CN217456233U

CN217456233U - Knee cart with firm structure

Info

Publication number: CN217456233U
Application number: CN202221786409.7U
Authority: CN
Inventors: 李玄
Original assignee: Foshan Hfk Medical Technology Co ltd
Current assignee: Foshan Hfk Medical Technology Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-09-20
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to the field of medical equipment, specifically disclose a knee car of sound construction, including the front wheel support, the rear wheel support, leg pad bracing piece and damping device, leg pad bracing piece one end is connected with rear wheel support one end, through first connecting rod and second connecting rod fixed connection between front wheel support and the leg pad bracing piece, the head rod is the triangular prism, the head rod, second connecting rod and leg pad bracing piece combination form triangle-shaped, damping device one end is connected with leg pad bracing piece, the other end and rear wheel leg support connection, leg pad bracing piece, damping device and rear wheel support combination form triangle-shaped, the cross section of rear wheel support is triangle-shaped. The utility model discloses a through designing into a plurality of triangles with the frame, the stable structure of triangle-shaped has improved the fastness of frame, makes the frame can bear bigger pressure and impact force.

Description

Knee cart with firm structure

Technical Field

The utility model relates to the field of medical equipment, in particular to knee car.

Background

The knee cart is a medical auxiliary walking tool for people who are inconvenient to walk. However, the frame structures of many knee cars on the market are simple, and if a user has a heavy body or needs to pass through a bumpy road section during use, the frame of the knee car is easy to deform due to pressure or impact force, so that potential safety hazards are buried.

The technical problem to be solved by the application is as follows: how to design a knee car with a firm and stable frame structure.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a knee car with firm and stable frame structure and firm structure.

The utility model discloses the technical scheme who adopts does: the utility model provides a knee car of sound construction, including the front wheel support, the rear wheel support, leg pad bracing piece and damping device, leg pad bracing piece one end is connected with rear wheel support one end, through first connecting rod and second connecting rod fixed connection between front wheel support and the leg pad bracing piece, the first connecting rod is the triangular prism, the head rod, second connecting rod and leg pad bracing piece combination form triangle-shaped, damping device one end is connected with leg pad bracing piece, the other end and rear wheel leg joint, leg pad bracing piece, damping device and rear wheel support combination form triangle-shaped, the cross section of rear wheel support is triangle-shaped.

The whole vehicle frame forms four triangular stable structures, namely a frame main body structure, namely a triangle formed by combining a first connecting rod, a second connecting rod and a leg pad supporting rod; the shock-absorbing structure is that the leg pad support rod, the shock-absorbing device and the rear wheel bracket are combined to form a triangle; thirdly, the rear wheel structure, the cross section of the rear wheel bracket is triangular; and fourthly, a first connecting rod of a triangular prism. The four triangular stabilizing structures ensure the firmness of the frame and can bear larger pressure or impact force.

In some embodiments, one end of the shock absorbing device is detachably connected with the leg pad support rod through a shock absorbing connecting piece and a plug pin, the shock absorbing connecting piece is fixedly connected with the leg pad support rod, and the plug pin penetrates through the shock absorbing connecting piece and one end of the shock absorbing device.

In some embodiments, one end of the leg pad support bar is pivotally connected to one end of the rear wheel bracket. After the damping device can be disconnected with the leg pad supporting rod, the rear wheel support can rotate towards the front wheel support, the size can be reduced when the rear wheel support is packaged, and the transportation cost is reduced.

In some embodiments, the other two ends of the rear wheel bracket are respectively provided with a rear wheel which is rotatably connected with the rear wheel bracket, and the rear wheel bracket is detachably connected with the rear wheel. The scheme further removes the rear wheel, and reduces the volume during packaging.

In some embodiments, the front wheel cross bar is included, the front wheel bracket is detachably connected with the front wheel cross bar through a front wheel pipe clamp, and the front wheel pipe clamp is fixedly connected with the front wheel bracket and is rotatably connected with the front wheel cross bar. The front wheel cross rod is detachably connected with the front wheel support, so that the packaging cost and the storage cost can be reduced.

In some embodiments, the two ends of the front wheel cross bar are respectively provided with a front wheel which is rotatably connected with the front wheel cross bar, the front wheel cross bar is detachably connected with the front wheel through a front wheel connecting bar, the front wheel connecting bar is rotatably connected with the front wheel cross bar, and the two ends of the front wheel connecting bar are respectively connected with the front wheel clamping positions. This scheme is further disassembled the knee car, reduces the whole volume after disassembling.

In some embodiments, the handle and the handle support rod, the handle is vertically connected with the handle support rod, the handle is detachably connected with the upper end of the handle support rod through a handle pipe clamp, and the lower end of the handle support rod is detachably connected with the upper end of the front wheel bracket through a handle connecting piece. The handle support rod is respectively detachably connected with the handle and the front wheel bracket, so that the frame can be further disassembled, and the packaging cost is reduced.

In some embodiments, the leg pad support rod is provided with a leg pad connecting rod detachably connected with the leg pad support rod, the upper end of the leg pad connecting rod is provided with a leg pad fixedly connected with the leg pad connecting rod, the leg pad connecting rod is longitudinally provided with a plurality of leg pad adjusting holes, the leg pad support rod is provided with a leg pad connecting hole communicated with the leg pad adjusting holes, and the leg pad connecting hole and the leg pad adjusting hole are provided with a leg pad screw for connecting the leg pad connecting hole and the leg pad adjusting hole and a leg pad nut in threaded connection with the leg pad screw. The height of the leg pad can be adjusted through a leg pad connecting hole on the leg pad supporting rod and a leg pad adjusting hole on the leg pad connecting rod.

The beneficial effects of the utility model reside in that:

according to the knee car with the firm structure, the car frame is designed into four triangles, the firmness of the car frame is improved due to the stable structure of the triangles, and the car frame can bear larger pressure and impact force.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the structure labeled A in FIG. 1;

FIG. 3 is a schematic structural view of an eccentric cam handwheel;

FIG. 4 is an enlarged view of the structure labeled B in FIG. 1;

FIG. 5 is a schematic structural view of the front wheel;

FIG. 6 is a schematic structural view of a front wheel connecting rod;

FIG. 7 is a schematic view of the leg pad link;

fig. 8 is a schematic view showing structural connection of the leg pad support bar, the shock-absorbing means and the rear wheel bracket.

The reference numerals and names in the drawings correspond to the following: 1. a handle; 2. a handle support bar; 3. a front wheel bracket; 4. a front wheel crossbar; 5. a leg pad support bar; 6. a rear wheel support; 7. a damping device; 8. a front wheel; 9. a rear wheel; 10. a leg pad connecting bar; 11. a handle tube clamp; 111. an upper fixing sheet; 112. a lower fixing sheet; 12. an eccentric cam handwheel; 121. a round base; 122. a rotating shaft; 123. a fixed shaft; 124. a cushion pad; 125. a fixed seat; 117. an auxiliary seat; 21. a handle attachment; 211. a handle upper connector; 212. a handle lower connecting member; 30. a front wheel pipe clamp; 31. a front wheel eccentric cam hand wheel; 32. a first connecting rod; 33. a second connecting rod; 52. a leg pad screw; 53. a leg pad nut; 54. a shock absorbing connector; 55. damping connecting holes; 72. a bolt; 73. a rear wheel attachment; 81. a front wheel attachment hole; 82. a bump; 83. a front wheel connecting rod; 84. fixing grooves; 85. a fixed section; 101. a leg pad; 102. leg pad adjustment holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a knee cart with a firm structure comprises a handle 1, a handle support rod 2, a front wheel support 3, a front wheel cross rod 4, a leg pad support rod 5, a rear wheel support 6 and a damping device 7.

Referring to fig. 2 and 3, the handle 1 is detachably connected to the upper end of the handle support rod 2 through the handle pipe clamp 11, the handle pipe clamp 11 is provided with an upper fixing plate 111 and a lower fixing plate 112, the lower fixing plate 112 is fixedly connected to the upper end of the handle support rod 2, the handle 1 is provided with screws respectively abutted against the upper fixing plate 111, one end of the upper fixing plate 111 and one end of the lower fixing plate 112 are connected in a clamping manner, the cross section formed by the upper fixing plate 111 and the lower fixing plate 112 is an open circle, at the open position, the upper fixing plate 111 and the lower fixing plate 112 are respectively provided with an upper fixing hole and a lower fixing hole corresponding to the upper fixing plate, the upper fixing hole and the lower fixing hole are detachably connected through the eccentric cam handwheel 12, the eccentric cam handwheel 12 is used for changing the distance between the upper fixing hole and the lower fixing hole, the eccentric cam handwheel 12 comprises a circular base 121, a rotating shaft 122 which is eccentrically arranged and rotatably connected with the circular base 121, and a fixing shaft 123 which penetrates through the upper fixing hole and the lower fixing hole, the rotating shaft 122 and the fixing shaft 123 are mutually perpendicular and rotatably connected, fixed axle 123 below is equipped with from the top down with its fixed connection's blotter 124 and fixing base 125 in proper order, blotter 124 and fixing base 125 upper end fixed connection, be equipped with between circle seat 121 and the last fixed orifices with circle seat 121 marginal shape fit's supplementary seat 117, when rotating circle seat 121, change the distance between axis of rotation 122 and supplementary seat 117, thereby change the distance between supplementary seat 117 and fixing base 125, because go up the fixed orifices and set up between supplementary seat 117 and fixing base 125 with fixed orifices down, so go up the distance between stationary blade 111 and the lower stationary blade 112 and can change along with the distance change between supplementary seat 117 and fixing base 125, thereby realize the detachable connection between handle 1 and the handle bracing piece 2.

Referring to fig. 4, the lower end of the handle support rod 2 is detachably connected to the upper end of the front wheel bracket 3 through a handle connecting member 21, the handle connecting member 21 includes an upper handle connecting member 211 and a lower handle connecting member 212, the upper handle connecting member 211 is fixedly connected to the lower end of the handle support rod 2, the lower handle connecting member 212 is fixedly connected to the upper end of the front wheel bracket 3, one end of the upper handle connecting member 211 is hinged to one end of the lower handle connecting member 212, and the other ends of the upper handle connecting member 211 and the lower handle connecting member are fixedly connected through screws.

The front wheel support 3 is detachably connected with the front wheel cross rod 4 through a front wheel pipe clamp 30, the structure of the front wheel pipe clamp 30 is similar to that of the handle pipe clamp 11, the difference is that an upper fixing sheet 111 of the front wheel pipe clamp 30 is fixedly connected with the lower end of the front wheel support 3, the front wheel pipe clamp 30 adjusts the distance between the upper fixing sheet 111 and a lower fixing sheet 112 of the front wheel pipe clamp 30 through a front wheel eccentric cam hand wheel 31, and the front wheel eccentric cam hand wheel 31 is similar to the eccentric cam hand wheel 12 in structure.

Referring to fig. 5 and 6, the front wheel 8 is rotatably connected to the two ends of the front wheel cross bar 4, and the front wheel cross bar 4 is detachably connected to the front wheel 8. The center of front wheel 8 is equipped with front wheel connecting hole 81, the inner hole wall of front wheel connecting hole 81 is equipped with several lug 82, front wheel horizontal pole 4 is equipped with the front wheel fixed orifices, front wheel fixed orifices and two front wheel connecting holes 81 intercommunication, the front wheel fixed orifices is equipped with the front wheel connecting rod 83 that sets up in the front wheel fixed orifices and be connected with it rotation, front wheel connecting rod 83 is equipped with lug 82 shape complex fixed slot 84 and the fixed head that supports with lug 82, the other end is equipped with threaded connection and the fixed section 85 that supports with lug 82 with it.

The front wheel bracket 3 and the leg pad support rod 5 are fixedly connected through a first connecting rod 32 and a second connecting rod 33, wherein the first connecting rod 32 is a triangular prism, the first connecting rod 32 is arranged above the second connecting rod 33, and the first connecting rod 32, the second connecting rod 33 and the leg pad support rod 5 are combined to form a triangle.

Referring to fig. 7 and 8, the leg pad support rod 5 is fixedly connected to the leg pad 101 through the leg pad connecting rod 10, the leg pad 101 is fixedly connected to the upper end of the leg pad connecting rod 10, the leg pad connecting rod 10 is longitudinally provided with two rows of a plurality of leg pad adjusting holes 102, the two rows of the leg pad adjusting holes 102 are correspondingly arranged at two ends of the cross section of the leg pad connecting rod 10, the leg pad support rod 5 is provided with two leg pad connecting holes respectively arranged at two ends of the cross section of the leg pad support rod 5, the leg pad connecting hole and the leg pad adjusting hole 102 are provided with a leg pad screw 52 penetrating through the leg pad connecting hole and a leg pad nut 53 in threaded connection with the leg pad screw 52, the leg pad adjusting holes 102 for adjusting different heights are communicated with the leg pad 101 connecting hole, the leg pad screw 52 is connected with the leg pad connecting hole, and the leg pad screw 52 is fixed with the connecting relationship between the leg pad screw 52 and the leg pad 101 through the leg pad nut, thereby adjusting the height of the leg pad 101. The leg pad 101 surface is provided with two grooves for placing the legs from different directions.

One end of the leg pad supporting rod 5 is hinged with one end of the rear wheel support 6, one end of the damping device 7 is connected with the leg pad supporting rod 5, the other end of the damping device is fixedly connected with the rear wheel support 6, and the leg pad supporting rod 5, the damping device 7 and the rear wheel support 6 are combined to form a triangle.

One end of the damping device 7 is detachably connected with the leg pad support rod 5, the other end is rotatably connected with the rear wheel bracket 6 through a rear wheel connecting piece 73, and the rear wheel connecting piece 73 is fixedly connected with the rear wheel bracket 6 and hinged with the damping device 7. The leg pad support rod 5 is provided with a shock absorption connecting piece 54, the shock absorption connecting piece 54 is a tripod, the shock absorption connecting piece 54 is provided with a shock absorption connecting hole 55, one end of the shock absorption device 7 is provided with a shock absorption fixing hole, the shock absorption connecting hole 55 is communicated with the shock absorption fixing hole, the shock absorption fixing hole is provided with a bolt 72 in threaded connection with the shock absorption fixing hole, and the bolt 72 penetrates through the shock absorption connecting hole 55.

The cross section of the rear wheel bracket 6 is triangular. One end of the rear wheel bracket 6 is hinged with the leg pad supporting rod 5, the other two ends are respectively provided with a rear wheel 9 which is rotationally connected with the rear wheel bracket, and the rear wheel bracket 6 is detachably connected with the rear wheel 9. The rear wheel support 6 is connected with the rear wheel 9 in the same way as the front wheel crossbar 4 is connected with the front wheel 8.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A knee cart with a firm structure comprises a front wheel bracket (3), a rear wheel bracket (6), a leg pad supporting rod (5) and a damping device (7), wherein one end of the leg pad supporting rod (5) is connected with one end of the rear wheel bracket (6), it is characterized in that the front wheel bracket (3) is fixedly connected with the leg pad supporting rod (5) through a first connecting rod (32) and a second connecting rod (33), the first connecting rods (32) are triangular prisms, the first connecting rods (32), the second connecting rods (33) and the leg pad supporting rods (5) are combined to form a triangle, one end of the damping device (7) is connected with the leg pad supporting rod (5), the other end is connected with the rear wheel bracket (6), the leg pad supporting rod (5), the damping device (7) and the rear wheel support (6) are combined to form a triangle, and the cross section of the rear wheel support (6) is triangular.

2. A knee buggy for structural security according to claim 1, characterized in that one end of the shock absorbing means (7) is detachably connected to the leg rest support bar (5) by means of a shock absorbing connecting member (54) and a bolt (72), the shock absorbing connecting member (54) being fixedly connected to the leg rest support bar (5), the bolt (72) passing through the shock absorbing connecting member (54) and one end of the shock absorbing means (7).

3. A knee buggy structure as claimed in claim 2, characterised in that said leg rest support bar (5) is pivotally connected at one end to one end of the rear wheel support (6).

4. A knee buggy with a rigid structure according to claim 3, characterised in that the rear wheel support (6) is provided at its other ends with a rear wheel (9) rotatably connected thereto, the rear wheel support (6) being detachably connected to the rear wheel (9).

5. The knee brace with the stable structure according to claim 1, comprising a front wheel cross bar (4), wherein the front wheel support (3) is detachably connected with the front wheel cross bar (4) through a front wheel pipe clamp (30), and the front wheel pipe clamp (30) is fixedly connected with the front wheel support (3) and rotatably connected with the front wheel cross bar (4).

6. A knee buggy with a firm structure according to claim 5, characterized in that the front wheel cross bar (4) is provided with front wheels (8) at both ends thereof, respectively, the front wheel cross bar (4) is detachably connected with the front wheels (8) through a front wheel connecting bar (83), the front wheel connecting bar (83) is rotatably connected with the front wheel cross bar (4) and both ends thereof are respectively connected with the front wheels (8) in a clamping manner.

7. The knee buggy with the firm structure is characterized by comprising a handle (1) and a handle support rod (2), wherein the handle (1) is vertically connected with the handle support rod (2), the handle (1) is detachably connected with the upper end of the handle support rod (2) through a handle pipe clamp (11), and the lower end of the handle support rod (2) is detachably connected with the upper end of a front wheel bracket (3) through a handle connecting piece (21).

8. A knee car with a firm structure according to claim 1, wherein the leg pad support rod (5) is provided with a leg pad connecting rod (10) detachably connected with the leg pad support rod, the upper end of the leg pad connecting rod (10) is provided with a leg pad (101) fixedly connected with the leg pad connecting rod, the leg pad connecting rod (10) is longitudinally provided with a plurality of leg pad adjusting holes (102), the leg pad support rod (5) is provided with a leg pad connecting hole communicated with the leg pad adjusting holes (102), and the leg pad connecting hole and the leg pad adjusting hole (102) are provided with a leg pad screw (52) for connecting the leg pad support rod and the leg pad nut (53) in threaded connection with the leg pad screw (52).