CN201921020U

CN201921020U - Wheelchair with adjustable headrest

Info

Publication number: CN201921020U
Application number: CN2010206976575U
Authority: CN
Inventors: 王仰昆
Original assignee: VERMEIREN (SUZHOU) MEDICAL INSTRUMENTS CO Ltd
Current assignee: VERMEIREN (SUZHOU) MEDICAL INSTRUMENTS CO Ltd
Priority date: 2010-12-28
Filing date: 2010-12-28
Publication date: 2011-08-10
Anticipated expiration: 2020-12-28

Abstract

A wheelchair with an adjustable headrest comprises a frame, a backrest, a seat and wheels. The backrest and the seat are arranged on the frame, the wheels are rotationally connected with the frame, a support used for fixing the headrest is disposed on the backrest and consists of a first rod, a second rod and a fixing shaft, the first rod is disposed on the backrest, the second rod is rotationally connected with the first rod, the fixing shaft is rotationally connected with the second rod, a guide rail is fixedly connected onto the headrest, a slider is connected onto the guide rail in a sliding fit manner, and a sleeve is fixedly connected onto the slider and rotationally sleeved on the fixing shaft. By means of changing relative positions of all connectors of the wheelchair, a user can sit in the most comfortable gesture, and the wheelchair is simple in structure and can be widely popularized and utilized.

Description

A kind of wheelchair with changeable cushion

Technical field

This utility model relates to a kind of wheelchair with head rest.

Background technology

At present, most wheelchairs is without a head by device, owing to there is not head rest device no, user is sat of long duration on wheelchair, and it is tired that neck can be felt, greatly reduces the wheelchair-bound comfort level of user; Even the minority wheelchair has head rest device no, it but is fixed going and seeking refuge with device, can have influence on the comfort level of taking equally.

The utility model content

The purpose of this utility model is to provide a kind of wheelchair that can regulate head rest position and angle.

For addressing the above problem, the scheme that this utility model adopted is: a kind of wheelchair with changeable cushion, it comprises vehicle frame, be arranged on the back-rest on the described vehicle frame, seat portion and the wheel that is rotationally connected with described vehicle frame, described back-rest is provided with the support that is used for fixing described head rest, described support comprises first bar that is arranged on the described back-rest, second bar that rotates and be connected with described first bar, the fixed axis that rotates and be connected with described second bar, be fixedly connected with guide rail on the described head rest, be slidingly connected with slide block on the described guide rail, be fixedly connected with sleeve pipe on the described slide block, described sleeve pipe is set on the described fixed axis rotationally.

Further, described first bar is slidingly connected on the described back-rest, described back-rest is provided with outer tube, described first bar is inserted in the described outer tube slidably, offer screwed hole on the described outer tube, also be provided with first fishbolt that is used for fixing described first bar on the described back-rest, described first fishbolt is inserted in the described screwed hole and the end pushes against on described first bar.

Further, described second bar comprises the upper boom that a lower beam that an end and described first bar are hinged and an end and described fixed axis are hinged, and the other end of described lower beam and the other end of upper boom are hinged.

Further, described first bar and lower beam be rotationally connected that axle is gone up, being rotationally connected that axle is gone up, being provided with clamping screw and locking nut on the axle that is rotationally connected of described upper boom and fixed axis of described lower beam and upper boom, an end thread of described clamping screw is connected with and is used for the tight locking nut of bar cramp that two are rotated and connect.

Further, second fishbolt that has been threaded on the described sleeve pipe, the end of described second fishbolt is passed described sleeve pipe and is pushed against on described fixed axis, is equipped with on described second fishbolt to be convenient to its handle rotatably.

Further, being threaded on the described slide block is useful on described slide block and fixed the 3rd fishbolt of described guide rail, and an end of described the 3rd fishbolt is stretched in the described guide rail and is threaded on the described slide block.

Owing to adopt such scheme, this utility model compared with prior art has the following advantages: this utility model can be regulated height, position, the left and right sides and the angle of inclination of head rest according to the demand of user, so the posture that user can be adjusted to a most comfortable is easily taken wheelchair.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is the partial enlarged drawing at A place among Fig. 1;

Accompanying drawing 3 is the rearview of support of the present utility model and head rest;

Wherein: 1, vehicle frame; 11, back-rest; 111, outer tube; 1121, the first fishbolts; 1122, the second fishbolts; 1123, the three fishbolts; 113, clamping screw; 114, locking nut; 1141, handle; 12, seat portion; 13, wheel; 14, head rest; 15, support; 151, the first bars; 152, the second bars; 1521, lower beam; 1522, upper boom; 153, fixed axis; 155, sleeve pipe; 156, slide block; 157, guide rail.

The specific embodiment

Below in conjunction with accompanying drawing this utility model is described in further detail, wherein, when " the place ahead " described in this description is meant in user rides in wheelchair, the side that user is faced, " rear " described in the description be meant user back to a side, when " left and right " side described in the description refers to that respectively user rides in the wheelchair, the left-hand side of user and right-hand side.

As shown in Figure 1, a kind of wheelchair with changeable cushion comprises: vehicle frame 1, be arranged on the back-rest 11 on the vehicle frame 1, seat portion 12, reach the wheel 13 that is rotationally connected with vehicle frame 1, described back-rest 11 is provided with the support 15 that is used for fixing described head rest 14, described support 15 is arranged on first bar 151 on the back-rest 11, second bar 152 that rotates and be connected with described first bar 151, the fixed axis 153 that rotates and be connected with described second bar 152, be fixedly connected with guide rail 157 on the described head rest 14, be slidingly connected with slide block 156 on the described guide rail 157, be fixedly connected with sleeve pipe 155 on the described slide block 156, described sleeve pipe 155 is set on the described fixed axis 153 rotationally.Can regulate the height and the angle of pitch of head rest 14 by rotating second bar 152 or fixed axis 153,, head rest 14 can be moved to the left or to the right by the position of adjusting slider 156 in guide rail 157.

For further increasing head rest 14 adjustable height, also be provided with outer tube 111 on the back-rest 11, first bar 151 is plugged in the described outer tube 111 slidably, offer screwed hole on the outer tube 111, also be provided with first fishbolt 1121 that is used for fixing first bar 151 on the back-rest 11, first fishbolt 1121 is inserted in the screwed hole and the end pushes against on described first bar 151, when needs are adjusted the height of described head rest 14, unscrew described first fishbolt 1121 earlier, first bar 151 can be slided relatively with outer tube 111, needs according to user are adjusted to desired location with head rest, tighten first fishbolt 1121 again, first bar 151 is fixed in the outer tube 111.

Preferably, for increasing the height adjustment range of head rest 14, and make things convenient for user to realize the adjusting among a small circle of head rest 14 height more like a cork, described second bar 152 adopts the two-part structure, it comprises the upper boom 1522 that a lower beam 1521 that an end and described first bar 151 are hinged and an end and described fixed axis 153 are hinged, and the other end of the other end of described lower beam 1521 and upper boom 1522 is hinged.First bar 151 and lower beam 1521 be rotationally connected that axle is gone up, being rotationally connected that axle is gone up, being provided with clamping screw 113 and locking nut 114 on the axle that is rotationally connected of described upper boom 1522 and fixed axis 153 of described lower beam 1521 and upper boom 1522, each described locking nut 114 is threaded with described clamping screw 113.By unscrewing each clamping screw 113 is connected with locking nut 114, second bar 152 is rotated relative to back-rest 11, also can regulate folding angle between lower beam 1521 and the upper boom 1522, regulate the luffing angle of fixed axis 153, thereby realize the front position of described head rest 14 is regulated, can further regulate the height of head rest 14 until user the most comfortable position simultaneously.

For realizing the tilt adjustable of head rest 14, second fishbolt 1122 that also is provided with a screwed hole on the described sleeve pipe 155 and is used with screwed hole, described second fishbolt 1122 is plugged in the described screwed hole and the end pushes against on described fixed axis 153, is connected with on described second fishbolt 1122 and is convenient to its handle 1141 rotatably.When needs are regulated the inclination angle of head rest 14, unscrew second fishbolt 1122, rotary head screws second fishbolt 1122 by 14 again to the position that user needs, and makes head rest 14 fixing.

For the left and right position of realizing head rest 14 adjustable, being threaded on the described slide block 156 is useful on described slide block 156 and described guide rail 157 fixed the 3rd fishbolts 1123, and an end of described the 3rd fishbolt 1123 is stretched in the described guide rail 157 and is threaded on the described slide block 156.With regulate first bar, 151 upper-lower positions in like manner, unscrew the 3rd bolt 1123, slide block 156 can be slided relatively with guide rail 157, adjust the position, the left and right sides of head rest 14 this moment, to satisfy the demand of user, tighten the 3rd bolt 1123 then and just head rest 14 left and right positions can be fixed.

The adjusting of comprehensive above-mentioned all directions and angle can make sitting posture the most comfortable of user.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to this utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1. wheelchair with changeable cushion, it comprises vehicle frame (1), be arranged on the back-rest (11) on the described vehicle frame (1), seat portion (12) and the wheel (13) that rotates and be connected with described vehicle frame (1), it is characterized in that: described back-rest (11) is provided with the support (15) that is used for fixing described head rest (14), described support (15) comprises first bar (151) that is arranged on the described back-rest (11), second bar (152) that rotates and be connected with described first bar (151), the fixed axis (153) that rotates and be connected with described second bar (152), be fixedly connected with guide rail (157) on the described head rest (14), be slidingly connected with slide block (156) on the described guide rail (157), be fixedly connected with sleeve pipe (155) on the described slide block (156), described sleeve pipe (155) is set on the described fixed axis (153) rotationally.

2. a kind of wheelchair according to claim 1 with changeable cushion, it is characterized in that: described first bar (151) is slidingly connected on the described back-rest (11), described back-rest (11) is provided with outer tube (111), described first bar (151) is inserted in the described outer tube (111) slidably, described outer tube offers screwed hole on (111), also be provided with first fishbolt (1121) that is used for fixing described first bar (151) on the described back-rest (11), described first fishbolt (1121) is threaded in the described screwed hole and the end pushes against on described first bar (151).

3. a kind of wheelchair according to claim 1 with changeable cushion, it is characterized in that: described second bar (152) comprises the upper boom (1522) that a lower beam (1521) that an end and described first bar (151) are hinged and an end and described fixed axis (153) are hinged, and the other end of the other end of described lower beam (1521) and upper boom (1522) is hinged.

4. a kind of wheelchair according to claim 3 with changeable cushion, it is characterized in that: described first bar (151) and lower beam (1521) be rotationally connected that axle is gone up, being rotationally connected that axle is gone up, being provided with clamping screw (113) on the axle that is rotationally connected of described upper boom (1522) and fixed axis (153) of described lower beam (1521) and upper boom (1522), an end thread of described clamping screw (113) is connected with the tight locking nut (114) of bar cramp that is used for two connections that rotate.

5. a kind of wheelchair according to claim 1 with changeable cushion, it is characterized in that: second fishbolt (1122) has been threaded on the described sleeve pipe (155), the end of described second fishbolt (1122) is passed described sleeve pipe (155) and is pushed against on described fixed axis (153), is equipped with on described second fishbolt (1122) to be convenient to its handle (1141) rotatably.

6. a kind of wheelchair according to claim 1 with changeable cushion, it is characterized in that: being threaded on the described slide block (156) is useful on described slide block (156) and fixed the 3rd fishbolt of described guide rail (157) (1123), and an end of described the 3rd fishbolt (1123) is stretched in the described guide rail (157) and is threaded on the described slide block (156).