CN212853859U

CN212853859U - Folding pull rod wheelchair

Info

Publication number: CN212853859U
Application number: CN202021141705.2U
Authority: CN
Inventors: 王记
Original assignee: Hubei Kunjin Tenghai Health Care Products Co ltd
Current assignee: Hubei Kunjin Tenghai Health Care Products Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-04-02
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a folding pull rod wheelchair, which comprises a frame, a moving device, a locking device and a pull rod, wherein the moving device, the locking device and the pull rod are arranged on the frame, the frame comprises two fixing frames which are oppositely arranged, connecting rod and rotation of fixed mounting between two mounts install the base between two mounts, support and wheel carrier, be connected with the vaulting pole between base and the support, the both ends of vaulting pole are rotated respectively and are connected on base and support, be connected with the connecting rod between wheel carrier and the support, the both ends of connecting rod are rotated respectively and are connected on support and wheel carrier, locking device is used for locking wheel carrier and mount, mobile device is including installing the universal wheel on the support and installing the rotation wheel on the wheel carrier, the pull rod includes that the yoke sets up the telescopic link on the yoke telescopically, be connected with first dead lever between two wheel carriers, install the second dead lever on the support, the yoke is installed on first dead lever or second dead lever. The wheelchair of the utility model reduces the difficulty of carrying the wheelchair by the user and is convenient to use.

Description

Folding pull rod wheelchair

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a folding type pull rod wheelchair.

Background

In order to facilitate the traveling of the elderly or the disabled, the wheelchair is widely applied to the elderly and the disabled. In the process of going out, particularly going out along with children, when the old person walks by self-getting off the wheelchair, the wheelchair needs to be pushed by the children, and the wheelchair is often large in size, large in occupied space and inconvenient for the children to push; in order to save space and facilitate pushing, the wheelchair is also folded, but the folded wheelchair cannot be pushed, and children can only lift the wheelchair to walk, which undoubtedly increases the difficulty of carrying the wheelchair.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: in order to overcome the defects in the prior art, a folding pull rod wheelchair which is convenient to push after being folded is provided.

The utility model provides a technical scheme that its technical problem adopted is: a foldable pull rod wheelchair comprises a frame, a moving device, a locking device and a pull rod, wherein the moving device, the locking device and the pull rod are installed on the frame, the frame comprises two fixing frames which are oppositely arranged, a connecting rod which is fixedly installed between the two fixing frames, a base, a support and a wheel carrier which are rotatably installed between the two fixing frames, a support rod is connected between the base and the support, two ends of the support rod are respectively rotatably connected on the base and the support, a connecting rod is connected between the wheel carrier and the support, two ends of the connecting rod are respectively rotatably connected on the support and the wheel carrier, the locking device is used for locking the wheel carrier and the fixing frames, the moving device comprises a universal wheel which is installed on the support and a rotating wheel which is installed on the wheel carrier, the pull rod comprises a rod frame and a telescopic rod which is telescopically arranged, a first fixing rod is connected between the two wheel frames, a second fixing rod is mounted on the support, and the rod frames are mounted on the first fixing rod or the second fixing rod.

Furthermore, the rod frame is of a hollow frame structure, the rod frame comprises two first rod frames which are arranged oppositely and two second rod frames which are arranged oppositely, one of the second rod frames is connected with the second fixed rod, an accommodating groove is formed in the first rod frame, the telescopic rod is of a U-shaped structure, and two ends of the telescopic rod are respectively and telescopically accommodated in the accommodating groove.

Furthermore, the outside cover of second dead lever is equipped with the staple bolt, the both ends of staple bolt pass through the cooperation of double-screw bolt and nut with the second pole frame is connected, the one end of double-screw bolt pass in proper order the second pole frame with behind the both ends of staple bolt with nut threaded connection.

Further, the support includes two vertical poles that set up relatively and fixed connection is two the horizontal pole between the vertical pole, the both ends of horizontal pole with the mount rotates to be connected, second dead lever fixed connection is two between the vertical pole, another the second pole frame is installed on the horizontal pole.

Furthermore, a locking rod is fixedly connected between the two wheel carriers, and the rod carrier, the first fixing rod and the locking rod are fixedly installed.

Furthermore, the locking rod is arranged close to the connecting rod, the locking device comprises an elastic piece hinged to the connecting rod, a locking groove is formed in the elastic piece, the elastic piece is made of elastic materials, and the elastic piece can be hooked on the locking rod through the locking groove.

Furthermore, the locking device comprises a bolt inserted between the wheel carrier and the fixed frame, a first through hole is formed in the fixed frame, a second through hole is formed in the wheel carrier, and the bolt can be sequentially inserted in the second through hole and the first through hole.

Furthermore, the supporting rod is of a T-shaped structure and comprises a first rod and a second rod which are connected with each other, one end of the first rod is rotatably connected with the base, and two ends of the second rod are rotatably connected with the two longitudinal rods respectively.

Furthermore, a bolt is connected to the first rod frame in a threaded manner, and one end of the bolt abuts against the telescopic rod.

The utility model has the advantages that: the utility model provides a foldable pull rod wheelchair, locking device remove between wheel carrier and the mount after locking the relation, can fold the wheelchair, reduced the volume of wheelchair, saved the space, can realize the push-on function of folding back wheelchair after pulling out the telescopic link, compare in the traditional mode that lifts up the wheelchair walking, the utility model discloses a pull rod wheelchair has reduced the degree of difficulty that the user carried the wheelchair, is suitable for using widely.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a perspective view of a foldable pull rod wheelchair according to a first embodiment of the present invention; (wheelchair in open state)

FIG. 2 is a perspective view of another state of the folding stick wheelchair shown in FIG. 1; (wheelchair in folded position)

FIG. 3 is a partial exploded view of the folding lever wheelchair of FIG. 2;

FIG. 4 is a perspective view of another state of the folding lever wheelchair of FIG. 2; (extension state of the extension rod)

Fig. 5 is a perspective view of a foldable pull rod wheelchair according to a second embodiment of the present invention; (wheelchair in open state)

FIG. 6 is a perspective view of another state of the folding lever wheelchair of FIG. 5; (wheelchair in folded position)

Figure 7 is a perspective view of the folding lever wheelchair of figure 6 in another configuration. (extension state of the extension rod)

The names and the numbers of the parts in the figure are respectively as follows:

frame 10 fixing rack 11 connecting rod 12

Base 13 rotating shaft 131 backrest 132

Longitudinal rod 141 and transverse rod 142 of support 14

Anchor ear 1431 stud 1432 of second fixing rod 143

Nut 1433 wheel carrier 15 first fixing rod 151

First bar 161 and second bar 162 of brace bar 16

Universal wheel 21 of connecting rod 17 moving device 20

Rotating wheel 22 locking device 30 latch 31

First rod bracket 411 of rod bracket 41 of pull rod 40

The second frame 412 receives the telescopic rod 42 of the slot 410

Locking lever 112 spring 32

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

Example one

Referring to fig. 1 to 4, a foldable drawbar wheelchair according to an embodiment of the present invention includes a frame 10, and a moving device 20, a locking device 30 and a drawbar 40 mounted on the frame 10.

The frame 10 includes two opposite fixed frames 11, a connecting rod 12 fixedly installed between the two fixed frames 11, and a base 13, a bracket 14 and a wheel carrier 15 rotatably installed between the two fixed frames 11.

Specifically, the fixing frames 10 are substantially in a flat plate-shaped structure, the two fixing frames 10 are parallel to each other, the connecting rod 12 is in a cylindrical structure, the connecting rod 12 is clamped between the two fixing frames 11, one end of the connecting rod 12 is fixedly connected with one of the fixing frames 11, the other end of the connecting rod 12 is fixedly connected with the other fixing frame 11, the connecting rod 12 is arranged, the strength of the wheelchair is increased, and the parallelism of the two sides of the wheelchair is also guaranteed.

The base 13 is substantially a flat plate structure, a rotating shaft 131 is convexly arranged on one side of the base 13, and the base 13 is rotatably connected with the fixed frame 11 through the rotating shaft 131. When the base 13 is braced, the base 13 is seated for a user. In addition, a backrest 132 is vertically and fixedly connected between the two fixing frames 11, and when a user sits down, the back of the user can lean on the backrest 132.

The support 14 includes two opposite vertical rods 141 and a cross rod 142 fixedly connected between the two vertical rods 141, the cross rod 142 is connected to one end of the vertical rod 141 and perpendicular to the vertical rod 141, and two ends of the cross rod 142 are rotatably connected to the fixed frame 11. Be connected with vaulting pole 16 between base 13 and the support 14, the one end of vaulting pole 16 is connected with the edge rotation of base 13, the other end and the support 14 of vaulting pole 16 rotate to be connected, specifically, vaulting pole 16 is "T" type structure, vaulting pole 16 includes interconnect's first pole 161 and second pole 162, the one end of first pole 161 rotates with base 13 to be connected, the both ends of second pole 162 rotate with two vertical poles 141 respectively to be connected, through setting up vaulting pole 16, can play good supporting role to base 13. In other embodiments, not shown, the stay 16 may also be a rod-like structure, in which case the stay 16 has two stays 16 hinged to opposite sides of the base 13.

The two wheel frames 15 are respectively hinged with the two fixing frames 11 at the upper ends of the two wheel frames 15, the first fixing rod 151 is fixedly connected between the two wheel frames 15, the two wheel frames 15 can be connected by arranging the first fixing rod 151, the connection stability of the wheelchair is enhanced, and the two wheel frames 15 are prevented from being deformed due to inward inclination or outward inclination.

A connecting rod 17 is connected between the wheel frame 15 and the bracket 14, one end of the connecting rod 17 is rotatably connected with the vertical rod 141 of the bracket 14, and the other end of the connecting rod 17 is rotatably connected with the bottom of the wheel frame 15. By providing the link 17, the angle of separation between the wheel carrier 15 and the yoke 14 can be effectively defined.

The moving device 20 includes two universal wheels 21 and two rotating wheels 22, the two universal wheels 21 are mounted on the stand 14, and the two rotating wheels 22 are mounted on the wheel frame 15. Specifically, two universal wheels 21 are installed at one end of the longitudinal bar 141 away from the cross bar 142 for changing the direction of the wheelchair, and a turning wheel 22 is installed at the lower end of the wheel frame 15 for supporting the forward and backward movement of the wheelchair.

The locking device 30 is used for controlling the locking relationship between the wheel frame 15 and the fixed frame 11, when the locking device 30 is operated to lock the wheel frame 15 and the fixed frame 11, the wheel frame 15 cannot rotate relative to the fixed frame 11, and when the locking device 30 is operated to release the locking relationship between the wheel frame 15 and the fixed frame 11, the wheel frame 15 can rotate relative to the fixed frame 11. In this embodiment, the locking device 30 includes a bolt 31 inserted between the wheel frame 15 and the fixed frame 11, specifically, the fixed frame 11 is provided with a first through hole (not shown), the wheel frame 15 is provided with a second through hole (not shown), when the wheel frame 15 rotates relative to the fixed frame 11 until the first through hole and the second through hole are aligned, the bolt 31 may be inserted in the second through hole and the first through hole in sequence, so as to lock the wheel frame 15 on the fixed frame 11, the wheel frame 15 cannot rotate relative to the fixed frame 11, so that the base 13 is fixed relative to the fixed frame 11 and is in a supported state, and at this time, the wheelchair is in an open state. When the latch 31 is pulled out, the locking relation between the wheel frame 15 and the fixed frame 11 is released, the wheel frame 15 can rotate relative to the fixed frame 11, and at the moment, the base 13 can rotate relative to the fixed frame 11 in the direction approaching the bracket 14, so that the wheelchair is folded.

In this embodiment, the second fixing rod 143 is connected to the rack 14, specifically, the second fixing rod 143 is parallel to the cross bar 142, the second fixing rod 143 is fixedly connected between the two vertical bars 141, the pull rod 40 is detachably and fixedly mounted on the second fixing rod 143, and the second fixing rod 143 also increases the stability of the rack 14, so as to prevent the rack 14 from easily deforming.

Referring to fig. 3 and 4, the pull rod 40 includes a rod frame 41 and a telescopic rod 42 telescopically disposed on the rod frame 41, and the rod frame 41 is detachably and fixedly connected to the second fixing rod 143. In this embodiment, the rod frame 41 is a hollow frame structure in a shape like a Chinese character kou, and the rod frame 41 includes two first rod frames 411 disposed oppositely and two second rod frames 412 disposed oppositely, wherein one of the second rod frames 412 is connected to the second fixing rod 143, so as to realize a fixed connection relationship between the pull rod 40 and the bracket 14. One end of the first frame 411 is recessed inwards along the axial direction of the first frame 411 to form an accommodating groove 410, the telescopic rod 42 is substantially in a U-shaped structure, two ends of the telescopic rod 42 are respectively and telescopically accommodated in the accommodating groove 410, when the wheelchair is in an open state and is normally used, the telescopic rod 42 is accommodated in the accommodating groove 410, and when the wheelchair is in a folded state, the telescopic rod 42 extends out of the accommodating groove 410, so that a user can conveniently pull the wheelchair to walk through the telescopic rod 42.

In order to facilitate the telescopic rod 42 to be fixed relative to the rod frame 41 after extending out, a telescopic rod structure in the luggage pull rod box can be adopted between the telescopic rod 42 and the rod frame 41, or alternatively, a bolt is connected to the first rod frame 411 of the rod frame 41 in a threaded manner, and is screwed down, so that one end of the bolt extends into the accommodating groove 410 and then abuts against the telescopic rod 42, thereby extruding and fixing the telescopic rod 42, and the fixing mode of the telescopic rod 42 after extending out relative to the rod frame 41 is not limited here.

In addition, in order to improve the installation stability of the drawbar 40, another second frame bar 412 is installed on the cross bar 142, so that both opposite ends of the frame 41 are fixed to the brackets 14, and the installation stability is significantly improved.

In this embodiment, the outer portion of the second fixing rod 143 is sleeved with an anchor ear 1431, two ends of the anchor ear 1431 are fixedly connected to the second rod rack 412 through the matching of the screw bolt 1432 and the nut 1433, and specifically, one end of the screw bolt 1432 sequentially passes through two ends of the second rod rack 412 and the anchor ear 1431 and then is connected to the nut 1433 through a screw thread.

The utility model provides a foldable pull rod wheelchair's use as follows:

when a user needs to fold and push the wheelchair, the locking relationship between the wheel frame 15 and the fixed frame 11 is released by operating the locking device 30, the wheel frame 15 can rotate relative to the fixed frame 11, at the moment, the base 13 can be drawn close to the bracket 14, and meanwhile, the wheel frame 15 drives the two rotating wheels 22 to be drawn close to the bracket 14, so that the base 13, the bracket 14 and the wheel frame 15 are drawn close together, the wheelchair is folded, the volume of the folded wheelchair is reduced, too much space cannot be occupied, and then the user pulls out the telescopic rod 42, thereby realizing the pushing function of the folded wheelchair. When a user needs to open the wheelchair, the telescopic rod 42 is firstly retracted into the rod frame 41, then the base 13 is rotated towards the direction away from the bracket 14, the base 13 is gradually opened, and after the base is rotated to the proper position, the wheel frame 15 is locked on the fixed frame 11 by operating the locking device 30.

The embodiment of the utility model provides a foldable pull rod wheelchair, locking device 30 remove behind the locking relation between wheel carrier 15 and the mount 11, can fold the wheelchair, has reduced the volume of wheelchair, has saved the space, can realize the carry-on function of folding back wheelchair after pulling out telescopic link 42, compares in the traditional mode that lifts up the wheelchair walking, the utility model discloses a pull rod wheelchair has reduced the degree of difficulty that the user carried the wheelchair, is suitable for using widely.

Example two

Referring to fig. 5-7, a second embodiment of the foldable wheelchair with a pull rod according to the present invention is different from the first embodiment in that the structure of the locking device 30 and the fixing position of the pull rod 40 are different.

Specifically, in the present embodiment, the fixing frames 11 are of a bent tubular structure, the connecting rod 12 is fixedly connected between the two fixing frames 11, the locking rod 112 is fixedly connected between the two wheel carriers 15, and the locking rod 112 is disposed near the connecting rod 12. The locking device 30 includes an elastic member 32 hinged on the connecting rod 12, a locking groove (shown) is formed on the elastic member 32, the elastic member 32 is made of an elastic material, in this embodiment, the elastic member 32 has a plate-shaped structure, and the elastic member 32 is made of a stainless steel material. When the wheelchair is in the open state, the elastic member 32 is deformed by force, so that the elastic member 32 is hooked on the locking rod 112 through the locking groove, and when the force applied to the elastic member 32 is released, the elastic member 32 is restored by the elastic force to tightly hook the locking rod 112, so that the wheel frame 15 is locked on the fixed frame 11.

In the present embodiment, the drawbar 40 is fixedly mounted on the first fixing rod 151, and specifically, one of the second bar frames 412 on the bar frame 41 is fixedly mounted on the first fixing rod 151, so as to achieve a fixed connection relationship between the drawbar 40 and the wheel frame 15. In addition, in order to improve the mounting stability of the pull rod 40, another second bar frame 412 is fixedly mounted on the locking bar 112.

The utility model discloses the use of the foldable pull rod wheelchair that embodiment two provided is the same with embodiment one, and this place is no longer repeated.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A folding pull rod wheelchair is characterized in that: the frame comprises two oppositely arranged fixed frames, a connecting rod fixedly arranged between the two fixed frames, a base, a support and a wheel carrier rotatably arranged between the two fixed frames, a support rod is connected between the base and the support, two ends of the support rod are respectively rotatably connected on the base and the support, a connecting rod is connected between the wheel carrier and the support, two ends of the connecting rod are respectively rotatably connected on the support and the wheel carrier, the locking device is used for locking the wheel carrier and the fixed frames, the moving device comprises a universal wheel arranged on the support and a rotating wheel arranged on the wheel carrier, the pull rod comprises a rod frame and a telescopic rod telescopically arranged on the rod frame, and a first fixed rod is connected between the two wheel carriers, and a second fixing rod is arranged on the bracket, and the rod frame is arranged on the first fixing rod or the second fixing rod.

2. The foldable draw bar wheelchair of claim 1, further comprising: the pole frame is a hollow frame structure, the pole frame comprises two first pole frames which are oppositely arranged and two second pole frames which are oppositely arranged, one of the second pole frames is connected with the second fixed rod, an accommodating groove is formed in the first pole frame, the telescopic rod is of a U-shaped structure, and two ends of the telescopic rod are respectively and telescopically accommodated in the accommodating groove.

3. The foldable draw bar wheelchair of claim 2, further comprising: the outside cover of second dead lever is equipped with the staple bolt, the both ends of staple bolt pass through the cooperation of double-screw bolt and nut with the second pole frame is connected, the one end of double-screw bolt passes in proper order the second pole frame reaches behind the both ends of staple bolt with nut threaded connection.

4. The foldable draw bar wheelchair of claim 2, further comprising: the support includes two vertical poles that set up relatively and fixed connection is two horizontal pole between the vertical pole, the both ends of horizontal pole with the mount rotates to be connected, second dead lever fixed connection is two between the vertical pole, another the second pole frame is installed on the horizontal pole.

5. The foldable draw bar wheelchair of claim 1, further comprising: and a locking rod is fixedly connected between the two wheel carriers, and the rod carrier, the first fixing rod and the locking rod are fixedly installed.

6. The foldable draw bar wheelchair of claim 5, further comprising: the locking rod is close to the connecting rod, the locking device comprises an elastic piece hinged to the connecting rod, a locking groove is formed in the elastic piece, the elastic piece is made of elastic materials, and the elastic piece can be hooked on the locking rod through the locking groove.

7. The foldable draw bar wheelchair of claim 1, further comprising: the locking device comprises a bolt inserted between the wheel carrier and the fixed frame, a first through hole is formed in the fixed frame, a second through hole is formed in the wheel carrier, and the bolt can be sequentially inserted in the second through hole and the first through hole.

8. The foldable draw bar wheelchair of claim 4, further comprising: the support rod is of a T-shaped structure and comprises a first rod and a second rod which are connected with each other, one end of the first rod is rotatably connected with the base, and two ends of the second rod are rotatably connected with the two longitudinal rods respectively.

9. The foldable draw bar wheelchair of claim 2, further comprising: the first rod frame is in threaded connection with a bolt, and one end of the bolt abuts against the telescopic rod.