阅读说明：本技术 一种新型轮椅刹车驻车控制装置 (Novel wheelchair brake parking control device ) 是由 王艳奎 于 2021-08-31 设计创作，主要内容包括：本发明公开了一种新型轮椅刹车驻车控制装置,具体涉及轮椅技术领域,包括轮椅支架和轮胎,所述轮胎设于轮椅支架一侧,所述轮椅支架前端后侧固定设有支撑板,所述支撑板靠近轮胎的一侧设有外壳,所述外壳内部设有驻车控制拨片和刹车驻车拨片,所述驻车控制拨片位于刹车驻车拨片顶部。本发明通过驻车控制拨片的转动,使定位齿与刹车驻车拨片上的定位槽卡接固定,而在定位齿和定位槽卡接固定的同时也对刹车驻车拨片进行挤压,从而使刹车驻车拨片下端向轮胎方向移动并与轮胎接触,使轮胎达到驻车作用,定位齿和定位槽的配合采用的是工程力学的原理,两者卡接后,轮胎向前或向后,刹车驻车拨片都不会随之活动。(The invention discloses a novel wheelchair brake parking control device, and particularly relates to the technical field of wheelchairs. According to the invention, the parking control shifting piece rotates, so that the positioning teeth are clamped and fixed with the positioning grooves on the parking brake shifting piece, the parking brake shifting piece is extruded while the positioning teeth and the positioning grooves are clamped and fixed, the lower end of the parking brake shifting piece moves towards the tire direction and is in contact with the tire, the tire achieves a parking effect, the positioning teeth and the positioning grooves are matched by adopting the principle of engineering mechanics, and after the positioning teeth and the positioning grooves are clamped, the parking brake shifting piece cannot move forwards or backwards along with the tire.)

1. The utility model provides a novel wheelchair brake parking control device, includes wheelchair support (1) and tire (2), wheelchair support (1) one side, its characterized in that are located in tire (2): the wheelchair support is characterized in that a supporting plate (3) is fixedly arranged on the rear side of the front end of the wheelchair support (1), a shell (4) is arranged on one side, close to a tire (2), of the supporting plate (3), a parking control shifting block (5) and a brake parking shifting block (6) are arranged inside the shell (4), the parking control shifting block (5) is located at the top of the brake parking shifting block (6), the parking control shifting block (5) is located on the front side of the brake parking shifting block (6), one side, close to the brake parking shifting block (6), of the bottom end of the parking control shifting block (5) is fixedly provided with a positioning tooth (7), the cross section of the bottom end of the parking control shifting block (5) is provided with an arc shape, one side, close to the positioning tooth (7), of the bottom end of the parking control shifting block (5) is arranged as an inclined plane, one side, close to the parking control shifting block (5), of the top end of the brake parking shifting block (6) is provided with a positioning groove (8) in a penetrating mode, brake parking plectrum (6) are close to one side of constant head tank (8) and establish to the inclined plane, inclined plane on parking control plectrum (5) and the inclined plane looks adaptation on brake parking plectrum (6), location tooth (7) are located constant head tank (8) bottom, location tooth (7) and constant head tank (8) looks adaptation.

2. The novel wheelchair brake-parking control device of claim 1, characterized in that: the fixed two connecting axles (9) that are equipped with of one side inner wall that are close to backup pad (3) in shell (4), establish to T shape in connecting axle (9) cross-section, parking control plectrum (5) bottom and brake parking plectrum (6) top are inside all to run through and have seted up mounting hole (10), and two connecting axles (9) extend to inside two mounting holes (10) respectively, connecting axle (9) are inside to run through and have seted up screw thread interlude hole (11), one side that shell (4) are close to connecting axle (9) is run through and has seted up fixed orifices (12), fixed orifices (12) are linked together with screw thread interlude hole (11), be connected through the screw rod between wheelchair support (1) and connecting axle (9).

3. The novel wheelchair brake-parking control device of claim 2, characterized in that: and a gasket (13) is arranged at one end of each of the parking control shifting piece (5) and the brake parking shifting piece (6) close to the connecting shaft (9).

4. The novel wheelchair brake-parking control device of claim 2, characterized in that: parking control plectrum (5) top is fixed and is equipped with parking hand (14), the one end that shell (4) were kept away from in brake parking plectrum (6) extends to tire (2) front side, brake parking plectrum (6) cross-section is established to L shape, the outside cover in one end that brake parking plectrum (6) are close to tire (2) is equipped with plastics system external member (15).

5. The novel wheelchair brake-parking control device of claim 1, characterized in that: the inner wall of one side of the shell (4) close to the supporting plate (3) is fixedly provided with two arc-shaped reinforcing ribs (16), and the two arc-shaped reinforcing ribs (16) are arranged at intervals from top to bottom.

6. The novel wheelchair brake-parking control device of claim 1, characterized in that: the fixed spring coupling spare (17) that is equipped with of shell (4) front side, spring coupling spare (17) rear end runs through shell (4) and extends to inside shell (4), brake parking plectrum (6) are close to the one end of shell (4) and run through and have seted up spring coupling hole (18), spring coupling hole (18) are located inside shell (4), spring coupling hole (18) are located mounting hole (10) bottom on brake parking plectrum (6), be equipped with spring (20) between spring coupling spare (17) and spring coupling hole (18), spring (20) both ends are connected with spring coupling spare (17) and spring coupling hole (18) respectively.

7. The novel wheelchair brake-parking control device of claim 6, characterized in that: brake parking plectrum (6) are close to the one end of shell (4) and run through and have seted up brake hand brake line connecting hole (19), brake hand brake line connecting hole (19) are located spring coupling hole (18) bottom, brake hand brake line connecting hole (19) are located shell (4) bottom.

Technical Field

The invention relates to the technical field of wheelchairs, in particular to a novel brake and parking control device for a wheelchair.

Background

The wheelchair is an important tool for patient rehabilitation, and the function of the wheelchair is set to serve specific people or the elderly, especially for people with mobility disabilities, the wheelchair is not only a travel tool for physically disabled people, but also more importantly, the wheelchair enables the disabled people to do physical exercises and participate in social activities. The common wheelchair generally comprises a wheelchair frame, wheels, a brake device and a seat back. The hand-operated wheelchair is added with a hand-operated device on the basis of a common wheelchair.

The conventional common wheelchair brake and parking control device is composed of a plurality of components and respectively realizes control, the production process is complex, the operation is laborious and inflexible, and the brake and parking control device is easy to malfunction on uneven road conditions and slope road sections and has potential safety hazards; and the equipment formed by combining a plurality of components is easy to generate friction breakage among the components after long-time use, thereby causing control failure and having short service life.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a novel wheelchair brake parking control device, the positioning teeth are clamped and fixed with the positioning grooves on the brake parking shifting piece through the rotation of the parking control shifting piece, the brake parking shifting piece is extruded while the positioning teeth and the positioning grooves are clamped and fixed, so that the lower end of the brake parking shifting piece moves towards the tire direction and is in contact with the tire, the tire achieves a parking function, the positioning teeth and the positioning grooves are matched by adopting the principle of engineering mechanics, and after the positioning teeth and the positioning grooves are clamped, the brake parking shifting piece cannot move forwards or backwards, so that the problems in the background technology are solved.

In order to achieve the purpose, the invention provides the following technical scheme: a novel wheelchair brake parking control device comprises a wheelchair support and a tire, wherein the tire is arranged on one side of the wheelchair support, a supporting plate is fixedly arranged on the rear side of the front end of the wheelchair support, a shell is arranged on one side, close to the tire, of the supporting plate, a parking control shifting block and a brake parking shifting block are arranged inside the shell, the parking control shifting block is positioned at the top of the brake parking shifting block, the parking control shifting block is positioned on the front side of the brake parking shifting block, a positioning tooth is fixedly arranged on one side, close to the brake parking shifting block, of the bottom end of the parking control shifting block, the section of the bottom end of the parking control shifting block is provided with an arc shape, one side, close to the positioning tooth, of the bottom end of the parking control shifting block is provided with an inclined surface, a positioning groove is formed in a penetrating manner on one side, close to the positioning groove, of the brake parking shifting block is provided with an inclined surface, the inclined surface on the parking control shifting block is matched with the inclined surface on the brake parking shifting block, the positioning teeth are located at the bottom of the positioning groove and are matched with the positioning groove.

In a preferred embodiment, the inner wall of one side of the shell, which is close to the support plate, is fixedly provided with two connecting shafts, the cross section of each connecting shaft is set to be T-shaped, the bottom end of the parking control shifting block and the top end of the brake parking shifting block are both provided with mounting holes in a penetrating manner, the two connecting shafts respectively extend into the two mounting holes, threaded through holes are formed in the connecting shafts in a penetrating manner, one side of the shell, which is close to the connecting shafts, is provided with fixing holes in a penetrating manner, the fixing holes are communicated with the threaded through holes, and the wheelchair support is connected with the connecting shafts through screws.

In a preferred embodiment, the parking control shifting piece and the brake parking shifting piece are provided with gaskets at one ends close to the connecting shaft.

In a preferred embodiment, the top end of the parking control shifting block is fixedly provided with a parking handle, one end, away from the shell, of the brake parking shifting block extends to the front side of the tire, the cross section of the brake parking shifting block is designed to be L-shaped, and a plastic sleeve is sleeved outside one end, close to the tire, of the brake parking shifting block.

In a preferred embodiment, two arc-shaped reinforcing ribs are fixedly arranged on the inner wall of one side of the shell close to the support plate, and the two arc-shaped reinforcing ribs are arranged at intervals up and down.

In a preferred embodiment, the fixed spring coupling spare that is equipped with in shell front side, the spring coupling spare rear end runs through the shell and extends to the shell inside, the one end that the parking brake plectrum is close to the shell runs through and has seted up spring coupling hole, spring coupling hole is located the shell inside, spring coupling hole is located the mounting hole bottom on the parking brake plectrum, be equipped with the spring between spring coupling spare and the spring coupling hole, the spring both ends are connected with spring coupling spare and spring coupling hole respectively.

In a preferred embodiment, one end of the brake parking shifting piece close to the shell is provided with a brake hand brake cable connecting hole in a penetrating mode, the brake hand brake cable connecting hole is located at the bottom of the spring connecting hole, and the brake hand brake cable connecting hole is located at the bottom of the shell.

The invention has the technical effects and advantages that:

1. the invention ensures that the positioning teeth are clamped and fixed with the positioning groove on the brake parking shifting piece through the rotation of the parking control shifting piece, simultaneously the inclined surface on the parking control shifting piece is contacted with the inclined surface on the brake parking shifting piece, the fixing of the positioning teeth and the positioning grooves improves the stability of the positioning teeth and the positioning grooves, and the brake parking shifting piece is extruded while the positioning teeth and the positioning grooves are clamped and fixed, so that the lower end of the brake parking shifting piece moves towards the tire direction and contacts with the tire to achieve the parking function of the tire, the positioning teeth and the positioning grooves adopt the principle of engineering mechanics in a matching way, after the positioning teeth and the positioning grooves are clamped, the brake parking shifting sheet can not move along with the tire when the tire moves forwards or backwards, the connection is very ingenious, the safety of integral parking is enhanced, the positioning teeth and the positioning grooves are combined to realize multiple functions, the production process is simplified, the operation is convenient and sensitive, more labor is saved, and the service life is prolonged;

2. according to the invention, the spring is connected between the spring connecting piece and the spring connecting hole, so that after the positioning teeth on the parking control shifting piece are clamped with the positioning grooves on the brake parking shifting piece, the spring can stably connect the parking control shifting piece and the brake parking shifting piece, the situation that the parking control shifting piece and the brake parking shifting piece are separated due to the sliding of tires to cause out-of-control is prevented, and when the positioning teeth on the parking control shifting piece are separated from the positioning grooves on the brake parking shifting piece, the spring can quickly pull back the brake parking shifting piece, so that the whole body can normally run;

3. according to the invention, the brake hand brake wire connecting hole is formed in the brake parking shifting piece, so that the brake hand brake can directly control the brake parking shifting piece to swing left and right through the brake hand brake wire when the wheelchair is in emergency braking during normal walking, and the tire is controlled by the brake hand brake, the brake parking shifting piece has the dual functions of braking and parking, and the plastic sleeve piece is arranged, so that the tire is prevented from being damaged when the wheel contacts with the tire.

Drawings

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

Fig. 2 is a side view of the housing and the fixing hole of the present invention.

Fig. 3 is a side view of the positioning teeth and positioning slot of the present invention.

Fig. 4 is a side view of the mounting hole of the present invention.

FIG. 5 is a side view of the brake park lever and plastic sleeve of the present invention.

FIG. 6 is a side view of the park control paddle of the present invention.

FIG. 7 is a side view of the brake park lever of the present invention.

Fig. 8 is a side view of the outer shell and the arcuate reinforcing ribs of the present invention.

Fig. 9 is a view of the engagement between the positioning teeth and the positioning grooves of the present invention.

The reference signs are: 1. a wheelchair frame; 2. a tire; 3. a support plate; 4. a housing; 5. a parking control paddle; 6. a brake parking shifting sheet; 7. positioning teeth; 8. positioning a groove; 9. a connecting shaft; 10. mounting holes; 11. threading the hole; 12. a fixing hole; 13. a gasket; 14. a parking handle; 15. a plastic sleeve member; 16. arc-shaped reinforcing ribs; 17. a spring connector; 18. a spring connecting hole; 19. a brake hand brake cable connecting hole; 20. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 1-9 of the specification, the novel wheelchair brake-parking control device of the embodiment comprises a wheelchair support 1 and a tire 2, the tire 2 is arranged on one side of the wheelchair support 1, a support plate 3 is fixedly arranged on the rear side of the front end of the wheelchair support 1, a shell 4 is arranged on one side of the support plate 3 close to the tire 2, a parking control shifting piece 5 and a brake-parking shifting piece 6 are arranged inside the shell 4, the parking control shifting piece 5 is positioned at the top of the brake-parking shifting piece 6, the parking control shifting piece 5 is positioned on the front side of the brake-parking shifting piece 6, a positioning tooth 7 is fixedly arranged on one side of the bottom end of the parking control shifting piece 5 close to the brake-parking shifting piece 6, the cross section of the bottom end of the parking control shifting piece 5 is provided with an arc shape, one side of the bottom end of the parking control shifting piece 5 close to the positioning tooth 7 is provided with an inclined surface, one side of the top end of the brake-parking shifting piece 6 close to the parking control shifting piece 5 is provided with a positioning groove 8 in a penetrating manner, brake parking plectrum 6 is close to one side of constant head tank 8 and is established to the inclined plane, inclined plane looks adaptation on inclined plane on the parking control plectrum 5 and the brake parking plectrum 6, through stirring parking hand (hold) 14 drive parking control plectrum 5 and the location tooth 7 rotation on it to will fix a position tooth 7 and fix a position constant head tank 8 joint on the parking plectrum 6, thereby make 6 lower extremes of brake parking plectrum to 2 direction removals of tire and with tire 2 contact, make tire 2 reach the parking effect, what the cooperation of location tooth 7 and constant head tank 8 adopted is the principle of engineering mechanics, behind both joints, tire 2 is forward or backward rotation, and brake parking plectrum 6 can not move about thereupon, location tooth 7 is located constant head tank 8 bottom, location tooth 7 and constant head tank 8 looks adaptation.

The fixed two connecting axles 9 that are equipped with of one side inner wall that are close to backup pad 3 of shell 4, establish to T shape in the 9 cross-sections of connecting axle, 5 bottoms of parking control plectrum and 6 tops of brake parking plectrum are inside all to run through and have seted up mounting hole 10, and inside two connecting axles 9 extended to two mounting holes 10 respectively, connecting axle 9 is inside to run through and has seted up screw thread interlude hole 11, shell 4 runs through and has seted up fixed orifices 12 near one side of connecting axle 9, fixed orifices 12 is linked together with screw thread interlude hole 11, be connected through the screw rod between wheelchair support 1 and the connecting axle 9, establish parking control plectrum 5 and 6 erection sleeves of brake parking plectrum outside connecting axle 9 through mounting hole 10, make parking control plectrum 5 and 6 connecting axles of brake parking plectrum 9 move about in shell 4 is inside.

The parking control shifting piece 5 and the brake parking shifting piece 6 are provided with gaskets 13 at one ends close to the connecting shaft 9, and stability and tightness during subsequent installation can be enhanced through the arrangement of the gaskets 13.

The fixed two arc strengthening rib strips 16 that are equipped with of one side inner wall that is close to backup pad 3 of shell 4, two arc strengthening rib strips 16 interval from top to bottom set up, and arc strengthening rib strip 16's setting can guarantee that location tooth 7 and constant head tank 8 are parallel to each other to be convenient for subsequent joint location, also strengthened shell 4's intensity simultaneously.

The implementation scenario is specifically as follows: the parking control shifting piece 5 and the brake parking shifting piece 6 are installed and sleeved outside the connecting shaft 9 through the installing hole 10, so that the parking control shifting piece 5 and the brake parking shifting piece 6 can move inside the shell 4 through the connecting shaft 9, in the using process, the parking control shifting piece 5 and the positioning teeth 7 on the parking control shifting piece are driven to rotate by shifting the parking handle 14, in the rotating process, the positioning teeth 7 are clamped and fixed with the positioning grooves 8 on the brake parking shifting piece 6, meanwhile, the inclined surface on the parking control shifting piece 5 is contacted with the inclined surface on the brake parking shifting piece 6, the stability between the parking control shifting piece 5 and the positioning teeth is improved by mutually fixing, the brake parking shifting piece 6 is also extruded while the positioning teeth 7 and the positioning grooves 8 are clamped and fixed, the lower end of the brake parking shifting piece 6 moves towards the direction of the tire 2 and is contacted with the tire 2, the tire 2 achieves the parking function, and the positioning teeth 7 and the positioning grooves 8 adopt the principle of mechanical engineering, the two are clamped, the tire 2 rotates forwards or backwards, the brake parking shifting piece 6 cannot move along with the tire, the connection is ingenious, and the safety of integral parking is enhanced.

Referring to the attached fig. 3, 4, 5 and 7 of the specification, in the novel wheelchair brake parking control device of this embodiment, a spring connecting member 17 is fixedly disposed at the front side of the housing 4, the rear end of the spring connecting member 17 penetrates through the housing 4 and extends into the housing 4, a spring connecting hole 18 is formed at one end of the brake parking paddle 6 close to the housing 4, a spring (20) is connected between the spring connecting member 17 and the spring connecting hole 18, so that after the positioning teeth 7 on the parking control paddle 5 are clamped with the positioning grooves 8 on the brake parking paddle 6, the spring 20 not only can stably connect the parking control paddle 5 and the brake parking paddle 6 to prevent the two from being separated due to the sliding of the tire 2 and causing out-of-control, the spring connecting hole 18 is located inside the housing 4, the spring connecting hole 18 is located at the bottom of the mounting hole 10 on the brake parking paddle 6, a spring 20 is arranged between the spring connecting piece 17 and the spring connecting hole 18, and two ends of the spring 20 are respectively connected with the spring connecting piece 17 and the spring connecting hole 18.

The implementation scenario is specifically as follows: through connecting spring 20 between spring coupling 17 and spring coupling hole 18 to make location tooth 7 on the parking control plectrum 5 and the constant head tank 8 joint back on the brake parking plectrum 6, spring 20 not only can play the stable linking that makes parking control plectrum 5 and brake parking plectrum 6, prevent that both from appearing the separation because of the slip of tire 2 and leading to the condition emergence out of control, and when location tooth 7 on the parking control plectrum 5 and the constant head tank 8 on the brake parking plectrum 6 separation, spring 20 can pull back brake parking plectrum 6 fast, make whole ability normal operating.

Referring to the accompanying drawings 3-5 and 7 in the specification, the novel wheelchair brake parking control device of this embodiment, the fixed parking hand (hold) 14 that is equipped with in 5 tops of parking control plectrum, the one end that shell 4 was kept away from to brake parking plectrum 6 extends to tire 2 front side, brake parking plectrum 6 cross-section is established to L shape, the outside cover of one end that brake parking plectrum 6 is close to tire 2 is equipped with plastics system external member 15, through the setting of plastics system external member 15, can play and avoid causing the effect of damage to tire 2 when contacting with tire 2, improves the guard action to tire 2.

Brake parking plectrum 6 runs through the one end that is close to shell 4 and has seted up brake hand brake line connecting hole 19, brake hand brake line connecting hole 19 is located spring coupling hole 18 bottom, brake hand brake line connecting hole 19 is located shell 4 bottom, connects brake hand brake line through brake hand brake line connecting hole 19 to when the emergent brake of wheelchair normal walking, brake hand brake accessible brake hand brake line direct control brake parking plectrum 6 carries out the horizontal hunting, and with this controls tire 2, brake parking plectrum 6 has played brake and parking dual function.

The implementation scenario is specifically as follows: through set up brake hand brake line connecting hole 19 on brake parking plectrum 6, be convenient for connect brake hand brake line, thereby when the emergent brake of wheelchair normal walking, brake hand brake accessible brake hand brake line direct control brake parking plectrum 6 carries out the horizontal hunting, and control tire 2 with this, brake parking plectrum 6 has played brake and parking dual function, and through the setting of plastics system external member 15, can play and avoid causing the effect of damage to tire 2 when contacting with tire 2.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.