TWM634038U - wheelchair structure - Google Patents

Abstract

This model provides a wheelchair structure, including: a mobile base with a body and a plurality of wheels, the wheels are separately installed on the body; a pivot swing frame, with a main frame and a pivot, the main frame has two second One bracket and two second brackets, the pivoting piece is arc-shaped, one end of the pivoting piece is installed on one of the second brackets, the other end of the pivoting piece is installed on the other second bracket, the pivoting piece has multiple grooves; The control assembly has a bolt, a transmission part, a cable and a control handle. The bolt is installed on the body to move back and forth. The bolt has a set end and an insertion end opposite to each other. The transmission part is pivotable. Assembled on the body, the transmission part has a driving end and a driving end, the driving end is connected to the cable, the assembly end is connected to the driving end, and the cable is connected to the control handle; an upper frame is installed on the main frame.

Description

wheelchair structure

The present invention relates to a personal motor vehicle, in particular to a tiltable personal wheelchair.

Generally, wheelchairs with tilting functions are used for patients or elderly people who are highly dependent on care. The back of the wheelchair can reduce the pressure on the back of the occupant. Different angles and positions of the wheelchair can be beneficial to the daily life of the occupants. It is known that the wheelchair with reclining function drives the seat through the air pressure rod, so that the seat can pivot according to the fixed pivot center. However, the service life of the air pressure rod is short, and the stability is poor, and there may be oil leakage. Therefore, a wheelchair with good stability, low loss and tilting function is needed.

The present invention provides a wheelchair structure, the main purpose of which is to provide a wheelchair with good stability, low wear and tear and tilting function.

In order to achieve the above-mentioned purpose, the new wheelchair structure includes: a mobile base with a body and a plurality of wheels, and the wheels are respectively installed on the body; a pivot frame with a main frame and a pivot, The main frame has two first brackets and two second brackets. The pivoting member is arc-shaped. One end of the pivoting member is installed on one of the second brackets, and the other end of the pivoting member is installed on the other. the second branch Frame, the pivot swing piece has an outer arc side, the outer arc side has an outer arc end face, the outer arc end face is facing the body, and the outer arc end face has a plurality of grooves; a control component has a latch, a transmission A piece, a cable and a control handle, the bolt is mounted on the body to move back and forth, the bolt has an opposite assembly end and an insertion end, the transmission member is pivotally assembled on the body The main body, the transmission part has a transmission end and a driving end, the transmission end is connected to the cable, the set end is connected to the driving end, the cable is also connected to the control handle, and the control handle is used to control the The cable drives the transmission part to pivot, the insertion end of the bolt is used to enter or leave the groove; and an upper frame is installed on the main frame.

It can be seen from the above that when the user wants to adjust the angle of the main frame, he only needs to press the control handle to control the cable to drive the transmission member to pivot, and further drive the bolt to move along the height direction through the driving end. The insertion end of the bolt is far away from the groove. At this time, the pivoting member and the main frame can freely pivot and tilt. When the main frame is adjusted to the angle required by the user, the user only needs to Let go of the control handle, the elastic member will push the bolt back, so that the insertion end of the bolt will enter the groove again, so as to fix the main frame and prevent the main frame from pivoting again. Cooperate with the pivot to achieve the purpose of adjusting the angle, and overcome the lack of poor stability and high wear rate.

10: Mobile base

11: Ontology

12: wheel body

20: Pivot rack

21: Main frame

211: The first bracket

2111: head end

2111A: open end

2111B: Second through hole

2112: Tail end

211A: the first through hole

212: second bracket

2121: The first adjustment segment

2121A: first end

2121B: second end

2122: set segment

2122A: first side end

2122B: second side end

2123: The second adjustment segment

2123A: third end

2123B: Fourth terminal

22: pivot ornaments

221: inner arc side

221A: Inner arc end face

222: outer arc side

222A: Outer arc end face

223: Groove

231: First Bolt

232: The first nut

241:Second Bolt

242: second nut

30: Control components

31: Latch

311: insert segment

312: Set section

313: step surface

31A: Assembly terminal

31B: plug-in terminal

32: Transmission parts

321: drive end

322: drive end

323: Pivot

33: cable

34: Control handle

35: Combination

36: Elastic parts

40: support frame

41: jamb

42: rolling parts

50: Auxiliary support

60: upper frame

61: Chair back

611: set column

62: Cylinder base

70: Combining components

71: rear transport piece

72: Assembling slices

73: The first locking piece

74: The second locking piece

80: tripod

81: Combined segment

811: perforation

82: The third locking piece

H1: The first adjustment hole

H2: The first corresponding hole

H3: Second adjustment hole

H4: The second corresponding hole

X: direction of travel

Y: Horizontal

Z: height direction

Fig. 1 is a three-dimensional view of the structure of the new wheelchair.

Fig. 2 is a partial schematic diagram of the structure of the new wheelchair.

Fig. 3 is a sectional view of 3-3 in Fig. 2 .

Figure 4 is a schematic diagram of the use state of the new model.

Figure 5 is a schematic diagram of the new model after adjustment.

Figure 6 is a partial exploded view of the new model.

Fig. 7 is a partial sectional view of the present invention.

Fig. 8 is a partial schematic diagram of the present invention.

Figure 9 is a schematic diagram of the adjustment of the new model.

Fig. 10 is a schematic diagram of a preferred embodiment of the present invention.

This model provides a wheelchair structure, please refer to Figures 1-9, including: a mobile base 10, with a body 11 and a plurality of wheels 12, the wheels 12 are respectively installed on the body 11; a pivot The frame 20 has a main frame body 21 and a pivoting part 22. The main frame body 21 is a rectangular frame body. The main frame body 21 has two first brackets 211 and two second brackets 212. The first bracket 211 . The second brackets 212 are cylindrical tubes, the two first brackets 211 extend along a traveling direction X, the two second brackets 212 extend along a transverse direction Y, and the traveling direction X is perpendicular to the transverse direction Y. There is a distance between the two first brackets 211, the two second brackets 212 are located between the two first brackets 211, the pivoting member 22 is an arc-shaped sheet, and one end of the pivoting member 22 is installed In one of the second brackets 212, the other end of the pivoting member 22 is installed on the other second bracket 212. The pivoting member 22 has an opposite inner arc side 221 and an outer arc side 222. The inner arc side 221 has an inner arc end face 221A, the outer arc side 222 has an outer arc end face 222A, the outer arc end face 222A is facing the body 11, and the outer arc end face 222A has a plurality of grooves 223, and the grooves 223 are etc. arrangement of intervals; A control assembly 30 has a pin 31, a transmission member 32 and a cable 33. The pin 31 is mounted on the main body 11 so as to move back and forth along a height direction Z. The height direction Z is aligned with the travel direction X, The horizontal direction Y is vertical. The bolt 31 has an opposite assembly end 31A and an insertion end 31B. The transmission member 32 is pivotably assembled on the body 11. The transmission member 32 has a transmission end 321 and an insertion end 31B. The driving end 322, the driving end 321 is connected to the cable 33, the assembly end 31A of the bolt 31 is connected to the driving end 322, the cable 33 is connected to a control handle 34, and the control handle 34 controls the cable 33 And drive the transmission member 32 to pivot, and further drive the bolt 31 to displace along the height direction Z through the driving end 322, so that the insertion end 31B of the bolt 31 can enter the groove 223 or move away from the groove 223; In a preferred embodiment, the pin 31 is roughly cylindrical, and the pin 31 has an inserting section 311 and a set section 312 connected thereto, the assembly end 31A is located on the set section 312, and the inserting section 312 The end 31B is located at the insertion section 311, the diameter of the insertion section 311 is longer than the diameter of the sleeve section 312, so that there is a first-stage surface 313 between the insertion section 311 and the sleeve section 312, and there is also a A coupling part 35, the coupling part 35 is locked on the body 11, the transmission part 32 has a pivot part 323 between the transmission end 321 and the driving end 322, the pivot part 323 is pivotally arranged on the The coupling part 35 enables the transmission part 32 to pivot relative to the main body 11, and also has an elastic part 36, one end of the elastic part 36 abuts against the step surface 313, and the other end of the elastic part 36 abuts against the coupling part 35, the elastic member 36 is used to provide the kinetic energy for the reset of the bolt 31.

In a preferred embodiment, it further includes: a support frame 40 fixedly combined with the body 11, the support frame 40 has two side columns 41 and a rolling element 42 between the two side columns 41, the rolling element 42 Can be rotated relative to the two side columns 41, the number of the support frame 40 is two, and the two support frames 40 are respectively located on the latch 31 along the opposite sides of the horizontal direction Y, so that the two support frames 40 and the latches 31 are arranged along the horizontal direction Y; an auxiliary support member 50 is generally an arc-shaped sheet, and the shape of the auxiliary support member 50 is the same as The pivoting member 22 is similar, one end of the auxiliary supporting member 50 is installed on one of the second brackets 212, the other end of the auxiliary supporting member 50 is installed on the other second bracket 212, the auxiliary supporting member 50 The number is two, and the two auxiliary supports 50 are located on opposite sides of the pivoting member 22 along the transverse direction Y, so that the two auxiliary supports 50 and the pivoting member 22 are arranged along the transverse direction Y, and one of the auxiliary supports The member 50 passes through and abuts against one of the support frames 40, the other auxiliary support member 50 passes through and abuts against the other support frame 40, and the two auxiliary support members 50 respectively abut against one of the support frames 40 The rolling element 42 makes the two auxiliary supporting elements 50 swing more smoothly.

An upper frame 60 is installed on the main frame body 21, the upper frame 60 is connected to one end of the main frame body 21 along the traveling direction X, the upper frame 60 includes a seat back 61, the The chair back 61 has two sets of pillars 611, and the upper frame 60 is used to provide strength for supporting the user's upper body.

In the preferred embodiment of the present invention, please refer to Fig. 6-9 shown, this second bracket 212 has a first adjusting section 2121 and a set of section 2122 in addition, and one end of the set section 2122 is a first Side end 2122A, the first adjustment section 2121 has a first end 2121A and a second end 2121B opposite, the first end 2121A is connected to one of the first brackets 211, the second end 2121B is connected to the assembly section The first side ends 2122A of 2122 are nested with each other, the first adjusting section 2121 can be displaced along the transverse direction Y, and then the two first brackets 211 can be adjusted along the transverse direction Y. The distance to Y, whereby the invention can adjust the width of the main frame 21 along the horizontal direction Y according to the user's body shape, fat or thin, so as to provide the user with the best riding experience.

In this embodiment, the first adjustment section 2121 has a plurality of first adjustment holes H1 along the transverse direction Y, and the assembly section 2122 has a first corresponding hole H2, and also has a first bolt 231 and a first screw. The cap 232, the assembly section 2122 is sleeved on the second end 2121B of the first adjustment section 2121, the first bolt 231 is passed through one of the first adjustment hole H1 and the first corresponding hole H2 and is connected with the first adjustment hole H1 and the first corresponding hole H2. The first nut 232 is screwed together to fix the distance between the two first brackets 211 along the transverse direction Y.

Preferably, the second bracket 212 also has a second adjustment section 2123, the second adjustment section 2123 has a third end 2123A and a fourth end 2123B opposite to each other, the third end 2123A is connected to the other third end 2123A. A bracket 211, the assembly section 2122 has a second side end 2122B opposite to the first side end 2122A, the fourth end 2123B is sleeved with the second side end 2122B of the assembly section 2122, the second The adjustment section 2123 can be displaced along the transverse direction Y, and then the distance between the two first brackets 211 along the transverse direction Y can be adjusted.

In this embodiment, the second adjustment section 2123 has a plurality of second adjustment holes H3 along the transverse direction Y, and the assembly section 2122 has a second corresponding hole H4, and also has a second bolt 241 and a second screw. Cap 242, the assembly section 2122 is sheathed on the fourth end 2123B of the second adjustment section 2123, the second bolt 241 is passed through one of the second adjustment hole H3 and the second corresponding hole H4 and is connected with The second nut 242 is screwed together to fix the distance between the two first brackets 211 along the transverse direction Y.

In a preferred embodiment of the present invention, please refer to Figures 1, 8-9, the upper frame 60 can adjust its position along the direction of travel X relative to the main frame body 21, and the two first brackets 211 respectively has a plurality of first through holes 211A, and the first through holes 211A are arranged along the traveling direction X. The upper frame 60 has the two sets of pillars 611 and the two cylinder bases 62, one of which is set The column 611 and one of the cylinder bases 62 are located on one side of the main frame 21 along the transverse direction Y, and the other set of columns 611 and the other cylinder base 62 are located on the main frame 21 along the transverse direction The other side of Y has two combination components 70, wherein one of the combination components 70 corresponds to one of the first brackets 211, and the other combination component 70 corresponds to the other first bracket 211. The combination components 70 include A rear transport piece 71, a group of setting pieces 72, two first locking elements 73, and two second locking elements 74, the rear transportation piece 71 and the set of setting pieces 72 are clamped on the first bracket 211 along the transverse direction Y The two first locking elements 73 pass through the rear transportation piece 71, the assembly piece 72 and the first through hole 211A, and one of the second locking elements 74 passes through the rear transportation piece 71, The set of pillars 611, the set of pieces 72, and the other second locking member 74 are pierced through the rear transport piece 71, the cylinder base 62, and the set of pieces 72, whereby this creation can be used according to Adjust the position of the upper frame 60 along the traveling direction X according to the body shape and foot length of the user, so as to allow enough space for the user's buttocks and legs, thereby providing the user with the best riding experience.

In a preferred embodiment of the present invention, please refer to Figures 1, 6, and 10, the two first brackets 211 have an opposite head end 2111 and a tail end 2112, and the first through holes 211A are separated from the The tail end portion 2112 is closer, and the first through holes 211A are farther away from the head end portion 2111. The head end portion 2111 has an opening 2111A, and also has a tripod 80, and the tripods 80 can be opposite to the first end portion 2111. A bracket 211 adjusts the position to change the position of the legs 80 along the direction of travel X, the legs 80 have a combination section 81, the combination section 81 is nested with the first bracket 211, so that the combination The section 81 is movably combined in the head end 2111, whereby the tripods 80 can adjust their positions based on different user's body shapes and foot lengths. Furthermore, they can be According to the professional assessment of the physical therapist, the angle of the back of the chair 61 and the position of the tripod 80 are matched to match the body shape of the user, so as to provide the best riding experience.

Preferably, the combined section 81 is inserted into the end opening 2111A, the first brackets 211 have a plurality of second through holes 2111B, and the second through holes 2111B extend along the transverse direction Y, and the combined section 81 has At least one through hole 811 extends along the transverse direction Y, and at least one third locking member 82 is disposed through the second through hole 2111B and the through hole 811 .

The above is the description of the configuration of each main component of the embodiment of the invention, as for the action mode of the invention, that is, the description of the function is as follows.

When the user wants to adjust the angle of the main frame 21, he only needs to press the control handle 34 to control the cable 33 to drive the transmission member 32 to pivot, and further drive the pin 31 to move along the height direction Z through the driving end 322 At this time, the insertion end 31B of the bolt 31 is far away from the groove 223. At this time, the pivot member 22 and the main frame body 21 can freely pivot and tilt, and the tiltable angle of the main frame body 21 can be adjusted. Between -4 degrees to 49 degrees, the above-mentioned -4 degrees to 49 degrees are based on the ground plane, when the angle is positive, as shown in Figure 5, the main frame 21 is connected to one end of the upper frame 60 Lower than the other end of the main frame body 21, when the main frame body 21 is adjusted to the angle required by the user, the user only needs to release the control handle 34, and the elastic member 36 will push the latch 31 along the height The direction Z is reset, so that the insertion end 31B of the bolt 31 enters the groove 223 again, so as to fix the main frame body 21 and prevent the main frame body 21 from pivoting again. In this way, this creation can be adapted according to the body shape and feet of different users. Adjust the inclination angle of the main frame body 21 according to the length and operation mode. For example, the inclination angle can be increased when resting, so as to meet various needs of users and provide the best riding experience.

In addition, when the user wants to adjust the width of the main frame 21 along the transverse direction Y, he only needs to loosen the first bolt 231 and the first nut 232, and pull the first bracket 211 to change The distance between the two first brackets 211, after the adjustment is completed, the first bolt 231 is reinserted in the first adjustment hole H1 and the first corresponding hole H2, and screwed again through the first nut 232. Lock on the first bolt 231 to fix the distance between the two first brackets 211 .

Furthermore, when the user wants to adjust the position of the upper frame 60 along the traveling direction X, he only needs to release the first locking member 73 and adjust the rear transport piece 71 and the assembly piece 72 along the direction X. When the position in the traveling direction X is adjusted, the first locking member 73 is reinserted in the first through hole 211A, the rear transport piece 71 , and the assembly piece 72 to fix the upper frame 60 .

In addition, referring to FIG. 10 , when the user wants to adjust the position of the tripods 80 along the traveling direction X, he only needs to release the third locking member 82 and adjust the tripods 80 along the direction X. After the position in the traveling direction X is adjusted, the third locking member 82 is reinserted in the through hole 811 and the second through hole 2111B to fix the legs 80 .

10: Mobile base

11: Ontology

20: Pivot rack

21: Main frame

211: The first bracket

211A: the first through hole

212: second bracket

2121: The first adjustment segment

2122: set segment

2123: The second adjustment segment

22: pivot ornaments

221: inner arc side

221A: Inner arc end face

222: outer arc side

222A: Outer arc end face

223: Groove

30: Control components

31: Latch

311: insert segment

312: Set section

32: Transmission parts

321: drive end

322: drive end

323: Pivot

33: cable

35: Combination

36: Elastic parts

40: support frame

41: jamb

42: rolling parts

50: Auxiliary support

60: upper frame

611: set column

62: Cylinder base

70: Combining components

71: rear transport piece

72: Assembling slices

73: The first locking piece

74: The second locking piece

X: direction of travel

Y: Horizontal

Z: height direction

Claims (12)

A wheelchair structure comprising: A mobile base has a main body and a plurality of wheels, and the wheels are respectively mounted on the base body; A pivot swing frame has a main frame body and a pivot swing piece, and the main frame body has two first brackets and Two second brackets, the pivoting part is arc-shaped, one end of the pivoting part is installed on one of the second brackets, the other end of the pivoting part is installed on the other second bracket, and the pivoting part has a The outer arc side, the outer arc side has an outer arc end face, the outer arc end face is facing the body, and the outer arc end face has a plurality of grooves; A control assembly has a pin, a transmission part, a cable and a control handle, the plug The pin is mounted on the body so that it can move back and forth. The pin has a set end and an insertion end opposite to each other. The transmission part is pivotally mounted on the body. The transmission part has a drive end and a The driving end, the driving end is connected to the cable, the set end is connected to the driving end, the cable is connected to the control handle, the control handle is used to control the cable and drive the transmission part to pivot, the bolt the inserting end for entering into or away from the groove; and A vehicle frame is mounted on the main frame body. The wheelchair structure according to claim 1, wherein, the two first brackets extend along a traveling direction, the two second brackets extend along a transverse direction, the traveling direction is perpendicular to the transverse direction, and the latch can be moved along a The height direction moves back, and the height direction is perpendicular to the traveling direction and the transverse direction. The wheelchair structure as described in claim 1, wherein, the bolt has an insertion section and a set section connected thereto, the set end is located in the set section, and the insertion end is located in the insert section, so that There is a stepped surface between the inserting section and the sleeve section, and there is also a joint, the joint is locked on the body, and the transmission part has a pivoting part between the driving end and the driving end , the pivoting part is pivotally arranged on the joint part, and has an elastic part, one end of the elastic part abuts against the step surface, and the other end of the elastic part abuts against the joint part. The wheelchair structure as described in claim 1, wherein, there is also a support frame fixedly combined with the body, the support frame has two side columns and a rolling element located between the two side columns, the rolling element can be rotated relative to the two side columns; An auxiliary supporting piece, which is generally arc-shaped, and one end of the auxiliary supporting piece is installed on one of the The second bracket, the other end of the auxiliary support is installed on the other second bracket, the auxiliary support is passed through the support frame, and the auxiliary support is against the rolling element of the support frame. The wheelchair structure as described in claim 2, wherein, the two second brackets respectively have a first adjustment section and a set of sections, one end of the set section is a first side end, and the first adjustment section has Opposed to a first end and a second end, the first end is connected to one of the first brackets, the second end and the first side end are sleeved together, and the first adjustment section can be displaced along the lateral direction . The wheelchair structure as described in claim 5, wherein, the first adjustment section has a plurality of first adjustment holes, the assembly section has a first corresponding hole, and also has a first bolt and a first nut. One side end is sheathed on the second end of the first adjustment section, and the first bolt passes through one of the first adjustment hole and the first corresponding hole and is screw-locked with the first nut. The wheelchair structure as described in claim 5, wherein, the second bracket has a second adjustment section, the second adjustment section has a third end and a fourth end opposite to each other, and the third end is connected to another The first bracket, the assembly section has a second side end opposite to the first side end, the fourth end is nested with the second side end of the assembly section, and the second adjustment section can be moved along the lateral displacement. The wheelchair structure as described in claim 7, wherein, the second adjustment section has a plurality of second adjustment holes along the transverse direction, the assembly section has a second corresponding hole, and also has a second bolt and a second screw. cap, the second side end is sleeved on the fourth end of the second adjustment section, the second bolt is passed through one of the second adjustment hole and the second corresponding hole and is screwed with the second nut combined. The wheelchair structure according to Claim 2, wherein the upper frame can adjust its position along the traveling direction relative to the main frame. The wheelchair structure as described in Claim 9, wherein, the two first brackets respectively have a plurality of first through holes, and the first through holes are arranged along the direction of travel, and the upper frame has two sets of columns and two Cylinder base, one of the set of columns and one of the press cylinder bases are located on one side of the main frame along the transverse direction, the other set of columns and the other of the press cylinder base are located along the main frame The other side of the transverse direction has two combined components, one of which is corresponding to one of the first brackets, and the other combined component is corresponding to the other first bracket. The combined component includes a rear transport piece, A group of setting pieces, two first locking pieces, and two second locking pieces, the rear transportation piece and the set of setting pieces are clamped on both sides of the first bracket along the transverse direction, and the two first locking pieces pass through The rear transport piece, the group of setting pieces and the first through hole, one of the second locking pieces is passed through the rear transportation piece, the set of pillars, and the group of setting pieces, and the other of the second locking piece is passed through The sheet is then transported, the base of the press cylinder, and the group are set. The wheelchair structure as described in claim 2, wherein, the two first brackets have a head end and a tail end opposite to each other, the head end has an opening at one end, and has a tripod, and the legs can be opposite to the When the position of the first bracket is adjusted, the legs have a combination section, and the combination section and the first bracket are sleeved together. The wheelchair structure according to claim 11, wherein the combined section is inserted into the end opening, the first brackets have a plurality of second through holes, the combined section has at least one through hole, and at least one third locking piece , the third locking member passes through the second through hole and the through hole.

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