CN210750142U

CN210750142U - Bracket arm lifting adjusting structure of bracket arm four-wheel vehicle

Info

Publication number: CN210750142U
Application number: CN201921149715.8U
Authority: CN
Inventors: 张海卫; 吴晓江
Original assignee: Foshan Hfk Medical Technology Co ltd
Current assignee: Foshan Hfk Medical Technology Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-06-16
Anticipated expiration: 2029-07-19

Abstract

The utility model relates to a trailing arm lift adjustment structure of trailing arm four-wheel car belongs to medical rehabilitation apparatus technical field, including the connection main part that is used for connecting frame and trailing arm, be provided with the main part slide opening that runs through the connection main part perpendicularly on the connection main part, trailing arm below is provided with the flexible inner tube of trailing arm, the flexible inner tube of trailing arm slides and sets up in the main part slide opening, the perpendicular array in the outer side of the flexible inner tube lower half of trailing arm is provided with a plurality of flexible inner tube lockholes, be provided with on the connection main part and be used for locking the flexible inner tube of trailing arm, prevent the flexible inner tube of trailing arm from the lift adjustment locking mechanism that slides from top to bottom in the main part slide opening with flexible inner tube lockhole cooperation; when the height of the supporting arm needs to be adjusted, the locking mechanism is adjusted through lifting adjustment to lock the locking hole of the telescopic inner pipe after the telescopic inner pipe of the supporting arm is adjusted to the specified height. The utility model provides a structure has adjustable trailing arm height, accommodation process is convenient, resistant pressure-bearing, the locking is firm, long service life's advantage.

Description

Bracket arm lifting adjusting structure of bracket arm four-wheel vehicle

Technical Field

The utility model relates to a medical treatment rehabilitation apparatus technical field especially relates to a trailing arm lift adjustment structure of trailing arm four-wheel car.

Background

The arm-supporting four-wheel vehicle is mainly used for assisting patients with limited four limbs or old people with inconvenient movement to go out or perform rehabilitation training.

The existing trailing arm four-wheel vehicle at least has the following problems: the height of the supporting arm cannot be adjusted; the height of the supporting arm can be adjusted, but the adjusting process is too complicated, so that the supporting arm is inconvenient for a patient or an attendant to adjust; after the supporting arm is adjusted to the designated height, the supporting arm is easy to loosen and slide in the repeated use process due to long-time pressure bearing, even the adjusting and locking structure is invalid, and only a new supporting arm four-wheel vehicle can be replaced and maintained or purchased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art current situation, provide a trailing arm lift adjustment structure that adjustable trailing arm height, accommodation process are convenient, resistant pressure-bearing, the locking is firm, long service life.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a supporting arm lifting adjusting structure of a supporting arm four-wheel vehicle comprises a connecting main body part for connecting a vehicle frame and a supporting arm, wherein a main body part sliding hole vertically penetrating through the connecting main body part is formed in the connecting main body part, a supporting arm telescopic inner pipe is arranged below the supporting arm and is arranged in the main body part sliding hole in a sliding mode, a plurality of telescopic inner pipe locking holes are vertically arrayed on the outer side of the lower half portion of the supporting arm telescopic inner pipe, and a lifting adjusting locking mechanism used for being matched with the telescopic inner pipe locking holes to lock the supporting arm telescopic inner pipe and prevent the supporting arm telescopic inner pipe from sliding up and down in the main body part sliding hole is arranged on the connecting main body part;

when the height of the supporting arm needs to be adjusted, the locking mechanism is adjusted through lifting adjustment to lock the locking hole of the telescopic inner pipe after the telescopic inner pipe of the supporting arm is adjusted to the specified height.

Furthermore, the lifting adjustment locking mechanism comprises an adjustment pull buckle, an adjustment lock pin and an adjustment torsion spring, a locking mechanism accommodating groove is formed in the outer side of the main body part, the adjustment pull buckle is rotatably connected with the groove walls on two sides of the locking mechanism accommodating groove through a pull buckle pin, a lock pin sliding hole transversely penetrating through the main body part sliding hole in the main body part is formed in the bottom of the locking mechanism accommodating groove, the adjustment lock pin is slidably arranged in the lock pin sliding hole and locked in the telescopic inner pipe locking holes at different heights through adjusting the lock pin close to one end of the main body sliding hole, so that the telescopic inner pipes of the support arms are locked after being adjusted to different heights, a pull buckle waist-shaped hole transversely penetrates through one end of the adjustment pull buckle far away from the pull buckle pin, one end of the adjustment lock pin far away from the pull buckle pin is rotatably connected with the pull buckle waist-shaped hole through the lock pin, and a spring part of the adjustment torsion spring is sleeved on the pull buckle pin and used for One end of the waist-shaped hole is used for keeping the adjusting lock pin locked in the lock hole of the telescopic inner pipe;

when the inner telescopic pipe of the supporting arm is in a locked state, under the action of the adjusting torsion spring, one end of the adjusting wrench buckle, which is far away from the wrench buckle waist-shaped hole, deflects to one side, which is far away from the connecting main body piece, and the synchronous adjusting lock pin is driven by the adjusting wrench buckle to keep locked in the lock hole of the inner telescopic pipe, so that the inner telescopic pipe of the supporting arm is locked, and the supporting arm is prevented from sliding downwards in a pressed state;

when the height of the supporting arm needs to be adjusted, one end, far away from the wrench buckle waist-shaped hole, of the adjusting wrench buckle is pressed to overcome the elastic torsion force of the adjusting torsion spring, so that one end, far away from the wrench buckle waist-shaped hole, of the adjusting wrench buckle deflects to one side, close to the connecting main body piece, of the adjusting wrench buckle, and therefore the adjusting lock pin is driven to slide outwards in the lock pin sliding hole, and one end, close to the main body sliding hole, of the adjusting lock pin; at the moment, when the telescopic inner tube of the supporting arm is in an unlocking state, the supporting arm can be adjusted to the height required by a user by lifting or descending the telescopic inner tube of the supporting arm, and the telescopic inner tube lock hole with the corresponding height is locked again by releasing the adjusting wrench and the adjusting lock pin.

Further, the bracket lifting adjusting structure further comprises a bolt adjusting knob, an adjusting lock hole transversely penetrating through a sliding hole of the main body part inside the main body part is formed in the outer side of the main body part, the threaded portion at the front end of the bolt adjusting knob is in threaded connection with the adjusting lock hole, the bolt adjusting knob is rotated to abut against and press the telescopic inner pipe of the locking or separating unlocking bracket, the telescopic inner pipe of the bracket can be further locked through the bolt adjusting knob, and the phenomenon that the lifting adjusting locking mechanism or the telescopic inner pipe of the bracket is damaged and rocked under the high-frequency vibration or high-pressure bearing state is prevented.

Furthermore, the inside pore wall axial symmetry of main part slide opening is provided with multiunit direction boss, direction boss horizontal direction is parallel to each other or mutually perpendicular, when sliding lift adjustment support arm flexible inner tube through multiunit direction boss, reduces the resistance that the flexible inner tube of support arm slided and receives in the main part slide opening.

Further, connect the main part piece outside and be provided with the regulation boss, adjust the lockhole and transversely run through regulation boss and a set of direction boss wherein, it keeps away from to pull to detain to adjust to pull detain and detain waist shape hole one end and be provided with circular splenium, circular splenium is provided with anti-skidding arc recess or anti-skidding line.

Furthermore, a frame connecting pipe arm extending obliquely downwards is arranged at a position, below the adjusting lock hole, on the connecting main body part, and the frame connecting pipe arm is connected with a frame.

The beneficial effects of the utility model reside in that: the convenience of lifting, adjusting and locking the telescopic inner tube of the supporting arm is improved by adjusting the wrench buckle, the lock pin and the torsion spring; the telescopic inner pipe of the supporting arm is further locked through the bolt adjusting knob, so that the lifting adjusting locking mechanism is prevented from being damaged or the telescopic inner pipe of the supporting arm is prevented from shaking under the high-frequency vibration or high-pressure-bearing state; when the supporting arm telescopic inner pipe is adjusted in a sliding and lifting mode through the plurality of groups of guide bosses, the resistance applied to the supporting arm telescopic inner pipe in the sliding hole of the main body part is reduced; the adjustable supporting arm has the advantages of adjustable supporting arm height, convenience and rapidness in adjusting process, bearing resistance, stability in locking and long service life.

Drawings

Fig. 1 is a perspective view of a trailing arm four-wheeled vehicle.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic view of the telescopic inner tube of the bracket arm in a locked state.

Fig. 4 is a schematic exploded view of the structure of fig. 3.

Fig. 5 is an enlarged exploded view of the lift adjustment locking mechanism.

Fig. 6 is a perspective view of the connecting body member.

In the figure: 10. the frame, 11, connect the main part, 12, main part slide opening, 13, the direction boss, 14, locking mechanical system storage tank, 15, lockpin slide opening, 16, adjust the lockhole, 17, adjust the boss, 18, frame connecting tube arm, 19, adjust and pull the knot, 20, pull and detain waist shape hole, 21, circular pressing portion, 22, anti-skidding arc recess, 23, pull the knot pin, 24, adjust the lockpin, 25, lockpin pin, 26, adjust the torsional spring, 27, bolt adjust knob, 28, trailing arm, 29, the flexible inner tube of trailing arm, 30, flexible inner tube lockhole.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments:

referring to fig. 1-6, the present invention discloses a lifting adjusting structure for a supporting arm 28 of a supporting arm 28 four-wheeled vehicle, including a connecting body 11 for connecting a frame 10 and the supporting arm 28, wherein the connecting body 11 is provided with a body slide hole 12 vertically penetrating the connecting body 11, a supporting arm telescopic inner tube 29 is arranged below the supporting arm 28, the supporting arm telescopic inner tube 29 is slidably arranged in the body slide hole 12, a plurality of telescopic inner tube locking holes 30 are vertically arranged in an array outside the lower half portion of the supporting arm telescopic inner tube 29, and the connecting body 11 is provided with a lifting adjusting locking mechanism for locking the supporting arm telescopic inner tube 29 by being matched with the telescopic inner tube locking holes 30 and preventing the supporting arm telescopic inner tube 29 from sliding up and down in the body slide hole 12;

when the height of the bracket arm 28 needs to be adjusted, the telescopic inner tube locking hole 30 is locked after the bracket arm telescopic inner tube 29 is adjusted to a specified height through the lifting adjusting locking mechanism.

Preferably, the lifting adjustment locking mechanism comprises an adjustment trigger 19, an adjustment lock pin 24 and an adjustment torsion spring 26, a locking mechanism accommodating groove 14 is formed in the outer side of the connecting main body 11, the adjustment trigger 19 is rotatably connected with the groove walls on two sides of the locking mechanism accommodating groove 14 through a trigger pin 23, a lock pin sliding hole 15 transversely penetrating through the main body sliding hole 12 in the connecting main body 11 is formed in the bottom of the locking mechanism accommodating groove 14, the adjustment lock pin 24 is slidably arranged in the lock pin sliding hole 15 and locked in telescopic inner tube lock holes 30 at different heights through one end of the adjustment lock pin 24 close to the main body sliding hole, so that the telescopic inner tube 29 of the support arm is locked after being adjusted to different heights, a trigger waist-shaped hole 20 transversely penetrates through one end of the adjustment trigger 19 far from the trigger pin 23, one end of the adjustment lock pin 24 far from the telescopic inner tube lock hole 30 is rotatably connected with the trigger waist-shaped hole 20 through the lock pin 25, the spring part of the adjusting torsion spring 26 is sleeved on the trigger pin 23, and the adjusting trigger 19 is lifted around the trigger pin 23 and is away from one end of the trigger kidney-shaped hole 20, so that the adjusting lock pin 24 is kept locked in the telescopic inner tube lock hole 30;

when the inner telescopic bracket tube 29 is in a locked state, under the action of the adjusting torsion spring 26, one end of the adjusting buckle 19, which is far away from the buckle kidney-shaped hole 20, deflects to one side, which is far away from the connecting main body part 11, and the synchronous adjusting lock pin 24 is driven by the adjusting buckle 19 to keep locked in the inner telescopic tube lock hole 30, so that the inner telescopic bracket tube 29 is locked, and the bracket 28 is prevented from sliding downwards in a pressed state;

when the height of the supporting arm 28 needs to be adjusted, one end, far away from the wrench buckle kidney-shaped hole 20, of the adjusting wrench buckle 19 is pressed to overcome the elastic torsion force of the adjusting torsion spring 26, so that one end, far away from the wrench buckle kidney-shaped hole 20, of the adjusting wrench buckle 19 deflects to one side close to the connecting main body piece 11, the adjusting lock pin 24 is driven to slide outwards in the lock pin sliding hole 15, and one end, close to the main body sliding hole, of the adjusting lock pin 24 is separated from the telescopic inner tube lock hole 30; at this time, when the inner telescopic bracket tube 29 is in the unlocked state, the height of the bracket 28 required by the user can be adjusted by lifting or lowering the inner telescopic bracket tube 29, and the adjusting trigger 19 and the adjusting lock pin 24 are released to lock the inner telescopic tube lock hole 30 with the corresponding height again.

Preferably, the lifting adjusting structure of the supporting arm 28 further comprises a bolt adjusting knob 27, an adjusting locking hole 16 transversely penetrating through the main body part sliding hole 12 in the main body part 11 is formed in the outer side of the main body part 11, an internal thread is formed in the adjusting locking hole 16, a threaded portion at the front end of the bolt adjusting knob 27 is in threaded connection with the adjusting locking hole 16, the bolt adjusting knob 27 is rotated to abut against and lock or separate and unlock the supporting arm telescopic inner tube 29, the supporting arm telescopic inner tube 29 can be further locked through the bolt adjusting knob 27, and the lifting adjusting locking mechanism is prevented from being damaged or the supporting arm telescopic inner tube 29 is prevented from shaking under the high-frequency vibration or high-pressure state.

Preferably, a plurality of sets of guide bosses 13 are axially and symmetrically arranged on the inner hole wall of the main body part sliding hole 12, the guide bosses 13 are parallel to each other or perpendicular to each other in the horizontal direction, and when the inner bracket arm telescopic tube 29 is adjusted by sliding and lifting through the plurality of sets of guide bosses 13, the resistance force applied to the inner bracket arm telescopic tube 29 in the main body part sliding hole 12 is reduced.

Preferably, an adjusting boss 17 is arranged on the outer side of the connecting body member 11, the adjusting lock hole 16 transversely penetrates through the adjusting boss 17 and one group of guide bosses 13, a circular pressing portion 21 is arranged at one end, far away from the toggle kidney-shaped hole 20, of the adjusting toggle 19, and an anti-skid arc-shaped groove 22 is arranged on the circular pressing portion 21.

Preferably, a frame connecting pipe arm 18 extending obliquely downward is provided on the connecting body member 11 at a position below the adjustment locking hole 16, and the frame connecting pipe arm 18 is connected to the frame 10. .

Of course, the above illustration is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so all equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a trailing arm lift adjustment structure of trailing arm four-wheel car, a serial communication port, including the connection main part piece that is used for connecting frame and trailing arm, be provided with the main part slide opening of perpendicular through connection main part piece on the connection main part piece, the trailing arm below is provided with the flexible inner tube of trailing arm, the flexible inner tube of trailing arm slides and sets up in the main part slide opening, the perpendicular array in the flexible inner tube lower half outside of trailing arm is provided with a plurality of flexible inner tube lockholes, thereby be provided with on the connection main part piece and be used for locking the flexible inner tube of trailing arm, prevent that the flexible inner tube of trailing arm from gliding lift adjustment locking mechanism from top to bottom in the main part slide opening with flexible inner tube lockhole cooperation, adjust to appointed high back locking flexible inner tube lockhole at the flexible inner tube of trailing arm.

2. The trailing arm lifting adjusting structure of a trailing arm four-wheeled vehicle as claimed in claim 1, wherein the lifting adjusting locking mechanism comprises an adjusting wrench, an adjusting lock pin and an adjusting torsion spring, the outer side of the connecting body is provided with a locking mechanism accommodating groove, the adjusting wrench is rotatably connected with the two side groove walls of the locking mechanism accommodating groove through the wrench pin, the bottom of the locking mechanism accommodating groove is provided with a lock pin sliding hole transversely penetrating to the main body sliding hole inside the connecting body, the adjusting lock pin is slidably arranged in the lock pin sliding hole and locked in the telescopic inner tube lock holes at different heights through the adjusting lock pin near one end of the main body sliding hole, so as to lock the trailing arm telescopic inner tube after adjusting the trailing arm telescopic inner tube to different heights, one end of the adjusting wrench far from the wrench pin is transversely penetrated with a wrench waist-shaped hole, one end of the adjusting lock pin far from the lock hole of the telescopic inner tube is rotatably connected with the wrench waist-shaped hole through the lock, the adjusting torsion spring part is sleeved on the wrench pin and is lifted around the wrench pin to adjust the wrench buckle to be far away from one end of the wrench buckle waist-shaped hole, so that the adjusting locking pin is locked in the telescopic inner pipe locking hole.

3. The trailing arm lifting adjusting structure of the trailing arm four-wheel vehicle as claimed in claim 2, further comprising a bolt adjusting knob, wherein an adjusting locking hole transversely penetrating to the main body part sliding hole inside the main body part is formed in the outer side of the main body part, a threaded portion at the front end of the bolt adjusting knob is in threaded connection with the adjusting locking hole, and the bolt adjusting knob is rotated to press and lock or separate and unlock the telescopic inner tube of the trailing arm.

4. The trailing arm lifting adjusting structure of the trailing arm four-wheel vehicle as claimed in claim 3, wherein the inner hole wall of the main body part slide hole is axially and symmetrically provided with a plurality of groups of guide bosses, and the guide bosses are parallel or perpendicular to each other in the horizontal direction.

5. The trailing arm lifting adjusting structure of the trailing arm four-wheeled vehicle as claimed in claim 4, wherein the connecting body is provided with an adjusting boss at the outer side, and the adjusting lock hole transversely penetrates through the adjusting boss and one group of guide bosses.

6. The trailing arm lifting adjusting structure of the trailing arm four-wheeled vehicle as claimed in claim 5, wherein a frame connecting pipe arm extending obliquely downward is provided on the connecting body member at a position below the adjusting locking hole, and the frame connecting pipe arm is connected to the frame.