CN216777399U

CN216777399U - Wheelchair pedal

Info

Publication number: CN216777399U
Application number: CN202123043983.1U
Authority: CN
Inventors: 周玉琴
Original assignee: Haiyan Peoples Hospital
Current assignee: Haiyan Peoples Hospital
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-06-21
Anticipated expiration: 2031-12-03

Abstract

The utility model relates to the technical field of wheelchair devices, in particular to a wheelchair pedal, which comprises: montant, horizontal pole, footboard, torsional spring and briquetting, the horizontal pole right-hand member sets firmly in the montant lower extreme, footboard one end is connected with the casing, the casing rotates the pretension portion that the horizontal pole was located to the cover, the cover is equipped with the stop collar in the pretension portion, the briquetting is fixed in on the pretension portion, the right-hand member contact shell edge of briquetting, the left end of briquetting is equipped with the recess, the recess is located the inboard top of casing, the torsion spring cover is located in the pretension portion, the first kink of torsional spring is located in the recess, the second interior top surface of contact casing of kink of torsional spring, the built-in torsional spring of casing and briquetting make the footboard stop after rotating to vertical position automatically when not using, and medical personnel need not to upwards break up the footboard with the fingers and thumb by hand, improve the folding efficiency of wheelchair, effectively reduced medical personnel's working strength.

Description

Wheelchair pedal

Technical Field

The utility model relates to the technical field of wheelchair devices, in particular to a wheelchair pedal.

Background

The footboard of wheelchair is the standard of every wheelchair and joins in marriage, also influences user's use to a great extent and experiences, and the footboard structure generally requires to possess regulatory function, adapts to different user's demand. The pedal adjusting link generally comprises angle adjustment and length adjustment, but products with pedal angles in the prior art have a common defect, when a user does not use the wheelchair after standing up, the wheelchair pedal needs to be manually and upwards broken off before folding the wheelchair, and the working strength of medical workers is increased to a certain extent.

In summary, in order to overcome the defects in the prior art, a wheelchair pedal which is simple in structure and can retract automatically needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wheelchair pedal for solving the problems in the prior art.

The purpose of the utility model can be realized by the following technical scheme: a wheelchair step comprising:

montant, horizontal pole, footboard, torsional spring and briquetting, the horizontal pole right-hand member sets firmly in the montant lower extreme, footboard one end is connected with the casing, the casing rotates the pretension portion that the horizontal pole was located to the cover, the cover is equipped with the stop collar in the pretension portion, the briquetting is fixed in the pretension portion, the right-hand member contact casing edge of briquetting, the left end of briquetting is equipped with the recess, the recess is located the inboard top of casing, the torsion spring cover is located in the pretension portion, the first kink of torsional spring is located in the recess, the two interior top surfaces of contact casing of kink of torsional spring.

The improved structure is characterized in that the cross rod is provided with an extension block, the extension block is provided with a fixed rod, the fixed rod is internally provided with a moving rod in a sliding mode, the shell is provided with a through hole, and one end of the moving rod is arranged in the through hole.

In a further improvement, the moving rod is provided with a top block.

In a further improvement, a cylindrical sleeve is arranged on the inner top surface of the shell, and the second bending part is arranged in the cylindrical sleeve.

The improved structure comprises a vertical rod, a fixed rod and a movable rod, wherein the movable rod is arranged inside the fixed rod in a sliding mode, a limiting bolt for fixing the movable rod is arranged on the outer side of the fixed rod, and a transverse rod is fixed on the movable rod.

In a further improvement, the pedal is provided with a U-shaped groove, and the U-shaped groove is internally provided with an anti-skid block.

In a further improvement, the pressing block is connected to the pre-tightening part of the cross rod through a bolt.

In a further improvement, a cotter pin is arranged at the outer end of the pre-tightening part.

Compared with the prior art, the shell of the wheelchair pedal is internally provided with the torsion spring and the pressing block, so that the pedal automatically rotates to a vertical position and stops when not in use, medical personnel do not need to manually pull up the pedal, the folding efficiency of the wheelchair is improved, and the working strength of the medical personnel is effectively reduced; through dead lever and carriage release lever, the carriage release lever outwards promotes to the through-hole of casing in, can carry out the locking to the footboard, improves the stability that the footboard used, can make both feet leave the footboard and make the footboard not automatic upwards retract, when the locking of footboard was relieved to needs, reverse movement carriage release, convenient to use can relieve.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic view of another embodiment of the present invention

FIG. 3 is a schematic view of a portion of FIG. 2 in an enlarged manner

FIG. 4 is a schematic view of the structure of the present invention in an unused state

In the figure, 1-vertical rod, 11-fixed rod, 12-moving rod, 13-limiting bolt, 2-horizontal rod, 21-pretightening part, 211-limiting sleeve, 212-split pin, 3-pedal, 31-shell, 311-inner top surface, 312-cylindrical sleeve, 32-through hole, 33-U-shaped groove, 34-antiskid block, 4-torsion spring, 41-bending part I, 42-bending part II, 5-pressing block, 51-groove, 61-extension block, 62-fixing rod, 63-moving rod and 64-top block.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solution of the present invention is further described below with reference to the following embodiments and accompanying drawings 1 to 4.

Example 1

A wheelchair step comprising: montant 1, horizontal pole 2, footboard 3, torsional spring 4 and briquetting 5, 2 right-hand members of horizontal pole set firmly in 1 lower extreme of montant, 3 one ends of footboard are connected with casing 31, casing 31 rotates the cover and locates the pretension portion 21 of horizontal pole 2, the cover is equipped with stop collar 211 on the pretension portion 21, briquetting 5 is fixed in on the pretension portion 21, the right-hand member contact casing 31 edge of briquetting 5, the left end of briquetting 5 is equipped with recess 51, recess 51 is located the inboard top of casing 31, 4 covers of torsional spring locate on the pretension portion 21, recess 51 is located to one 41 of kink of torsional spring 4, two 42 contact casing 31's of kink of torsional spring 4 interior top surface 311.

As shown in fig. 4, the state is the non-use state of the pedal 3, when the wheelchair is needed, the user sits in the seat and applies pressure to rotate the pedal downwards, and when the wheelchair is needed to stand up, the pedal 3 automatically rebounds upwards slowly to the vertical position under the action of the torsion spring 4, and the pressing block 5 contacts the edge of the shell 31 at the vertical position, so that the pedal 3 cannot rotate continuously after rebounding to the vertical position. The specific rotating process is as follows: because 2 fixed connection montants 1 of horizontal pole and 5 fixed connection horizontal poles 2 of briquetting, can make 4 pretensions of torsional spring after footboard 3 pushes down, when relaxing footboard 3, footboard 3 is automatic upwards to rotate under torsional spring 4's resilience force effect, and medical personnel need not to make progress by hand and break off the footboard off with the fingers and thumb, improve the folding efficiency of wheelchair, have effectively reduced medical personnel's working strength.

Through the stop collar 211 and the briquetting 5 that are located torsional spring 4 both ends, can be spacing to torsional spring 4, prevent its lateral sliding.

The first bending part 41 of the torsion spring 4 is placed in the groove 51 of the pressing block 5 more stably, and the sliding of the torsion spring 4 is further reduced.

As a further embodiment, an extension block 61 is disposed on the cross bar 2, a fixing rod 62 is disposed on the extension block 61, a moving rod 63 is slidably disposed inside the fixing rod 62, a through hole 32 is disposed on the housing 31, and one end of the moving rod 63 is disposed in the through hole 32. As shown in fig. 1, when the pedal 3 is pressed down to the horizontal position, the moving rod 63 is pushed outwards into the through hole 32 of the housing 3, so that the pedal 3 can be locked, the stability of the pedal in use is improved, and the pedal can be separated from the feet, so that the pedal does not retract upwards automatically. When the locking of the pedal needs to be released, the movable rod 63 is moved reversely, so that the use is convenient.

As a further example, the moving rod 63 is provided with a top block 64. As shown in fig. 1, when the pedal needs to be unlocked, a user can release the locking by kicking the top block 64 backwards through the heel without bending down and releasing the pedal through the hands, so that the use convenience is improved.

As a further embodiment, a cylindrical sleeve 312 is disposed on the inner top surface 311 of the housing 31, and the second bent portion 42 is disposed in the cylindrical sleeve 312. As shown in fig. 3, the bent portion is disposed on the cylindrical sleeve 312 to improve the downward movement stability of the pedal 3, and the second bent portion 42 is prevented from sliding in the inner top surface 311 by the limiting function of the cylindrical sleeve 312.

As a further embodiment, the vertical rod 1 comprises a fixed rod 11 and a movable rod 12, the movable rod 12 is slidably arranged inside the fixed rod 11, a limit bolt 13 for fixing the movable rod 12 is arranged outside the fixed rod 11, and the transverse rod 2 is fixed on the movable rod 12. As shown in figure 1, the vertical rod 1 is used through the sliding fit of the moving rod 12 and the fixed rod 11, the height of the vertical rod 1 is convenient to adjust, and the vertical rod is fixed through the limit bolt 13 in a pre-tightening mode and is convenient to adjust.

As a further embodiment, a U-shaped groove 33 is provided on the pedal 3, and a non-slip block 34 is provided in the U-shaped groove 33. The U-shaped channel 33 allows the foot to be placed therein and, in combination with the cleats 34, improves the grip, as shown in fig. 1.

As a further embodiment, the pressing block 5 is connected to the pre-tightening part 21 of the cross bar 2 through a bolt, so that the assembly and disassembly are convenient.

As a further embodiment, a cotter 212 is provided on the outer end of the pretensioning portion 21, and the cotter 212 is simple and efficient to fix.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A wheelchair step, comprising: montant, horizontal pole, footboard, torsional spring and briquetting, the horizontal pole right-hand member sets firmly in the montant lower extreme, footboard one end is connected with the casing, the casing rotates the pretension portion that the horizontal pole was located to the cover, the cover is equipped with the stop collar in the pretension portion, the briquetting is fixed in the pretension portion, the right-hand member contact casing edge of briquetting, the left end of briquetting is equipped with the recess, the recess is located the inboard top of casing, the torsion spring cover is located in the pretension portion, the first kink of torsional spring is located in the recess, the two interior top surfaces of contact casing of kink of torsional spring.

2. The wheelchair pedal of claim 1 wherein the cross bar is provided with an extension block, the extension block is provided with a fixed bar, the fixed bar is slidably provided with a moving bar inside, the housing is provided with a through hole, and one end of the moving bar is provided in the through hole.

3. A wheelchair step as claimed in claim 2 wherein the travel bar is provided with a top block.

4. The wheelchair pedal of claim 1 wherein the inner top surface of the housing is provided with a cylindrical sleeve, and the second bent portion is disposed in the cylindrical sleeve.

5. The wheelchair pedal of claim 1 wherein the vertical bar comprises a fixed bar and a moving bar, the moving bar is slidably disposed inside the fixed bar, a limit bolt for fixing the moving bar is disposed outside the fixed bar, and the cross bar is fixed on the moving bar.

6. The wheelchair step of claim 1 wherein said step is provided with a U-shaped channel, said U-shaped channel being provided with a non-slip feature.

7. A wheelchair step as claimed in claim 1 wherein the press block is bolted to the pretensioned portion of the cross bar.

8. A wheelchair step as claimed in claim 1, wherein a cotter pin is provided on the outer end of the pretensioning portion.