a seat frame, a seat plate, an armrest, a backrest plate and a backrest rod, can effectively realize the purposes of carrying people and carrying goods, and the product of CN201610782477.9 is aged along with China society. The electric stair climbing chair has good safety performance, the downstairs speed is too fast and has a locking function, the folding effect of the existing stair climbing chair is poor, the existing stair climbing chair can only be half of the volume in a use state and can not be compressed less, the operation of the stair climbing chair is carried out by adults, the old cannot independently finish the operation, the consignment quality of a D motor is limited by 300KM, the service life of an E track is short, and the friction coefficient of the stair is improved, therefore, the invention provides the electric stair climbing chair with an eight-fold mechanism, firstly, the folding effect of the stair climbing chair is improved.
Disclosure of Invention
The invention mainly solves the technical problem of providing an electric stair climbing chair with an eight-fold mechanism, wherein the volume of the stair climbing chair in a placing state is only one sixth to one fifth of the volume of the stair climbing chair in a working state, and the stair climbing chair can be effectively folded, so that the electric stair climbing chair is convenient to fold, carry and transport, and the stair climbing chair is an overall improvement on an automatic stair climbing chair of a company product CN201610782477.9 and an application number CN201610191657. X.
The electric stair climbing chair with the eight-fold mechanism comprises: eight improvements are made to the seat pan, back rest, track, front wheel, rear wheel, track motor, armrest, foot rest structure, track wheel, push handle, electric stair climbing chair, improvement in control box, improvement in tie rod, improvement in back rest bar, improvement in seat frame, improvement in foot rest, improvement in track storage mechanism, improvement in armrest, and improvement in seat storage mechanism.
The eight improved mechanisms can realize the folding function, so that the popularization rate of the electric stair climbing chair is improved, the application range is wide, and the volume after storage is one sixth to one fifth of the volume in the use state.
The control box, the control box adopts the cuboid structure, control panel has been set up on the control box, electronic circuit board has been set up in the control box, through the operation of control box control track, set up the cavity structure on the control box, embedded the pull rod in the cavity, the control box can do 90 degrees changes along the pull rod, under operating condition, control box and pull rod are perpendicular, under folding state, control box and pull rod keep parallelism, the embedding is inside the pull rod, a preferred technical scheme has set up the colloid friction sleeve in the control box cavity, be used for increasing the frictional force of control box and pull rod, make the control box keep the clamping force on the pull rod, the folding volume that can effectively reduce the stair chair of control box, not mention in a novel electric stair climbing car literature, the reduction of control box folding volume, make electric stair climbing chair more static.
The pull rod adopts an inverted U-shaped cylinder structure, the pull rod is arranged in the backrest rod, the pull rod can move up and down along the backrest rod, so that expansion of the pull rod is formed, a backrest cross rod A is arranged between the two backrest rods, two ends of the backrest cross rod A are of hollow structures, a handle is arranged at the middle position of the backrest cross rod A, a pull rod positioning assembly is arranged in the backrest cross rod A, positioning latch heads are arranged at two ends of the pull rod positioning assembly, the positioning latch heads are in contact with U-shaped tubes of the pull rod, and opening and stopping of the pull rod are realized through friction force between the positioning latch heads and the U-shaped tubes of the pull rod.
The middle of the pull rod positioning assembly is provided with a bolt seat, the bolt seat is of a cylindrical structure, the bolt seat is provided with a positioning screw rod, meanwhile, a transitional connecting pin is arranged, the transitional connecting pin corresponds to the handle in the middle of the backrest cross rod A in position, two ends of the bolt seat are respectively provided with a square clamping block and a rope head, the rope heads are clamped by the square clamping blocks, the outer ends of the rope heads are connected with spring stop blocks, spring columns are arranged in the spring stop blocks, the outer ends of the spring columns are provided with positioning bolt heads, the tension of the transitional connecting pin is given through the handle, the traction of the steel rope connecting pieces is realized, under the loosening state, the U-shaped pipe is positioned in the backrest rod due to the mechanical pressure of the spring, the separation of the positioning bolt heads and the U-shaped pipe is realized under the downward pressing state of the handle, so that the up-down movement of the pull rod is realized, and the up-down expansion function of the pull rod is completed by means of the handle.
The auxiliary pull rod is also arranged on the pull rod, and the whole movement of the stair climbing chair is convenient through the auxiliary pull rod.
The backrest rod, as shown in fig. 5, comprises two special-shaped tube stand columns, wherein the length of each special-shaped tube stand column is preferably 30 mm, the width of each special-shaped tube stand column is preferably 50 mm, the height of each special-shaped tube stand column is preferably 785 mm, the upper end of each special-shaped tube stand column is provided with an armrest special-shaped groove, the length of each armrest special-shaped groove is preferably 28 mm, the width of each armrest special-shaped groove is 48 mm, the height of each armrest special-shaped groove is 30 mm, a rectangular tube cross beam A, a rectangular tube cross beam B and a rectangular tube cross beam C are respectively arranged between the two special-shaped tube stand columns from top to bottom, the rectangular tube cross beam A is equal to the backrest cross beam A, and a hand push rod limiting device is arranged in the middle position of the rectangular tube cross beam A.
The inboard of foreign tube stand lower extreme has set up aluminum plate, has set up recess and draw-in groove on the aluminum plate, and aluminum plate is corresponding with seat receiving mechanism.
As shown in fig. 6, another modification is made to the backrest rod, in which the profile tube upright post is a two-layer nested hollow tube, including an inner tube and an outer tube, and the height of the backrest rod is reduced by moving the inner tube up and down in the outer tube.
The seat frame comprises a seat frame pipe, wherein the seat frame pipe comprises a U-shaped opposite pipe, a positioning sleeve A and a positioning sleeve B are arranged at two ends of the seat frame pipe, the positioning sleeve A and the positioning sleeve B are of cylindrical structures and are connected with a backrest rod into a whole through a connecting piece, a seat frame shaft is arranged between the positioning sleeve A and the positioning sleeve B, the seat frame shaft is of a cylindrical structure, the seat frame pipe can rotate along the seat frame shaft, the seat frame pipe is perpendicular to the seat frame shaft in a working state, the seat frame is unfolded, the seat frame pipe is parallel to the seat frame shaft in a furling state, and the seat frame is furled.
Still set up support A and support B on the seat frame pipe, support A and support B have connected the support respectively, realize supporting function to the seat frame pipe through the support to, set up seat frame U pipe on the seat frame pipe, seat frame U pipe nestification is intraductal at the seat frame, obtains suitable seat frame usable floor area through flexible seat frame U pipe.
The foot rest comprises a rotating sleeve, wherein a foot rest surface is arranged in the middle of the rotating sleeve, friction stripes are arranged on the foot rest surface, the rotating sleeve is connected with a foot rest rotating shaft through a hanging piece, the rotating sleeve can rotate by 1 to 170 degrees along the foot rest rotating shaft, under the action of gravity of the rotating sleeve and the baffle pulling force of the foot rest rotating shaft in a working state, the foot of a user is placed, under the furling state, the rotating sleeve is folded upwards by means of gravity, and the foot rest is tiled and folded by means of the principle of the mechanical gravity center, so that the foot rest is not provided by CN201610782477.9, application numbers CN201610191657.X, CN03267998.X, CN201510396206.5 and CN 201520056421.6.
The track containing mechanism comprises two aluminum plates, an aluminum groove is formed in each aluminum plate, the preferable length of each aluminum plate is 32 mm, the preferable width of each aluminum plate is 3 mm, the preferable height of each aluminum plate is 366 mm, 4 rotating shaft holes are formed in one end of each aluminum plate, aluminum plate rotating members are connected to the rotating shaft holes, the length of each aluminum plate rotating member is 6 mm, the width of each aluminum plate rotating member is 38 mm, the height of each aluminum plate rotating member is 81.5 mm, the two aluminum plates can rotate by 0-90 degrees along each aluminum plate rotating member, the angle between each aluminum plate and each aluminum plate rotating member is 30-60 degrees under the working state, the included angle is adjusted according to actual conditions, the aluminum plates are parallel to each aluminum plate rotating member under the folding state, and the tracks are folded on the backrest rods.
The handrail A comprises a handrail handle, the handrail handle is of a cuboid structure, the tail end of the handrail handle is fixed on a clamping seat through a rotating wheel, the clamping seat is connected with a chuck, the chuck is of a scale disc structure, the handrail A is arranged on a backrest rod through a handrail fixing sleeve and can rotate by 0 to 180 degrees through the rotating wheel, the handrail A is perpendicular to the backrest rod in a working state, the handrail A is parallel to the backrest rod in a furling state, and the handrail A and the backrest rod are clamped into a whole.
The handrail B comprises a handrail handle, the handrail handle is of a cuboid structure, the tail end of the handrail handle is fixed on the clamping seat through the rotating wheel, the clamping seat is connected with the clamping disc, the clamping disc is of a scale disc structure, the handrail B is arranged on the backrest rod through the handrail fixing sleeve, the handrail B rotates through the rotating wheel and can rotate by 0 to 180 degrees, under the working state, the handrail A is perpendicular to the backrest rod, under the furling state, the handrail B is parallel to the backrest rod, the handrail B and the backrest rod are clamped into a whole, a controller is arranged on the handrail B, and the functions of advancing and retreating of the electric stair climbing chair under the flat ground state are realized through the controller.
The seat storage mechanism can enable the seat frame to be close to parallel to the backrest rod in a folded state, and can support the seat frame in a use state.
The seat storage mechanism is shown in fig. 14 and comprises a seat frame, wherein a connecting piece A is arranged on the seat frame and connected with a front support A, the front support A is of two cylinder structures, the front support A is connected with a bottom frame into a whole through a rotating shaft, a through hole is formed in the middle of the seat frame and connected with an adjusting support connecting rod A through the through hole, the adjusting support connecting rod A is connected with an adjusting support connecting rod B through an adjusting support B, and the adjusting support connecting rod A, the adjusting support connecting rod B and the adjusting support B jointly form a shape like a Chinese character 'kou'.
The adjusting bracket connecting rod A is connected with the seat frame through a fixed spring.
The middle of the adjusting support connecting rod B is of a cylindrical structure, and cylindrical clamping heads are arranged at two ends of the adjusting support connecting rod B.
The underframe adopts a cuboid structure, the underframe is provided with an underframe groove, two ends of the underframe groove are respectively provided with a clamping groove A and a clamping groove B, the clamping head of the adjusting support connecting rod B can horizontally move in the underframe groove, the clamping head of the adjusting support connecting rod B is positioned in the clamping groove B in a working state, and the clamping head of the adjusting support connecting rod B is positioned in the clamping groove A in a furling state, which is the key point of the invention, and the furling of the seat frame is realized by the movement of the clamping head of the adjusting support connecting rod B.
Under operating condition, the clamping head of the adjusting bracket connecting rod B is positioned in the clamping groove B, the front bracket A and the underframe are in a crossed vertical supporting state, the clamping head of the adjusting bracket connecting rod B is positioned in the clamping groove A, the bracket A and the underframe are in a parallel state, and meanwhile, the seat frame and the backrest rod are in a parallel state, so that the electric stair climbing chair can be stored.
Simultaneously, set up two buckle spare on the chassis, set up the recess on the buckle spare, the recess of buckle spare cooperatees with adjusting support connecting rod B's dop, under the state of use, buckle spare makes adjusting support connecting rod B's dop chucking in draw-in groove B to make the seat frame fixed.
The beneficial effects of the invention are as follows: the electric stair climbing chair with the eight-fold folding mechanism has compact structural design, and the volume of the electric stair climbing chair is only one fifth of that of the original electric stair climbing chair through the improvement of 8 folding components, so that the popularization rate of the electric stair climbing chair is improved.
Drawings
FIG. 1 is a schematic view of the overall construction of an electric stair climbing chair with an eight fold mechanism of the present invention;
FIG. 2 is a schematic diagram of the control box of the electric stair chair with the eight-fold mechanism according to the present invention;
FIG. 3 is a schematic view of a pull rod structure of an electric stair climbing chair with an eight-fold mechanism according to the present invention;
FIG. 4 is a schematic view of a pull rod positioning assembly of an electric stair chair with an eight fold mechanism according to the present invention;
FIG. 5 is a schematic illustration of a back bar construction of an electric stair chair with an eight fold mechanism according to the present invention;
FIG. 6 is a schematic diagram II of a back rest bar configuration of an electric stair climbing chair with an eight fold mechanism according to the present invention;
FIG. 7 is a first seat frame construction of an electric stair chair with an eight fold mechanism;
FIG. 8 is a second seat frame construction of an electric stair chair with an eight fold mechanism;
FIG. 9 is a block diagram of a foot rest of an electric stair chair with an eight fold mechanism;
FIG. 10 is an enlarged view of the foot rest in place;
FIG. 11 is a schematic view of the track structure of an electric stair chair with an eight fold mechanism;
FIG. 12 is a schematic view of an armrest A of an electric stair chair with an eight fold mechanism;
FIG. 13 is a schematic view of an armrest B of an electric stair chair with an eight fold mechanism;
FIG. 14 is a schematic view of a seat receiving mechanism of an electric stair chair with an eight fold mechanism;
FIG. 15 is a schematic illustration of a folded electric stair chair with an eight fold mechanism;
the components in the drawings are marked as follows:
1 is a control box, 2 is a pull rod, 3 is a backrest rod, 4 is a seat frame, 5 is a foot rest, 6 is a crawler storage mechanism, 601 is a crawler, 602 is a push rod, 603 is a rotating shaft, 604 is a pull rod, 7 is a handrail A,701 is a handrail B,8 is a seat storage mechanism, 801 is a seat support bottom plate, 802 is a seat front support
1_1 A control box cavity;
2_1 is a backrest cross rod A,2_2 is an auxiliary pull rod, 2_3 is a handle, 2_4 is a positioning latch head, 2_5 is a spring stop, 2_6 is a steel wire rope connecting piece, 2_7 is a transition connecting pin, 2_8 is a latch seat and 2_9 is a positioning screw; 2_10 square clamping blocks and 2_11 rope heads;
3_1 is a special-shaped pipe upright post, 3_2 is an armrest abnormal groove, 3_4 is a rectangular pipe beam B,3_5 is an aluminum plate, 3_6 is a rectangular pipe beam C,3_7 is a rectangular pipe beam A, and 3_8 is a hand push rod limiting device;
4_1 mount tube, 4_2 mount a,4_3 mount B,4_4 positioning sleeve a,4_5 mount shaft, 4_6 positioning sleeve B,4_7 mount U tube;
5_1 foot rest surfaces, 5_2 friction strips, 5_3 foot rest rotating shafts, 5_4 rotating sleeves and 5_5 hanging pieces;
A 6_1 aluminum plate, 6_2 aluminum grooves, 6_3 aluminum plate shaft rotating piece;
7_1 of a handrail, 7_2 of a rotating wheel, 7_3 of a chuck, 7_4 of a clamping seat, 7_5 of a handrail fixing sleeve and 7_6 of a controller;
8_1 connectors a,8_2 front support a,8_3 are adjusting support B,8_4 adjusting support connecting rod a,8_5 are adjusting support connecting rod B,8_6 are underframe, 8_7 are underframe groove, 8_8 clamping groove a,8_9 clamping groove B,8_10 clamping piece and 8_11 fixing spring.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Referring to fig. 1 to 15, an embodiment of the present invention includes:
The electric stair climbing chair with the eight-fold mechanism comprises: eight improvements are made to the seat pan, back rest, track, front wheel, rear wheel, track motor, armrest, foot rest structure, track wheel, push handle, electric stair climbing chair, improvement in control box, improvement in tie rod, improvement in back rest bar, improvement in seat frame, improvement in foot rest, improvement in track storage mechanism, improvement in armrest, and improvement in seat storage mechanism.
The eight improved mechanisms can realize the folding function, so that the popularization rate of the electric stair climbing chair is improved, the application range is wide, and the volume after storage is one sixth to one fifth of the volume in the use state.
The control box, the control box adopts the cuboid structure, control panel has been set up on the control box, electronic circuit board has been set up in the control box, through the operation of control box control track, set up the cavity structure on the control box, embedded the pull rod in the cavity, the control box can do 90 degrees changes along the pull rod, under operating condition, control box and pull rod are perpendicular, under folding state, control box and pull rod keep parallelism, the embedding is inside the pull rod, a preferred technical scheme has set up the colloid friction sleeve in the control box cavity, be used for increasing the frictional force of control box and pull rod, make the control box keep the clamping force on the pull rod, the folding volume that can effectively reduce the stair chair of control box, not mention in a novel electric stair climbing car literature, the reduction of control box folding volume, make electric stair climbing chair more static.
The pull rod adopts an inverted U-shaped cylinder structure, the pull rod is arranged in the backrest rod, the pull rod can move up and down along the backrest rod, so that expansion of the pull rod is formed, a backrest cross rod A is arranged between the two backrest rods, two ends of the backrest cross rod A are of hollow structures, a handle is arranged at the middle position of the backrest cross rod A, a pull rod positioning assembly is arranged in the backrest cross rod A, positioning latch heads are arranged at two ends of the pull rod positioning assembly, the positioning latch heads are in contact with U-shaped tubes of the pull rod, and opening and stopping of the pull rod are realized through friction force between the positioning latch heads and the U-shaped tubes of the pull rod.
The middle of the pull rod positioning assembly is provided with a bolt seat, the bolt seat is of a cylindrical structure, the bolt seat is provided with a positioning screw rod, meanwhile, a transitional connecting pin is arranged, the transitional connecting pin corresponds to the handle in the middle of the backrest cross rod A in position, two ends of the bolt seat are respectively provided with a square clamping block and a rope head, the rope heads are clamped by the square clamping blocks, the outer ends of the rope heads are connected with spring stop blocks, spring columns are arranged in the spring stop blocks, the outer ends of the spring columns are provided with positioning bolt heads, the tension of the transitional connecting pin is given through the handle, the traction of the steel rope connecting pieces is realized, under the loosening state, the U-shaped pipe is positioned in the backrest rod due to the mechanical pressure of the spring, the separation of the positioning bolt heads and the U-shaped pipe is realized under the downward pressing state of the handle, so that the up-down movement of the pull rod is realized, and the up-down expansion function of the pull rod is completed by means of the handle.
The auxiliary pull rod is also arranged on the pull rod, and the whole movement of the stair climbing chair is convenient through the auxiliary pull rod.
The backrest rod, as shown in fig. 5, comprises two special-shaped tube stand columns, wherein the length of each special-shaped tube stand column is preferably 30 mm, the width of each special-shaped tube stand column is preferably 50 mm, the height of each special-shaped tube stand column is preferably 785 mm, the upper end of each special-shaped tube stand column is provided with an armrest special-shaped groove, the length of each armrest special-shaped groove is preferably 28 mm, the width of each armrest special-shaped groove is 48 mm, the height of each armrest special-shaped groove is 30 mm, a rectangular tube cross beam A, a rectangular tube cross beam B and a rectangular tube cross beam C are respectively arranged between the two special-shaped tube stand columns from top to bottom, the rectangular tube cross beam A is equal to the backrest cross beam A, and a hand push rod limiting device is arranged in the middle position of the rectangular tube cross beam A.
The inboard of foreign tube stand lower extreme has set up aluminum plate, has set up recess and draw-in groove on the aluminum plate, and aluminum plate is corresponding with seat receiving mechanism.
As shown in fig. 6, another modification is made to the backrest rod, in which the profile tube upright post is a two-layer nested hollow tube, including an inner tube and an outer tube, and the height of the backrest rod is reduced by moving the inner tube up and down in the outer tube.
The seat frame comprises a seat frame pipe, wherein the seat frame pipe comprises a U-shaped opposite pipe, a positioning sleeve A and a positioning sleeve B are arranged at two ends of the seat frame pipe, the positioning sleeve A and the positioning sleeve B are of cylindrical structures and are connected with a backrest rod into a whole through a connecting piece, a seat frame shaft is arranged between the positioning sleeve A and the positioning sleeve B, the seat frame shaft is of a cylindrical structure, the seat frame pipe can rotate along the seat frame shaft, the seat frame pipe is perpendicular to the seat frame shaft in a working state, the seat frame is unfolded, the seat frame pipe is parallel to the seat frame shaft in a furling state, and the seat frame is furled.
Still set up support A and support B on the seat frame pipe, support A and support B have connected the support respectively, realize supporting function to the seat frame pipe through the support to, set up seat frame U pipe on the seat frame pipe, seat frame U pipe nestification is intraductal at the seat frame, obtains suitable seat frame usable floor area through flexible seat frame U pipe.
The foot rest comprises a rotating sleeve, wherein a foot rest surface is arranged in the middle of the rotating sleeve, friction stripes are arranged on the foot rest surface, the rotating sleeve is connected with a foot rest rotating shaft through a hanging piece, the rotating sleeve can rotate by 1 to 170 degrees along the foot rest rotating shaft, under the action of gravity of the rotating sleeve and the baffle pulling force of the foot rest rotating shaft in a working state, the foot of a user is placed, under the furling state, the rotating sleeve is folded upwards by means of gravity, and the foot rest is tiled and folded by means of the principle of the mechanical gravity center, so that the foot rest is not provided by CN201610782477.9, application numbers CN201610191657.X, CN03267998.X, CN201510396206.5 and CN 201520056421.6.
The track containing mechanism comprises two aluminum plates, an aluminum groove is formed in each aluminum plate, the preferable length of each aluminum plate is 32 mm, the preferable width of each aluminum plate is 3 mm, the preferable height of each aluminum plate is 366 mm, 4 rotating shaft holes are formed in one end of each aluminum plate, aluminum plate rotating members are connected to the rotating shaft holes, the length of each aluminum plate rotating member is 6 mm, the width of each aluminum plate rotating member is 38 mm, the height of each aluminum plate rotating member is 81.5 mm, the two aluminum plates can rotate by 0-90 degrees along each aluminum plate rotating member, the angle between each aluminum plate and each aluminum plate rotating member is 30-60 degrees under the working state, the included angle is adjusted according to actual conditions, the aluminum plates are parallel to each aluminum plate rotating member under the folding state, and the tracks are folded on the backrest rods.
The handrail A comprises a handrail handle, the handrail handle is of a cuboid structure, the tail end of the handrail handle is fixed on a clamping seat through a rotating wheel, the clamping seat is connected with a chuck, the chuck is of a scale disc structure, the handrail A is arranged on a backrest rod through a handrail fixing sleeve and can rotate by 0 to 180 degrees through the rotating wheel, the handrail A is perpendicular to the backrest rod in a working state, the handrail A is parallel to the backrest rod in a furling state, and the handrail A and the backrest rod are clamped into a whole.
The handrail B comprises a handrail handle, the handrail handle is of a cuboid structure, the tail end of the handrail handle is fixed on the clamping seat through the rotating wheel, the clamping seat is connected with the clamping disc, the clamping disc is of a scale disc structure, the handrail B is arranged on the backrest rod through the handrail fixing sleeve, the handrail B rotates through the rotating wheel and can rotate by 0 to 180 degrees, under the working state, the handrail A is perpendicular to the backrest rod, under the furling state, the handrail B is parallel to the backrest rod, the handrail B and the backrest rod are clamped into a whole, a controller is arranged on the handrail B, and the functions of advancing and retreating of the electric stair climbing chair under the flat ground state are realized through the controller.
The seat storage mechanism can enable the seat frame to be close to parallel to the backrest rod in a folded state, and can support the seat frame in a use state.
The seat storage mechanism is shown in fig. 14 and comprises a seat frame, wherein a connecting piece A is arranged on the seat frame and connected with a front support A, the front support A is of two cylinder structures, the front support A is connected with a bottom frame into a whole through a rotating shaft, a through hole is formed in the middle of the seat frame and connected with an adjusting support connecting rod A through the through hole, the adjusting support connecting rod A is connected with an adjusting support connecting rod B through an adjusting support B, and the adjusting support connecting rod A, the adjusting support connecting rod B and the adjusting support B jointly form a shape like a Chinese character 'kou'.
The adjusting bracket connecting rod A is connected with the seat frame through a fixed spring.
The middle of the adjusting support connecting rod B is of a cylindrical structure, and cylindrical clamping heads are arranged at two ends of the adjusting support connecting rod B.
The underframe adopts a cuboid structure, the underframe is provided with an underframe groove, two ends of the underframe groove are respectively provided with a clamping groove A and a clamping groove B, the clamping head of the adjusting support connecting rod B can horizontally move in the underframe groove, the clamping head of the adjusting support connecting rod B is positioned in the clamping groove B in a working state, and the clamping head of the adjusting support connecting rod B is positioned in the clamping groove A in a furling state, which is the key point of the invention, and the furling of the seat frame is realized by the movement of the clamping head of the adjusting support connecting rod B.
Under operating condition, the clamping head of the adjusting bracket connecting rod B is positioned in the clamping groove B, the front bracket A and the underframe are in a crossed vertical supporting state, the clamping head of the adjusting bracket connecting rod B is positioned in the clamping groove A, the bracket A and the underframe are in a parallel state, and meanwhile, the seat frame and the backrest rod are in a parallel state, so that the electric stair climbing chair can be stored.
Simultaneously, set up two buckle spare on the chassis, set up the recess on the buckle spare, the recess of buckle spare cooperatees with adjusting support connecting rod B's dop, under the state of use, buckle spare makes adjusting support connecting rod B's dop chucking in draw-in groove B to make the seat frame fixed.
Experimental data:
Comparison of similar inventive products: the invention discloses a novel electric stair climbing vehicle, which is characterized in that CN201610782477.9 and an automatic stair climbing chair CN201610191657.X only disclose two folding places of a crawler storage mechanism and a handrail, two ends of a special chassis groove are respectively provided with a clamping groove A and a clamping groove B, so that a seat is stably stored, the novel electric stair climbing vehicle is not provided with the product, meanwhile, a pull rod positioning assembly enables the pull rod to be conveniently expanded, the novel electric stair climbing vehicle is special in the product, and the folding rate is only one sixth of the using volume for 75 kg of an adult, and the novel electric stair climbing vehicle, CN201610782477.9 and the automatic stair climbing chair CN201610191657.X are only one third to one half of the original folding volume.
Aiming at similar products: portable folding stretcher wheelchair, application number: CN0326998. X, a multi-functional electric stair climbing vehicle CN201510396206.5, simple and easy rescue stair climbing wheelchair CN201520056421.6, the improvement of control box is not related to the above-mentioned product, the improvement of seat frame, the improvement of foot rest, the improvement of handrail and the improvement of seat receiving mechanism, above-mentioned three product folding volume does not accomplish extremely, simple and easy rescue stair climbing wheelchair is star wheel mechanism that the market gradually obsolete, a multi-functional electric stair climbing vehicle can not realize walking on flat ground, only simple stair climbing auxiliary function, no handrail controller, rely on battery power to go forward, light folding stretcher wheelchair does not climb the stair function at present, not same trade field, for this reason, eight parts of eight folding mechanism all exert an influence to electric stair climbing chair's volume reduction, guarantee for the company is beaten into the European and American market.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes that may be used in the present specification and drawings are infringement.
Claims (4)
1. An electric stair climbing chair with an eight fold mechanism comprising: the chair is characterized in that eight aspects of improvements are made on an electric stair climbing chair, namely, an improvement on a control box, an improvement on a pull rod, an improvement on a backrest rod, an improvement on a seat frame, an improvement on a foot rest, an improvement on a crawler storage mechanism, an improvement on an armrest and an improvement on a seat storage mechanism, the control box adopts a cuboid structure, a control panel is arranged on the control box, an electronic circuit board is arranged in the control box, the operation of the crawler is controlled through the control box, a concave cavity structure is arranged on the control box, a pull rod is embedded in the concave cavity, the control box can change by 90 degrees along the pull rod, the pull rod adopts an inverted U-shaped cylinder structure, the pull rod is arranged in the backrest rod, and can move up and down along the backrest rod, so that the expansion of the pull rod is formed, a backrest cross rod A is arranged between two backrest rods, two ends of the backrest cross rod A are hollow structures, handles are arranged at the middle positions of the backrest cross rod A, a pull rod positioning assembly is arranged in the backrest cross rod A, positioning latch heads are arranged at two ends of the pull rod positioning assembly and are in contact with U-shaped pipes of the pull rods, a latch seat is arranged in the middle of the pull rod positioning assembly, the latch seat is of a cylindrical structure, a positioning screw rod is arranged on the latch seat, meanwhile, a transition connecting pin is arranged, the transition connecting pin corresponds to the handles in the middle of the backrest cross rod A in position and is consistent, steel wire rope connecting pieces are arranged at two ends of the latch seat, square clamping blocks and rope heads are respectively arranged at two ends of the steel wire rope connecting pieces, the rope heads are clamped by the square clamping blocks, spring stoppers are arranged at the outer ends of the rope heads in a connecting mode, spring columns are arranged in the spring stoppers, positioning latch heads are arranged at the outer ends of the spring columns, the backrest rod comprises two special-shaped tube upright posts, the upper end of each special-shaped tube upright post is provided with a handrail different groove, a rectangular tube cross beam A, a rectangular tube cross beam B and a rectangular tube cross beam C are respectively arranged between the two special-shaped tube upright posts from top to bottom, the rectangular tube cross beam A is equal to the backrest cross beam A, a hand push rod limiting device is arranged at the middle position of the rectangular tube cross beam A, an aluminum plate is arranged at the inner side of the lower end of the special-shaped tube upright post, a groove and a clamping groove are arranged on the aluminum plate, the aluminum plate corresponds to a seat containing mechanism, the special-shaped tube upright post of the backrest rod is a two-layer nested hollow tube, the special-shaped tube upright post comprises an inner layer tube and an outer layer tube, the height of the backrest rod is reduced through the up-down movement of the inner layer tube, the seat frame comprises a seat frame tube, the seat frame tube adopts a U-shaped special-shaped tube, and a positioning sleeve A and a positioning sleeve B are arranged at two ends of the seat frame tube, the positioning sleeve A and the positioning sleeve B adopt a cylindrical structure and are connected with a backrest rod into a whole through a connecting piece, a seat frame shaft is arranged between the positioning sleeve A and the positioning sleeve B and is of a cylindrical structure, a seat support A and a seat support B are also arranged on a seat frame pipe, the seat support A and the seat support B are respectively connected with a bracket, a seat support U pipe is arranged on the seat frame pipe and is nested in the seat support pipe, the foot support comprises a rotating sleeve, a foot support surface is arranged in the middle of the rotating sleeve, a crawler storage mechanism comprises two aluminum plates, an aluminum groove is arranged in each aluminum plate, 4 rotating shaft holes are arranged at one end of each aluminum plate, an aluminum plate shaft rotating piece is arranged on each rotating shaft hole in a connecting way, each handrail A comprises a handrail handle, the handrail handle is of a cuboid structure, the tail end of each handrail handle is fixed on a clamping seat through a rotating wheel, the clamping seat is connected with a chuck, the clamping chuck is of a scale disc structure, the handrail B comprises a handrail handle, the handrail is of a cuboid structure, the tail end of the handrail is fixed on the clamping seat through the rotating wheel, the clamping seat is connected with the chuck, the chuck is of a scale disc structure, the handrail B is arranged on the backrest rod through the handrail fixing sleeve, the seat accommodating mechanism comprises a seat frame, a connecting piece A is arranged on the seat frame and connected with the front support A, the front support A is of two cylinder structures, the front support A is connected with the underframe into a whole through a rotating shaft, a through hole is formed in the middle position of the seat frame and connected with the adjusting support connecting rod A, the adjusting support connecting rod A is connected with the adjusting support connecting rod B through the adjusting support B, the adjusting support connecting rod A, the adjusting support connecting rod B and the adjusting support B jointly form a 'mouth' -shaped structure, the underframe adopts a cuboid structure, underframe grooves are formed in the underframe, clamping grooves A and B are respectively formed in two ends of the underframe grooves, the clamping heads of the adjusting support connecting rod B can horizontally move in the underframe grooves, the grooves are formed in the underframe, the clamping pieces are respectively, and the grooves are matched with the clamping heads of the adjusting support connecting rod B.
2. The electric stair chair with the eight-fold mechanism according to claim 1, wherein an auxiliary pull rod is further arranged on the pull rod, and the whole stair chair is convenient to move through the auxiliary pull rod.
3. An electric stair chair with an eight fold mechanism according to claim 1, wherein a control is provided on the arm rest B.
4. The electric stair climbing chair with the eight-fold mechanism according to claim 1, wherein the middle of the adjusting bracket connecting rod B is of a cylinder structure, and two ends of the adjusting bracket connecting rod B are provided with cylindrical clamping heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281233.6A CN109907895B (en) | 2019-04-09 | 2019-04-09 | Electric stair climbing chair with eight-fold mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910281233.6A CN109907895B (en) | 2019-04-09 | 2019-04-09 | Electric stair climbing chair with eight-fold mechanism |
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| Publication Number | Publication Date |
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| CN109907895A CN109907895A (en) | 2019-06-21 |
| CN109907895B true CN109907895B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910281233.6A Active CN109907895B (en) | 2019-04-09 | 2019-04-09 | Electric stair climbing chair with eight-fold mechanism |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112220619A (en) * | 2020-05-19 | 2021-01-15 | 广州市机电高级技工学校（广州市机电技师学院、广州市机电高级职业技术培训学院） | Electric folding wheelchair capable of going up and down steps |
| CN112472441B (en) * | 2020-12-11 | 2022-12-27 | 中国人民解放军空军工程大学 | Multifunctional auxiliary wheelchair |
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| CN109907895A (en) | 2019-06-21 |
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Address after: 215000 building e, Liangfeng machinery Park, No. 3 Zhenxing Road, yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: SUZHOU IRELAND MEDICAL EQUIPMENT CO.,LTD. Country or region after: China Address before: No. 587 Yangjin Road, Jinfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province, 215600 Patentee before: SUZHOU IRELAND MEDICAL EQUIPMENT CO.,LTD. Country or region before: China |