CN215960694U

CN215960694U - Laborsaving nursing wheelchair with emergency braking function

Info

Publication number: CN215960694U
Application number: CN202122300203.0U
Authority: CN
Inventors: 郭颖; 孟英涛; 庞林琳
Original assignee: Cancer Hospital of Shandong First Medical University
Current assignee: Cancer Hospital of Shandong First Medical University
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-08
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a labor-saving nursing wheelchair with an emergency braking function, and particularly relates to the technical field of medical nursing instruments. According to the utility model, through the arrangement of the hand-dial support frame and the inner gear, the transmission rotation speed ratio of the gear is greatly increased, the moving efficiency of the wheelchair can be greatly improved, the labor force is saved, the use comfort of a patient is improved, the recovery of the state of illness of the patient is facilitated, the practicability is strong, and through the arrangement of the pedal frame, the buffering outer brake sheets and the inner brake arc plate, the two buffering outer brake sheets are simultaneously and inwards in friction fit with the outer wall of the limiting disc, so that the wheelchair hub is immediately and emergently braked, the braking mode is simple and convenient, the sensitivity is high, and the safety is strong.

Description

Laborsaving nursing wheelchair with emergency braking function

Technical Field

The utility model relates to the technical field of medical care instruments, in particular to a labor-saving nursing wheelchair with an emergency braking function.

Background

The wheelchair is provided with wheels to help replace a walking chair, is used for home rehabilitation, turnover transportation, diagnosis and outgoing activities of wounded persons, patients and disabled persons, can meet the needs of physically disabled persons and persons with mobility difficulties, more importantly, is convenient for families to move and take care of patients, and is an important tool for rehabilitation.

The brake of wheelchair among the prior art generally realizes through the hand (hold) brake, and the brake needs the user to operate with the hand and accomplishes in wheelchair handrail department, and the principle of this kind of braking mode is the hand brake and pulls the steel wire, makes the brake block press from both sides the wheel, makes the wheel stall through frictional force, and there is the time delay from user's operation to the vehicle stops the brake braking, and only it is not good through foreign steamer friction braking effect, is difficult to realize the emergency braking of vehicle when patient emergency, and the security is poor.

In addition, the current manual wheelchair patient can control the wheels to rotate towards different directions by operating the hand wheel to rotate, but the rotating speeds of the hand wheel and the wheels are consistent, so that the operation is very laborious, the use pain of the patient is aggravated, and the recovery of the illness state of the patient is not facilitated.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a labor-saving nursing wheelchair with an emergency braking function, the utility model greatly increases the transmission and rotation speed ratio of a gear by arranging a hand-dial support frame and an inner gear, can greatly improve the moving efficiency of the wheelchair, saves labor force, improves the use comfort of patients, is beneficial to the recovery of the state of illness of the patients, and has strong practicability.

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a laborsaving nursing wheelchair with emergency braking function, includes the mounting bracket, it installs the pivot to rotate between the lower part of mounting bracket left side, the anterior of pivot and rear portion outer wall are all fixed has cup jointed the driving gear, the front end and the rear end outer wall of pivot all rotate and have cup jointed the hand support frame, two the equal equidistance in hand support frame middle part is dialled and is rotated and be connected with three transition counter shafts, six the transition counter shaft inner outer wall is all fixed and has cup jointed the transition gear, all rotate in the anterior of mounting bracket and the rear portion and be connected with the internal gear, the anterior of pivot and rear portion outer wall are all fixed and have cup jointed spacing dish, two spacing dish outer wall all is through three connecting rod fixedly connected with wheel hub, two the draw-in groove has all been seted up to spacing dish inner wall, the equal fixedly connected with locating piece in upper portion, middle part and the lower part of mounting bracket front portion and rear portion, upper portion and lower part rotate through the card post respectively in the locating piece and be connected with the upper brake frame, Lower frame and the three-point support of stopping, go up the equal fixed mounting of frame lower wall of stopping and the frame upper wall of stopping down and stop the piece outward in the buffering, the left end of frame of stopping down and the right-hand member of last frame of stopping rotate respectively and install linkage board, the right part the middle part of linkage board is rotated through the kelly and is connected with the benchmark pole, the benchmark pole left end is rotated through the sleeve and is connected with the rhombus piece, equal fixed mounting has two locating pins in the middle of the front portion of mounting bracket and the rear portion, and anterior and rear portion are a pair of the locating pin outer wall all rotates and has cup jointed interior arc board of stopping, the upper end and the lower extreme of rhombus piece all rotate through short slab and interior arc board middle part of stopping and are connected, two fixed mounting has pedal frame between the three-point support right-end.

Further, the three transition gears at the front part and the rear part are respectively in meshed connection with the driving gears at the front part and the rear part.

Further, the inner walls of the two internal gears at the front part and the rear part are in meshed connection with the outer walls of the three transition gears at the front part and the rear part.

Furthermore, the inner walls of the front and rear buffering outer braking pieces are in intermittent rotating contact with the outer walls of the front and rear limiting discs respectively.

Furthermore, the left end of the lower brake frame is rotatably connected with the left end of the three-point support through a left linkage plate, and the right end of the upper brake frame is rotatably connected with the middle of the three-point support through a right linkage plate.

Further, the sleeve is rotatably sleeved on the outer wall of the rotating shaft.

Furthermore, a pair of the inner arc-braking plates at the front part and the rear part are in intermittent rotating contact with the inner walls of the limiting discs at the front part and the rear part respectively.

The utility model has the following advantages:

1. according to the utility model, through the arrangement of the hand-dial support frame and the inner gear, compared with the prior art, a patient can rotate the inner gear through holding the hand-dial support frame by hand or manually rotating the inner gear, so that the inner gear, the three transition gears and the driving gear are in meshing transmission layer by layer, the hub is driven to rotate, the transmission speed ratio of the gears is greatly increased, the moving efficiency of the wheelchair can be greatly improved, the labor is saved, the use comfort of the patient is improved, the recovery of the patient is facilitated, and the practicability is strong;

2. the utility model uses the arrangement of the pedal frame, the buffering outer brake sheet and the inner brake arc plate, when the emergency brake needs to be carried out on the wheelchair when the patient meets the emergency, the right end of the pedal frame can be lightly touched by the tiptoe, the right end of the three-point bracket descends along with the descending of the right end, the left end of the three-point bracket is lifted up around the lower positioning block, the two linkage plates are linked, the left linkage plate ascends to drive the left end of the lower brake frame to ascend, the right linkage plate descends to pull the right end of the upper brake frame to descend, the two buffering outer brake sheets are simultaneously and inwards in friction fit with the outer wall of the limiting disc, the descending of the right linkage plate can drive the right end of the reference rod to descend, the left end drives the sleeve to clockwise rotate to drive the diamond sheet to be linked and inclined, under the connecting action of the two short plates, the inner brake arc plate is in friction fit with the inner wall of the limiting disc, the buffering outer brake sheets and the inner brake arc plate can simultaneously act on the limiting disc to immediately stop the rotation of the limiting disc, therefore, the wheelchair hub can be immediately and emergently braked, and the brake mode is simple and convenient, high in sensitivity and high in safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

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

FIG. 2 is a schematic view of the fitting structure of the mounting bracket and the gear of the present invention;

FIG. 3 is a schematic view of the internal transmission structure of the hub of the present invention;

FIG. 4 is a schematic view of the gear transmission of the present invention;

FIG. 5 is a rear sectional view of the pedal frame transmission structure of the present invention.

In the figure: 1. a mounting frame; 2. a rotating shaft; 3. a driving gear; 4. a hand-pulling support frame; 5. a transition fulcrum; 6. a transition gear; 7. an internal gear; 8. a limiting disc; 9. a connecting rod; 10. a hub; 11. a card slot; 12. positioning blocks; 13. clamping the column; 14. an upper brake frame; 15. a buffering outer brake pad; 16. a lower brake frame; 17. a linkage plate; 18. a three-point support; 19. a reference bar; 20. a sleeve; 21. diamond-shaped sheets; 22. positioning pins; 23. an inner brake arc plate; 24. a short plate; 25. a pedal frame.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-5 of the specification, the labor-saving nursing wheelchair with the emergency braking function comprises a mounting frame 1, a rotating shaft 2 is rotatably mounted between the lower left portion of the mounting frame 1, driving gears 3 are fixedly sleeved on the outer walls of the front portion and the rear portion of the rotating shaft 2, hand dial support frames 4 are rotatably sleeved on the outer walls of the front end and the rear end of the rotating shaft 2, three transition support shafts 5 are rotatably connected to the middle portions of the two hand dial support frames 4 at equal intervals, transition gears 6 are fixedly sleeved on the outer walls of the inner ends of the six transition support shafts 5, inner gears 7 are rotatably connected to the inner portions of the front portion and the rear portion of the mounting frame 1, limiting discs 8 are fixedly sleeved on the outer walls of the front portion and the rear portion of the rotating shaft 2, hubs 10 are fixedly connected to the outer walls of the two limiting discs 8 through three connecting rods 9, clamping grooves 11 are formed in the inner walls of the two limiting discs 8, the utility model discloses an installation frame, including mounting bracket 1, the equal fixedly connected with locating piece 12 in upper portion, middle part and the lower part at anterior and rear portion of mounting bracket 1, upper portion, middle part and lower part rotate through calorie post 13 respectively in the locating piece 12 and be connected with upper brake frame 14, lower brake frame 16 and three point support 18, the equal fixed mounting of upper brake frame 14 lower wall and lower brake frame 16 upper wall has buffering outer brake piece 15, the left end of lower brake frame 16 and the right-hand member of upper brake frame 14 rotate respectively and install linkage plate 17, the right part the middle part of linkage plate 17 rotates through calorie post 13 and is connected with benchmark pole 19, benchmark pole 19 left end rotates through sleeve 20 and is connected with rhombus piece 21, equal fixed mounting has two locating pins 22 in the middle of anterior and the rear portion of mounting bracket 1, anterior and a pair of rear portion the locating pin 22 outer wall all rotates and has cup jointed interior arc board 23 of stopping, the upper end and the lower extreme of rhombus piece 21 all rotate through short slab 24 and interior arc board 23 and be connected, a pedal frame 25 is fixedly arranged between the right ends of the two three-point brackets 18.

Furthermore, the three transition gears 6 at the front part and the rear part are respectively meshed with the driving gears 3 at the front part and the rear part, so that the patient can rotate by holding the hand-dial support frame 4, the three transition gears 6 are linked and meshed with the driving gears 3 for transmission, and the rotating shaft 2 rotates.

Furthermore, the inner walls of the two internal gears 7 at the front part and the rear part are meshed and connected with the outer walls of the three transition gears 6 at the front part and the rear part, so that a patient can manually rotate the internal gears 7, the three transition gears 6 and the driving gear 3 are meshed and driven layer by layer, and the hub 10 is driven to rotate.

Further, anterior and rear portion two the buffering is stopped piece 15's inner wall outward and is rotated the contact with anterior and 8 outer walls intermittent type of spacing dish at rear portion respectively, and when patient met emergency and need carry out emergency braking to the wheelchair, two buffering stop piece 15 outward simultaneously inwards with 8 outer walls friction laminating of spacing dish, can restrict spacing dish 8 and rotate.

Further, the left end of the lower brake frame 16 is rotatably connected with the left end of the three-point support 18 through the left linkage plate 17, the right end of the upper brake frame 14 is rotatably connected with the middle of the three-point support 18 through the right linkage plate 17, when the right end of the three-point support 18 descends, the left end of the three-point support lifts up around the lower positioning block 12, the left linkage plate 17 ascends, and the right linkage plate 17 descends.

Further, the sleeve 20 is rotatably sleeved on the outer wall of the rotating shaft 2, so that the sleeve 20 can rotate along with the movement of the reference rod 19 without influencing the independent movement of the rotating shaft 2.

Further, anterior and a pair of at rear portion interior arc plate 23 of stopping rotates the contact with anterior 8 inner walls of spacing dish at rear portion with the interval respectively, and interior arc plate 23 of stopping is laminated with 8 inner walls of spacing dish friction, can further restrict spacing dish 8 and rotate.

The implementation scenario is specifically as follows: through the arrangement of the hand-dial support frame 4 and the inner gear 7, a patient can rotate the hand-dial support frame 4 by hand, three transition gears 6 are linked to be meshed with the driving gear 3 for transmission, the rotating shaft 2 is rotated, under the connecting action of the limiting disc 8 and the three connecting rods 9, the hub 10 is linked to drive the whole wheelchair to move, or the patient can manually rotate the inner gear 7, the three transition gears 6 and the driving gear 3 are meshed with each other for transmission layer by layer, the hub 10 is driven to rotate, the transmission speed ratio of the gears is greatly increased, the moving efficiency of the wheelchair can be greatly improved, labor is saved, the use comfort of the patient is improved, the recovery of the patient is facilitated, the practicability is strong, through the arrangement of the pedal frame 25, the buffering outer brake sheet 15 and the inner brake arc plate 23, when the emergency braking needs to be carried out on the wheelchair when the emergency situation occurs, the right end of the pedal frame 25 can be lightly clicked by the tiptoe, the right end of a three-point bracket 18 descends along with the three-point bracket, the left end of the three-point bracket is lifted up around a lower positioning block 12, two linkage plates 17 are linked, the left linkage plate 17 ascends to drive the left end of a lower brake frame 16 to ascend, the right linkage plate 17 descends to pull the right end of an upper brake frame 14 to descend, two buffering outer brake sheets 15 are simultaneously and inwards in friction fit with the outer wall of a limiting disc 8, the descending of the right linkage plate 17 can drive a reference rod 19 to descend, the left end of the reference rod drives a sleeve 20 to rotate clockwise to drive a diamond-shaped sheet 21 to be linked and inclined, under the connecting action of two short plates 24, an inner brake arc plate 23 is in friction fit with the inner wall of the limiting disc 8, the buffering outer brake sheets 15 and the inner brake arc plate 23 can simultaneously act on the limiting disc 8 to immediately stop the rotation of the limiting disc 8, so that the wheel chair hub 10 immediately brakes emergently, the braking mode is simple and convenient, the sensitivity is high, the safety is strong, and the implementation mode specifically solves the problem of low transmission efficiency of the wheel chair in the prior art, the use is laborious, and the braking mode of the wheelchair has the problems of time delay, poor effect and poor safety.

Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims

1. The utility model provides a laborsaving nursing wheelchair with emergency braking function, includes mounting bracket (1), its characterized in that: rotate between mounting bracket (1) left side lower part and install pivot (2), driving gear (3) have all been cup jointed fixedly to the front portion and the rear portion outer wall of pivot (2), the front end and the rear end outer wall of pivot (2) all rotate and have cup jointed hand group support frame (4), two the equal equidistance in hand group support frame (4) middle part is rotated and is connected with three transition counter shafts (5), six transition counter shafts (5) inner outer wall is all fixed and has been cup jointed transition gear (6), all rotate in mounting bracket (1) front portion and the rear portion and be connected with internal gear (7), the front portion and the rear portion outer wall of pivot (2) are all fixed and have been cup jointed spacing dish (8), two spacing dish (8) outer wall all through three connecting rod (9) fixedly connected with wheel hub (10), two draw-in groove (11) have all been seted up to spacing dish (8) inner wall, upper portion, the front portion at mounting bracket (1) and rear portion, Middle part and lower part all fixedly connected with locating piece (12), upper portion, middle part and lower part are rotated through calorie post (13) respectively in locating piece (12) and are connected with and stop frame (14), stop frame (16) and three point support (18) down, it stops piece (15) outward to go up the equal fixed mounting of lower wall of frame (14) and the frame (16) upper wall of stopping down, the left end of stopping frame (16) down and the right-hand member of last frame (14) of stopping rotate respectively and install linkage plate (17), the right part the middle part of linkage plate (17) is rotated through calorie post (13) and is connected with benchmark pole (19), benchmark pole (19) left end is rotated through sleeve (20) and is connected with rhombus piece (21), equal fixed mounting has two locating pins (22) in the middle of the front portion and the rear portion, a pair of anterior and rear portion locating pin (22) outer wall all rotates to cup joint has interior arc board (23) of stopping, the upper end and the lower end of the rhombic piece (21) are rotatably connected with the middle part of the inner braking arc plate (23) through a short plate (24), and a pedal frame (25) is fixedly arranged between the right ends of the three-point support (18).

2. The labor-saving nursing wheelchair with emergency braking function as claimed in claim 1, wherein: the three transition gears (6) at the front part and the rear part are respectively in meshed connection with the driving gears (3) at the front part and the rear part.

3. The labor-saving nursing wheelchair with emergency braking function as claimed in claim 1, wherein: the inner walls of the two internal gears (7) at the front part and the rear part are in meshed connection with the outer walls of the three transition gears (6) at the front part and the rear part.

4. The labor-saving nursing wheelchair with emergency braking function as claimed in claim 1, wherein: the inner walls of the buffering outer brake pieces (15) are in intermittent rotating contact with the outer walls of the limiting discs (8) at the front part and the rear part respectively.

5. The labor-saving nursing wheelchair with emergency braking function as claimed in claim 1, wherein: the left end of lower brake frame (16) is connected with the left end rotation of three point support (18) through left part linkage plate (17), the right-hand member of going up brake frame (14) is connected with the middle part rotation of three point support (18) through right part linkage plate (17).

6. The labor-saving nursing wheelchair with emergency braking function as claimed in claim 1, wherein: the sleeve (20) is rotatably sleeved on the outer wall of the rotating shaft (2).

7. The labor-saving nursing wheelchair with emergency braking function as claimed in claim 1, wherein: the pair of inner arc-braking plates (23) at the front part and the rear part are respectively in intermittent rotating contact with the inner walls of the limiting discs (8) at the front part and the rear part.